service manual DV717 &DV721SI SI Catalog 1.1 Safety precautions 1.1.1 Power supply 1.1.2 Precautions for antistatic 1.1.3 Precautions for laser head 1.1.4 About placement position 1.2 Maintenance method 1.2.1 Visualized method 1.2.2 Electric resistance method 1.2.3 Voltage method 1.2.4 Current method 1.2.5 Cutting method 1.2.6 Element substitution method 1.2.7 Comparison method 1.3 Required device for maintenance Chapter Two Functions and Operation Instructions 2.1 Features 2.2 Control Button Locations and Explanations 2.2.1 Front Panel Illustration 2.2.2 Rear Panel IIIustration 2.2.3 VFD Display Window Illustration 2.2.4 Remote Control Illustration 2.3 Accessories 2.4 FUNCTION SETUP 2.4.1 Function Setup 2.4.2 Language 2.4.3 Image 2.4.4 Sound 2.4.5 Playback Chapter One About Maintenance 1 1 1 1 1 2 2 2 2 2 2 2 3 3 3 4 4 4 4 5 5 5 7 7 7 7 7 8 9 2.4.6 Karaoke 2.4.7 Preference 2.4.8 Parental control 2.4.9 Initial setup 2.4.10 Rest to defaults 2.4.11 Exit 2.5 Specifications Chapter Three Principle and Servicing Section One Principle of the Player 3.1.1 Block diagramof the player 3.1.2 PCB board block diagram of the player 3.1.2 PCB board block diagram of the player 3.1.3 Introduction to IC of the player Section Two Unit Circuit Principle 3.2.1 Laser head pin introduction 3.2.2 Disc identification circuit 3.2.3 Laser power control circuit 3.2.4 Reset circuit 3.2.5 Clock circuit 3.2.6 Disc in/out circuit 3.2.7 Main axis braking circuit 3.2.8 Mute circuit and power-off quieting circuit 3.2.12 Audio circuit 3.2.13 Power circuit 3.2.9 Servo circuit 3.2.10 Decode circuit 3.2.11 Video circuit 3.2.14 MIC circuit 3.2.15 Headphone circuit 3.2.16 panel control circuit 3.2.17 AV output circuit Section Three Servicing Cases 3.3.1 Servicing cases 3.3.2 Troubleshooting flow chart 9 10 10 10 10 11 11 12 12 12 12 13 14 15 35 35 38 15 16 17 18 19 19 20 22 23 26 27 28 30 31 32 32 33 Section Four Waveformdiagram Section Five Function Introduction to IC 3.5.1 function introduction to Mt1389 3.5.2 function introduction to FLASH 3.5.3 function introduction to SDRAM 3.5.12 Function introduction to U503 (LM431A) 3.5.13 Function introduction to U502 Chapter Four Disassembly and Assembly Process 7.3.1 MIC circuit 7.3.2 Control panel circuit 7.3.3 Power circuit 7.4.1 Troubleshooting flow chart 7.5.1 PCB board 7.5.2 circuit diagram 3.5.4 function introduction to D5954 3.5.5 function introduction to Cs4360 3.5.6 Function introduction to CS5340 3.5.7 Function introduction to LM1117MP-1.8 3.5.8 Function introduction to HS0038A2 3.5.9 Function introduction to 4558/TDA1308 3.5.10 Function introduction to U501 (FDSH321) 3.5.11 Function introduction to ncp1200 Chapter Cinque PCB board & Circuit diagramt Section One PCB board Section Two circuit diagram Chapter six BOM List DV721SI Service Manual 7.1.1 Features 7.2.1 PCB board block diagram of the player 57 65 65 75 75 112 112 113 117 120 127 77 78 78 79 79 80 80 81 81 82 83 84 84 93 100 110 110 111 Chapter One About Maintenance 1.1 Safety precautions 1.1.1 Power supply When maintenance personnel are repairing DVD players, he should pay special attention to the power board with 220V AC and 330V DC which will cause hurt and damage to persons! 1.1.2 Precautions for antistatic Movement and friction will both bring static electricity which causes serious damages to integrated IC. Though static charge is little, when a limited quantity of electric charge is added to large- scaleintegrated IC, as the capacitance is very small in the meantime, now the integrated IC is very much easy to be struck through by static electricity or the performance will decrease. Thus static electricity prevention is of extraordinary importance. The following are several measures to prevent static electricity: 1. Use a piece of electric conduction metal with the length of about 2 metres to insert into the earth, and Fetch the lead wire from the top of the surplus metal and connect to the required static electricity device. The length and depth of the metal embedded under the earth should be determined according to the wettability of the local soil. For humid places, it may be shorter, and longer and deeper for dry places. If possible, it can be distributed and layed in terms of “#” shape. 2. On operating table-board, the antistatic table cushion should be covered and grounded. 3. All devices and equipments should be placed on the antistatic table cushion and grounded. 4. Maintenance personnel should wear antistatic wrist ring which should be grounded. 5. Places around the operating position should also be covered with electric conduction cushion or Painted with antistatic paint. 1.1.3 Precautions for laser head 1. Do not stare at laser head directly, for laser emission will occur when laser head is working, which will Hurt your eyes! 2. Do not use wiping water or alcohol to clean laser head, and you may use cotton swab. - 1 - 1.1.4 About placement position 1. Never place DVD player in positions with high temperature and humidity. 2. Avoid placing near high magnetic fields, such as loudspeaker or magnet. 3. Positions for placement should be stable and secure. 1.2 Maintenance method 1.2.1 Visualized method Directly view whether abnormalities of collision, lack of element, joint welding, shedding welding, rosin joint, copper foil turning up, lead wire disconnection and elements burning up among pins of elements appear. Check power supply of the machine and then use hands to touch the casing of part of elements and check whether they are hot to judge the trouble spot. You should pay more attention when using this method to check in high voltage parts. 1.2.2 Electric resistance method Set the multimeter in resistance position and test whether the numerical value of resistance of each point in the circuit has difference from the normal value to judge the trouble spot. But in the circuit the tested numerical value of resistance is not accurate, and the tested numerical value of integrated IC's pins can only be used for reference, so the elements should be broken down for test. 1.2.3 Voltage method Voltage method is relatively convenient, quick and accurate. Set the multimeter in voltage position and test power supply voltage of the player and voltage of a certain point to judge the trouble spot according to the tested voltage variation. 1.2.4 Current method Set the multimeter in current position and test current of the player of a certain point to judge the trouble spot. But when testing in current method, the multimeter should be series connected in the circuit, which makes this method too trivial and troublesome, so it is less frequently used in reality. 1.2.5 Cutting method Cutting method should be combined with electric resistance method and voltage method to use. This method is mainly used in phenomena of short circuit and current leakage of the circuit. When cutting the input terminal voltage of a certain level, if voltage of the player rises again, it means that the trouble lies in this level. - 2 - 1.2.6 Element substitution method When some elements cannot be judged good or bad, substitution method may de adopted directly. 1.2.7 Comparison method A same good PC board is usually used to test the correct voltage and waveform. Compared these data with those tested through fault PC board, the cause of troubles may be found. Through the above maintenance method, theoretical knowledge and maintenance experience, all difficulties and troubles will be readily solved. 1.3 Required device for maintenance Digital oscillograph ( 100MHE) TV set SMD rework station Multimeter Soldering iron Pointed-month pincers Cutting nippers Forceps Electric screw driver Terminals connecting cord Headphone Microphone - 3 - Chapter Two Functions and Operation Instructions 2.1 Features This player has employed the new generation DV decode chip with built-in Dolby Digital decoder which willbring you to a brand-new AV ententainment world. The 2-laser super error-correction mechanism supports CD-R. 1.Compatible with DivX, MPEG4 discs to produce wonderful pictures. 2.108MHz/12bit video DAC, with more vivid and brilliant pictures. 3.Progressive-scan video outputs to eliminate the flickers hardly ouvercome by interlacing scan and therefore your eyesight will be well-protected. At the same time, the pictures deflnltion Is sharply enhanced and the pictures will be finer, smoother and stabler 4.Brightness, chroma and contrast adjustment functions to render your eyes more comfortable. 5.Digital echo Karaoke to enable your singing easier. 6.Composite Video, S-Video and Component Video outputs. 7.Bullt-In Dolby Digital decoder, separate 5.1Ch Outputs. 8.Dolby output for 2channel(DOWNMIX). 9.DVD-Audio decoding output to reproduce original and realistic sound effects. 1.Optical and coaxial outputs for Digital audio. 2.DTS, Dolby Digital, PCM Digital audio outputs to satisfy the Fans’Ss acoustic requirements. 1.Screen saver protects your TV set carefully. 2.The novel Mp3 playback window GUI provides you a new way to appreciate Mp3 music. 3.Multi-angle playback function makes it possible for you to view a scene from different camera angles. 4.It’s possible to select the desired beginning, development and ending of a story. 5.Direct entry into desired scenes(title/chapter/track search). 6.Zooming function to zoom up any playing picture. 7.Capable of playing PAL/NTSC discs. 8.Multiple aspect ratios to fit TV sets of various screen ratios. 9.Parental lock function to prevent children from watching unsuitable discs. 10.Multiple dubbing languages and subtitle languages bring you the best entertainment status all the time. Brand-new AV Effects High Quality Digital Audio Many Convenient Features Super Compatibility with super VCD, VCD, CD , CD-R , MP3,HDCD,KODAK PICTURE CD etc. 2.2 Control Button Locations and Explanations 2.2.1 Front Panel Illustration - 4 - 1 2 3 4 5 6 7 8 2 6 5 4 7 8 3 POWER switch Disc tray OPEN/CLOSE button PLAY button PAUSE button STOP button IR SENSOR Display windows 2.2.3 VFD Display Window Illustration 2.2.2 Rear Panel IIIustration 2 7 8 10 12 3 4 SVCD MP3 PBC ALL 6 11 9 5 8 1 2 3 4 5 6 7 8 Mixed Audio Out jack 5.1CH Audio Out jacks Digital Audio Coaxial Out jack Digital Audio Optical Out jack Video Component/Y Pb Pr Out jacks S-Video Video Out jack SCART Outjack 1 2 3 4 5 6 7 8 DVD disc PBC Chapter or Track Playback time DTS VCD CD SVCD Disc MP3 Disc Playback status indication 、 、 9 10 11 12 PLAY Repeat PAUSE DOLBY Digital 2.2.4 Remote Control Illustration - 5 - 1 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Button Open or close the disc tray. LANG Button Change the audio language or audio channel MEMORY Button Save the playing point or jump to the saved point DISP Button Display or hide disc information. NUMBER Buttons BROWSE Buttons switch new user interface. CURSOR Buttons SETUP Button Function Setup. Button Open/close the virtual keyboard function. KARAOKE Button Karaoke operation menu. Button Fast backward play. Button Skip backward. PEPEAT Button Repeat play. A-B Button Repeat the select. Button Press once to stand by, Press twice to play. SUBT Button Change subtitle language, Switch JPEG display mode. Q-PLAY Button Skip the advertisement/warning and play the DVD directly. ANGLE Button Change camera angle . MENU Button 2 3 Display DVD menu or open/close PBC. OK Button Cancel Button ZOOM +/-Button Zoom in/out the displayed frame. Button Play or pause playback. Button Fast forward play. Button Stop playback. Button Skip forward. CAPTURE Button Set the played image as the power-on logo. VOL +/- Button Increase/decrease volume level. MUTE Button Press once to mute, twice to turn off. 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 - 6 - - 7 - 1PCS 1PCS 1PCS 1PCS 2PCS 1PCS 2.3 Accessories AUDIO/VIDEO CORD REMOTE AAA SITE BUTTERIES WARRANTY CARD USER MANUAL KARAOKE DISC 2.4 FUNCTION SETUP 2.4.1 Function Setup 1.Press the [SETUP] button and the screen displays the selection menu of function setup. Setup menu DVD menu Soundtrack Subtitle Off Language Image Sound Playback Karaoke Preference Parental control Initial setup Reset to defaults Exit Setup menu DVD menu Soundtrack Sbutitles Off Russian English Ukrainian High Medium Low TV system Video out. TV Sharpness Gamma Brightness Contrast Hue Saturation TV scan mode format AUTO Com. LB L. Off 0 0 0 0 IS TV system Video out. TV Sharpness Gamma Brightness Contrast Hue Saturation TV scan mode format AUTO S-Vid. LB L. Off 0 0 0 0 IS AUTO PAL NTSC 2.Press the [CURSOR] button to select the menu to be entered and press the [OK] or button to confirm. Or press the [CURSOR] button to Exit item and then press the [OK] button to exit 3.Press [UP/DOWN] arrow to select the desired item you want to set and press [OK]. For example, press [UP/DOWN] arrows to select IMAGE and press [OK]. The Image setting page appears on the screen. 4.Press [UP/DOWN] arrow to select the SHARPNESS item. Press [OK] to confirm it. And then press [UP/DOWN] arrow to select the desired valus.For example: Press[ UP/DOWN] arrow to select “Medium” ,then press [OK], the TV screen display. 5.Press [LEFT] button if you want to return to the previous setup page. 6.Press [SETUP ]to exit the setup menu. 2.4.2 Language 1.Setup menu: This item is used to set the prompts language on the screen. Optional setting: Russian, English, Ukrainian. Default: English. 2.DVD menu: To set the preference disc menu lang when playing. Optional setting: Default: English. 3.Sountrack:To set the preference audio language when playing. Optional setting: Default: English. 4.Subtitles: To set the preference subtitle language when playing. Optional setting: Off, Default: Off ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ 2.4.3 Image. Russian, English, Estonian, Latvian, Kazakh, Romanian, Byelorussian, Ukrainian, Chinese, Others. Russian, English, Estonian, Latvian, Kazakh, Romanian, Byelorussian, Ukrainian, Chinese, Others. Russian, English, Estonian,Latvian, Kazakh, Romanian, Byelorussian, Ukrainian, Chinese, Others. TV system Video out. TV Sharpness Gamma Brightness Contrast Hue Saturation TV scan mode format AUTO Com. LB L. Off 0 0 0 0 IS AUTO PAL NTSC Mixer... Digital output Tuning Configuration Stereo mix Surr. Mix Low band Channels Delays PRO Logic II St. L+R off FSW Off Stereo 5.1 Configuration Stereo mix Surr. Mix Low band Channels PRO Logic II Delays St. L+R off FSW. Auto 1.TV system: This item is used to the video output system of this unit. Optional setting: Auto, PAL, NTSC. Default: AUTO. 2.TV scan mode: To set . 3.Video output: To set the types of SCART out connector. Optional setting: S-Video,Component , SCART, Default: Component When using RGB outputs from the SCART interface,please select RGB. Other wise , please select Com-ponent,and when using S- Video output please select S-Video. 4.TVn format: To set the aspect ratio of this player’s output image. Optional setting: 4:3 Pan-scan, 16:9 letterb., 16:9 TV. Default: 16:9 letterb. 5.Sharpness:Used to set the sharpness of video outputs. Optional setting: High, Medium, Low. Default: Medium. Optional setting: High, Medium, Low, Off. Default: Off. 7.Brightness:Used to set the brightness of video outputs. 8.Contrast:Used to set the contrast of video outputs. 9.Hue: Used to set the hue of video outputs. 10. A. B. ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ 2.4.4 Sound Progressive scan, Interlaced scan mode Optional settings: Progressive , Interlaced . Default: Interlaced . 6.Gamma emendation:This item is used to setup the Gamma value of video output. Saturation: Used to set the saturation of video outputs. Brightness, contrast, hue and saturation adjusting means: Press [UP/DOWN] arrow in the video setup menu to select the desired item you want to adjust. Press [OK] or [RIGHT] button to enter the item's adju-stment. Press [UP/DOWN] arrow to adjust the setting value. ◆ ◆ ◆ 1.Mixer... A.Configuration: To set this player’s DOWNMIX mode to change multi-channel audio into two channel audio. Optional setting: Stereo, 5.1 Default: Stereo. B.Stereo mix: To set the output means of the left or right audio when playing a Dolby disc with separate two-channel audio. Optional setting: L+R, L, R. Default: L+R. C.Surr. Mix: To set output means of the surround left and right audio when playing a stereo disc. Optional setting: Off, sum, Virt.Surr. Default: Off. D. Low band: select the channel that you desire to output low frequency signal. Optional setting: Front F, Center C, Surround Sr, Subwoofer SW. Default: Front F, Subwoofer SW. E. Channels: ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ To set volume of each individual channel. a. Press [UP/DOWN] navigation keys to select CHANNEL TRIM, then press the [OK] or [RIGHT] navigation key to select ENTER SETUP PAGE as shown in the TV screen: 20 Volume L FRONT surround R l r Center SW 0 0 0 0 0 0 b. Press [LEFT/RIGHT] navigation keys to select the desired channel to adjust. c. Press [UP/DOWN] navigation keys to raise or lower volume of the channel. d. Press [OK] or [LEFT] to return to the Mix.. setup page. F. Delays: To set delay time of the Center/ Surround/Subwoofer Speaker. - 8 - Center LS/RS Subwoofer 0cm 0cm 180cm a. Press [UP/DOWN] navigation keys to select Delays in Channels item, then press [OK] or [RIGHT] navigation key select ENTER SETUP PAGE as shown in the TV screen. b.Press [UP/DOWN] navigation keys to Select the desired item oup Press [OK] or [RIGHT] button to enter setting. C.Press [UP/DOWN] navigation keys to raise or lower volume. d.Press [OK] or [LEFT] to return to the Delays in channels setting page. Optional setting: Auto, On, Off . Default: Auto. select to set the format and stream form of digital audio output. A.SPDIF format: Optional setting: RAW format, SPDIF/PCM. Default: RAW format. B.LPCM Optional setting: 48 kHz 16 bit, 96 kHz 24 bit, 192kHz24bit. Default: 48 kHz 16 bit. A.Max volume: set the maximum volume limit. B.Equalizer: To set Equalizer modes. Optional setting: Off, Rock, Pop, Live, Dance, Techno, Classic, Soft. Default: Off. C.Echo: To set different sound field effects. Optional setting: Off, Concert, Living room, Hall,Bathroom, Cave, Arena, Church. Default: Off. D.Tone balance ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ 2.Digital output: 3.Tuning: G.PRO Logic II: To set PRO Logic II to ON or OFF. If the TITLE does not support this function, we recommend that you set this item to AUTO because it would become worse if the processing effects were added forcibly. : to set the tone level to match your diapason when you're singing a.Press [UP/ DOWN] cursor buttons to select "tone"item in Audio Setting page, and then press [OK] or [RIGHT] button to enter Adjustment Menu. Method to adjust tone control: B.Press [UP/DOWN] cursor button to adjust setting value. ◆ c. Press [OK] or [LEFT] button to return to Audio Setting page after adjustments are done. 2.4.5 Playback DVD VCD/SVCD Files Repeat Load effect Advertisemenu No A. P. V Off Off Microphone Kar. help Volume Echo On Off Off No ast. 5 5 1.DVD: set whether information ofadvertisement and warnings at the beginning of DVD disc is skipped to play the movie directly. Optional setting: Yes, NO Default: Number 2.VCD/SVCD: To set the PCB status. When playing Super VCD or VCD2.0 discs, if thePCB is ON, the menu image displays. Optional setting: On, Off. Default: On. 3.Files:data disc may probably includes Mp3, JPEG and MPG format files in which you may select DVD player to read the file type. Optional setting: Audio, Picture, Video. Default: Audio, Picture, Video. 4. Repeat : select the repeat playback mode. Optional setting: Off, Single, all. Default: Off. 5. Load effect: set the may to play JPEG image. Optional setting: Off, from top, from bottom. Default: Off. Always skip ads ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ 2.4.6 Karaoke 1.Microphone: switch on or off microphone. Optional setting: On, Off Default: Off. 2.Kar. help: select accompany singing means. Optional setting: Channels L, Channels R, Channels No ast, Channels No voc. Default: Channels No ast. 3. Volume: A.In microphone setup page, press [UP/DOWN] cursor to select “Volume” item, and then press [OK] button to enter the adjustment menu. B.Press [UP/DOWN] cursor to adjust the setup value. ◆ ◆ ◆ ◆ - 9 - Microphone Kar. help Volume Echo On No ast. 4 Microphone Kar. help Volume Echo On No ast 4 4 C.After adjustment finishes, press [OK] button to return to microphone setup page. 4.Echo: A.In microphone setup page,press [UP/DOWN] cursor to select “Echo” item, and then press [OK] button to enter the adjustment menu. B.Press [UP/DOWN] cursor to adjust the setup value. C.After the adjustment finishes, press [OK] button to return to microphone setup page. LED Control Gr. equalizer Background Screen saver On Off On Off std. On Auto PAL NTSC any Kid G PG PG-13 PGR R NC-17 Allowed.. Set password Any Old password New password Verify OK Cancel 2.4.7 Preference 1.LED Control:This item is used set color of led on the front panel. Optional setting: On, Off. Default: On. 2.Gr. equalizer: This item is used to set wether the Dynamic Spectrum is allowed. Optional setting: On, Off. Default: Off. Dynamic Spectrum display is invalid in Data disc DVD AUDIO playback. 3.Background: This item is used ti setup the sort of Power-in Logo. Optional setting: Standard, saved. Default: Standard. NOTE The Screen Logo refers that use the image selected by pressing the [CAPTURE] button as the power-on logo. When in the operation of changing screen, if the power-on logo has not set in Screen Logo, the unit will automatically set the power-on logo as Screen Logo. 4.Screen saver: Open or close the screen saver function. ◆ ◆ ◆ ◆ ◆ 、 ◆ ◆ ◆ ◆ Optional setting: On, Off. Default: On. 2.4.8 Parental control 1.Allowed..: To set the parental control ratings to prevent children from watching the restricted contents.( In case the discsupports this function.) Optional setting: any, Kid, G, PG, PG-13, PGR, R ,NC-17. Default: any. 2.Set password: To set four digit password to enable you to change the parental control ratings. Default: 7890 ◆ ◆ ◆ 2.4.9 Initial setup Press [UP/DOWN] arrow to select the desired option and Press [OK] button to confirm it. NOTE 2.4.10 Rest to defaults In this setup state, you may not press [LEFT] button to return to the previous menu. Load factory settings OK Cancel - 10 - Language Image Sound Playback Karaoke Preference Parental control Initial setup Reset to defaults Exit Reset to defaults: To restore all settings to the default value except for the parental control and password settings. 2.4.11 Exit Press [UP/DOWN] arrow to select the Exit item. Press [OK] button to exit the setup menu. 2.5 Specifications ◆ ◆ Design and specifications are subject to change without notice. We do not guarantee that all discs can be played smoothly due to the disc quality ,disc recording quality and recording format. Playable discs Inputs Audio outputs Analog audio output: Stereo,output 5.1CH Digital audio output: Coaxial,Optical Video outputs Composite,S-Video,component Y Cb Cr,progressive scan output Y Pb Pr,RGB/SCART Vidio characteristics Audio characteristics Operating voltage Power consumption General specification Operating temperature Operating humidity Outputs Dimensions: 380×258×41.5 mm Mass: 2 kg MIC input 15-75(no condensation) 5-35℃ ~110-250V,50/60Hz 14W DVD-Video,Super VCD,VCD,DivX 3.11,dIVx 4,DivX 5,DivX Pro,XviD,DVD-Audio, CD-DA, CD+DG, HDCD, MP3,WMA,Kodak Picture CD,JPEG Video amplitude: 1.0Vp-p(75Ω ) S-Video amplitude: Y:1.0Vp-p(75Ω ) C:0.286Vp-p(75Ω ) Component video amplitude: 1.0Vp-p(75Ω ) Cb/Cr:0.7Vp-p(75Ω ) Frequency response 20-20000Hz(±dB) Signal-to-noise ratio >100(dB) THD <0.01% Headphones output - 11 - - 12 - Chapter Three Principle and Servicing Section One Principle of the Player 3.1.1 Block diagram of the player DV717SI is composed of decode circuit, servo circuit, audio circuit, video circuit, MIC circuit and power circuit. Block diagram is shown as in the following figure 3.1.1.1: KEY LED U207 (Cs4360) Audio output U201 (Mt1389) Video output Loader 1.8V URST# Remote control Microphone 2 I C U401 (Pt6961) U403 (HS0038A2) U601 4558 U210 (Cs5340) U302 (D5954) U205 (HCU04) U214 (FLASH) U211 (SDRAM) U209 (LM1117MP-1.8) U202 (24LLC02) 4580 2 I C 2 I C U219 U220 U221 LT RT LS RS LFT CC U603 BOARD A/V OUTPUT Headphone output jack L R H_L H_R TDA1308 Figure 3.1.1.1 Block diagram of the player Loader frame Small bracket XS307 Xs306 XS301 Decode board 2521S-0 Main panel 4973-21 Subsidiary panel 9973-2 Power board 5DV717-0 AC220V Xs403 XS201 XS203 VFDST VFDCK VFDAT IR GND XS402 CN502 XS401 CN502 AV board 7717-0 MIC and headphone board 6717-0 XS203 XS702 XS603 XS601 LFE CC SR SL R L VIEDO Pb Y1 Pr VCC SPDIF PDAT1 Y C PDAT0 PDAT2 +10V Laser head 3.1.3 Introduction to IC of the player Introduction to IC of the player is shown as in the following table: Semi-finished PCB name IC model name Location Function AZ431 U503 Precise voltage regulator HS817 U502 Photoelectric coupler FSDH321 U501 Power switch IC PT6312 U401 Control panel IC HS0038B3V U402 Remote control receiver KA4558 U601 Operational amplifier (MIC amplifying) TDA1308 U603 Headphone amplifying NJM4558 U219,U220,U221 Operational amplifier (audio amplifying) HCU04 U205 Phase inverter HY57V641620HGT-7 U211 SDRAM LM1117 U209 1.8V voltage regulator IC 24C02 U202 EEPROM MT1389 C version U201 Decode chip D5954 U302 Servo drive CS4360 U207 D/A inverter CS5340 U210 A/D inverter 29LV160BE U214 FLASH Decode board 2521S-0 Power board 5DV717-0 Main panel 4973-2 OK board 6717-0 - 14 - - 15 - Section Two Unit Circuit Principle Pin Name Signal flow direction DVD disc CD disc No disc Function description 1 F- Input loader 2.52 2.34 0.46 2 F+ Input loader 2.49 2.49 0.93 3 T+ Input loader 2.53 2.51 0.94 4 T- Input loader 2.58 2.51 0.93 5 C Input MT1389 2.2 2.25 2.04 Disc data signal 6 D Input MT1389 2.2 3.2 2.04 Disc data signal 7 IOA Input MT1389 0.01 3.2 3.21 Disc identification signal, CD is 3.3V, DVD is 0V 8 RF Input MT1389 2.21 2.53 1.28 The sum of disc data signal 9 A Input MT1389 2.17 2.22 2.04 Disc data signal 10 B Input MT1389 2.19 2.27 2.04 Disc data signal 11 F Input MT1389 2.07 2.44 2.03 Supplementary signal used in trace 12 GND Ground 0.01 0.01 0 Grounding 13 V20 Input loader 2.04 2.06 2.03 Reference voltage 14 Vcc Input loader 5.04 5.04 5.02 Supply voltage for loader 15 E Input MT1389 2.06 2.45 2.03 Disc data signal 16 Blanking haning in air 0.01 0 0 unused 17 VR-CD Input loader 0.21 0.01 0 Through the handling inside loader, make sure MD11 is 180mV when reading CD 18 VR-DVD Input loader 0.01 0.2 0 Through the handling inside loader, make sure MD11 is 180mV when reading DVD Focus error signal is added to two sides of pick-up focus coil Trace error signal is added to two sides of pick-up trace coil 3.2.1 Laser head pin introduction Laser head pin introduction is shown in the following table: 19 LD-CD Input loader 0.09 2.1 0 CD laser power control signal 20 MDII Input MT1389 0.21 0.2 0 CD and DVD laser power monitoring signal 21 HFM Input loader 5.04 5.04 5.02 High frequency overlapping signal produces laser with different wave length inside loader 22 Blanking unused 0.01 0.1 0 23 LD-DVD Input loader 2.21 0.1 0 DVD laser power control signal 24 GND unused 0.01 0.01 0 Grounding Note: 1. When reading DVD, there are only A, B, C, D signals. 2. When reading CD, there are A, B, C, D, E, F signals. 3. RFO=A+B+C+D. 4. Focus error signal=(A+C)-(B+D) Trace error signal=E-F. 3.2.2 Disc identification circuit 1. The circuit schematic diagram is shown as the following figure 3.2.2.1: 2. Working principle: when reading CD disc, the loader outputs a high level (3.3v) to IOA; when reading DVD disc, the loader outputs a low level (0V) to IOA. When reading CD disc, IOA is high level; V304 and V305 are on; V305 collector electrode is low level;V303 drain electrode is equal to hang in the air (laser receiver pipe inside loader selects CD channel). When reading DVD disc, IOA is low level; V304 and V305 cut off; V303 is on; V304 drain electrode is equal to hang in the air (laser receiver pipe inside loader selects CD channel). Note: V303 and V304 are MOS pipe. Figure 3.2.2.1 Disc identification circuit DQSO U201 Loader R309 10K R308 100K R311 10K R310 100K V303 2SK3018-S V304 2SK3018-S V305 3904-S IOA AVCC 16 17 7 R311 R0 MT1389 114 - 16 - 2. Working principle: Pin 20 of MT1389 is VCD laser power strong/weak signal input checking pin; pin 21 is DVD laser power strong/weak signal input checking pin; 23 pin is VCD laser power drive control output pin and pin 22 is DVD laser power drive control output pin. When reading VCD disc, if pin 20 of U201 (MT1389) has detected that the laser output power it too strong, after being processed by U201 (MT1389) internal circuit, pin 23 output voltage increases and the on-state degree of V302 decreases to make the voltage supplied for pick-up decrease and the light emitting of laser head become weak. If pin 20 has detected that the laser output power is too low, pin 23 output voltage decreases; on-state degree of V302 increases and the light emitting of laser head become strong to reach the purpose of automatically adjusting laser output power. When reading DVD disc, pin 21 is signal input checking pin and pin 22 is drive control output pin. The working principle is the same with that when playing VCD disc. 3. Key point voltage (unit: V), shown as the following table: Figure 3.2.3.1 Laser power control circuit diagram A B C D E F G U201 Loader 3.2.3 Laser power control circuit 1. The circuit schematic diagram is shown as the following figure 3.2.3.1: Key point Position Voltage when reading DVD Voltage when reading VCD A Emitter electrode of V301 2.9 3.2 B Base electrode of V301 2.2 3.2 C Collector electrode of V301 2.2 0 - 17 - 3.2.4 Reset circuit 1. The circuit schematic diagram is shown as the following figure 3.2.4.1: 2. Working principle: The two ends voltage of capacitor T217 cannot change suddenly, anode of the capacitor begins charging from 0V and now triode Q204 is on. Pin 5 of phase inverterU205 (HCU04) output port is high voltage and pin 6 of it is low voltage to reset chip U201 (MT1389) and chip U214 (FLASH). When charge of the capacitor is close to 3.3V, triode Q204 cut off; pin 5 of phase inverter input port is low level; phase inverter outputs high voltage from pin 6 and MT1389 reset finishes. After reset of MT1389, reset signal is also given to sound D/A conversion chip CS4360 and sound A/D conversion chip CS5340V for their resetting. 3. Key point voltage (unit: V), shown as the following table: Figure 3.2.4.1 Reset circuit schematic diagram Key Point Position Voltage Remark DV33 (pointA) Cathode of diode VD201 3.3V After power-off, TC217 discharge current from this point Point B Anode of diode VD201 After reset finishes, 3.3V After reset finishes, voltage rises from0V up to 3.3V. Point C Pin 5 of phase inverter After reset finishes, 0V After reset finishes, voltage decreases from 3.3V down to 0V. U210( CS5340) U207( CS4360) U201 D Collector electrode of V302 0 2.2 E Base electrode of V302 3.2 2.2 F Emitter electrode of V302 3.2 2.9 G one end of R228 0.2 0.2 - 18 - Figure 3.2.5.1 Clock circuit 3.2.5 Clock circuit 1. The circuit schematic diagram is shown as the figure 3.2.5.1. Note: Elements marked with “X” symbol are those unused in practice. 2. Working principle: 27MHZ clock provides working clock for system. When powering on, capacitor C275 and C276 will generate a concussion, so a vibration occurs on crystal oscillator. After several times of feedback, a stable 27MHZ clock signal is finally generated on crystal oscillator.The function of phase inverter is to increase feedback coefficient and for isolation. 3. This circuit may probably cause these troubles: power supply not connected; not read disc; colour distortion of picture and no colour of picture. Note: DC voltage of point A and B is 1.47V when in normal working. 1. The circuit schematic diagram is shown as the following figure 3.2.6.1: 3.2.6 Disc in/out circuit 2. Electric current when disc in/out Open disc tray: VCC V306CE electrode on LOAD+ Electric machine LOAD- V308CE electrode on R326 Ground When not opening disc tray, pin 51 and 39 of U201 (MT1389) are low level. When opening disc tray, pin 51 of U201 (Mt1389) sends a high level; V308 is on; V308 collector electrode changes into low level; → → → → → → → - 19 - LOAD- changes into low level; V306 base electrode changes into low level; V306 is on. V306 collector electrode changes into high level and LOAD+ changes into high level. Close disc tray: VCC V309CE electrode on LOAD- Electric machine LOAD+ V307CE electrode on R326 Ground when closing disc tray, pin 39 of U201 (Mt1389) sends a high level; V307 is on; collector electrode changes into low level; LOAD+ is low level; base electrode through R324 and V309 is low level; V309 is on; V309 collector electrode changes into high level; LOAD- changes into high level. → → → → → → → 3.2.7 Main axis braking circuit 1. The circuit schematic diagram is shown as the following figure 3.2.7.1: Figure 3.2.6.1 Disc in/out circuit Figure 3.2.7.1 main axis braking circuit disgram R321 1R R320 150K R319 150K R322 680K R317 680K R318 0R C307 2200pF ADI N OP- OP+ V1P4 SP- OPO C308 DNS R340 1R C310 2200pF SP+ - 20 - 2. Working principle: To prolong the service life of electric machine and decrease the influence of start-up concussion current to the machine, when there is disc in, the development personnel design the main axis electric machine in running state always. Even though “STOP” button is pressed, disc will not stop running immediately. Thus when pressing “OPEN” button, a braking signal is required to make the main axis electric machine stop running to fulfill the completion of opening disc tray in a short period. In the course of playback, Press “OPEN" button and main axis drive signal disappears. For the reason of inertia, the main axis electric machine is still in running state, and now the induced voltage achieved by the induced electromotive force which is generated by electric machine's running on sampling resistor R321 and R340 outputs from pin 34 through resistor E319, R320 and pin 36 of MT1389 after being processed inside MT1389 and magnified, then sends to pin 47 of MT1389 through R13; after A/D conversion and the corresponding processing inside MT1389, an instant electric machine reversal braking signal is outputted from pin 37 of MT1389 to make the main axis electric machine decrease speed. When MT1389 detects the disc stops running, disc tray will open to ensure that disc will not run when disc tray opens. 3. Key point voltage (unit: V), shown as the following table: The equivalent circuit is shown as the following figure: R321 1R R320 150K R319 150K R322 680K R317 680K R318 0R C307 2200pF ADI N OP- OP+ V1P4 SP- OPO C308 DNS R340 1R C310 2200pF SP+ DMO 36 35 47 34 37 5 D5954 11 12 MT1389 M A/D Key point Position Normal working voltage (V) Voltage change when door is opened (V) SP+ pin 11 of D5954, pin 5 of XS303 3.79 3.79→0.70→1.80 SP- pin 12 of 5954, pin 6 of XS303 1.38 1.38→3.40→1.80 OP+ pin 36/B of MT1389 1.38 1.38→3.10→1.80 OP- pin 35/A of MT1389 1.53 1.53→3.08→1.98 - 21 - 3.2.8 Mute circuit and power-off quieting circuit 1. The circuit schematic diagram is shown as the following figure 3.2.8.1: Figure 3.2.8.1 Mute and power-0ff quieting circuit R2108 10K +9V R2109 10K R2104 1K VD205 1N4148 VCC R2103 1K AGND VD206 1N4148 -9V MUTE-1 TC235 100uF/10V AGND R2106 10K Q212 2SC1815-YS Q218 1015-S Q219 1015-S VOICE-DET MUTE1 Q211 1015-S R2102 1K R2101 10K VD207 1N4148 VD208 1N4148 VD209 1N4148 MUTE2 MUTE3 TC238 100uF/10V VCC R21070R(DNS) MUTEA R2105 10K A B C D E F G H I J k L M OPO pin 34/C of MT1389 2.44 2.44→0.40→2.50 ADIN pin 47/D of MT1389 2.44 2.41→0.41→2.44 DMSO pin 5 of D5954 1.42 1.42 VIP4 pin 30 of MT1389 1.41 1.41 2. Working principle: under the control of I C to MT1389, CS4360 sends 3 mute control signals, MUTE1, MUTE2, MUTE3 from pin 28, 25 and 18 which is added to mute circuit. The generated mute control signal MUTE-1 is added to the base electrode of each switching tubeQ205 - Q210 of 6-path analog channel to make the switching tube and make audio signal bypass into ground to reach the purpose of mute. The working mechanism is that when no audio signal comes to a certain path, CS4360 changes the mute control signal corresponding with this path to high level. After pressing MUTE button, 3-path mute signals all change to high level. When working normally (playing discs), only one path signal of the 3-path signals, MUTE1, MUTE2 and MUTE3 changes into low level, now Q211 is on. The collector electrode of Q211 is high level; Q212 is also on and its collector electrode is low level; Q218 is cutoff; MUTE-1 is low level and sound outputs normally. When muting, MUTE1, MUTE2 and MUTE3 outputted by CS4360 all change into high level. At this time, for the base electrode of Q211 is high level, Q211 is cutoff and Q212 is also cutoff. The emitter electrode of Q218 changes into high level and also is on. +9V voltage is added to MUTE-1 through Emitter Collector of Q218, the outputted high level is added to the base electrode of switching tube Q205~Q210. The switching tube is on and sound is bypassed to ground. 2 - 22 - KEY POINT A B C D E F G H I J K L M NO MUTE 0. 02 0. 02 0. 02 0. 53 4. 55 5. 2 0. 84 0. 12 - 0. 15 - 4. 27 - 4. 27 5 5 MUTE 5. 02 5. 02 5. 02 5. 18 5. 23 - 3. 86 - 3. 87 1. 67 0. 81 1. 63 - 3. 87 5 5 INSERT MICROPHO NG 0. 02 5. 02 0. 02 0. 53 4. 52 5. 2 0. 64 0. 12 - 0. 15 - 4. 27 - 4. 27 5 5 Power-off quieting: when working normally, because there is no forward bias, Q219 is in cutoff state. When powering off, +9V disappears and the base electrode of Q219 changes into low level. For capacitor TC235 discharge is high level to the emitter electrode, Q219 is on. The discharge of TC235 makes MUTE-1 outputs high level and add to each switching tube through Emitter-Collector of Q219 to make the switching tube on and sound is bypassed to ground to realize the function of power-off quieting. Power-on quieting: when powering on, VCC is connected to power supply, voltage of the two ends of Tc238 cannot change suddenly. The base electrode of Q211 changes into about 5V and then Q211 is cutoff, Q212 is cutoff and MUTE-1 changes into about 1.68 to perform power-on quieting function. The function of -9V voltage in the figure is to ensure the secure cutoff of each switching tube when circuit is working normally. 3. Key point voltage (unit: V), shown as the following table: 3.2.9 Servo circuit 1. DK1005S adopts SANYO 62 decoder and MTK decode solution (MT1389+FLASH (16M)+ SDRAM (64M)). The servo circuit is mainly composed of front signal processing, digital servo processing, signal processing IC T1389 and drive circuit D5954, in which MT1389 is the main component of decode circuit at the same time. 2. The circuit functional block diagram is shown as figure 3.2.9.1. The Explanation to the block diagram:After powering on or disc in, disc identification circuit identifies the disc inserted into loader, and judges whether the disc is CD or DVD to conduct the corresponding control. At the same time, MT1389 adjusts laser output power through laser power control circuit. Pin 20 of MT1389 is VCD laser power strongness/weakness detecting signal input pin, pin 21 is DVD laser power strongness/weakness detecting signal input pin, pin 23 is VCD laser power drive control output pin and pin 22 is DVD laser power drive control output pin. When reading VCD disc, if pin 20 detects laser output power is too strong, output voltage of pin 23 of MT1389 increases and on- state of V302 decreases to make the voltage provided for pick-up decrease and light emission of laser head become strong. - 23 - Figure 3.2.9.1 Servo circuit diagram Loader DVD laser power control VCD laser power control Disc identification circuit Disc in/out electric machine and detecting switch Disc in/out circuit Feed electric machine on loader Main axis braking circuit Main axis electric machine on loader Integration circuit 2 23 20 19 18 17 1 4 3 TROPEN TRCLOSE TRI N TROUT 39 51 48 49 22 20 21 23 7 I OA A、B、C、D、E、F（a、b、c、d） 15 17 17 U602 D5954 14 13 SL+ SL- 12 SP- SP+ 5 1 18 23 26 28 114 MT1389 47 34 35 36 OPO ADI N OP- OP+ 12 Integration circuit Integration circuit Integration circuit After loader reading disc information, A, B, C, D, E, F signals are sent out to Mt1389 (DVD only has A, B, C, D signals), and then inputted from pin 2~11, 18, 19 of MT1389. After being amplified and processed by the pre-amplifier inside MT1389, now signals are separated to two part s for processing inside Mt1389: After being processed by digital servo signal circuit inside MT1389, one part of signal form corresponding servo control signals and output FOO, TRO, DMO, FMO digital servo control signals from pin 42, pin 41, pin 37, pin 38 of Mt1389 respectively, then change into analog servo control signal FOSO, TRSO, DMSO, FMSO through integration circuit composed by resistor capacitor, and send to driver circuit BA5954 for amplification to bring along focus coil, trace coil, main axis electric machine and feed electric machine after drive amplification. Among these, focus and trace servo are used to correct objective position accurately; feed servo is used to bring along laser head to make radial large-scale move which belongs to the preliminary adjustment to pick-up position;and main axis servo is used to control main axis electric machine to make it read signals in means of constant linear velocity and bring along disc to rotate. - 24 - After processing of amplification by VGA voltage control amplifier and equalization frequency compensation inside MT1389, another part of signals are changed into digital signals through internal A/D converter. When loader is reading CD/VCD signals, these signals are conducted EFM demodulation inside MT1389, and then outputted to latter stage for AV decoding after finishing CIRC (Cross Interleaved Reed-Solomon Code) error correction inside. When loader is readingDVD signals, these signals are conducted ESM demodulation inside MT1389, and then sent to latter stage for decoding after finishing RSPC error correction inside. The other part of servo is open/close disc tray circuit. After panel or remote controller emits open/close disc tray signal toMT1389, in usual conditions, TROPEN and TRCLOSE sent out by pin 39, 51 of Mt1389 are both low level, when signal of “open” comes, after Mt1389 makes disc stop rotating through main axis braking circuit, TRCLOSE is set high to make open/close electric machine on loader frame run to bring along dist tray to eject. After disc tray ejecting to proper Signal of opening to proper position (TR_OUT) is set high level (0V) through the detecting switch on loader frame, MT1389 pulls down TRCLOSE and open/close electric machine stop running. When MT1389 receiving “close” signal, TROPEN is set high level by MT1389, open/clode electric machine tuns conversely to bring along disc tray to close. After disc tray closing to proper position, signal of closing to proper position (TR_IN) is set low level through the detecting switch on loader frame, MT1389 pulls down TROPEN and electric machine stops running to finish “close” process. 3. Explanation to servo terms FOO: when rotating, disc may probably move upwards or downwards slightly to make the focus of laser emitted by pick-up cannot justly fall on data pit of disc, so pick-up is required to move upwards or downwards to make focus aim at data pit justly. When pick-up is moving upwards or downwards, it means that pick-up is making focus acts. TRO: data information is save in disc in form of tracks. The process when pick-up moves from one track to another one to read data is trace. In this process, it is objective, but the entire pick-up, that moves forwards or backwards, and the moving range is very small. FMO: similar to acts of trace, the acts of feed are larger than those of trace. Feed conducts a large scale movement firstly, and then trace moves slightly in this range. Feed moves for a while, and does not move for another while; but trace moves all the time. Feed is rough adjustment and trace is fine. DMO: it is the top that holds up disc. Its rotation speed decides that of disc. Its rotation is generated by an individual DC electric machine, in which rotation speed of DVD is twice over that of CD. Hint: In order to observe these processes, you may take down upper cover of the machine, and then the loader cover board. When power on with no disc in or disc in after disc out, you may observe that pick-up returns to inner ring firstly and then springs back for a little distance, which is feed process. Then pick-up will emit light and you may notice the objective moves upwards and downwards, which is focus process. In face, in the same time of focus, the objective also moves upwards and backwards to - 25 - SDRAM SDCLK SDCKE DCS DRAS SWE DQM0 DQM1 DQ0~DQ15 MA0~MA11 URST PWR PRD PCE A0~A20 AD0~AD7 MT 1389 FLASH SDA SCL V18 Make trace acts. Because the range is small, it is not easy to observe, and meanwhile DEMO disc tray also rotates slightly, which is DEMO acts. 3.2.10 Decode circuit 1. Decode circuit block diagram is shown in the following figure 3.2.10.1: 2. Working principle: this decode circuit is mainly composed of Mt1389, SDRAM and FLASH. The important conditions for decode circuit working: (1) Reset: refer to reset circuit working principle for details. (2) Clock: this system adopts 27M external clock input and produces the clock signal required inside system through internal frequency doubling circuit. (3) Power: decode chip adopts two groups of power supply: 3.3V and 1.8V, in which 1.8V is provided for internal logic control circuit, so we call care voltage. After power on, reset circuit performs reset to CPU (8032) and FLASH inside Mt1389, decode chip outputs reset signal at the same time to perform reset to other circuit. After system reset, read signal is sent out to FLASH to read the information saved in FLASH and machine displays power on picture. Servo system begins to work to check whether machine closes to proper position and whether switch is turned off, if not, close action is performed. After door detect switch is turned off, the machine begins to carry out the preparation work for reading disc and panel display at the same time. Playback process: laser head picks up disc signal from disc, after being processed by servo system, and sends it to decode circuit for decoding, and signal after being decoded is saved in SDRAM 24C02 Reset circuit U206 27M Figure 3.2.10.1 Decode circuit block diagram EEPROM Clock 1.8V voltage regulating - 26 - Figure 3.2.11.1 Functional block diagram of video Component video SCART terminal S- VI DEO V- OUT 203 194 196 198 200 202 MT1389 Pr Pb Y1 V- OUT C Y Temporarily; when machine needs to replay signal, decode circuit calls the information inside SDRAM for output. Save user's information: information set by user is saved inside EEPROM, if users do not renew ot reset this information, it will be saved inside IC forever. Audio, video output circuit: at present, MT1389 integrates to video D/A converter, MT1389E integrates audio D/A converter inside, and manufactures may select according to their own needs, so when decode audio outputs, part of analog output is digital output. Please refer to circuit diagram and audio circuit introduction for details. 1. The circuit functional block diagram is shown as the figure 3.2.11.1: 3.2.11 Video circuit Brightness signal, colour difference signal, CVBS signal and component video signal after being decoded by U201 (MT1389) are sent out to the corresponding terminal for output after lowpass filtering and clipping. Take C signal as an instance, the following figure 3.2.11.2 shows the working principle of filtering limiter circuit. Figure 3.2.11.2 C signal circuit diagram R261 75R C290 47pF C289 47pF VGND L243 1.8UH Y2 VCC VIDEO_C VGND VD210 1N4148 VD211 1N4148 - 27 - 2. Working principle: R261 is a matched resistor, which makes the signal achieve the maximum power on load. Capacitor C289, C290 and inductor L243,compose a lowpass filter which filters the high frequency interference signals beside useful ones; diode Vd210 and Vd211 compose a limiter circuit. It is known from features of diode that the maximum amplitude of colour difference signal C cannot exceed 5.7V and the minimum one cannot be under -0.7V, thus the high voltage signal from TV set can be avoided burning down the player. Please refer to video signal flow diagram for details. 3. Key point voltage (unit: V) is shown as the following table: Note: In "No disc" column, "/" symbol refers to the data when blue screen is changing into black screen. The above measurement are all those when connecting with load. 1. The function of connect signal between MT1389 and Cs4360 is shown as the following 3.2.12 Audio circuit Signal Function Trouble No disc In playing Y S-VIDEO brightness S-video has no picture/picture bright/picture dark 0.74/0.65 1.44 C S-VIDEO chroma S-video has no clolr/color distortion 1.48 1.48 VIDEO Compound signal of component video Composite video has no picture/picture bright/picture dark 0.64 0.66 Y1 Brightness signal of component video Component video has no picture/picture bright/picture dark 0.78/0.67 0.56 Pb 1.76/1.46 0.71 Pr 1.5 0.77 Chroma signal of component video Component video color distortion 213 6 ALRCK MT1389 CS4360 Figure 3.2.12.1 Diagram about the connection between MT1389 and Cs4360 ABCK ACLK ASDATA0 ASDATA1 ASDATA2 5 7 2 3 4 214 215 217 218 219 2. Explanation to signal function is shown as the following table: Signal Name Relevant function Signal Name Relevant function ALRCK Left/right bit clock signal Use to separate left and right channels ASDATA0 Digital audio signal includes left/right channel signal ABCK Bit clock signal Use to ensure the accuracy of signal transmission ASDATA1 Digital audio signal includes surround left/right channel signal ACLK External clock signal working clock of CS4360 ASDATA2 Digital audio signal includes centre/subwoofer channel signal - 28 - 3. Functional block diagram of audio circuit is shown as the figure 3.2.12.2. Figure 3.2.12.2 Functional block diagram for audio circuit SDATA2 SBCLK SLRCK SACLK U207 CS4360 Operation al amplifier U219 U220 U221 4 5 6 7 L R SL C SR SDATA0 SDATA1 2 3 RST 10 SW Mute circuit MUTE1 MUTE2 MUTE3 28 25 18 AUDIO_SW AUDIO_C AUDIO_SR AUDIO_SL AUDIO_R AUDIO_L SDA SCL 11 12 、 Head phone D/A TO AV BOARD U214 ASPDIF SPDIF 152 151 153 158 AMDATA 4 2 7 8 A/D Cs5340 12 10 OK Q OK L 158 222 217 218 219 213 214 215 225 Mt1389 TDA1308 19 20 23 24 26 27 4. Working principle: digital audio signals SDATA0, ASDATA1 and ASDATA2 after being decoded by U201 (MT1389) are outputted to pin 2, 3 and 4 of U207 (CS4360) from pin 217, 218 and 219 of U201 (MT1389) respectively, among which the function of 33ohm resistor is to prevent electromagnetic interference. The above three-path digital signals, through CS4360 D/A conversion, output left/right channel analog audio signal from pin 27 and 26; output left/right channel mute control signal MUTE1 from pin 28; output surround left/right channel analog audio signal from pin 24 and 23; output surround left/right channel mute control signal MUTE2 from pi output centre subwoofer analog audio signal from pin 20 and 19 and output centre subwoofer mute control signal MUTE3 from pin 28. When a certain path signal has input, the corresponding analog signal of this path has output, and the corresponding MUTE signal is low level, or else it is high level. He used three-path clock signals of U207 (CS4360) are the same with those of U210 (CS5340). U210 (CS5340) is to converse the analog OKA into digital signal and then output from pin 4 of U210 (CS5340), then into pin 224 of MT1389 and form echo with OKA signal which is connected to the operational amplifier after being processed inside U201 (Mt1389). n2; - 29 - 3.2.13 Power circuit 1. The circuit functional block diagram is shown as the figure 3.2.13.1: ～220V Bridge rectification and filter circuit 310V DC Start circuit Absorption loop Switch module FSDH321 Rectification diode Filtering Feedback loop Filter capacitor Rectification diode A SA+5V +9V +5V -9V Figure 3.2.13.1 Power circuit flow chart 2. Working principle A: The working range of this switch power is AC 110V~250V. The voltage value here is 1.414 times of effective AC value. (1) Electromagnetic interference filter circuit: for various electromagnetic radiation exits in surroundings, the inputted current will be disturbed. The function of electromagnetic filter circuit is to remove these interferences by filtration to make those which enter the bridge rectification circuit are relatively pure 220V AC. (2) Bridge rectification and filter circuit: the function of this circuit is to generate a DC about 310V to provide usage for future. (3) Start circuit: when power-on just starts, transformer has not started working, and now the start circuit provides a power supply voltage for FSDH321 to make it work. (4) Absorption loop: The waveform of pin 2 of switch module FSDH321 sometimes is high level, and sometimes is ow level, so a strong self-induction voltage will generate in primary coil of transformer and FSDH321 may probably be caused damage. The function of absorption loop is to form a loop for this self-induction to ensure the normal working of circuit. (5) Rectification diode: The voltage which is just outputted from transformer is pulsating DC. The function of rectification diode is to change pulsating DC into DC together with the later filter circuit. (6) Feedback loop: The length of time of “on’ and “off” within the same cycle inside switch module FSDH321 is decided by the feedback loop. Feedback loop samples the +3.3V output port voltage. When the output port voltage is too high, the sampled voltage is on the high side. Through feedback loop, it changes the ratio of occupying space of pin 2 of FSDH321 to decrease the time of on-state. The coupling quantity of transformer decreases and outputted voltage starts decreasing. When the outputted +3.3V FL+ FL- -21V Q501 Zd502 Filter capacitor Rectification diode Filter capacitor Rectification diode Filter capacitor Rectification diode Filter capacitor Rectification diode - 30 - Voltage is too low, the sampled voltage is on the low side. Through feedback loop, it makes the ratio of Occupying space of FSDH321 increase. The coupling quantity of transformer increases and outputted voltage starts increasing. Through the function of feedback loop, it makes power board output relatively stable voltage. LM431 used in this power supply is a 2.5V comparison device, which is compared with sampling voltage. When sampling voltage is more than 2.5V (means output voltage is on high side), LM431 is on, and light emitting diode in photoelectric coupler starts emitting light to make the other side of photoelectric coupler starts being on. The light emission of light emitting diode is stronger, the on- state degree is larger. The on time of switch module FSDH321 decreases, the coupling quantity of transformer decreases and the outputted voltage starts decreasing. When sampling voltage is less than 2.5V (means output voltage is on low side), LM431 is cutoff. The on time of FSDH321 decreases, the coupling quantity of transformer decreases and output voltage starts increasing. Through auto control function of feedback loop, it makes power board output relatively stable voltage. (7) Filter circuit: its function is to generate a stable and small-curve DC voltage. “ " shaped filter is usually adopted in filter circuit. The feature of capacitor filtering is that load resistance is high. When current is small, the function of filtering is obvious. But the feature of inductor filtering is that load resistance is small. When current is large, the function of filtering is obvious. If the capacitor is constructed to “ " shaped filter, it can perform better filtering effect. 1. MIC circuit block diagram is shown in the following figure 3.2.14.1: ∏ ∏ 3.2.14 MIC circuit Figure 3.2.14.1 MIC circuit block diagram U401 amplifying MIC U401 amplifying TO MPEG XS601 Voltage regulating circuit +5V TO U603 OK -9V +9V DET 2. Working principle: MIC part: when microphone is inserted into MIC left, DET signal changes from low level to high level, which makes mute circuit of decode part off, no matter disc reading is available, audio signal may output. If this signal has trouble, MIC will have no sound when playback stops. After being filtered, signals inputted in MIC transmit to pin 5 of U601, and signals after discharge output from pin 7 of U601, after being amplified for the second time, they are outputted from pin 1 of U601 to decode board directly for Karaoke signal processing and output overlapped with audio signal to realize Karaoke function. - 31 - 3.2.15 Headphone circuit 1. Headphone circuit block diagram is shown in the following figure 3.2.15.1: XS603 H-R H-L U603 TDA1308 headphone amplifying R L JK601 Headphone socket 2. Working principle: H_L/H_R signal of audio output end transmits to headphone amplifying circuit of MIC board through XS603 and headphone amplifying circuit is mainly composed of U603 (TDA1308). Function of main pins of TDA1308: pin 1, 7 is output pin; pin 6, 2 is input pin. After being amplified, audio signals output to headphone socket (JK601) directly. 9973-2 Subsidiary panel Indicator light control circuit LED2 3.2.16 panel control circuit 1. The circuit functional block diagram is shown as the following figure 3.2.16.1: 2. Working principle: control panel components are composed of VFD screen, drive IC U401 (UPD6312), remote control receiver HS0038A2, buttons and indicator light. U401 (UPD6312) processes the data sent by decode board, and drive display screen displays the corresponding state information; meanwhile,scans panel buttons matrix and sends to U201 (MT1389) after processing buttons information to realize the control to the player by users.Pin 3 of remote control receiver sends the remote control information to U201 (MT1389) to realize remote control function. It has three pin in all, in which pin 1 grounding, pin 2 provides 3.3V voltage and pin 3 IR outputs to decode board. Figure 3.2.16.1 Panel control circuit diagram IR HS0038A2 U403 Remote control receiver R415 VCC 111 U201 MT1389 101 99 100 VFDST VFDCK VFDAT 3 2 9 6\5 U401 UPD16312 VFD401 10 11 12 13 8 KEY 15 16 Figure Headphone circuit block diagram 3.2.15.1 - 32 - 3.2.17 AV output circuit 1. Shown in the figure 3.2.17.1, this board 7969-5 is mainly composed of output terminal, SCART output switch circuit and filtering circuit. Main functions: output audio and video signals. Video part includes S-video, component video, composite video output. Audio part includes left/right channel, surround left/right, centre, subwoofer and coaxial cable output. SCART terminal integrates cideo and audio output in one. （ ） RGB_CVBS AV_TV Mode switch SCART Component video output terminal Optical, coaxial terminal XS701 Audio output terminal SL SR CC LFE PDAT2 PDAT1 +10V R# L# VIDEO# Y1 Pb Pr SPDIF Figure 3.2.17.1 AV output board circuit block diagram 2. SCART terminal SCART terminal is the one that integrates video and audio transmission together, which can transmit video and audio signal, and also the operation is very convenient. There are 21 holes in all locating in the centralpart at the rear side of the player. (1) Explanation to SCART terminal pin function is shown as the following table: Pin Name Signal direction Function description Pin Name Signal direction Function description 1 A(B)OUT I Audio right channel input 12 NC Network communication data line 2 2 A(B)IN O Audio right channel output 13 RETURN Pr signal ground 3 A(A)OUT I Audio left channel input 14 RETURN Blanking signal ground 4 A-COM Audio signal ground 15 RED I/O I/O Pr signalI/O port 5 RETURN Pb signal ground 16 BLK I/O I/O Blanking signal I/O port ★ 6 A(A)IN O Audio left channel output 17 RETURN Blanking signal ground 7 BLUE I/O I/O Pb signalI/O port 18 TRTURN Composite video signal ground - 33 - 8 FUNCSW I Function selection jack 19 V-OUT I Composite video signal input 9 RETURN Y1 signal ground 20 V-IN O Composite video signal output 10 CONT I/O Network communication data line 2 21 GND Common 11 GREEN I/O I/O Y1 signal I/O port (3) SCART terminal function selection is shown as the following table: Note: PDAT0 and PDAT2 are used to control input voltage of pin 8 of SCART terminal; PDAT1 is used to control voltage change of pin 16 of SCART terminal and the voltage on pin 16 controls SCART terminal to select RGB mode or CVBS mode. PDATO PDAT1 PDAT2 Pin 8 of SCART terminal Function 0 × 0 10V AV4:3 0 × 1 7.5V AV16:9 1 × 0 0.90V TV 1 × 1 0.85V TV × 0 × × CVBS MODE × 1 × × RGB MODE - 34 - Section Three Servicing Cases 3.3.1 Servicing cases 【 】 Example 1 Symptom: power on automatically Description: after connecting to power, do not press POWER button, power indicator light is on and machine starts up at the same time. Analysis and troubleshooting: use multimeter to test each channel voltage output of power board and find that there is no CPU3.3V, other channels are normal; check elements in this channel and they are all normal; test pin 9 of transformer and find that there is no voltage output; after checking, open circuit happens between pin 9 and 13 of transformer; after changing transformer, trouble is removed. Step 1: check all voltage of X203, and they are all normal. Step 2: check output voltage of U209 (1.8V voltage regulator) and it is 1.9V, which is normal; check pin 37 of U214 (flash) and it is 3.23V, pin 1 of U211 (SDRAM) is 3.19V, pin 14 of U205 (HCU204); pin 8 of U202 (24LLC02) and it is 3.21V, which is normal. 【 】 【 】 【 】 Example 2 Symptom: loader is loud Analysis and troubleshooting: after closing to proper position, loader gives a click sound; check loader and find that after laser head reset is ok, it does not retract quickly, but in reset all the time; push laser head close to main axis electric machine, use multimeter to test pin 3 (LIMIT) of Xs306 and it has open circuit to ground; check feed switch and find that this switch has lost effect; after changing switch, machine is OK. Example 3 Symptom: door not open Description: light emission, main axis and feed are all normal; press OPEN button but not any acts happens. Analysis and troubleshooting: use multimeter to test the voltage output of pin 3 of the 5P flat cable XS306 from frame to decode board (open to proper position test) and it is +1.6V, which should be +3.3V; test the resistor from pin 3 to 1389 and it is 330 ohm without trouble, so we doubt that 1389 has trouble; after changing 1389, machine is ok. Example 4 Symptom: no picture, no sound and no screen display - 35 - Step 3: use oscillograph to test frequency of crystal oscillator X201 and find that there is no waveform; check start-up capacitor C275 and C276 and find that resistance of two ends of C275 is 100 ohm, so this capacitor has electric leakage; after changing it, the machine is ok. Example Symptom: component vide has no output Example Symptom: color distortion of component video Example Symptom: component video has no output 【 】 【 】 【 】 5 Step 1: after checking, we find that composite video is normal, so we can preliminarily determine that component video output part has trouble. Step 2: use oscillograph to test 3 component video output pins of pin 200 (Y4) of U201 (Mt1389), pin 202 (Y5) and pin 203 (Y6, and we find 3 have waveform output, so we may judge that trouble does not lie in Mt1389, but in output circuit. Step 3: in the 3 component video, only when brightness signal has trouble, there is no output, so we directly check the path of brightness signal. Check brightness signal Video-Y4 of pin 11 of flat cable holder XS204 and find that there is no waveform output, so we can judge that trouble lies in decode board. Step 4: check anode of catching diode V216, shown in the figure 3.6.1, and there is still no waveform, so we can confirm that trouble lies in filtering circuit n=matching resistor. R273 is matching resistor, Vd216 and Vd217 are catching diode, and L246, 213, C298, C299 comprise filtering circuit. Step 5: use multimeter to test above circuit elements and no problems are found, but in the above circuit, point A has no waveform; carefully observe L246 and it has rosin joint; after well welding it, component video output resumes normal. 6 Step 1: use oscillograph to check YpbPr terminal and find that Pb terminal has no signal output. Step 2: use oscillograph to check Y5 signal (pin 202 of 1389 or high level end of R276), and no abnormality is found. Step 3: use oscillograph to check VIDEO-U signal (Vd218 anode) and VIDEO-U and they are normal. Step 4: use oscillograph to check two ends of L247, L214 and find that L247 has open circuit; after changing L247, machine is normal. 7 After checking, composite video output is normal, when using oscillograph to test pin 200, 202 and 203 of MT1389, they all have no output; composite video is normal, so we preliminarily judge that trouble does not lie in clock circuit and power supply circuit; change MT1389 directly and component video output resumes normal. - 36 - 【 】 土 【 】 【 】 【 】 Example 8 Symptom: there is picture but no sound Step 1: all channels have no sound, so trouble is certain to lie in the common part of these channels. Common part of these channels: 1. Power supply voltage of 4558. 2. MUTE-1 signal in mute. 3. CS4360 has trouble. 4. MT1389 has trouble. Step 2: check power supply voltage ( 9V) of 4558 from simple steps and it is normal. Step 3: use multimeter to test C electrode of voltage Q218 of MUTE-1 signal and it is high level (1.68V), so trouble may probably lie in mute circuit. Step 4: in mute circuit, to make MUTE-1 be 1.68V, Q212 is sure to be cutoff. To make Q212 cut off, cathode of VD207, VD208, VD209 must be high level; but when using multimeter to test cathode of VD207, it is low level, Q212 should be on in normal conditions; so we decide that Q212 may probably have trouble. Step 5: change Q212 and trouble is removed. Example 9 Symptom: mixed right channel has no sound. Step 1: use oscillograph to check R terminal and confirm that there is no output. Step 2: use oscillograph to check pin 26 FR signal of U207 (CS4360) and output is normal. Step 3: check waveform of RT signal (pin 19 of XS204 or C electrode of Q205C) and it is normal. Step 4: check waveform of pin 1 of U219 (4580) and the output is normal. Step 5: use multimeter to check C electrode resistance to ground of Q205 and it is zero, so we doubt Q205 has trouble; after changing Q205, machine is normal. Example 10 Symptom: power not on after switching on machine Step 1: check voltage of pin 7 (5V), pin 9 (3.3V) and pin 11 (5V) of Xs203 and it is normal, so ie is estimated that trouble lies in decode board. Step 2: check voltage of pin 2 of U209 and it is 0V (which should be 1.9V in normal condition). Step 3: check R242 and R243 resistance and it is normal, so we estimate that U209 is damaged. Step 4: after changing U209, machine is normal. Example 11 Symptom: there is picture but no sound Step 1: each channel has no sound, so trouble lies in the common part of each channel. Step 2: check mute signal MUTE-1 (one end of R2118) and it is -0.98V, which is normal. Step 3: check power supply of U207 (CS4360) and it is normal. Step 4: use oscillograph to test pin 26, 27 of U207 (Cs4360) and find that there is no waveform output; use oscillograph to test pin 2 of U207 (Cs4360) and there is waveform input, so we preliminarily judge that U207 has trouble. Step 5: after changing U207 (Cs4360), trouble is removed. - 37 - 【 】 【 】 Example 12 Symptom: not read disc Step 1: check the nerve flat cable socket on Xs301 and no abnormality is found. Step 2: change loader, disc reading is normal and trouble is removed. Example 13 Symptom: not read disc Step 1: check Xs301 flat cable and socket and there is no abnormality. Step 2: change loader but trouble still exists. Step 3: check power supply, observe laser head main axis and feed and they are normal, but no focus. Step 4: check D5954 power supply and reference voltage and they are both normal. Step 5: check MT1389 power supply with reference to “MT1389 power supply troubleshooting”. Step 6: check the path between pin 42 (focus error signal output) of MT1389 and pin 1 of D5954, after changing C213, trouble is removed, so it shows that C213 has electric leakage. 【 】 】 】 Example 14 Symptom: not read disc Step 1: check flat cable and socket on XS301 and there is no abnormality; change loader and trouble still exists. Step 2: when no disc in, after closing door, we find that when lease head is making focus and trace acts, the emitted DVD light is not strong enough, so we preliminarily judge that laser power control circuit has trouble. Step 3: when using multimeter to test V301 and V302, we find that V301 is stricken through; after changing V301, trouble is removed. Example 15 Symptom: machine down in the course of playing According to former experience, this type of trouble may probably occur in MT1389, so change MT1389 directly and trouble is removed. Conclusion: for this type of trouble, firstly change Mt1389, if trouble cannot be removed, change U211 (SDRAM), if it cannot be removed again, change U214 (FLASH). Example 16 Symptom: power not on Step 1: check voltage on XS203 flat cable holder and all are normal; check power voltage on U201 (MT1389), U211 (SDRAM), U214 (Flash), U202 (24LLC02) and it is also normal. Step 2: check reset circuit, and reset by force, and power is still not on; check clock circuit and clock frequency is normal. Step 3: change U217 (flash) and trouble is removed. Conclusion: when power supply, reset and clock are all normal, for this type of trouble, firstly change U214 (flash), and then U201 (MT1389) or U211 (SDRAM). 【 【 - 38 - Power not on Y N Y Y N Y Y N N OK Y Y N N OK Y Y N Y N N Check whether voltage of pin 7 (5V), pin 4 (9V) and pin 9 (3.3V) of Xs203 is normal Y Whether output of each path is abnormal Whether power supply pin is short-circuited to ground Refer to troubleshooting process for "power board" for details of power board trouble Change the corresponding resistor Check whether resistance of R242 and R243 are normal Check whether pin 2 of U209 has 1.8V voltage Change the corresponding element 1. Check whether pin 37 of U214 (FLASH) has 3.3V. 2. Whether pin 1 of U211 (SDRAM) has 3.3V. 3. Whether pin 14 of U205 (HCU04) has 3.3V. 4. Whether pin 8 of U202 (24LLC02) has 3.3V. N Check whether pin 2 of U209 is short circuit over the ground or resistance gets smaller Change U209 (LM1117MP-1.8) Change U201 (MT1389) Change U209 and check whether it is OK Whether 1.C237 , TC209.2.C2167\ C254\C2174\C256C25 7\C258 has electric leakage or short circuit Change U205 Check whether pin 6 of U205 (HCU04) has 3.3V Check whether pin 5 of U205 (HCU04) is low level 1. Change Q204 and check whether it is OK 2. Change VD201 and check whether it is OK Refer to troubleshooting process of reset circuit N N Y Y N Y Whether two ends of X201 are 27MH frequency when tested by oscillograph Check whether capacitor C275\C276 has electric leakage and short circuit Change crystal oscillator X201 and check whether it is OK 1. Change U205 and check whether it is OK 2. Check relevant element of reset circuit Change the corresponding capacitor OK N Power board troubleshooting Check whether power supply loop short circuit over the ground or electrical leakage of filter capacitor appears on decode board Y Check whether inductor on 3.3V power supply circuit 3.3.2 Troubleshooting flow chart 1. Troubleshooting process for “Power not on” is shown in the following figure 3.3.2.1: A - 39 - Program is missing OK Y N Y OK N Y Refer to troubleshooting process of reset circuit Whether decode chip is normal Change decode chip Whether SDRAM working is normal Change SDRAM OK N N Y Y N Y N Y Whether the power is on after restoration by force (note 1) Whether SDRAM CLOCK is normal Whether firmware upgrading is ok Change U201 (MT1389) and check whether it is OK Change U211 (SDRAM) Note 1: use a lead to make any end of R256 ground for a second A Figure 3.3.2.1 Troubleshooting flow chart for “Power not on” - 40 - 2. Troubleshooting process for “Picture has distortion” is shown in the following figure 3.3.2.2: Check whether clock signal is normal Restore to default settings Note ① Image distortion Composite video signal distortion Component video distortion All kinds of video output distortion Check whether catching diode VD214 is normal Check whether one path has output in the three paths Check whether matching resistor R270 and C295, C296, L245 in filter circuit are normal Check catching diode on each component Change MT1389 Check whether power supply of Mt1389 is OK Change MT1389 Change MT1389 Change MT1389 Note: Flow chart of restoring to default settings is shown as figure 3.3.2.3: ① Disc tray open Press SETUP button on remote controller RESET TO Default Press SELECT button twice Figure 3.3.2.3 Operation flow chart for restoring to default settings Figure 3.3.2.2 Troubleshooting flow chart for “Picture has distortion” - 41 - Having picture but no sound Check power supply circuit Check power supply circuit Check MRTE-1 signal of mute circuit Change CS4360 Change U201 (1389) N N N Y Y Y Y Check whether power supply I of 4558 and U207 (CS4360) is normal Check whether pin 26 of CS4360 has waveform output Check whether pin 2 of U207 (CS4360) has waveform input Check whether power supply of MT1389 is normal N 3. Troubleshooting flow chart for “Having picture but on sound” is shown as the figure 3.3.2.4: Figure 3.3.2.4 Troubleshooting flow chart for "Having sound but no sound" - 42 - 4. Troubleshooting process is shown as the following figure 3.3.2.5: Figure Troubleshooting flow chart when opening/closing disc tray 3.3.2.5 Vibration occurs when disc in/out Check whether TC308 and TC309 are normal Check whether socket on frame and XS302 has been oxidated Whether detector switch on frame is normal Check whether the resistor and capacitor related to disc open/ close is rosin joint and joint welding Change frame Open disc tray automatically Close disc tray automatically Change frame Check whether V306 V307 V308 V309 V310 are normal Check whether frame is normal Change frame Well insert flat cable Change socket or use alcohol to clean Change the corresponding triode N Disc tray not close Disc tray not open Open/close disc tray automatically Check whether flat cable is inserted fully N Y N Y N Y N Y Opening disc tray not fully Noise occurs in disc tray door Change abnormal capacitor Trouble when opening/ closing disc tray Y - 43 - N No output for composite video signal Whether it is normal after restoring into default settings OK Change U201 (MT1389) Whether Y3 has video waveform output Whether VIDEO_ COMP has waveform Check filter circuit Whether U201 (MT1389) power supply and crystal oscillator circuit is normal Check whether matching filter circuit has capacitance electric leakage or inductor circuit opening Check XS204, XS701 flat cable and socket 1. Check power supply circuit 2. Check clock signal check and correct flow Y Y Y Y N Y N N 5. Troubleshooting process for “No output for composite video” is shown as the following figure 3.3.2.6: Figure 3.3.2.6 Flow chart of “No output for composite video” - 44 - 6. Troubleshooting process for “On-screen-mosaic when playing” is shown as the following figure 3.3.2.7: On-screen-mosaic when playing Check whether power supply and clock signal of U201 (MT1389) is normal Change U201 (MT1389) Ok？ Finish Refer to troubleshooting process of U201 (MT1389) power supply and clock circuit Change U211 (SDRAM) OK Change U214 (FLASH) N Y Y N Y Y N Figure 3.3.2.7 Flow chart of “On-screen-mosaic when playing” - 45 - 7. Troubleshooting process for "No colour of picture" is shown as the following figure 3.3.2.8: No colour of picture Check whether clock signal is normal Check whether U201 (MT1389) is normal ChangeMT1389 OK Check clock circuit Check clock circuit Check other circuit N Y Y N Y N Y Figure 3.3.2.8 Flow chart of “No colour of picture” - 46 - Y N N Y N Y N Y N Y N Y 5.1CH has no sound output Whether machine mutes Cancel mute Whether 1389 power supply is normal Check power supply circuit Whether signal outputted by decode chip is normal Whether machine setup is normal Resume setup Check power supply loop Whether +9 -9V +5 power supply is normal Change decode chip Check whether CS4360 output is normal Change CS4360 Check mute circuit 8. Troubleshooting process for “5.1CH has no sound output” is shown in the following figure 3.3.2.9: Figure 3.3.2.9 Troubleshooting flow chart for “5.1CH has no sound output” - 47 - Y N Y N Y N Y N Y N Left channel has no output Check whether pin 27 of CS4360 has signal output CS4360 has trouble Check whether pin 6 of U219 has signal output Check C2115 C2119 TC225 R2134 R2135 R2148 Check whether pin 7 of U219 has signal output Change U219 Check whether C electrode of Q205 has signal output Check Q205 TC241 Check whether XS204 and flat cable is normal Change Check socket and terminal of AV board 9. Troubleshooting process for “Left channel has no output” is shown in the following figure 3.3.2.10: Figure 3.3.2.10 Troubleshooting flow chart for “Left channel has no output” - 48 - OK N Y N N N Change D513 whether it is normal Change U502(PC817) whether it is normal Change U503 (LM431) whether it is normal Check whether C510, TC514 and TC510 are electrical leakage or short circuit Y Y Y Figure 3.3.2.11 Troubleshooting flow chart for “Voltage is on high or low side” Check the corresponding element of feedback loop N OK Y Check whether filter capacitor is electric leakage or short circuit Check whether rectification diode of this circuit is normal Only one channel is on high or low side Voltage is on high or low side Y Change the corresponding element Check whether R506, C515, R509 and R508 are normal On high or low side when multi-channel output N OK OK OK 10. Troubleshooting process when voltage is on high or low side, shown as the following figure 3.3.2.11: - 49 - 1. Check whether earth capacitor, such as C506 is electrical leakage or short circuit 2. Change FSDH321 3. Check feedback loop Y N OK Y N Y OK N Y OK N Y OK N Y N OK Y OK N Y Change Tc514, C510 and check whether it is normal Change D513 and check whether it is normal 1. Check rectification diode on bridge circuit 2. Check other circuits Change D506, TC502 and C504 and check whether it is normal Change U501 Whether it is normal after changing TC501 Insert decode board and check whether 310V voltage exists on TC501 Change filter capacitor of this channel Change this channel rectification diode and check whether it is normal Several channels’ output power of power supply are not enough Only one channel’s output power of power supply is not enough Output power of power supply is not enough 11. Troubleshooting process for “Output power of power supply is not enough” is shown as the following figure 3.3.2.12: Figure 3.3.2.12 Troubleshooting flow chart for “Output power of power supply is not enough” - 50 - Y Y Y Y N N N N Y No function for buttons Check whether voltage of VCC is about 5V 检查 到解码芯片 的信号是否正常 U401 Check whether D401 D402 has been burnt out Whether it has restored to be normal after changing D401 D402 OK Check power supply voltage of panel Change U401 (UPD6312) and check whether is has been restored Check other circuit of decode board OK N Figure 3.3.2.13 Troubleshooting flow chart for “No function for buttons” 12. Troubleshooting process for "No function for buttons" is shown as the figure 3.3.2.13: - 51 - 13. Troubleshooting process for "No function for remote control” is shown as the figure 3.3.2.14: Y Y N N N Y OK Y N No function for remote control Whether voltage of VCC is about 5V Whether voltage of U403_2 is about 5V Whether it has restored to be normal after changing receiver Check power supply voltage of panel Check receiver power supply loop (R415, C405, Tc407 Check whether remote control is normal Check whether remote control is normal Repair remote control Figure 3.3.2.14 Troubleshooting flow chart for “No function for remote control” - 52 - 14. Troubleshooting process for “No screen display” is shown as the figure 3.3.2.15: Y Y N N No screen display Whether voltage of point B is about 5V Change VFD screen Check power supply voltage of panel Change U401 (UPD16312) Figure 3.3.2.15 Troubleshooting flow chart for “No screen display” Check whether signals to decode board are normal - 53 - No disc Whether pick-up feed is normal (whether pick-up moves forwards and backwards after power on) Use digital oscillograph to test R209 and check whether the end close to MT1389 has waveform Check whether C211 has electric leakage or short circuit Change MT1389 Whether pick-up focus is normal (objective will move up and down after power on) Use oscillograph to test R211 and check whether the end close to MT1389 has waveform Check whether C213 has electric leakage or short circuit over the ground Change MT1389 Check whether feed signal channel between MT1389 and D5954 is normal Change the corresponding element Check whether the focus signal channel between MT1389 and U302(D5954) is normal Change U302 (D5954)and check whether it is normal OK Change U302 (D5954) and check whether it is normal OK Change the corresponding element ① ② Change Mt1389 Check other circuit Whether pick-up has laser emission Check whether laser power control circuit is normal Change the corresponding element 1. Change MT1389 2. Check other peripheral circuit Y Y N N N Y Y Y N Y Y Y N N Y N N N N N Note ① Note ② ① ② Change MT1389 Check other circuit N Observe when disc is not in Y B Change flat cable Whether main axis revolves Check whether the end close to MT1389 of R210 has trace signal, and check waveform Check whether the line from MT1389 to loader is normal Check whether C212 has electric leakage or short circuit 1. Change MT1389 2. Check other circuit Remove one by one Y N N N Y Check whether the end close to MT1389 of R208 has pulse Change whether C210 has electric leakage or short circuit Change MT1389 Check whether main axis braking circuit is normal Check whether the main control channel between MT1389 and U302 is normal Change U302 (D5954) and check whether it is OK 1. Change MT1389 2. Check other circuit Y Y Y N Y N N N Whether disc rotation speed is normal after disc is being loaded Whether loader laser head is normal Change loader Change decode chip or loader Y Y N N Y B No voltage output No voltage output for eacj channel Only one channel has no voltage output Find out which channel has no voltage output 1. Check whether filter inductor has open circuit 2. Change voltage regulator if there is voltage regulator tube, and check whether it is normal Check whether filter capacitor has electrical leakage In which how many channel/channels has/have no voltage output Check whether C510, TC510 and Tc514 are short circuit or electrical leakage OK Change the corresponding element 1. Check fuse 2. Check bridge circuit rectification diode 3. Check element on electromagnetic interference filter circuit Note ① Y Check whether cathode board of D513 has 3.3V Change D513 and check whether it is normal N Check whether R508, R509, C515 and R506 are normal Y Y N Change U503 (LM431) and check whether it is normal Change U502 (Ph817) and check whether it is normal Check other relative elements of feedback loop N N OK Y OK Y Check whether cathode of rectification diode has voltage Whether it is normal after changing rectification diode N N OK Y Y Y Check whether 310V voltage exits on TC501 Y Note ② Y Change the corresponding element Check whether R505, C504, D506, are short circuit or electrical leakage Change U501 (FSDH321) and check whether it is normal Change U502 (Ph817) and check whether it is normal Change U503 (LM431) and check whether it is normal Change transformer N N N N OK Y OK Y OK Y Y N 2. RFO signal waveform diagram of pin 8 of Xs301 This section collects signal waveform diagram of audio, video and each unit circuit with the purpose to help servicing personnel to judge where trouble lies in accurately and quickly to improve servicing skills. For the difference of oscillograph's type, model and tuner, a certain difference may exist, so the servicing personnel are expected to pay more attention to check in daily operation. 1. Waveform diagram for pulse DC of power board D513 anode Section Four Waveform diagram - 57 - 3. A signal waveform diagram of pin 9 of Xs301(B C D E F 、 、 、 、 ） 4. DMO signal (when there is main axis rotation) waveform diagram of pin 37 of U201 (MT1389) 5. FMO signal (when there is feed) waveform diagram of pin 38 of U201 (MT1389) - 58 - 6. TRO signal (when there is trace) waveform diagram of pin 41 of U201 (MT1389) 7. FOO signal (when there is focus) waveform diagram of pin 42 of U201 (MT1389) 8. Waveform diagram of pin 29 (when no disc in) of U214 (FLASH) - 59 - 9. Waveform diagram of pin 38of U211 (SDRAM) 10. Video signal waveform diagram 11. ACLK (12.2878MHZ): waveform diagram for external clock signal - 60 - 12. ABCK (3.07195MHZ): waveform diagram for bit clock signal 13. ALRCK (48KHZ): waveform diagram for left/right channel clock signal 14. SDATAO: waveform diagram for mixed left/right channel digital signal - 61 - 15. SDATA1: waveform diagram for surround left/right channel digital signal (now the disc being played is 2.1CH, and this signal has no output; if 5.1CH, the form is the same with that of SDATA0) 16. SDATA2: waveform diagram for centre subwoofer digital signal 17. 1KHZ analog audio signal output waveform diagram (it is suggested to use test disc, if not, the tested waveform will change at any time to affect judgment. Other waveform is accordant except subwoofer). - 62 - 18. LEF#: waveform diagram for subwoofer channel analog signal 19. AMDAT: waveform diagram for microphone signal after 5340 A/D conversion 20. SPDIF: waveform diagram for optical/coaxial digital audio signal - 63 - 21. 27M clock signal waveform diagram 22. Reset circuit waveform diagram URST# Dv33 - 64 - Section Five Function Introduction to IC 3.5.1 function introduction to MT1389 1. MT1389 (U201) adopts LQFP pin 256 casing and 3.3V/1.8V dual voltage working mode, which is a good performance large-scale CDROM front-end processing CMOS integrated circuit, and CD/VCD/DVD player special-used single chip. It includes focus servo error magnification, trace servo error magnification and horizontal output servo control. The main function are narrated as follows: (1) The main function of front-end RF small signal processing is to process and amplify signals A, B, C, D, E and F transmitted from pick-up, and automatically adjust laser output power, meanwhile fulfil the identification of VCD disc and DVD disc. (2) Digital servo processing may produce focus, trace, feed, main axis servo control signal processing and digital signal processing to realize modulating EFM/EFM+ of Therefore signal. (3) MPEG1/MPEG2/MPEG4/JPEG Video decoder. This chip can decode VCD, DVD, MPEG 4 network video, compatible with “network movie” disc, and also can read JPEG picture to fulfil digital album playback. (4) In audio aspect, AC-3/DTS dual decoding, actively read MP3, compatible with DVD Audio decode, to reach high resolution sound quality restore 1000 times higher than that of CD. (5) By using the built-in 8032 micro-processer of chip, MT1389 may also fulfil the control of the player system to simplify circuit design greatly. (6) Deal with data transferred from tuner and control the tuner. 2. Pin function of MT1389 is shown as the following table: Pin Name Function Data direction DC voltage Remark 1 AGND Analog 0 2 DVDA DVD-RF high frequency AC coupling signal A I 1.72 3 DVDB DVD-RF high frequency AC coupling signal B I 1.72 4 DVDC DVD-RF high frequency AC coupling signal C I 1.72 5 DVDD DVD-RF high frequency AC coupling signal D I 1.72 Signals A, B, C and D from loader are coupled by capacitor C201, C202, C203 and respectively 6 DVDRFIP DVD-RF high frequency AC coupling signal RFIP input I 1.2 unused - 65 - 7 DVDRFIN DVD-RF high frequency AC coupling signal RFIN input I 1.38 8 MA DVD-RAM main beam RF DC signal input A I 2 9 MB DVD-RAM main beam RF DC signal input B I 2 10 MC DVD-RAM main beam RF DC signal input C I 2 Signals A, B, C and D from loader are coupled by resistor R201, R202, R203 and R204 respectively 11 MD DVD-RAM main beam RF DC signal input D I 2 12 SA DVD-RAM assistant beam RF DC signal input A I 1.4 13 SB DVD-RAM assistant beam RF DC signal input B I 1.33 14 SC DVD-RAM assistant beam RF DC signal input C I 1.35 15 SD DVD-RAM assistant beam RF DC signal input D I 1.31 16 CDFON CD focus error inverted input I 1.33 17 CDFOP CD focus error onoinverted input I 1.3 unnsed 18 TNI 3 beam assistant PD signal interted input I 2 19 TPI 4 beam assistant PD signal noninverted input I 2 E, F signal input directly 20 MDI1 Laser power monitoring input 1 I 0 21 MDI2 Laser power monitoring input 2 I 0 22 LDO2 Laser power output 2 O 3.18 23 LDO1 Laser power output 1 O 3.18 24 SVDD3 Servo 3.3V power supply 3.2 25 CSO/RFOP Main servo signal output/RF noninverted output O 1.3 26 RFLVL/RFON RF level output/RF inverted output O 1.33 R2165 is unused, so these two pins are unused. 27 SGND Servo ground 0 28 V2REFO Reference voltage 2.8V O 2.74 29 V20 Reference voltage 2.0V O 2.18 30 VREFO Reference voltage1.4V O 1.5 31 FEO Focus error signal output O 1.5 32 TEO Trace error signal output O 1.16 R2166 is unused 33 TEZISLV Trace zero passage error input I 1.32 Joint welding with capacitor C207 connected with this position will cause disc not reading 34 OP_OUT Sensing signal magnifying output O 2.55 Input/output of main axis - 66 - 35 OP_INN Sensing signal inverted output I 2 36 OP_INP Sensing signal noninverted output I 1.74 braking circuit 37 DMO Main axis control signal output O 1.37 38 FMO Feed control signal output O 1.38 39 TROPEN PWM Close signal output O 0 40 PWMOUT1/ADIN9 the first path PWM signal output/AD universal input I 1.38 unused 41 TRO Trace control signal output O 1.38 42 FOO Focus control signal output O 1.38 43 USB_VSS USB ground 0 44 USBP USB data I/O 0 45 USBM USB data I/O 0 unused 46 USB_VDD3 USB 3.3V power supply 3.2 47 FG/ADIN8 Sensing signal input/AD universal input I 2.69 48 TDI/ADIN4 Open-to-position checking signal input/AD universal input I 3.2 49 TMS/ADIN5 Open-to-position checking signal input/AD universal input I 0 50 TCK/ADIN6 BA5954 signal output/AD universal input O 0 51 TDO/ADIN7 Open signal output/AD universal input O 0 52 DVDD18 Digital 1.8V power supply 1.8 53 IOA2 Microcontroller address bit 2 O 1.96 54 IOA3 Microcontroller address bit 3 O 1.98 55 IOA4 Microcontroller address bit 4 O 1.96 56 IOA5 Microcontroller address bit 5 O 1.69 57 IOA6 Microcontroller address bit 6 O 3.23 58 IOA7 Microcontroller address bit 7 O 3.23 59 HIGHA0 Microcontroller address bit 0 O 1.01 60 IOA18 Microcontroller address bit 18 O 0.05 61 IOA19 Microcontroller address bit 19 O 0 FLASH address signal 62 DVSS Digital 0 63 APLLCAP Analog phase-locked loop external capacitor 1.8 64 APLLVSS Analog phase-locked loop 0 - 67 - 65 APLLVDD3 Analog phase-locked loop 3.3V power supply 3.1 66 IOWR FLASH read-write control signal O 3.23 output PWR# and change into DWR# signal to control FLASH through 0 ohm resistor R297 67 A16 FLASH address bit 16 O 1.3 68 HIGHA7 Microcontroller address bit 7 O 1.18 69 HIGHA6 Microcontroller address bit 6 O 1.99 70 HIGHA5 Microcontroller address bit 5 O 2.9 71 HIGHA4 Microcontroller address bit 4 O 2 FLASH address signal 72 HIGHA3 Microcontroller address bit 3 O 1.11 73 DVDD3 Digital 3.3V power supply 3.24 74 HIGHA2 Microcontroller address bit 2 O 1.81 FLASH address signal 75 HIGHA1 Microcontroller address bit 1 O 1.55 76 IOA20 Microcontroller address bit 20 O 0 FLASH address signal 77 IOCS FLASH chip selection O 0 Output PCE# signal and change into DCE# signal to control FLASH through 0 ohm resistor R298 78 IOA1 Microcontroller address bit 1 O 2.03 FLASH address signal 79 IOOE FLASH output enable O 0 Output PRD# signal and change into DRD# signal to control FLASH output through 0 ohm resistor R299 80 DVDD3 Power supply 3.23 81 AD0 Microcontroller address/data bit 0 I/O 1.32 82 AD1 Microcontroller address/data bit 1 I/O 1.52 83 AD2 Microcontroller address/data bit 2 I/O 1.16 84 AD3 Microcontroller address/data bit 3 I/O 0.9 FLASH data signal 85 DVSS Ground 0 86 AD4 Microcontroller address/data bit 4 I/O 1.57 87 AD5 Microcontroller address/data bit 5 I/O 1.57 88 AD6 Microcontroller address/data bit 6 I/O 1.57 FLASH data signal 89 IOA21/ADIN0 Microcontroller address bit 21/AD universal input O 0.03 FLASH address signal - 68 - 90 ALE Microcontroller address enable O 1.18 unused 91 AD7 Microcontroller address/data bit 7 I/O 1.6 FLASH data signal 92 A17 FLASH address bit 17 O 0 93 IOA0 Microcontroller address bit 0 O 2.04 FLASH address signal 94 DVSS Digital 0 95 UWR Microcontroller write operation 3.22 96 URD Microcontroller read operation 3.26 unused 97 DVDD18 Digital 1.8V power supply 1.92 98 UP1_2 Microcontroller port 0 unused 99 UP1_3 Microcontroller port O 5.15 Panel communication-used clock 100 UP1_4 Microcontroller port I/O 5.2 Panel communication-used data 101 UP1_5 Microcontroller port O 5.2 Panel communication-enable 102 UP1_6 Microcontroller port O 0.3 I2C clock 103 UP1_7 Microcontroller port I/O 3.22 I2C data 104 UP3_0 Microcontroller port O 0 Tuning signal after being managed from SAA6588 105 UP3_1 Microcontroller port O 0.68 106 UP3_4 Microcontroller port I/O 3.8 Serial communication port 107 UP3_5 Microcontroller port I/O 3.23 Serial communication port 108 DVDD3 Power supply 3.24 109 ICE Microcontroller correction mode enable 0 Ground through 1K resistor R213 110 PRST Reset input I 3.3 111 IR Remote control signal input I 5.03 112 INT0 Microcontroller interrupt 0 I 3.6 unused 113 DQM0 DRAM input/output screen-shielded signal O 2.2 114 DQS0 DRAM input/output screen-shielded signal O 3.22 115 RD7 DRAM data I/O 0.9 SDRAM data line 116 DVSS Ground 0 117 RD6 DRAM data I/O 0.4 118 RD5 DRAM data I/O 0.85 SDRAM data line - 69 - 119 DVSS Ground 0.02 120 RD4 DRAM data I/O 1.62 121 RD3 DRAM data I/O 1 SDRAM data line 122 DVDD18 Digital 1.8V power supply 1.9 123 RD2 DRAM data I/O 1.15 124 RD1 DRAM data I/O 0.92 125 RD0 DRAM data I/O 0.92 126 RD15 DRAM data I/O 0.66 SDRAM data line 127 DVDD3 Digital 3.3V power supply 3.21 128 RD14 DRAM data I/O 1.2 129 RD13 DRAM data I/O 1.2 130 RD12 DRAM data I/O 1.42 131 RD11 DRAM data I/O 0.85 132 RD10 DRAM data I/O 0.87 SDRAM data line 133 RD9 DRAM data I/O 0.98 SDRAM data line 134 DVSS Ground 0.01 135 RD8 DRAM data I/O 0.67 SDRAM data line 136 DQS1 DRAM input/output screen-shielded signal O 3.24 137 DQM1 DRAM input/output screen-shielded signal O 2.6 138 RWE DRAM write enable O 3.17 Output WE# signal and change into DWE# to control the write of SDRAM through 33 ohm resistor 139 CAS DRAM line address selection O 3.11 Output RAS# and change into DCAS# to control line address selection of SDRAM through 33 ohm resistor R267 140 RAS DRAM row address selection O 3.15 Output RAS# and change into DRAS# to control row address selection of SDRAM through 33 ohm resistor R266 141 DVDD3 Digital 3.3V power supply 3.22 - 70 - 142 RCS DRAM chip selection O 2.7 Output CS# and change into DCS# to control chip selection of SDRAM through 33 ohm resistor 265 143 BA0 DRAM section address 0 O 1.75 144 DVSS Ground 0 145 BA1 DRAM section address 1 O 1.95 146 RA10 DRAM address O 0.04 147 RA0 DRAM address O 0.4 SDRAM address line 148 DVSS Ground 0 149 RA1 DRAM address O 2.2 150 RA2 DRAM address O 2.25 151 RA3 DRAM address O 1.57 SDRAM address line 152 DVDD18 Digital 1.8V power supply 1.91 153 RVREF/ADIN3 Reference voltage/AD universal input I 0.01 154 RCLKB DRAM clock O 0.01 unused 155 DVDD3 Digital 3.3V power supply 3.21 156 RCLK DRAM clock O 1.66 157 CKE DRAM clock enable O 1.2 158 RA11 DRAM address O 0.03 159 RA9 DRAM address O 0.07 160 RA8 DRAM address O 0.04 SDRAM address line 161 DVSS Digital 0 162 RA7 DRAM address O 1.4 SDRAM address line 163 DVSS Digital 0 164 RA6 DRAM address O 1.44 165 RA5 DRAM address O 1.74 166 RA4 DRAM address O 1.63 SDRAM address line 167 DVDD3 Digital 3.3V power supply O 3.21 168 RD13/ASDATA5 DRAM data/audio serial data I 5.04/3.03 Digital potentiometer input (J3) 169 RD30 DRAM data I/O 0.01 Digital potentiometer inpout (J4) - 71 - 170 RD29 DRAM data O 0.01 CD4052 select signal (AUNIN SL0) 171 RD28 DRAM data 0.01 CD4052 select signal (AUNIN SL1) 172 RD27 DRAM data 0.01 select signal of N4 74HCT125 173 DVDD18 Digital 1.8V power supply 1.91 174 RD26 DRAM data I/O 3.6 Output to N12. When headphone is not inserted, output 3.3V, and now the output to headphone from N12 has no waveform. When headphone is inserted, this pin outputs 0v, and now only the output to headphone and to left/right channel of AV board of N12 output have waveform, which is headphone select signal. 175 DVSS Digital I/O 0 Ground 176 RD25 DRAM data I/O 3.6 Mute signal 177 RD24 DRAM data I/O 1.68 178 DQM3 DRAM input/output screen-shielded signal O 0.04 Resistor R225 is unused, so this signal is unused in this model. 179 DQM2 DRAM input/output screen-shielded signal O 0.01 Field sync signal 180 RD23 DRAM data I/O 0.01 unused 181 RD22 DRAM data I/O 0.01 Whether headphone is inserted to detecting signal 182 DVDD3 Digital 3.3V power supply 3.21 183 RD21 DRAM data 0.02 When selecting tuning function, open power supply loop of tuner. 184 RD20 DRAM data 0.01 unused 185 RD19 DRAM data 0.02 control signal of tuner 186 RD18 DRAM data 0.02 tuner data - 72 - 187 RD17 DRAM data 0.02 tuner clock 188 RD16 DRAM data 0.01 tuner data 189 DACVDDC D/A conversion 3.3V power supply 3.5 190 VREF Reference voltage 1.32 191 FS 1.32 192 YUV0/CIN 1.8 unused 193 DACVSSC D/A conversion 0.01 194 YUV1/Y Video signal YUV1 output/Y signal output O 0.74 Supply Y signal for S-video 195 DACVDDB D/A conversion 3.3V power supply 3.19 196 YUV2/C Video signal YUV2 output/C signal output O 1.47 Supply C signal for S-video 197 DACVSSB D/A conversion 0.01 198 YUV3/CVBS Video signal YUV3 output/CVBS signal output O 0.74 Provide for video output port (VIDEO) 199 DACVDDA D/A conversion 3.3V power supply 3.17 200 YUV4/G Video signal YUV4 output/G signal output O 0.5 Supply Y1 signal for component video output port 201 DACVSSA D/A conversion 0.01 202 TUV5/B Video signal YUV5 output/B signal output O 0.01 Supply Pb signal for component video output port 203 YUV6/R Video signal YUV6 output/R signal output O 0 Supply Pr signal for component video output port 204 DVDD3 Digital 3.3V power supply 3.21 205 VSYNC/ADIN1 Field sync signal output/AD universal input O 0.04 Supply for SCART 206 YUV7/ASDATA5 Video signal YUV7 output/audio serial data 3.79 unused 207 HSYNC/ADIN2 Line sync signal output/AD universal input O 0.2 Supply for SCART 208 SPMCLK I 0.01 unused 209 SPDATA 0.14 unused 210 SPLRCK 3.78 unused 211 SPBCK/ASDATA5 3.86 unused 212 DVDD3 Digital 3.3V power supply 3.21 213 ALRCK Audio left/right channel clock O 1.52 214 ABCK Audio bit clock O 1.6 215 ACLK Audio DAC external clock O 1.59 - 73 - 216 DVSS Digital 0 217 ASDATA0 Audio serial data O 0.01 218 ASDATA1 Audio serial data O 0.01 219 ASDATA2 Audio serial data O 0.01 220 ASDATA3 Audio serial data 0.01 unused 221 DVDD18 Digital 1.8V power supply 1.93 222 ASDATA4 Audio serial data O 3.22 Give audio IC reset signal 223 DVSS Digital 0.01 224 MC_DATA MIC digital audio input I 1.24 225 SPDIF Digital audio signal output O 1.61 226 RFGND18 RF signal 0.01 227 RFVDD18 RF signal 1.8V power supply 0.64 228 XTALO Clock output O 3.18 229 XTALI Clock input I 3.04 230 JITFO RF small signal output O 0.04 231 JITFN RF small signal reversely amplifying input I 2.23 232 PLLVSS Phase-locked loop 0.06 233 IDACEXLP 3.22 234 PLLVDD3 Phase-locked loop 3.3V power supply 0.01 235 LPFON Amplifier loop filter output O 0.01 236 LPFIP Amplifier loop filter input I 0.01 237 LPFIN Amplifier loop filter input I 0.09 238 LPFOP Amplifier loop filter output O 2.24 239 ADCVDD3 D/A conversion 3.3V power supply 3.22 240 S_VCM 0 241 ADCVSS D/A conversion 0 242 S_VREFP 0 243 S_VREFN 0.03 244 RFVDD3 RF 3.3V power supply 3.22 245 RFRPDC DC RF error signal input 0.73 246 RFRPAC AC RF error signal input 1.37 247 HRFZC High frequency RF signal zero passage detect 3.2 - 74 - 248 CRTPLP 1.53 249 RFGND RF ground 0.01 250 CEQP 0.05 251 CEQN 0.02 252 OSP 1.68 253 OSN 1.68 254 RFGC 1.06 255 IREF Reference current 0.92 256 AVDD3 Analog 3.3V power supply 3.22 3.5.2 function introduction to FLASH U214 (FLASH) 16Mbit memorizer, FLASH function pin are shown as follows: Pin Name Function Voltage (when no disc) Data direction 1-9、16-25、48 AO-A19 20 bit address bus I 11 WE Write enable signal, low level is effective 3.23V I 12 RESET Reset, low level is effective 3.23V I 10、13、14 NC Blank pin 15 RY/BY Ready/system busy 3.23V O 26 CE Chip enable, low level effective 0V I 27、46 VSS Ground 28 OE Output enable signal , low level is effective 0V I 29-3、6、38-44 DQ0-DQ14 15 bit data bus O 37 VCC 5V power supply +5V 45 DQ15/A-1 Take word extend mode as data line, and bit extend mode as address line I/O 47 BYTE Select 8-bit or 16-bit output mode. High level is 16-bit output and low level is 8-bit output I 3.5.3 function introduction to SDRAM The function of SDRAM (U211) in the player is to save program taken out by Mt1389 from FLASH and information of picture and sound taken out from disc when the player is working to form damping, add the stability of information output and add anti-vibration of the player. The pin function and real voltage are shown - 75 - as the following table: Pin Name Data direction Function Voltage (V) Pin Name Data direction Function Voltage (V) 1 VDD 3.3V power supply 3.18 28 VSS Ground 0.01 2 DQ0 I/O Data bus 0.94 29 MA4 I Address bus 1.65 3 VDDQ I/O 3.3V power supply 3.19 30 MA5 I Address bus 1.74 4 DQ1 I/O Data bus 0.9 31 MA6 I Address bus 1.49 5 DQ2 I/O Data bus 1.3 32 MA7 I Address bus 1.22 6 VSSQ Ground 0 33 MA8 I Address bus 0.05 7 DQ3 I/O Data bus 1.2 34 MA9 I Address bus 0.04 8 DQ4 I/O Data bus 1.5 35 MA11 I Address bus 0.04 9 VDDQ 3.3V power supply 3.18 36 NC Blank pin 0.01 10 DQ5 I/O Data bus 0.7 37 CKE I Clock enable signal 1.22 11 DQ6 I/O Data bus 0.45 38 CLK I System clock input 1.68 12 VSSQ Ground 0 39 UDQM I Data in/out screen-shielded signal 2.42 13 DQ7 I/O Data bus 0.8 40 NC Blank pin 0.01 14 VDD 3.3V power supply 3.14 41 VSS Ground 0.01 15 LDQM I Data in/out screen-shielded signal 2.46 42 DQ8 I/O Data bus 0.6 16 WE I Write control signal 3.17 43 VDDQ 3.3V power supply 3.19 17 CAS I Line address gating signal 3.01 44 DQ9 I/O Data bus 0.91 18 RAS I Row address gating signal 3.13 45 DQ10 I/O Data bus 0.8 19 CS I Chip selection signal 2.95 46 VSSQ Ground 0.01 20 SD-BS0 I Section address 0 gating signal 1.8 47 DQ11 I/O Data bus 0.79 21 SD-BS1 I Section address 1 gating signal 2 48 DQ12 I/O Data bus 1.16 22 MA10 I Address bus 0.04 49 VDDQ 3.3V power supply 3.19 23 MA0 I Address bus 0.36 50 DQ13 I/O Data bus 1.15 24 MA1 I Address bus 0.35 51 DQ14 I/O Data bus 1.24 25 MA2 I Address bus 2.38 52 VSSQ Ground 0.01 26 MA3 I Address bus 1.59 53 DQ15 I/O Data bus 0.68 27 VDD 3.3V power supply 3.19 54 VSS Ground 0.01 - 76 - 3.5.4 function introduction to D5954 D5954 (U302) is a servo drive IC with built-in 4-channel drive circuit. Digital focus, trace, feed and main axis drive signal outputted by MT1389 is sent to D5954 for amplifying through RC integration circuit. The focus, trace, feed and main axis drive signal being amplified by D5954 is sent to loader to fulfil the corresponding servo work. The introduction to function pin is shown as the following table: Pin Name Function Voltage when no disc (V) DVD disc voltage (V) CD disc voltage (V) 1 VINFC Focus control signal input 1.41 1.4 1.45 2 CF1 External feedback loop 2.3 2.54 2.43 3 CF2 External feedback loop 2.01 2.56 2.43 4 VINSL+ Forward control input, connected to reference voltage 1.41 1.42 1.42 5 VINSL- Main axis control signal input 1.4 1.42 1.42 6 VOSL External feedback resistor 1.4 1.17 1.21 7 VINFFC Focus feedback signal input 1.92 2.59 2.36 8 VCC 5V power supply 5.38 5.04 5.01 9 PVCC1 5V power supply 5.38 5.04 5.03 10 PGND Ground 0.01 0.01 0.01 11 VOSL- Main axis drive reverse voltage output 1.87 3.71 3.54 12 VO2+ Main axis drive forward direction voltage output 1.87 1.24 1.4 13 VOFC- Focus drive reverse voltage output 3.3 2.6 2.33 14 VOSC+ Focus drive forward voltage voltage output 3.3 2.46 2.68 15 VOTK+ Trace drive forward direction voltage output 3.39 2.56 2.51 16 VOTK- Trace drive reverse voltage output 3.52 2.48 2.51 17 VOLD+ Feed drive forward direction voltage output 0.93 2.56 2.5 18 VOLD- Feed drive reverse voltage output 0.93 2.59 2.62 19 PGND Ground 0.01 0.01 0.01 20 VINFTK Trace feedback signal input 3.73 2.5 2.53 21 PVCC2 5V power supply 5.38 5.08 5.07 22 PREGND Ground 0 0.01 0.01 23 VINLD Feed control signal input 1.4 1.41 1.4 24 CTK2 External feedback loop 2.41 2.52 2.53 25 CTK1 External feedback loop 2.51 2.52 2.53 26 VINTK Trace control signal input 1.42 1.42 1.41 27 BIAS 1.4V reference voltage input 1.41 1.42 1.42 28 STBY Enable control signal 0 3.18 3.19 - 77 - 3.5.5 function introduction to CS4360 CS4360 (U207) is a 6CH audio D/A converter produced by CIRRUS LOGIC company, which can realize digital volume adjustment through software. Each step is with 1DB adjustment coefficient, with 9DB decay range and +3.3V or +5V voltage power supply is adopted, 28 pin casing. The main features include 24-bit sampling accuracy, highest sampling frequency, dynamic range of 02DB, SNR of -90DB. When in 3.3V voltage working mode, power consumption is 105MV. Function pin introduction is shown as the following table. Pin Name Function Voltage (V) Pin Name Function Voltage (V) 1 VLS Serial audio power supply, +3.3V 3.22 15 M2 Mode 2 1.3 2 SDIN1 Serial audio data 1 input 0 16 FILT+ In-phase feedback voltage output 4.89 3 SDIN2 Serial audio data 2 input 0 17 VQ External filter of static working voltage 2.42 4 SDIN3 Serial audio data 3 input 0 18 MUTEC3 Output 3 mute control 5.03 5 SCLK Bit clock 1.6 19 AOUTB3 Analog audio 3 output 2.44 6 LRCK Left/right channel clock 1.52 20 AOUTA3 Analog audio 3 output 2.44 7 MCLK Main clock input 1.59 21 GND Ground 0 8 VD Digital power supply, +3.3V 3.22 22 VA Analog power supply, +5V 5.04 9 GND Ground 0 23 AOUTB2 Analog audio 2 output 2.44 10 RST Reset input 3.21 24 AOUTA2 Analog audio 2 output 2.44 11 SCL Serial control clock 0.29 25 MUTEC2 Output 2 mute control 5.03 12 SDA Serial control data 3.22 26 AOUTB1 Analog audio 2 output 2.44 13 CS/M1 Chip selection/mode 1 0 27 AOUTA1 Analog audio 2 output 2.44 14 VLC Control port power supply, +3.3 3.22 28 MUTEC1 Output 1 mute control 5.03 3.5.6 Function introduction to CS5340 Cs5340 (U210) is a kind of complete A/D converter used in digital audio system. It has sampling, A/D conversion and anti-aliasing filtering function, and can generate 24-bit sampling frequency to left and right channels with serial value of each channel up to 2000 KHz. A 5-step multi-bit DELTA-SIGMA modulator is adopted, with digital filtering and simplification function, so external anti-aliasing filter is not needed. It isspecially applicable for audio system required wide dynamic range, Hi-Fi and low noise. Pin Name Data direction Function Remark 1 M0 I Mode selection Decide the operation mode of element 2 MCLK I Main clock Δ -δ clock source of adjustor and digital filter 3 VL I Logic power supply Forward power supply of digital input/output - 78 - 4 SDOUT O Series audio data output Two's complement of output series audio data 5 GND Analog 6 VD I Digital power supply Provide forward power supply for digital part 7 SCLK I/O Series clock Provide series clock for series audio interface 8 LRCK I/O Left/right clocl Left/right audio time sequence control clock 9 RST I Reset Element enters a low-consumption state when in low level 10 AINL I Analog input 11 VQ O Static voltage 12 AINR I Analog input 13 VA I Analog power supply Provide forward power supply for analog part 14 REF_GND Reference Provide reference ground for internal sampling circuit 15 FILT+ I Forward reference voltage 16 M1 I Mode selection Decide the operation mode of element 3.5.7 Function introduction to LM1117MP-1.8 LM1117MP-1.8V is 1.8V voltage regulator, locates on decode board to provide 1.8V stable voltage for MT1389. Pin function is shown as the following table: Pin Name Function Remark 1 GND Ground 2 OUT 1.8V voltage output 1.8V 3 IN Voltage input 3.3V 3.5.8 Function introduction to HS0038A2 Infrared receiver HS0038A2 or HS0038B has three pins: power supply anode (pin 2), power supply cathode (pin 1) and data output port (pin 3). If 5V is used for power supply, when keeping the state, voltage of data output port is also 5V (HS0038B requires pull-up resistor). The internal part is composed of infrared receiving diode and amplification circuit. To reduce the interference of visible light to working, diode part of infrared receiving usually adopts black resin casing to filter the beam with waveform length below 700nm. The amplification circuit is composed of an integrated block and elements of resistor and capacitor (including amplification, frequency selection and demodulator circuit), cased inside a screen-shielded box. - 79 - Pin function is shown as the following figure: Pin Name Function Voltage Remark 1 GND Ground 0 2 VCC Power supply 5.1 3 IR Remote control data 5.1 When there is remote control signal, voltage of IR signal changes between 5.1 and 4.1. 3.5.9 Function introduction to 4558/TDA1308 4558/4580 includes two integrated operational amplifiers inside, and pin function is shown as the following table: Pin Function Signal flow Pin Function Signal flow 1 Output of operational amplifier A O 5 Output of operational amplifier B O 2 Cathode input of port operational amplifier A I 6 Cathode input of port operational amplifier B I 3 Anode input port of operational amplifier A I 7 Anode input of port operational amplifier B I 4 minus 9V voltage input I 8 (+) 9V voltage input I 2. U602 (TDA1308) is a headphone drive chip, and pin function is shown as the following table: Pin Name Function Signal flow Pin Name Function Signal flow 1 OUT1 Headphone right channel output I 5 IN2+ Reference voltage input I (2.3V) 2 IN1- Right channel signal input O 6 IN2- Left channel signal input I 3 IN1+ Reference voltage input I (2.3V) 7 OUT2 Headphone left channel output O 4 GND Ground 8 VDD (+) 5V power supply 3.5.10 Function introduction to U501 (FDSH321) Pin 6¡¢7¡¢8 of 5L0380 is controlled by feedback pin 3 to make it on for a while and off for another while to form pulse DC to control coupling quantity of transformer. When secondary output voltage of transformer is on the high side, under the control of pin 3, disconnection time of pin 6¡¢7¡¢8 gets longer and coupling quantity of transformer decreases to make output voltage get lower gradually; when secondary output voltage of transformer is on the low side, disconnection time of pin 6¡¢7¡¢8gets shorter, connection time gets longer (connect inside fsdh321), coupling quantity of transformer decreases and secondary output voltage gets larger gradually. Pin function is shown as the following table: Pin Symbol I/O Description 1 GND Sense FET source terminal on primary side and internal control ground. 2 VCC Positive supply voltage input. - 80 - 3 Vfd The feedback voltage pin is the non-inverting input to the PWM comparator. 4 Ipk Pin to adjust the current limit of the Sense FET. 5 Vstr This pin connects directly to the rectified AC line voltage source. 6 DRAIN 7 DRAIN 8 DRAIN The Drain pin is designed to connect directly to the primary lead of the transformer and is capable of switching a maximum of 650V. Minimizing the length of the trace connecting this pin to the transformer will decrease leakage inductance. 3.5.11 Function introduction to ncp1200 the NCP1200 represents a major leap toward ultra¨Ccompact Switch¨CMode Power Supplies. Thanks to a novel concept, the circuit allows the implementation of a complete offline battery charger or a standby SMPS with few external components. Furthermore, an integrated output short¨Ccircuit protection lets the designer build an extremely low¨Ccost AC/DC wall adapter associated with a simplified feedback scheme. With an internal structure operating at a fixed 40 kHz, 60 kHz or 100 kHz, the controller drives low gate¨Ccharge switching devices like an IGBT or a MOSFET thus requiring a very small operating power. Thanks to current¨Cmode control, the NCP1200 drastically simplifies the design of reliable and cheap offline converters with extremely low acoustic generation and inherent pulse¨Cby¨Cpulse control. When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the skip cycle mode and provides excellent efficiency at light loads. Because this occurs at low peak current, no acoustic noise takes place. Finally, the IC is self¨Csupplied from the DC rail, eliminating the need of an auxiliary winding. This feature ensures operation in presence of low output voltage or shorts. PIN Symbol I/O Description 1 ADJ I Adjust the skipping peak current 2 FB O Sets the peak current set point 3 CS I Current sense input 4 GND I Ground 5 DRV O Driving pulses 6 VCC I Power supply 7 NC 8 HV I Generates the VCC from the line 3.5.12 Function introduction to U503 (LM431A) U503 (LM431A) is a 2.5V comparator, shown as the figure 3.5.12.1. Compared the inputted voltage of - 81 - R end with 2.5V, when voltage of R end is more than 2.5V, KA end is on and photoelectric coupler starts to send out photocurrent; when voltage of R end is less than 2.5V, KA end is cutoff and photoelectric coupler does not send out photocurrent. CPU+3.3V in power board circuit must be kept in 3.3V, for the function of comparator. No matter more than or less than 3.3V, through on and off status of comparator, it will control the on state of the output end of photoelectric coupler LM431A to adjust the output space occupation ratio of switch module to control the output voltage of transformer and masthead the power supply of the whole system. K R A Figure 3.5.12.1 LM431A outside drawing 3.5.13 Function introduction to U502 U502 (2501) is a photoelectric coupler, shown as the figure 3.5.13.1. The right side is a light emitting diode, which sends out light of different intensity according to the strength of voltage inputted from the right side, generates photocurrent of different intensity on the left side according to light of different intensity, and outputs from position D. The higher of the voltage inputted from the right side, the stronger of the light emitted from light emitting diode and the larger of the photocurrent produced from position D. The lower of the voltage inputted from the right side of photoelectric coupler, the weaker of the light emitted from light emitting diode and the weaker of the current outputted from position D. Figure 3.5.13.1 2501 outside drawing - 82 - - 83 - DVD players manufactured in BBK are largely identical but with minor differences and are mainly composed of loader components, control panel components, decode and servo board components, power board components, power amplifier board components, MIC board components and AV board components. In order to speed up the compilation of “Service Manual”, we shall not give repeat explanation to model with minor differences in chapter four “Disassembly and Assembly Process” for the later compiled service manuals. For disassembly and assembly process in this chapter, please refer to chapter 4 of “DK1005S Service Manual” or “DK1020S Service” . The pictures of this model are shown as follows: Chapter Four Disassembly and Assembly Process G603 S V MIC601 JP609 G602 DVD 2006/2/10 6717-0 AGND L R JK601 JP608 TC620 TC618 TC617 R611 TC619 1 JP603 -9V TC605 JP602 U601 JP606 TC616 TC615 XS601 TC614 +9V AGND OK DET JP601 R629 JP605 JP604 JP607 + - XS603 + G601 TC601 Chapter Cinque PCB board & Circuit diagram Section One PCB board 5.1.1 Surface layer of MIC Board - 84 - R608 Q602 L601 R602 C609 R604 C604 R632 R626 C620 C622 R638 R636 R634 C617 U603 R631 R633 C611 C621 C619 C606 R610 1 R637 C607 R613 C603 R606 R605 R607 C601 R635 C612 C613 R630 R617 C608 R601 Q601 C602 R621 R622 R623 C616 R628 R627 R625 C605 R603 C623 ZD601 5.1.2 Bottom layer of MIC Board - 85 - R309 R308 C273 U209 DV33 RXD GND R255 TXD C2146 RN206 2521S-0 DVD 2005/06/20 R2153 TC233 C2121 Q207 R2113 C C TC301 V306 XS302 V307 R329 R330 E E E B B C B C309 R324 C255 E C294 B C V308 C303 TC309 R271 U214 D C302 R320 R312 C304 C212 C305 R313 R211 C306 R316 R314 C243 R315 R306 R307 C211 TC303 C210 C206 TC209 R204 R203 R202 R201 R221 U215 R325 R277 R326 C213 R327 V310 R339 R210 C215 R212 C205 C204 C201 C203 C202 L309 C310 R209 R208 R322 R319 R321 R340 XS303 R304 L321 L322 L324 XS301 L314 L316 R305 C312 L317 L319 L318 L320 V305 R242 R311 R331 D L323 L301 L305 V309 TC308 U302 L310 L312 R301 V301 R302 TC302 V302 L204 C279 C262 XS202 R229 XS201 C267 TC237 C266 L231 C264 L233 S1 L232 C263 RN204 RN207 S2 RN208 R230 L229 C281 L230 C265 50 54 TC246 1 U211 1 V 26 28 25 27 R287 RN203 50 RN202 1 U203 RN201 T R206 C2155 TC229 TC230 R2159 C2135 R2147 R2154 C2124 C2143 R2145 R2146 R295 C2154 C2123 C217 C216 RN205 R285 R284 R286 R214 RN210 U206 R282 C2153 Q204 U207 C2157 C2156 26 U204 R2184 25 L226 C C325 R252 R256 C278 R254 C277 R249 R247 C R246 R245 TC210 VD201 R234 R332 U205 R250 R251 R226 B TC228 C2139 28 Q208 TC222 TC223 R2124 R2114 R2123 R2128 R2116 Q210 R2151 R2150 C274 C2136 R2155 C2126 C2127 R2149 R2127 R2125 R2115 Q209 U221 C2140 TC224 C324 R236 R2126 R237 C323 R2101 VD217 R276 TC238 C2101 L247 C2102 TC226 TC227 L307 MUTEA V303 ASTB GND AVCC DV33 R243 C268 G O C271 L306 L303 TC207 GND VCC GND -9V VD205 +9V GND OKA C269 C291 I L228 L224 Q212 R2104 TC204 R2106 Q211 TC208 R2109 Q219 VD206 R2108 Q218 R270 R2105 C295 L245 C296 R280 L248 C2104 C2105 R205 C272 L236 C229 C227 C226 C225 C224 U201 C223 C240 C235 TC202 C260 R259 R269 R268 VD207 VD208 VD209 TC235 R2102 C259 U202 TC225 C288 R2180 C286 TC220 C285 C326 R207 C2116 C220 C219 C233 R227 R244 C275 R222 L249 R248 C2158 R2142 C2133 R2143 C2120 R2141 R2134 R2135 C276 R2148 C2114 C2115 C2129 R2139 R225 C2118 C2130 R2138 R2152 C2142 A C2117 R2133 R2137 U210 R289 C327 R288 R279 R278 X201 B R294 TC232 R273 C298 L246 C299 R2132 R2156 U219 R2131 C2122 R2136 C2141 C2111 C2112 R2129 C2152 VD216 R2130 R233 C270 TC240 R2118 R2117 C2138 Q205 XS204 R2111 A TC236 C208 TC221 TC241 R2119 Q206 R2120 U220 R2112 R2122 R2121 DET XS203 L218 L219 R261 R274 L225 R283 R2107 R2103 R2160 C289 L243 C292 L244 VD211 VD213 C290 C293 VD221 VD215 VD219 L205 C2151 C2150 VD210 VD212 VD214 VD220 VD218 5.1.3 Surface layer of DECODE&SERVO Board - 86 - DV33 RXD TXD GND C329 C328 L203 R2140 R239 C322 C318 C321 C242 C317 R240 R238 R272 TRIN GND TROUT LOAD+ LOAD- R275 C2145 R241 R298 R299 C2175 L202 C214 R297 C244 C308 R318 C307 R317 C241 C319 C320 R228 C234 C330 C331 C332 C251 C333 R258 R257 C256 C252 R213 C257 C254 C207 R223 R2165 R2166 C228 R224 C236 L201 C253 C258 SP- SP+ GND LIM SL- SL+ L304 C301 L311 C311 R303 V304 R323 R310 C231 FS0 VSDA VSCK VSTB GND VCC IR C2169 C2163 C249 R281 C297 C246 R2164 C2167 R263 C247 R264 R232 L235 R290 C245 C2171 C2168 RN209 C280 C2164 C2172 R262 R231 R2183 C2162 C2170 C282 C2173 R2182 C232 R2181 C2160 C2166 C283 L308 ASTB AVCC MUTEA GND DV33 GND VCC GND -9V +9V GND OKA VD223 VD222 R2187 R260 C238 C221 C261 R2186 R2185 R216 R217 R218 R219 C345 C287 C222 C239 C237 L234 C230 C248 C250 C2174 C284 C218 R215 C344 C343 DET 5.1.4 Bottom layer of DECODE&SERVO Board - 87 - 5.1.5 Surface layer of AV OUT Board - 88 - ZD702 R718 C723 C724 R720 R722 R716 L714 D702 D701 L713 R719 ZD701 C725 C726 C728 C716 C702 L702 C710 R709 R708 L709 R701 R702 C701 L707 C717 C715 R703 C711 ZD703 R706 L710 C719 C727 R711 C720 R713 R712 R710 L708 L712 L711 C718 C721 C708 R715 ZD704 C713 C705 C712 C706 L701 C707 C703 L703 C704 5.1.6 Bottom layer of AV OUT Board - 89 - K404 TC402 TC407 XS401 R418 V O G U403 2004.10.4 LEI LED401 K402 VFD401 4973-2 K401 XS402 VFDAT VFDCK VFDST K403 LED402 GND IR 5.1.7 Surface layer of Main panel - 90 - C431 R415 C432 R419 C405 C433 D402 DZ402 R422 C437 DZ406 XS403 C439 LED2 GND C438 SEG2# KEY1 23 C408 12 R420 R409 1 44 34 U401 R405 R408 R407 R406 C409 C410 C411 C412 C413 R410 C403 C404 R417 DZ404 R403 R412 R416 R402 C435 C429 C428 C427 R414 R401 C426 C425 C424 C423 C422 C421 C416 C415 C414 C420 C419 C418 C417 R411 C434 R404 C401 DZ403 C406 R413 D401 R421 C430 R423 V401 DZ401 C436 R425 DZ405 R424 5.1.8 Bottom layer of Main panel - 91 - TC508 AGND JP503 JP513 R504 C506 BC501 BC504 F501 G502 T1.6A L250V FUSE REPLACE AGAINST RISK ONLY CAUTION: CONTIUED FOR OF FIRE PROTECTION WITHSAME TYPE R501 F501 F502 T1.6AL250V BCN502 ~220V BCN501 D502 D503 ZD503 C504 L501 D504 D501 U501 L503 R505 JP505 TC502 R512 R518 R503 TC501 C502 C503 D505 VOLTAGE HIGH L G501 BCN503 ~220V N BC505 R516 C507 U502 D506 BC503 R502 K R R506 R507 U503 R508 A C515 JP517 C519 D512 D513 D510 JP518 R509 D511 TC512 GND SA5V ZD501 +3.3V TC507 JP511 TC514 R517 TC505 TC511 R515 L508 GND GND +5V Q501 E B C CN502 -9V +9V C512 JP510 R511 TC510 C510 JP501 L507 TC503 L505 TC506 L509 TC504 C511 C508 C518 T501 G504 D508 OKA DET C514 JP520 DVD 2006/03/30 5DV717-0 ZD502 JP514 G505 FL- JP509 FL+ GND GND -21V +5V +3.3V -9V +9V AGND C513 R510 CN501 G503 OKA DET AGND 5.1.9 Power Board - 92 - SW1 1 SW2 2 SW3 3 SW4 4 DO 5 DIN 6 VSS 7 CLK 8 STB 9 KEY1 10 KEY2 11 KEY3 12 KEY4 13 VDD 14 S1 15 S2 16 S3 17 S4 18 S5 19 S6 20 S7 21 S8 22 S9 23 S10 24 S11 25 S12/G1 26 VEE 27 S13/G1 28 S14/G9 29 S15/G8 30 S16/G7 31 G6 32 G5 33 G4 34 G3 35 G2 36 G1 37 VDD 38 LED4 39 LED3 40 LED2 41 LED1 42 VSS 43 OSC 44 U401 UPD16312 C401 104 C403 121 C404 121 1 2 3 U403 HS0038B3V K404 K403 K401 K402 D401 1N4148 D402 1N4148 -21V GRID5 GRID4 GRID3 GRID2 GRID1 VCC SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 VCC VFDST VFDCK VFDAT VCC KEY1 KEY2 KEY3 KEY4 GND SW4 SW3 SW2 MSW GND SEG12 SEG13 SEG14 SEG15 SEG16 VCC KEY4 KEY3 KEY2 KEY1 -21V FIL+ FIL- SEG1 SEG2 VFDST VFDCK VFDAT IR GND GND C405 104 R415 100R IR R405 51K R401 33K R402 33K R403 33K R404 33K R406 1K R407 1K R408 1K R409 1K R411 10K R412 10K R413 10K R414 10K GRID6 GRID5 GRID4 GRID3 GRID2 FIL- FIL+ SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 C406 121 R417 10K VCC 2 3 4 1 5 XS402 XS05 2 3 4 1 5 XS401 XS05 TC402 100uF/16V TC407 100uF/16V R418 10R 1/4W F1 1 F1 2 P16 4 P13 7 P14 6 P15 5 P12 8 P11 9 P10 10 P9 11 P8 12 P7 13 P6 14 P5 15 P4 16 P3 17 P2 18 P1 19 NC 23 NC 24 NC 25 NC 26 5G 31 6G 32 1G 27 2G 28 3G 29 4G 30 F2 34 F2 35 NC 20 NC 21 NC 22 VFD401 VFD-35 GRID1 GRID6 SEG2# SEG2# KEY1 2 3 4 1 XS403 XS02 R420 470R VCC C408 151 C409 151 C410 151 C411 151 C412 151 C413 151 R421 1K R422 1K DZ401 5.1V DZ402 5.1V C430 151 C431 151 DZ406 5.1V(DNS) DZ405 5.1V(DNS) DZ404 5.1V(DNS) DZ403 5.1V C414 121 C415 121 C416 121 C417 121 C418 121 C419 121 C420 121 C421 121 C422 121 C423 121 C424 121 C425 121 C426 121 C427 121 C428 121 C429 121 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 R416 10K VCC R410 10K VCC C432 104/50V GND R419 10K VCC VCC C433 102 C434 151 C435 151 C436 151 C437 151 C438 151 VCC R423 10K LED1 1 2 LED402 LED R424 470R R425 470R LED2 LED1 V401 9015CS GND LED2 1 2 LED401 RED LED C439 151 R109 1 Section Two circuit diagram 5.2.1 KEY SCAN Board - 93 - DVDA 2 CEQP 250 DVDB 3 DVDC 4 DVDD 5 AGND 1 OSP 252 OSN 253 DVDRFIP 6 DVDRFIN 7 MA 8 MB 9 MC 10 MD 11 SA 12 SB 13 SC 14 SD 15 CDFON 16 CDFOP 17 TNI 18 TPI 19 MDI1 20 MDI2 21 LDO2 22 LDO1 23 AVDD3 256 V2REFO 28 SGND 27 VREFO 30 V20 29 TEO 32 FEO 31 USB_VSS 43 RFLVL/RFON 26 CSO/RFOP 25 TEZISLV 33 OP_OUT 34 OP_INN 35 OP_INP 36 FOO 42 TRO 41 USBM 45 TROPENPWM 39 PWMOUT1/V_ADIN9 40 USB_VDD3 46 FMO 38 DMO 37 HIGHA0 59 HIGHA1 75 HIGHA2 74 HIGHA3 72 HIGHA4 71 HIGHA5 70 HIGHA6 69 HIGHA7 68 DVDD18 52 AD7 91 DVSS 62 APLLCAP 63 AD5 87 AD4 86 APLLVSS 64 APLLVDD3 65 AD3 84 AD2 83 AD1 82 AD0 81 DVDD3 73 IOA0 93 IOA2 53 IOA3 54 IOA4 55 IOA5 56 DVDD3 80 IOA6 57 IOA7 58 A16 67 A17 92 DVSS 85 IOA18 60 IOA19 61 IOA20 76 IOA1 78 ALE 90 IOOE 79 IOWR 66 IOCS 77 DVSS 94 UWR 95 URD 96 DVDD18 97 UP1_2 98 UP1_3 99 UP1_4 100 UP1_5 101 UP1_6 102 UP1_7 103 UP3_0 104 UP3_1 105 DVSS 116 UP3_4 106 UP3_5 107 RFVDD3 244 RFRPDC 245 DVDD3 108 ICE 109 PRST 110 IR 111 INT0 112 DVDD18 122 DQM0 113 DQS0 114 RD7 115 RD6 117 RD5 118 RD4 120 DVSS 119 RD3 121 RD2 123 RD1 124 RD0 125 RD15 126 RD14 128 DVDD3 127 RD13 129 YUV0/CIN 192 FS 191 VREF 190 DACVDDC 189 RD16 188 RD17 187 RD18 186 RD19 185 RD20 184 RD21 183 DVDD3 182 RD22 181 RD23 180 DQM2 179 DQM3 178 RD24 177 RD25 176 DVSS 175 RD26 174 DVDD18 173 RD27 172 RD28 171 RD29 170 RD30 169 DVDD3 167 RD31/ASDATA5 168 RA4 166 RA5 165 RA6 164 DVSS 163 RA7 162 DVSS 161 RA8 160 RA9 159 RA11 158 RCLK 156 CKE 157 DVDD3 155 RCLKB 154 RVREF/V_ADIN3 153 DVDD18 152 RA3 151 RA2 150 DVSS 148 RA1 149 RA0 147 RA10 146 BA1 145 DVSS 144 BA0 143 DVDD3 141 RCS 142 RAS 140 CAS 139 RWE 138 DQM1 137 DQS1 136 DVSS 134 RD8 135 RD9 133 RD10 132 RD11 131 DR12 130 RFGND 249 IREF 255 SVDD3 24 RFGC 254 JITFN 231 JITFO 230 LPFOP 238 LPFIN 237 CRTPLP 248 HRFZC 247 LPFIP 236 CEQN 251 RFRPAC 246 S_VREFN 243 ADCVSS 241 S_VREFP 242 S_VCM 240 ADCVDD3 239 PLLVDD3 234 LPFON 235 PLLVSS 232 MC_DATA 224 SPDIF 225 ASDATA4 222 DVDD18 221 ASDATA3 220 ASDATA2 219 RFGND18 226 ASDATA1 218 ASDATA0 217 ACLK 215 ALRCK 213 ABCK 214 DVDD3 204 SPBCK/ASDATA5 211 SPLRCK 210 SPDATA 209 SPMCLK 208 DVDD3 212 HSYNC/V_ADIN2 207 YUV7/ASDATA5 206 VSYNC/V_ADIN1 205 YUV6/R 203 YUV5/B 202 DACVSSA 201 YUV4/G 200 DACVDDA 199 YUV3/CVBS 198 DACVSSB 197 YUV2/C 196 DACVDDB 195 YUV1/Y 194 DACVSSC 193 IDACEXLP 233 USBP 44 FG/V_ADIN8 47 TDI/V_ADIN4 48 TMS/V_ADIN5 49 TCK/V_ADIN6 50 TDO/V_ADIN7 51 AD6 88 IOA21/V_ADIN0 89 DVSS 216 DVSS 223 XTALO 228 XTALI 229 RFVDD18 227 U201 MT1389 C201 105 C202 105 C203 105 C204 105 C205 105(DNS) C206 101 C B A D RFO R201 0R R202 0R R203 0R R204 0R C B A D SUBA SUBB SUBC SUBD E F MDI1 MDI2 LDO2 LDO1 RFOP RFON V2P8 V20 V1P4 FEO TEO TEZISLV OPO OP- OP+ DMO FMO TROPEN C207 104 TRO FOO L201 FBSMT 89V33 USBVDD ADIN TROUT TRIN STBY TRCLOSE V18 A2 A3 A4 A5 A6 A7 A8 A18 A19 C214 104 C215 152 R212 0R R210 18K R211 20K C213 331 C212 331 C211 104 C210 153 R209 15K R208 10K DMSO FMSO TRSO FOSO V1P4 L202 33R 89V33 PWR# A16 A15 A14 A13 A12 A11 A10 A9 A20 PCE# A1 PRD# AD0 AD1 AD2 AD3 AD4 AD5 AD6 A21 AD7 A17 A0 V18 VSCK VSDA VSTB SCL SDA RXD TXD URST# IR DQM0 DQS0 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 DQ15 DQ14 R213 1K DQ9 DQ10 DQ11 DQ12 DQ13 DQ8 RAS# CAS# WE# DQM1 LIMIT CS# BA0 BA1 DMA10 DMA0 DMA1 DMA2 DMA3 DCLKB DMA9 DMA11 DCKE DCLK DMA8 DMA7 DMA6 DMA5 DMA4 DQ31 DQ27 DQ28 DQ29 DQ30 DQ26 DQ25 DQ24 DQM3 DQM2 DQ23 DQ22 DQ17 DQ18 DQ19 DQ20 DQ21 DQ16 R214 510R C216 104 Y0 FS 89V33 V18 L203 FBSMT DACVDD3 DV33 C217 104 Y1 89V33 Y2 Y3 Y4 Y5 Y6 VSYNC# HSYNC# VOICE-DET FS1 FS0 R215 1K ALRCK ABCK ACLK ASDAT0 ASDAT1 ASDAT2 MUTE_DAC V18 RESET# ASPDIF RFV18 XI XO JITFO JITFN C218 474 TC202 10uF/16V DV33 C219 473 C220 473 C221 105 DV33 DV33 VREFN VREFP C222 20pF C223 102 R224 100K C224 104 C225 333 C226 104 C227 104 C228 104 R223 15K C229 104 V1P4 AVDD3 89V33 C233 101 R227 750K JITFN JITFO C234 104 C235 104 C236 104 C237 104 C238 104 C239 104 C240 105 VREFN VREFP C243 104 C242 104 C241 104 C250 104 C251 104 C252 104 C244 104 C245 104 C246 104 C247 104 C249 104 C248 104 C253 104 C254 104 C256 104 C257 104 C258 104 V18 L235 FBSMT L236 FBSMT AVDD3 DV33 2 3 4 1 5 6 8 9 10 7 11 12 14 15 16 13 17 18 20 21 22 19 23 24 XS301 24P0.5mm C312 104 L318 FBSMT L316 FBSMT L312 FBSMT L314 FBSMT L311 FBSMT L310 FBSMT L308 FBSMT L307 FBSMT L306 4.7uH L305 FBSMT L304 FBSMT L303 4.7uH L319 FBSMT L320 FBSMT L321 FBSMT L322 FBSMT L323 FBSMT L324 FBSMT C301 104 TC301 220uF/16V C311 104 AVCC E A V301 2SB1132-S V302 2SB1132-S R301 10R R302 10R TC302 47uF/16V TC303 47uF/16V LDO-AV33 LDO-AV33 LDO2 LDO1 R303 0R L301 FBSMT MDI1 F L317 FBSMT B RFO IOA D C V20 R309 10K R308 100K R311 10K R310 100K V303 2SK3018-S V304 2SK3018-S V305 3904-S IOA AVCC L234 FBSMT C230 104 V18 RFV18 R315 20K R314 10K R316 20K C306 151 C305 104 C302 104 C303 104 R306 1R R307 1R R312 20K R305 1R R304 1R C304 151 VINFC 1 CF1 2 CF2 3 VINSL+ 4 VINSL- 5 VOSL 6 VINFFC 7 GND 30 VCC 8 PVCC1 9 PGND 10 VOSL- 11 VO2+ 12 VOFC- 13 VOFC+ 14 VOTK+ 15 VOTK- 16 VOLD+ 17 VOLD- 18 PGND 19 VNFTK 20 PVCC2 21 GND 29 PREGND 22 VINLD 23 CTK2 24 CTK1 25 VINTK 26 BIAS 27 STBY 28 U302 BA5954 TRSO V1P4 STBY SL+ SL- FMSO VCC GND SP- SP+ V1P4 FOSO DMSO VCC R313 10K R325 510R R327 510R R321 1R R320 150K R319 150K R322 680K R317 680K R318 0R C307 222 ADIN OP- OP+ V1P4 SP- OPO C308 101(DNS) V308 8050D V307 8050D V306 8550D V309 8550D R323 1.5K R324 1.5K R339 10K R326 2.2R\1/4W TC308 47uF/16V TC309 47uF/16V LOAD+ LOAD- VCC TRCLOSE V310 9014-S TROPEN (TRCLOSE1) (TROPEN1) (TRCLOSE1) TROPEN 2 3 4 1 5 XS302 5P2.0mm LOAD- LOAD+ TROUT TRIN C309 104 SP+ SL+ SL- LIMIT 2 3 4 1 5 6 XS303 XS06 L309 FBSMT DV33 R228 0R TDI TMS TCK TDO C231 104 DV33 R340 1R(DNS) C310 222 R329 10K R330 10K DV33 DV33 R331 0R DQS0 R297 0R R298 0R R299 0R PWR# PCE# PRD# DWR# DCE# DRD# AMDAT R2165 0R(DNS) R2166 0R(DNS) C2167 104 C2174 104 C2175 104 GND C255 102 R221 330R C294 102 R277 330R GND C297 102 R281 330R R2164 10K R2160 0R(DNS) C319 105 C320 105 C317 105 C318 105 C321 105 C322 105 AGND VGND C328 105 C329 105 C2175 104 C332 105 C331 105 C330 105 GND C333 105 FS0 -12V 5.2.2 MPEG&SERVO Board 1 - 94 - L232 FBSMT L230 FBSMT L231 FBSMT R229 10K R230 10K(DNS) C262 47pF IR VSCK VSTB VSDA 2 3 4 1 XS202 XS04(DNS) DV33 RXD TXD GND C267 104 C278 102 VD201 1N4148 R252 100K R254 1K R256 33R 5 6 U205C HCU04 URST# DV33 DC/NC 1 RST_/NC 2 WP/RST_ 3 VSS 4 VCC 8 RST/WP 7 SCL 6 SDA 5 U202 AT24C02 SDA SCL C259 104 DV33 R259 680R R260 680R C263 47pF C264 47pF C265 47pF VCC L233 FBSMT L229 FBSMT C266 47pF 2 3 4 1 5 6 7 XS201 XS07 GND C260 102(DNS) C261 102(DNS) 1 2 U205A HCU04 X201 27MHz 3 4 7 14 U205B HCU04 R246 100K C275 27pF C276 27pF R249 10R(DNS) C274 104 C277 10pF(DNS) R245 0R R247 0R XI R244 0R(DNS) XO XTALI R248 0R(DNS) 12 13 U205F HCU04 10 11 U205E HCU04 ASPDIF IEC958 R250 0R(DNS) R251 0R R280 75R C2105 47pF C2104 47pF VGND R276 75R C2102 47pF C2101 47pF VGND R261 75R C290 47pF C289 47pF VGND R274 75R C293 47pF C292 47pF VGND R270 75R C296 47pF C295 47pF VGND R273 75R C299 47pF C298 47pF VGND L243 1.8UH L244 1.8UH L245 1.8UH L246 1.8UH L247 1.8UH L248 1.8UH Y3 Y2 Y1 Y4 Y5 Y6 A0 23 A1 24 A2 25 A3 26 A4 29 A5 30 A6 31 A7 32 A8 33 A9 34 A10/AP 22 A11 35 BA0/A13 20 BA1/A12 21 CLK 38 CKE 37 /CS 19 /RAS 18 /CAS 17 /WE 16 DQML 15 DQMH 39 NC 36 NC 40 VSS 54 VSS 41 VSS 28 DQ0 2 DQ1 4 DQ2 5 DQ3 7 DQ4 8 DQ5 10 DQ6 11 DQ7 13 DQ8 42 DQ9 44 DQ10 45 DQ11 47 DQ12 48 DQ13 50 DQ14 51 DQ15 53 VCC 1 VCC 14 VCC 27 VCCQ 3 VCCQ 9 VCCQ 43 VCCQ 49 VSSQ 6 VSSQ 12 VSSQ 46 VSSQ 52 U211 SDRAM 64M DMA0 DMA1 DMA2 DMA3 DMA4 DMA5 DMA6 DMA7 DMA8 DMA9 DMA10 MA11 BA0 #BA1 SDCLK SDCKE DCS# DRAS# DCAS# DWE# DQM0 DQM1 DQ0 DQ1 DQ2 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ3 SD33 SD33 R231 33R R232 33R DMA11 BA1 C2160 104 L218 FBSMT(DNS) L219 FBSMT(DNS) VOICE-DET OKA GND C268 104 C269 104 C270 104 C271 104 TC208 220uF/16V TC207 220uF/16V +9V -9V DV33 GND AVCC VCC C272 104 2 3 4 1 5 6 8 9 10 7 11 12 13 XS203 XS13 L224 FBSMT(DNS) L225 1K(DNS) MUTEA ASTB MUTE_DAC AGND VGND LFE Cc SR SL Rt Lt VIDEO_COMP VIDEO_U VIDEO_V VIDEO_C VIDEO_Y VCC IEC958 2 3 4 1 5 6 8 9 10 7 11 12 14 15 16 13 17 18 20 21 22 19 23 24 25 26 28 27 XS204 XS28 HSYNC# VSYNC# R234 75R AGND FS1 R236 0R(DNS) R237 0R +9V AGND VIDEO_Y1 R233 75R L228 FBSMT IN 3 GND 1 OUT 2 U209 LM1117MP-1.8(DNS) C273 104 TC209 220uF/16V R242 200R/1% R243 91R/1% V18 DV33 R264 33R R263 33R DCLK DCKE CS# RAS# CAS# WE# FS0 C2158 27pF(DNS) L249 2.7uH(DNS) R2159 0R DV33 VCC VGND VCC VIDEO_U VIDEO_V VCC VIDEO_C VGND VIDEO_Y VCC VGND VIDEO_COMP VCC VIDEO_Y1 VGND VD210 1N4148 VD211 1N4148 VD212 1N4148 VD213 1N4148 VD214 1N4148 VD215 1N4148 VD216 1N4148 VD217 1N4148 VD218 1N4148 VD219 1N4148 VD220 1N4148 VD221 1N4148 VCC VGND VGND C2152 104 C2151 104 C2150 104 VCC VGND R222 0R XI Q204 9015-S RAS 17 CS 18 CAS 16 CKE 34 A0 21 A1 22 A2 23 A3 24 A4 27 A5 28 A6 29 A7 30 A8 31 A9 32 A10 20 BA/A11 19 CLK 35 DQ7 12 DQ6 11 DQ5 9 DQ4 8 DQ3 6 DQ2 5 DQ1 3 DQ0 2 DQ8 39 DQ9 40 DQ10 42 DQ11 43 DQ12 45 DQ13 46 DQ14 48 DQ15 49 VCC 1 VCC 25 VCCQ 13 VCCQ 7 VCCQ 38 VCCQ 44 VSSQ 4 VSSQ 10 VSSQ 41 VSSQ 47 VSS 26 VSS 50 NC 37 NC 33 DQML 14 WE 15 DQMH 36 U203 SDRAM 512*16*2 DMA0 DMA1 DMA2 DMA3 DMA4 DMA5 DMA6 DMA7 DMA8 DMA9 DMA10 BA0 SDCLK SDCKE DCS# DRAS# DCAS# DWE# DQM0 DQM1 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 SD33 RAS 17 CS 18 CAS 16 CKE 34 A0 21 A1 22 A2 23 A3 24 A4 27 A5 28 A6 29 A7 30 A8 31 A9 32 A10 20 BA/A11 19 CLK 35 DQ7 12 DQ6 11 DQ5 9 DQ4 8 DQ3 6 DQ2 5 DQ1 3 DQ0 2 DQ8 39 DQ9 40 DQ10 42 DQ11 43 DQ12 45 DQ13 46 DQ14 48 DQ15 49 VCC 1 VCC 25 VCCQ 13 VCCQ 7 VCCQ 38 VCCQ 44 VSSQ 4 VSSQ 10 VSSQ 41 VSSQ 47 VSS 26 VSS 50 NC 37 NC 33 DQML 14 WE 15 DQMH 36 U204 SDRAM 512*16*2 DMA0 DMA1 DMA2 DMA3 DMA4 DMA5 DMA6 DMA7 DMA8 DMA9 DMA10 BA0 SDCLK SDCKE DCS# DRAS# DCAS# DWE# DQM2 DQM3 DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 SD33 TC210 47uF/16V C280 104 C281 104 C282 104 C283 104(DNS) C2162 104 C2163 104 C2164 104 C2166 104 SD33 L226 FB DV33 C2168 104 C2169 104 C2170 104 C2171 104 C2172 104 C2173 104 TC246 47uF/16V C291 102(DNS) R283 330R(DNS) R332 330R(DNS) DV33 R287 0R(DNS) DDQM2 R290 0R(DNS) DDQM3 R262 0R(DNS) DDBA1 R21810R(DNS) R21820R(DNS) DDQM2 DDQM3 R2183 0R(DNS) BA1 DDBA1 RN201 0R(DNS) RN202 0R(DNS) RN203 0R(DNS) RN204 0R(DNS) RN205 0R(DNS) RN206 0R(DNS) RN207 0R(DNS) RN208 0R(DNS) DDQ0 DDQ1 DDQ2 DDQ3 DDQ4 DDQ5 DDQ6 DDQ7 DDQ8 DDQ9 DDQ10 DDQ11 DDQ12 DDQ13 DDQ14 DDQ15 A6 19 A17 17 RY/BY 15 A18 16 NC 14 A12 4 NC 10 NC 13 A9 7 A15 1 A14 2 A13 3 A11 5 A10 6 A8 8 A19 9 WE 11 RESET 12 A5 20 A4 21 A3 22 A7 18 DQ8 30 DQ9 32 DQ10 34 DQ2 33 DQ3 35 DQ15/A-1 45 DQ12 39 DQ11 36 DQ6 42 A16 48 BYTE 47 Vss 46 DQ7 44 DQ14 43 DQ13 41 DQ5 40 DQ4 38 Vcc 37 DQ0 29 OE 28 Vss 27 DQ1 31 A2 23 A1 24 CE 26 A0 25 U214 8M_FLASH(TSOP) A15 A14 A13 A12 A11 A10 A9 A18 A7 A6 A5 A4 A3 A2 A16 GND A0 AD7 AD14 AD6 AD13 AD5 AD12 AD4 VD AD11 AD3 AD10 AD2 AD9 AD1 AD8 AD0 DRD# GND DCE# A1 A8 UPA[20..0] UPD[15..0] R241 4.7K(DNS) VP R240 4.7K R239 4.7K R238 4.7K VD A17 A19 AA20 AA21 R2140 4.7K R257 0R R258 0R A21 A20 DWR# URST# A0 11 A1 10 A2 9 A3 8 A4 7 A5 6 A6 5 A7 4 A8 42 A9 41 A10 40 A11 39 A12 38 A13 37 A14 36 A15 35 A16 34 A17 3 NC 1 /CE 12 /OE 14 GND2 32 GND1 13 VCC 23 /BYTE 33 A18 2 D15 31 D14 29 D13 27 D12 25 D11 22 D10 20 D9 18 D8 16 D7 30 D6 28 D5 26 D4 24 D3 21 D2 19 D1 17 D0 15 /WE 43 /RESET 44 U215 AM29F800BT-120SC(SOP)(DNS) C2146 104(DNS) R275 0R(DNS) DCE# DRD# URST# A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 A18-U220 A18 R271 0R(DNS) C2145 104(DNS) VD VD R272 0R(DNS) A19 DWR# A0 C279 104 TC237 47uF/16V R255 0R VD DV33 L204 FB(DNS) VCC casecade:use RN201,RN202,RN203,RN204,R287,R290,R2183 NC RN205,RN206,RN207,RN208,R262,R2181,R2182 normal mode : use RN205,RN206,RN207,RN208,R262,R2181,R2182 NC RN201,RN202,RN203,RN204,R287,R290,R2183 DDQ0 DDQ1 DDQ2 DDQ3 DDQ4 DDQ5 DDQ6 DDQ7 DDQ8 DDQ9 DDQ10 DDQ11 DDQ12 DDQ13 DDQ14 DDQ15 2004-6-10 修改日期： C232 20pF TC204 47uF/16V C323 104 C325 105 C324 102 R205 510R 1 2 3 4 8 7 6 5 RN209 33R R2184 10K L205 VCC AVCC FS0 -12V 5.2.3 MPEG&SERVO Board 2 - 95 - R2108 10K +9V R2109 10K R2104 1K VD205 1N4148 VCC R2103 1K AGND VD206 1N4148 -9V MUTE-1 TC235 100uF/10V AGND R2106 10K Q212 2SC1815-YS Q218 1015-S Q219 1015-S SW /C SR# SL# R L TC225 10uF/16V TC226 10uF/16V TC227 10uF/16V TC228 10uF/16V TC229 10uF/16V TC230 10uF/16V R2150 4.7K R2151 4.7K C2127 102 C2126 101 R2149 24K R2141 24K C2120 101 C2121 102 R2143 4.7K R2142 4.7K R2138 4.7K R2139 4.7K C2118 102 C2117 101 R2137 24K R2146 4.7K R2147 4.7K C2124 102 C2123 101 R2145 24K R2134 4.7K R2135 4.7K C2115 102 C2114 101 R2133 24K R2129 24K C2111 101 C2112 102 R2131 4.7K R2130 4.7K +9V +9V +9V +9V +9V +9V 3 2 1 4 8 U219A 4580 5 6 7 4 8 U219B 4580 3 2 1 4 8 U221A 4580 5 6 7 4 8 U220B 4580 3 2 1 4 8 U220A 4580 5 6 7 4 8 U221B 4580 AGND AGND AGND AGND AGND AGND -9V -9V -9V -9V -9V -9V TC224 10uF/16V TC223 10uF/16V TC222 10uF/16V TC221 10uF/16V TC240 10uF/16V TC241 10uF/16V CH-L CH-R CH-SL CH-SR CH-C CH-SW AGND R2123 1K R2121 1K R2120 1K R2117 1K R2124 1K R2122 1K R2119 1K R2118 1K R2111 100K R2112 100K R2113 100K R2114 100K MUTE-1 Q208 2SC1815-YS Q207 2SC1815-YS Q205 2SC1815-YS Q206 2SC1815-YS R2127 1K R2125 1K R2128 1K R2126 1K R2115 100K R2116 100K Q210 2SC1815-YS Q209 2SC1815-YS C2138 104 C2139 104 C2140 104 +9V AGND C2141 104 C2142 104 C2143 104 -9V AGND SDATA2 SDATA1 SDATA0 SLRCK SACLK SBCLK SCL SDA RESET# LL RS RR LS LFE# C# R2132 24K(DNS) C2116 102(DNS) OKA AGND R2156 24K(DNS) R2136 6.8K R2148 6.8K R2152 6.8K R2153 6.8K R2154 6.8K R2155 6.8K C2122 122 C2129 122 C2130 122 C2133 122 C2135 122 C2136 122 VOICE-DET VLS 1 SDIN1 2 SDIN2 3 SDIN3 4 SCLK 5 LRCK 6 MCLK 7 VD 8 GND 9 RST 10 SCL 11 SDA 12 CS 13 VLC 14 MUTEC1 28 AOUTA1 27 AOUTB1 26 MUTEC2 25 AOUTA2 24 AOUTB2 23 VA 22 GND 21 AOUTA3 20 AOUTB3 19 MUTEC3 18 VQ 17 FILT+ 16 M2 15 U207 CS4360 C2154 104 C2153 104 DV33 MUTE1 C2155 104 TC236 10uF/16V(DNS) AVCC C2157 104 TC232 10uF/16V C2156 104 TC233 10uF/16V AGND R282 0R MUTE2 MUTE3 RR RS LL LS LFE# C# MUTE1 Q211 1015-S R2102 1K R2101 10K VD207 1N4148 VD208 1N4148 VD209 1N4148 MUTE2 MUTE3 TC238 100uF/10V VCC ACLK SACLK R294 33R R295 33R ABCK SBCLK ASDAT0 SDATA0 SDATA1 SDATA2 ASDAT1 ASDAT2 R2107 0R(DNS) AGND Cc LFE SL AGND SR Rt Lt MUTEA C287 104 C284 104 DV33 SACLK SBCLK AMDAT SLRCK R289 10K C286 105 C288 102 R2180 150R RESET# OKA# DV33 C285 105 R279 0R(DNS) R268 0R(DNS) R269 0R(DNS) R278 0R(DNS) DV33 R288 10K(NC) RST 1 SDA 2 SCLK 3 LRCK 4 MCLK 5 DIF1 6 DIF0 7 DEM0 8 MUTEC 16 AOUTA 15 VA 14 AGND 13 AOUTB 12 REF-GND 11 VQ 10 FILT+ 9 U206 CS4340(DNS) R284 0R(DNS) R285 0R(DNS) R286 0R(DNS) RESET# SDATA0 SBCLK SLRCK SACLK MUTE1 LL AVCC AGND RR AGND VQ# FILT+ VQ# FILT+ C326 105 C327 105 RN210 33R SLRCK ALRCK R2105 10K R207 0R R206 0R R225 24K(DNS) R226 24K(DNS) C208 102(DNS) AGND OKA M0 1 MCLK 2 VL 3 SDOUT 4 GND 5 VD 6 SCLK 7 LRCLK 8 RST 9 AINL 10 VQ 11 AINR 12 VA 13 REF_GND 14 FILT+ 15 M1 16 U210 CS5340 TC220 47uF/16V C343 104 C344 104 C345 104 R218 100K R217 100K R216 100K R219 100K DV33 DV33 OKL OKR DV33 DV33 OKL OKR AGND VGND VD222 1N4148 VD223 1N4148 OKA OKA# R2185 10K R2187 20K R2186 1K FS0 -12V 5.2.4 MPEG&SERVO Board 3 - 96 - -9V GND +3.3V +5V GND +9V SA+5V GND MIC-DET OKA AGND AGND AGND OKA +3.3V -21V 2 3 4 1 5 6 8 9 10 7 11 12 13 CN501 13P2.0mm(NC) FL+ FL- -9V +9V MIC-DET GND +5V GND U503 LM431A C515 104 L505 10uH/1A L507 10uH/2A BC501 ~275V 104 L501 JLB1153 33uH +8 -0% F501 T1.6AL250V R K A ! ! ! R509 10K/1% R508 3.3K/1% R506 330R R505 33R R503 39K/2W ! ! ! U502 PH817 TC502 47uF/50V TC501 47uF/400V D505 HER107 C502 103/1KV C503 101/1KV(NC) L503 FB FL+ FL- -21V BC503 ~250V 221 +9V C504 104 TC504 470uF/25V TC511 100uF/16V(NC) TC512 47uF/50V TC506 1000uF/10V TC505 1000uF/10V D508 HER105 TC503 470uF/25V R511 1.5K R507 10K(NC) R501 680K 1/2W ! ! ! D510 HER303 ZD501 5.1V/0.5W D506 HER105 D511 HER105 D512 HER105(NC) +3.3V TC507 100uF/16V D503 1N4007 D502 1N4007 D504 1N4007 D501 1N4007 C508 104 C511 104 -9V +5V ZD502 10V/0.5W 1 2 BCN503 ~220V L509 10uH/1A TC508 1000uF/10V(nc) SA+5V To Mpeg Board To Microphone Board 2 3 4 6 7 10 11 9 12 13 14 15 16 T501 BCK-28-519S L508 10uH/2A TC510 1000uF/10V TC514 1000uF/10V D513 SF34 C510 104 BC504 ~250V 221(NC) BC505 ~250V 221 R510 470R(NC) ! 2.5V R502 1K JP501 0R 2 3 4 1 5 6 8 9 10 7 11 CN502 11P2.0mm R515 220R Q501 8550D BCN502 SW-SPST C512 104 ! ! 1 2 BCN501 ~220V ! F502 T1.6AL250V ! R504 470R(NC) R5161K(NC) C518 104(NC) R517 1K(NC) C519 104(NC) Ipk 4 Vstr 5 VCC 2 Vfb 3 D 6 D 7 D 8 Gnd 1 U501 FSDH321 R512 10K(NC) C506 104 ZD503 5.1V/0.5W(NC) C507 473(NC) C513 104(NC) C514 104 FL+ JP513 0R(NC) JP503 0R R518 680K 1/2W 5.2.5 Power Board - 97 - R621 10R TC615 47uF/16V C601 104 R622 10R TC616 47uF/16V C602 104 +9V +9VA -9V -9VA -9V +9V AGND OK DET 2 3 4 1 5 XS601 5P2.0mm TC620 100uF/16V C620 104(NC) R634 4.3K R631 3.9K TC618 47uF/16V C619 104(NC) R632 3.9K R633 4.3K TC617 47uF/16V H_L R638 22R(NC) R637 22R(NC) OUT1 1 IN1- 2 IN1+ 3 GND 4 VDD 8 OUT2 7 IN2- 6 IN2+ 5 U603 TDA1308 R629 3.3K R630 3.3K AGND R636 10K R635 10K C616 101 C617 101 H_R C622 104(NC) C621 104(NC) 2 3 1 JK601 PHONEJACK R625 1K R627 56K R626 1K R628 56K AGND AGND TC619 100uF/16V 1 2 3 XS603 3P2.0 A5V A5V C604 1uF R601 330R ZD601 6.2V/0.5W Q601 8050D C623 104 A5V AGND TC601 1000uF/10V C605 104 TC614 47uF/16V R605 10k R607 10k R611 5.1K C603 103 R604 560R 5 6 7 U601B 4558 3 2 1 8 4 U601A 4558 C607 101 R613 5.1K R606 10K R610 10K C606 101 R608 1K C608 102 R602 5.1K -9VA R617 100K L601 FBSMT +9VA OK C609 105 C611 105 C612 105 C613 105(DNS) DET R623 5.1K A5V TC605 22uF/16V R603 22K OK Q602 8050D 4 2 1 3 MIC601 PHONEJACK4 5.2.6 MIC Board - 98 - R703 68R VIN 1 VCC 2 GND 3 JK705 OPTICAL VCC Pr L710 FBSMT L709 FBSMT L708 FBSMT L707 FBSMT Y1 Pb AGND B G R CC VGND VGND LFE CC SR SL R L VIEDO Pb Y1 Pr VCC SPDIF VIEDO LFE SL R L SR L701 FB L702 FB L703 FB L704 FB L705 FB L706 FB C701 102 C702 102 C703 102 C704 102 C705 102 C706 102 C711 104 Y- Pb- SPDIF R706 2.2R TC701220uF 2 3 4 1 5 6 8 9 10 7 11 12 14 15 16 13 17 18 20 21 22 19 23 24 25 26 28 27 XS701 nCON28 TC702 1000uF/16V TC703 220uF/16V PDAT1 TC704 220uF/16V L712 FBSMT L711 FBSMT Pr- 1 2 3 4 JK703 S-VIDEO 5 7 6 JK702 V-OUT R701 220R C710 104 R702 100R SPDIF Y C TC705 220uF/16V TC706 220uF/16V Y C PDAT0 C715 104(DNS) C707 105 VGND VGND VGND R708 0R R709 0R R710 0R R711 0R R712 0R R713 0R 1 2 3 JK706 AV_JACK 5 3 1 2 4 JK704 AV_JACK 1 2 3 JK707 AV_JACK 5 3 1 2 4 JK708 AV_JACK AGND AGND AGND C716 20pF C717 20pF C718 20pF C719 20pF C720 20pF C721 20pF L# R# C712 102 C713 102 1 2 3 JK709 AV_JACK AGND L# R# A(B)OUT 1 A(A)OUT 3 RETURN 5 BLUE I/O 7 RETURN 9 GREEN I/O 11 RETURN 13 RED I/O 15 RETURN 17 V-OUT 19 GND 21 A(B)IN 2 A-COM 4 A(A)IN 6 FUNC SW 8 CONT 10 NC 12 RETURN 14 BLK I/O 16 TRTURN 18 V-IN 20 JK701 VJS3921 R704 4.7K R705 4.7K V701 8050 V702 8050 R707 33R R717 330R R718 2.2K +10V AGND PDAT0 V703 8050(DNS) R719 1K(DNS) R720 2.2K(DNS) PDAT2 C708 102 VGND VCC AGND AGND VCC VGND VGND L713 FCM L714 FCM R722 0R(DNS) AGND VGND C723 102 C724 102(DNS) C725 104 C726 104 AGND C728 104 R714 2.2K R715 47K C727 102 ZD701 5.1V/0.5W ZD702 5.1V/0.5W ZD703 5.1V/0.5W ZD704 5.1V/0.5W R716 0R(DNS) PDAT2 PDAT1 +10V RGB_CVBS RGB_CVBS AV_TV AV_TV R L Pb- AGND Y- Pr- VIEDO- VIEDO- SCART 8PIN 9.5V-12V AV 4:3 SCART 8PIN 5.0V-8.0V AV 16:9 SCART 8PIN 0.0V-2.0V TV MODE SCART 16PIN 0 CVBS MODE SCART 16PIN 1 RGB MODE D701 IN4148 D702 IN4148 AGND VGND 1 2 3 XS702 XS03 AGND L R 5.2.7 AV OUT Board - 99 - MATERIAL CODE MATERIAL NAME SPECIFICATIONS LOCATION 0000289 CARBON FILM RESISTOR 1/4W4.7K±5% SHAPED 10 R704,R705 0000278 CARBON FILM RESISTOR 1/4W330O±5% SHAPED 10 R717 0000273 CARBON FILM RESISTOR 1/4W33O±5% SHAPED 10 R707 0000286 CARBON FILM RESISTOR 1/4W2.2K±5% SHAPED 10 R714 0090001 SMD RESISTOR 1/16W 0O±5% 0603 R708~R713 0090002 SMD RESISTOR 1/16W 2.2O±5% R706 0090238 SMD RESISTOR 1/16W 68O±5% 0603 R703 0090181 SMD RESISTOR 1/16W 100O±5% 0603 R702 0090008 SMD RESISTOR 1/16W 220O±5% R701 0090017 SMD RESISTOR 1/16W 2.2K±5% 0603 R718 0090029 SMD RESISTOR 1/16W 47K±5% 0603 R715 0310085 SMD CAPACITOR 50V 20P±5% NPO 0603 C716~C721 0310066 SMD CAPACITOR 50V 102±10% 0603 C701~C706,C708,C712,C713,C723,C725,C7 26,C727 0310207 SMD CAPACITOR 50V104±20% 0603 C710,C711,C728 0310234 SMD CAPACITOR 16V 105 +80%-20% 0603 C707 0390057 MAGNETIC BEADS INDUCTOR RH354708 L704,L705,L706 0390095 SMDMAGNETIC BEADS FCM1608K-221T05 L701~L703,L707~L714 0700007 SMD DIODE 1N4148 D701,D702　　　　① 0700001 SMD DIODE LS4148 D701,D702　　　　① 0700002 SMD DIODE LL4148 D701,D702　　　　① 0700004 SMD VOLTAGE REGULATOR DIODE 5.1V±5% 1/2W ZD701~ZD704 0780050 TRIODE S8050D V701,V702 1090045 ELECTRO-OPTICTRANSFORMER TX179ATW JK705　　　　② 1090024 ELECTRO-OPTICTRANSFORMER TX179AT JK705　　　　② 1910132 TERMINAL SOCKET AV2-8.4(WHITE、WHITE) JK707 1910208 TERMINAL SOCKET AV2-8.4(RED、WHITE) JK709 1910133 TERMINAL SOCKET AV2-8.4(RED、BLACK) JK706 1910131 TERMINAL SOCKET AV3-8.4(RED、WHITE、RED) JK708 AV BOARD PCB SEMI-FINISHED PRODUCT 5448071 DV717SI(RU) SILVER [1389C] Chapter six BOM List - 100 - MATERIAL CODE MATERIAL NAME SPECIFICATIONS LOCATION 1860029 SCART SOCKET SCART-01 JK701 1910006 TERMINAL SOCKET S-VIDEO JK703 1910081 TERMINAL SOCKET AV1-8.4-5G-2 YELLOW JK702 1910057 TERMINAL SOCKET AV3-8.4-6G-2 JK704 1940140 CABLE SOCKET 14P 1.0mm STRAIGHT DUAL LINE PLUG XS701 1940026 SOCKET 3P 2.0mm XS702 2100003 CONNECTED CORDS F 0.6 SHAPED 7.5mm JP701,JP703,JP705,JP706,JP708~JP713,JP 715,JP724,JP726,JP704 2100010 CONNECTED CORDS F 0.6 SHAPED 5mm JP702,JP716,JP718,JP720~JP722,JP725 2100004 CONNECTED CORDS F 0.6 SHAPED 10mm JP707,JP714,JP717,JP719,JP723 3870115 GROUND CHIP OF POWER BOARD AB903 G701,G702 1564185 PCB 7DV717-0 0090001 SMD RESISTOR 1/16W 0O±5% 0603 R201~R204,R212,R222,R228,R236,R245,R2 47,R251,R255,R257,R258,R282,R297~R299, R303,R318,R331,R2159,R234,R269,R279,R2 160 0090006 SMD RESISTOR 1/16W 75O±5% 0603 R233,R261,R270,R273,R274,R276,R280 0090272 SMD RESISTOR 1/16W 1O±5% 0603 R304~R307,R321 0090003 SMD RESISTOR 1/16W 10O±5% 0603 R301,R302 0090005 SMD RESISTOR 1/16W 33O±5% 0603 R231,R232,R256,R263,R264,R294,R295,L20 2 0090232 SMD RESISTOR 1/16W 150O±5% 0603 R2180 0090009 SMD RESISTOR 1/16W 330O±5% 0603 R221,R277,R281 0090013 SMD RESISTOR 1/16W 680O±5% 0603 R259,R260 0090014 SMD RESISTOR 1/16W 1K±5% 0603 R213,R215,R254,R2102~R2104,R2117~R21 28,R2186,L225 0090016 SMD RESISTOR 1/16W 1.5K±5% 0603 R323,R324 0090249 SMD RESISTOR 1/16W 510O±5% 0603 R205,R214,R325,R327,R283 0090019 SMD RESISTOR 1/16W 4.7K±5% 0603 R238~R240,R2130,R2131,R2134,R2135,R21 38~R2140,R2142,R2143,R2146,R2147,R215 0,R2151 0090021 SMD RESISTOR 1/16W 6.8K±5% 0603 R2136,R2148,R2152~R2155 0090023 SMD RESISTOR 1/16W 10K±5% 0603 R208,R229,R309,R311,R313,R314,R329,R33 0,R339,R2101,R2106,R2108,R2109,R2164,R 2184,R289,R2105,R2185 0090024 SMD RESISTOR 1/16W 15K±5% 0603 R209,R223 0090025 SMD RESISTOR 1/16W 20K±5% 0603 R211,R312,R315,R316,R2187 DV717SI(RU) SILVER [1389C] DECODE BOARD PCB SEMI-FINISHED PRODUCT: 2521S-0 - 101 - MATERIAL CODE MATERIAL NAME SPECIFICATIONS LOCATION 0090255 SMD RESISTOR 1/16W 24K±5% 0603 R2129,R2133,R2137,R2141,R2145,R2149 0090188 SMD RESISTOR 1/16W 18K±5% 0603 R210 0090197 SMD RESISTOR 1/16W 150K±5% 0603 R319,R320 0090211 SMD RESISTOR 1/16W 680K±5% 0603 R317,R322 0090609 PRECISION SMD RESISTOR 1/16W 100O±1% 0603 R243 0090626 PRECISION SMD RESISTOR 1/16W 200O±1% 0603 R242 0090319 PRECISION SMD RESISTOR 1/16W 750K±1% 0603 R227 0090034 SMD RESISTOR 1/16W 100K±5% 0603 R224,R246,R252,R308,R310,R2111~R2116, R216~R219 0100019 SMD RESISTOR NETWORKS 1/16W 33O±5% 8P RN209,RN210 00003759 CARBON FILM RESISTOR 1/4W2.2O±5% BELT R326 02604379 CD CD11 16V10U±20%5×11C5 BELT TC202,TC221~TC230,TC232,TC233,TC240, TC241 02601819 CD CD11 16V220U±20%6×12 C5 BELT TC207~TC209,TC301 02600029 CD CD11 16V47U±20%5×11 C5 BELT TC204,TC210,TC237,TC246,TC302,TC303,T C308,TC309 02601889 CD CD11 16V100U±20%6×12 C5 BELT TC235,TC238 1940023 SOCKET 7P 2.0mm XS201 0310085 SMD CAPACITOR 50V 20P ±5% NPO 0603 C222,C232 0310190 SMD CAPACITOR 50V 27P ±5% NPO 0603 C275,C276 0310045 SMD CAPACITOR 50V 47P ±5% NPO 0603 C262~C266,C289,C290,C292,C293,C295,C2 96,C298,C299,C2101,C2102,C2104,C2105 0310047 SMD CAPACITOR 50V 101 ±5% NPO 0603 C206,C233,C2111,C2114,C2117,C2120,C21 23,C2126,C288 0310051 SMD CAPACITOR 50V 331 ±5% NPO 0603 C212,C213 0310048 SMD CAPACITOR 50V 151 ±5% NPO 0603 C304,C306 0310207 SMD CAPACITOR 50V104 ±20% 0603 C207,C211,C214,C216,C217,C224,C226~C2 31,C234~C239,C241~C254,C256~C259,C26 7~C274,C279~C282,C301~C303,C305,C309, C311,C312,C323,C2138~C2143,C2150~C21 57,C2160,C2162~C2164,C2166~C2175,C284 ,C287,C343~C345　　　　③ 0310543 SMD CAPACITOR 50V 104 ±10% X7R 0603 C207,C211,C214,C216,C217,C224,C226~C2 31,C234~C239,C241~C254,C256~C259,C26 7~C274,C279~C282,C301~C303,C305,C309, C311,C312,C323,C2138~C2143,C2150~C21 57,C2160,C2162~C2164,C2166~C2175,C284 ,C287,C343~C345　　　　③ 0310234 SMD CAPACITOR 16V 105 +80%-20% 0603 C201~C204,C221,C240,C317~C322,C325,C3 28~C333,C326,C327,C285,C286 0310066 SMD CAPACITOR 50V 102 ±10% 0603 C223,C255,C278,C294,C297,C2112,C2115,C 2118,C2121,C2124,C2127 0310231 SMD CAPACITOR 50V 122 ±10% 0603 C2122,C2129,C2130,C2133,C2135,C2136 - 102 - MATERIAL CODE MATERIAL NAME SPECIFICATIONS LOCATION 0310067 SMD CAPACITOR 50V 152 ±10% 0603 C215 0310068 SMD CAPACITOR 50V 222 ±10% 0603 C307,C310 0310201 SMD CAPACITOR 50V 153 ±10% 0603 C210 0310055 SMD CAPACITOR 16V 333 ±10% 0603 C225 0310056 SMD CAPACITOR 16V 473 ±10% 0603 C219,C220 0310362 SMD CAPACITOR 16V474 +80%-20% 0603 C218 0390355 SMD INDUCTOR 4.7UH ±10% 1608 L303,L306 0390096 SMD INDUCTOR 1.8UH ±10% 1608 L243~L248 03900579 MAGNETIC BEADS INDUCTOR RH354708 BELT L226 0390095 SMDMAGNETIC BEADS FCM1608K-221T05 L201,L203,L228~L236,L301,L304,L305,L307 ~L312,L314,L316~L324,L218,L219 0960020 CRYSTAL OSCILLATOR 27.00MHz 49-S X201 1632368 PCB 2521S-0 0700007 SMD DIODE 1N4148 VD201,VD205~VD223　　　　④ 0700001 SMD DIODE LS4148 VD201,VD205~VD223　　　　④ 0700002 SMD DIODE LL4148 VD201,VD205~VD223　　　　④ 07800509 TRIODE S8050D BELT V307,V308 07800499 TRIODE S8550D BELT V306,V309 0780062 SMD TRIODE 9014C V310 0780063 SMD TRIODE 9015C Q204 0780197 SMD TRIODE C1815 Q205~Q210,Q212 0780198 SMD TRIODE 2SA1015 Q211,Q218,Q219 0780040 SMD TRIODE 3904(100-300) SOT-23 V305 0780193 SMD TRIODE 2SK3018 V303,V304 0780115 SMD TRIODE 2SB1132 V301,V302 0880185 IC NJM4558M SOP U219,U220,U221　　　　⑤ 0880562 IC 4580 SOP U219,U220,U221　　　　⑤ 0880361 IC 4558 SOP U219,U220,U221　　　　⑤ 0880322 IC MM74HCU04M SOP U205　　　　⑥ 0880513 IC HCU04 SOP U205　　　　⑥ 0881415 IC HY57V641620HGT-7 TSOP U211　　　　⑦ 0881872 IC KSV464P4JA-70 TSOP U211　　　　⑦ 0881182 IC LM1117MP-ADJ SOT-223 U209 - 103 - MATERIAL CODE MATERIAL NAME SPECIFICATIONS LOCATION 0881057 IC CS4360 SSOP U207 0882353 IC CS5340 TSSOP U210 0881031 IC 24C02N SOP U202 0882257 IC MT1389FE/C (C VERSION) QFP U201 0881378 IC BA5954FP HSOP U302 1940140 CABLE SOCKET 14P 1.0mm STRAIGHT DUAL LINE PLUG XS204 1940024 SOCKET 5P 2.0mm XS302 1940005 SOCKET 6P 2.0mm XS303 1940098 SOCKET 11P 2.5mm XS203 1940094 CABLE SOCKET 24P 0.5mm SMD WITH CLASP XS301 0090001 SMD RESISTOR 1/16W 0O±5% 0603 R403 0310207 SMD CAPACITOR 50V104 ±20% 0603 C401　　　　⑧ 0310543 SMD CAPACITOR 50V 104 ±10% X7R 0603 C401　　　　⑧ 0310048 SMD CAPACITOR 50V 151 ±5% NPO 0603 C402,C403 0310376 SMD TANTALUMCAPACITOR NRS10V47U±20%3528(B2) TC401 0700002 SMD DIODE LL4148 VD401,VD402,VD403　　　　⑨ 0700001 SMD DIODE LS4148 VD401,VD402,VD403　　　　⑨ 0700007 SMD DIODE 1N4148 VD401,VD402,VD403　　　　⑨ 0700056 SMD DOUBLE DIODE MMBD4148SE SOT-23 D401~D410 0970003 CERAMIC RESONATOR 455E X401 0881587 IC PT2222A SOP U401 1940150 SOCKET 4P1.0mm SMD XS401 0780129 SMD TRIODE 8550D V401 0090023 SMD RESISTOR 1/16W 10K±5% 0603 R401 1632060 PCB 4373-3 0090003 SMD RESISTOR 1/16W 10O±5% 0603 R621,R622 0090009 SMD RESISTOR 1/16W 330O±5% 0603 R601 0090012 SMD RESISTOR 1/16W 560O±5% 0603 R604 DV717SI(RU) SILVER [1389C] MAIN PANEL PCB SEMI-FINISHED PRODUCT 5444529 DV717SI(RU) SILVER [1389C] OK BOARD PCB SEMI-FINISHED PRODUCT 5448072 - 104 - MATERIAL CODE MATERIAL NAME SPECIFICATIONS LOCATION 0090014 SMD RESISTOR 1/16W 1K±5% 0603 R608,R625,R626 0090018 SMD RESISTOR 1/16W 3.3K±5% 0603 R630 0090224 SMD RESISTOR 1/16W 3.9K±5% 0603 R631, R632 0090184 SMD RESISTOR 1/16W 4.3K±5% 0603 R633, R634 0090020 SMD RESISTOR 1/16W 5.1K±5% 0603 R602, R613, R623 0090023 SMD RESISTOR 1/16W 10K±5% 0603 R606,R610,R635,R636 0090026 SMD RESISTOR 1/16W 22K±5% 0603 R603 0090030 SMD RESISTOR 1/16W 56K±5% 0603 R627,R628 0090034 SMD RESISTOR 1/16W 100K±5% 0603 R617 0310047 SMD CAPACITOR 50V 101 ±5% NPO 0603 C606, C607, C616, C617 0310066 SMD CAPACITOR 50V 102 ±10% 0603 C608 0310072 SMD CAPACITOR 50V 103 ±10% 0603 C603 0310207 SMD CAPACITOR 50V104 ±20% 0603 C601,C602,C604,C605,C623　　　　⑩ 0310222 SMD CAPACITOR 25V 104 ±20% X7R 0603 C601,C602,C604,C605,C623　　　　⑩ 0310543 SMD CAPACITOR 50V 104 ±10% X7R 0603 C601,C602,C604,C605,C623　　　　⑩ 0310234 SMD CAPACITOR 16V 105 +80%-20% 0603 C609,C611,C612 0000339 CARBON FILM RESISTOR 1/6W3.3K±5% SHAPED 7.5 R629 0000134 CARBON FILM RESISTOR 1/6W5.1K±5% SHAPED 7.5 R611 0260094 CD CD110 16V47U±20%5×11 2 TC614 ~ TC618　　　　⑾ 0260025 CD CD11 16V47U±20%5×11 2 TC614 ~ TC618　　　　⑾ 0260200 CD CD11C 16V47U±20%5×7 2 TC614 ~ TC618　　　　⑾ 0260327 CD GZ16V100U±20%6×12 2.5 TC619, TC620　　　　⑿ 0260027 CD CD11 16V100U±20%6×12 2.5 TC619, TC620　　　　⑿ 0260096 CD CD110 16V100U±20%6×12 2.5 TC619, TC620　　　　⑿ 0260175 CD CD11C 16V100U+20%-15%6×7 2.5 TC619, TC620　　　　⑿ 0260201 CD CD11C 16V100U±20%6×7 2.5 TC619, TC620 0260021 CD CD11 16V22U±20%5×11 2 TC605　　　　⒀ 0260037 CD CD11 25V22U±20%5×11 2 TC605　　　　⒀ 0390095 SMDMAGNETIC BEADS FCM1608K-221T05 L601 0260237 CD CD11 10V1000U±20%8×14 3.5 TC601　　　　⒁ 0260352 CD GS 10V1000U±20%8×14 3.5 TC601　　　　⒁ 0700020 SMD VOLTAGE REGULATOR DIODE 6.2V ±5% 1/2W ZD601 - 105 - MATERIAL CODE MATERIAL NAME SPECIFICATIONS LOCATION 0780085 SMD TRIODE 8050D Q601,Q602 0880124 IC NJM4558D DIP U601　　　　⒂ 0880308 IC KA4558 DIP U601　　　　⒂ 0881537 IC TDA1308 SOP U603 1980018 MICROPHONE SOCKET CK3-6.35-24 MIC601 1940024 SOCKET 5P 2.0mm XS601 2121631 FLAT CABLE 3P120 2.0 2 PIN,WITH NEEDLE,TOGETHER DIRECTION XS603 1564176 PCB 6717-0 2100010 CONNECTED CORDS F 0.6 SHAPED 5mm JP601 ~ JP609 1980046 EARPHONE SOCKET ST-301-030-100 JK601 3870115 GROUND CHIP OF POWER BOARD AB903 G601, G602 2100010 CONNECTED CORDS F 0.6 SHAPED 5mm JP503,JP510,JP520 2100003 CONNECTED CORDS F 0.6 SHAPED 7.5mm JP501,JP505,JP509,JP514,JP518 2100004 CONNECTED CORDS F 0.6 SHAPED 10mm JP511,JP517 0010337 METAL OXIDE FILM RESISTOR 2W180K±5% SHAPED FLAT 15×7 R518 0000273 CARBON FILM RESISTOR 1/4W33O±5% SHAPED 10 R505 0000362 CARBON FILM RESISTOR 1/4W220O±5% SHAPED 10 R515 0000278 CARBON FILM RESISTOR 1/4W330O±5% SHAPED 10 R506 0000279 CARBON FILM RESISTOR 1/4W470O±5% SHAPED 10 R510 0000284 CARBON FILM RESISTOR 1/4W1.5K±5% SHAPED 10 R511 0000283 CARBON FILM RESISTOR 1/4W1K±5% SHAPED 10 R502 0010115 METAL FILM RESISTOR 1/4W3.3K±1% SHAPED 10 R508 0010064 METAL FILM RESISTOR 1/4W10K±1% SHAPED 10 R509,R512 0010159 METAL OXIDE FILM RESISTOR 2W39K±5%SHAPED FLAT 15×7 R503 0070016 HIGH PRESSURE RESISTOR @1/2W680K±5% VDE R501 0200138 PORCELAINCAPACITOR 50V 104±20% 5mm C504,C508,C510~C512,C515 0210023 TERYLENECAPACITOR 100V 223±10% 5mm C506 0200359 CERAMICCAPACITOR @250V 221±10% 10mm VDE BC503,BC505　　　　⒃ 0200376 CERAMIC CAPACITOR @250V 221 ±20% 10mm VDE BC503,BC505　　　　⒃ 0200223 PORCELAINCAPACITOR 1000V 101 +80%-20% 7.5mm C503　　　　⒄ DV717SI(RU) SILVER [1389C] POWER BOARD PCB SEMI-FINISHED PRODUCT 5448070 - 106 - MATERIAL CODE MATERIAL NAME SPECIFICATIONS LOCATION 0200228 PORCELAINCAPACITOR 1000V 101±10% 7.5mm C503　　　　⒄ 0200224 PORCELAINCAPACITOR 1000V 103 +80%-20% 7.5mm C502 0210204 ANTI-JAMMINGCAPACITOR @MKP61 X2 275VAC 104M 15 UL BC501　　　　⒅ 0210207 TERYLENECAPACITOR @275V 104±20% 15mm VDE BC501　　　　⒅ 0210206 TERYLENECAPACITOR @275V104±10%15mm VDE BC501　　　　⒅ 0260557 CD CD11T 16V100u±20%6×12 2.5 TC507,TC511 0260686 CD CD11T 25V220U±20%8×12 C5 TC504 0260559 CD CD11T 50V47u±20%6×12 2.5 TC512 0260564 CD CD11T 50V10U±20%5×11 2 TC502 0260560 CD CD11T 10V1000u±20%8×16 3.5 TC506,TC510 0260341 CD ZT 400V22µ±20%f 16×20 7.5 TC501 0260726 CD CD288H 10V1000U±20%8×16 C5 TC505,TC514 0260659 CD CD288H 35V220U±20%10×12 5 TC503 0410010 CHOKE COIL VERTICAL 10UH 1A 5mm L505,L509 0410011 CHOKE COIL VERTICAL 10UH 2A 5mm L507,L508 0570013 DIODE HER105 D506,D508,D511,D512 0570018 DIODE HER303 SHAPED R 17.5×8mm D510 0570077 DIODE SF34 DO-27 SHAPED R 17.5×8 D513 0570014 DIODE HER107 D505 0570005 DIODE 1N4007 D501~D504 0580006 VOLTAGE REGULATOR DIODE 5.1V 1/2W ZD501 0580032 VOLTAGE REGULATOR DIODE 10V±5% 1/2W ZD502 0882551 IC FSDH321 DIP U501 0880863 IC HA17431VP TO-92 U503　　　　⒆ 0882041 IC MIK431C TO-92 U503　　　　⒆ 0882462 IC AZ431AZ-A TO-92 U503　　　　⒆ 0390057 MAGNETIC BEADS INDUCTOR RH354708 L503 1080011 PHOTOELECTRIC COUPLER HS817 U502　　　　⒇ 1080006 PHOTOELECTRIC COUPLER PC817 U502　　　　⒇ 0780049 TRIODE S8550D Q501 1000022 POWER GRID FILTER JLB1153 33uH +∞-0% L501 0460560 SWITCH POWERTRANSFORMER @BCK-25-0091 CQC T501 - 107 - MATERIAL CODE MATERIAL NAME SPECIFICATIONS LOCATION 1940077 SOCKET 11P 2.0mm CN502 1940045 SOCKET 2P 8.0mm 2# BCN501 1940005 SOCKET 6P 2.0mm CN501 2300039 FUSE @T1.6AL 250V VDE F501　　　　（21） 2300049 FUSE @T1.6AL 250V 3.6×10 VDE F502　　　　（21） 3870115 GROUND CHIP OF POWER BOARD AB903 G501,G502,G503,G505 1564298 PCB @5DV717-0 UL 0310048 SMD CAPACITOR 50V 151 ±5% NPO 0603 C802,C803 0630009 EMISSION PIPE TSAL4400 LED801 0700007 SMD DIODE 1N4148 D801~D803　　　　（22） 0700001 SMD DIODE LS4148 D801~D803　　　　（22） 0700002 SMD DIODE LL4148 D801~D803　　　　（22） 0780130 SMD TRIODE STC3265 Q801 0880220 IC PT2222 SOP U801　　　　（23） 0882379 IC S0102B SOP U801　　　　（23） 0970003 CERAMIC RESONATOR 455E X801 4000038 SELF-TAPPING SCREW PB 2.3×6 COLOR ZINC FOR CONNECTING UPPER COVER AND LOWER COVER 0090272 SMD RESISTOR 1/16W 1O±5% 0603 R801 1564219 PCB 8516SI-2 3031789 REMOTE CONEROLLERSURFACE CASING RC026-01R BLACK 3041399 BOTTOMCASING OF REMOTE CONTROL RC026 BLACK 2# 3051319 BATTERYCASE DOOR OF REMOTE CONTROL RC026 BLACK 2# 3051273 GLASS OF REMOTE CONTROLLER RC026 MING PURPLE 3850124 ANODE SPRING RC026 3850125 CATHODE SPRING RC026 3850126 ANODE/CATHODE SPRING RC026 4631016 CONDUCT GLUE OF REMOTE CONTROL RC026-01R 3# 5070070 GLUE BAG 85×250 DV717SI(RU) SILVER [1389C] REMOTE CONEROLLER 5471656 DV717SI(RU) SILVER [1389C] - 108 - MATERIAL CODE MATERIAL NAME SPECIFICATIONS LOCATION 1563444 PCB 9973-2 2121417 FLAT CABLE 4P 230 2.0 2 PIN, WITH L NEEDLE,TOGETHER DIRECTION XS901 1340064 LIGHT TOUCH RESTORE SWITCH KFC-A06-2WB L3.8 K901 0200307 POLYPROPYLENECAPACITOR 50V 101±10% SHAPED 5mm C901,C902 2100003 CONNECTED CORDS F 0.6 SHAPED 7.5mm JP901~JP902 0620076 RADIATION DIODE 3B3HC COLORLESS WITH BLUE LED901 3028526 LED BRACKET（LEFT） DV973 FASTNESS LED901 0881650 IC 29LV160BE-70PFTN TSOP U214　　　　（24） 0881651 IC M29W160EB 70N6 TSOP U214　　　　（24） PROGRAM FLASH ROMDV717SIRU-0A(16M) 0911627 SUBSIDIARY PANE PCB SEMI-FINISHED PRODUCT 5445111 DV717SI(RU) SILVER [1389C] - 109 - - 110 - This machine is mainly composed of decode board, power board, AV output board, MIC board and main panel. Decode board: includes decode, servo, audio and video output circuit. Working principle is the same with that of DV717SI. Power board: provides working voltage for each circuit and output voltage has 9V +5V +3.3V SA+5V, etc. AV output board: includes SCART, component video, optical and coaxial output terminal, videi output terminal, S-Video. Working principle is the same with that of DV717SI. MIC board: with dual-channel microphone input function, and headphone amplifying circuit deletion. Main panel: button function control, remote control and LCD display. Remark: in order to better know the composition of machine for readers, we have made PCB composition figure, the connecting lines in PCB composition figure are the main control liner, signal line and power cord connected through flat cable, but all connected flat cable are not included. ± 7.1.1 Features ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ Compatible with DivX, MPEG4 discs to produce wonderful pictures. 108MHz/12bit video DAC, with more vivid and brilliant pictures. Digital echo Karaoke to enable your singing easier. Composite Video, S-Video and Component Video outputs. Bullt-In Dolby Digital decoder, separate 5.1Ch Outputs. Dolby output for 2channel(DOWNMIX). DVD-Audio decoding output to reproduce original and realistic sound effects. Brightness, chroma and contrast adjustment functions to render your eyes more comfortable. Progressive-scan video outputs to eliminate the flickers hardly ouvercome by interlacing scan and therefore your eyesight will be well-protected. At the same time, the pictures deflnltion Is sharply enhanced and the pictures will be finer, smoother and stabler DTS, Dolby Digital, PCM Digital audio outputs to satisfy the Fans’Ss acoustic requirements. Optical and coaxial outputs for Digital audio. DV721SI Service Manual Loader frame Small bracket XS302 Xs303 XS301 Decode board 2521S-0 Main panel 4965-2 XS201 GND CE CL IR +5V XS401 AV board 7717-0 LFE CC SR SL R L VIEDO Pb Y1 Pr VCC SPDIF PDAT1 Y C PDAT0 PDAT2 +10V DI DO Subsidiary panel 9965-1 Power board 5965S-1 MIC board 6965S-0 AC220V XS402 XS601 XS203 CN502 MIC1 MIC2 AGND +5V +9V -9V VOICE-DET OK CPU+3.3V GND IR SW1 GND LED1# LED2# XS901 XS901 CN503 Laser head - 112 - As for decode board working principle of this player, it only cancels headphone signal loop on the basis of DV717SI, AV board working principle is the same with that of DV717SI, only PCB board is different. We will mainly introduce differences, and now we will introduce MIC board, main panel and power board working principle of DV721SI. 1. MIC circuit block diagram is shown in the figure 7.3.1.1: 7.3.1 MIC circuit MIC1 MIC2 U601A U601B Potentiometer Potentiometer U602A U602B XS601 R623 R618 7 5 2 2 1 1 7 1 3 5 1 2 2. Working principle: this machine includes two-way MIC input, which adopts 9P MIC holder with quieting function and dual-channel volume adjustment function. After inserting microphone and begin to sing, signals inputted by MIC are inputted to pin 3, 5 of U601 respectively for amplifying and then output from pin 1, 7 of U601 and then twp paths are divided. One path, after volume adjustment through potentiometer, inputs from pin 2 of U602 for mixed amplifying and outputs from pin 1 through flat cable holder XS601 to power board and decode board. The other path, enters the comparator composed by U602B through R623/R618, when input signal is up to a certain range, DET pin has high level output, mute circuit controlled by decode chip does not mute; when input signal is not enough, DET is level. VD601 VD602 in circuit are protection diode and VD603 is rectification diode. 1. Control panel block diagram is shown in the figure 7.3.2.1: 7.3.2 Control panel circuit 2. Working principle: after power on, power board only has 3.3V voltage output, pin 2 of power board standby IC U505 outputs high level and lightens standby light in red, other circuits do not work. After power on, each voltage output is normal, pin 6 of U505 outputs high level, and high level of pin 2 turns off at the same time, standby light turns off, and power board begins to supply power for each circuit. Decode system begins to start up, main panel U402 obtains power supply and outputs high level in P2/S2 end, +5V power, through U404 voltage regulating, outputs 3.5V power from pin 2 to supply power for LED402 LED403 of background light board through V402 to make background light on, at the same time, Sw1 outputs high level Ks1, OSC circuit begins to work, and panel button module enters ready state. If K12 is low level, buttons have no function. Figure 7.3.1.1 MIC circuit block diagram PT6554 U401 LCD Display screen background light control circuit XS 401 Subsidiary panel Blue light control circuit button OSC control circuit IR +5V GND CE DL DI DO IR SW1 LED# P1/SI P2/S2 COM1~COM4 S5~S20 KSI K12 KS1~KS6 KII 9965-1 Figure 7.3.2.1 Control panel circuit block diagram At the same time, P1/S1 outputs high level to make the blue background light of mirror on and background light may be turned on and off through firmware. Decode chip gives out display data to Pt6554 to make it drive LCD to display. Remote control principle: remote control receiver lies in subsidiary panel, which is supplied power by CPU3.3V, remote control signal IR is divided into two ways: one path arrives at decode board through main panel to realize operation functions; the other way realizes remote control power on through power board standby control circuit. 7.3.3 Power circuit 1. Power circuit block diagram is shown in the figure 7.3.3.1: Sampling winding Filtering capacitor LM7805 Feedback loop Rectification diode Filtering capacitor Rectification diode Filtering capacitor Rectification diode -9V voltage regulating circuit Rectification, filtering SA+5V +9V +5V -9V Figure 3.2.12.2 Power circuit block diagram +3.3V Filtering capacitor U506 Rectification diode CPU+3.3V STB SR160 -21V Standby control circuit V502 CPU+3.3V ～220V Electromagnetic interference filtering circuit Bridge rectification and filtering circuit DC310V Switch module NCP1200 Switch pipe Absorption loop - 113 - 2. Circuit principle: through power socket, protector tube, voltage dependent resistor R501, common mode rejection BC501 and L501, 220V AC is added to the bridge rectification circuit composed by D501-D504. Diode adopts good performance In4007 which has higher voltage resist value than In4001. 310V DC that outputs after bridge rectification, through TC517, C502, C503 filtering, is added to 2-4 winding of transformer YR501 and sent to pin 5 of switch module after rectification. The switch module start voltage is not sent by D506, R505, but taken from 311V of pin 8 and achieved after being processed inside IC. R503, C502, D505 and C503 compose absorption loop to provide discharge loop of reverse electromotive force for transformer 2-4 winding. Transformer 6-7 winding, through D506 half wave rectification, TC502 and R502 filtering, provides about 10V power for pin 6 of NCP1200. Pin 2 of NCP1200 is feedback control pin, which controls the on state of internal field effect tube to make output voltage stable. Pin 4 of NCP1200 is connected to ground, pin 8 HV is connected to high voltage line, pin 5 DRV drives output of external MOSFET, which belongs to current control type, drain electrode max limit current 110mA and working frequency is 40kHz, 60kHz. 3. Five branch circuits are divided for those coupled to secondary level through transformer (1) Voltage outputted by secondary level 16 pin, through D513 half rectification, controllable silicon, TC515 and filtering, outputs CPU3.3V to supply power for CPU; (2) Voltage outputted by pin 15 of transformer, through D508 half wave rectification, TC503, L505 and TC504 -type filtering, +9V is achieved, then SA+5V through LM7805 voltage regulating, which supplies power for decode board. (3) After half wave rectification, -type filtering, pin 12 voltage of transformer outputs 3.3V to supply power for decode board through D515; (4) After D511 half wave rectification, ZD502 voltage regulating, pin 9 voltage of transformer outputs -9V to supply power for audio circuit. We should mention that voltage outputted from secondary level of transformer is pulse DC, so stable DC level may be achieved only through half wave rectification. Diode of half wave rectification adopts quick recovery diode, which works in high frequency state, so we cannot substitute with common diode. Feedback sampling of switch power is from 3.3V (DC power off is from CPU3.3V, power on is from +3.3V) and supplies for photoelectric coupler 2501 through D516 and R506, and sends to R pin of 2.5V comparator through R508 and R509. When 3.3V is on high side, KA pin of comparator LM431A is on, and then sent to pin 4 of switch IC268P through 2501 photoelectric coupling to decrease the on time of inside switch to decrease the coupling of transformer and the outputted 3.3V to reach the purpose of auto control. Vice verse. This machine has DC power on/off function, so switch power has been designed a power management part with main elements U403 12C508A. It is a programmable logic controller responsible for DC power on/off and LED indicator light control. This p-layer is also with this function, no matter ∏ ∏ - 114 - TC515 10uF/25V D513 HER105 C516 101 R512 22K R514 10K R513 1K STB CPU+3.3V V502 2N5551 D507 1N4148 C517 104 A K U506 MCR100-6 L509 10uH/1A Figure 7.3.3.2 DC power on/off diagram When the machine is on or in standby, high voltage [art of power board, 3.3V output, sampling and feedback circuit are all in working state. in the figure 7.3.3.2: 4. DC power on/off working principle is shown 5. Standby working principle: shown in the figure SW1 produces a low level, pin 2 of U505 receives the pulse of low level, and outputs a low level signal from pin 5 to make triode V502 cut off; when Tc515 anode is more than 3.3V, it feedback to U503 and make U501 decrease “On” time through U502 and make voltage stabilize in 3.3V, for the winding group of pin 16 of TR501 is most, voltage is highest, when TC515 anode is increasing to 3.3V voltage, other winding voltage is very low, and machine cannot enter working state to realize standby. Standby function of remote control is similar to panel button. 7.3.3.3, when working normally, after pressing STANDBY button (or remote controller STANDBY button), GP5 2 GP4 3 GP3 4 vdd 1 GP2 5 GP1 6 GP0 7 GND 8 U505 12C508A R521 10K CPU+3.3V R524 10K ASTB GND C519 104 STB R523 10K SW1 R520 10K R519 10K LED1 Q501 8050 R525 10K R522 10K LED2 R526 0R(DNS) R5290R R531 10K TC514 100UF/10V C522 104 D517 D518 TC516 22uF/16V Figure 7.3.3.3 Standby, power on circuit diagram - 115 - 6. Working principle of power on: shown in the figure 7.3.3.3, Sw1 is equal to the input end of D- type trigger inside U505, each time when Sw1 inputs a triggering level to pin 2 of U505, trigger turns over once, that is pin 3, 5 turn over once. When the player is in standby state, pin 3 LED is defaulted high level to drive panel indicator on; pin 5 STB is defaulted low level, that is V502 base electrode low level. When pressing POWER button on panel (or remote controller), SW1 inputs trigerring low level (or IR inputs power-on signal) to P2 9P7) of U403, pin 3 of U505 changes to low level, panel standby indicator light turns out; at the same time, pin 5 outputs high level to send to base electrode of V502 to make it on, collector electrode changes to low level to make pulse signal of pin 3 of U506 short circuit to ground, controllable silicon cuts off, pin 2 has no output, now CPU+3.3V is provided by +3.3V winding, voltage at this time is low, so voltage increase quickly through feedback loop secondary level winding, and outputs voltage to supply power for each part through rectification, filtering or voltage regulating. - 116 - CPU3.3V has no voltage output Check whether two ends of Tc501 has 300V voltage Check whether cathode of D513 has voltage output Y Y 7.4.1 Troubleshooting flow chart 1. Troubleshooting process for “CPU3.3V has no voltage output” is shown in the figure 7.4.1.1: Check whether protector pipe is burnt down Check whether power is short circuited to ground Check whether rectification pipe D501~D504 is stricken through N N Check power cord and filtering circuit N Check whether U501, U505 are damaged Change protector pipe Change rectification pipe Check whether D513 is normal N N Change D513 Check whether U501, U505 are normal Change Check transformer and U501 peripheral Whether D507 anode voltage output is normal Change U506 Check filtering circuit N Y Y Y N Y Y N Y Figure 7.4.1.1 Troubleshooting flow chart for “CPU3.3V has no voltage output” - 117 - No +5V voltage Whether cathode of D510 has power output Check D510 and transformer Whether pin 7 of CN502 has power output Check +5V filtering circuit OK 2. Troubleshooting process for “No +5V voltage” is shown in the following figure 7.4.1.2: Figure 7.4.1.2 Troubleshooting flow chart for “No +5V voltage” N N Y Y - 118 - Voltage output is unstable Check whether pin LM431R has voltage Check LM431 and sampling resistor Check whether LM431R is normal Change LM431 Check whether photoelectric coupler is normal Change photoelectric coupler Change U501 3. Troubleshooting process for “Voltage output is unstable” is shown in the following figure 7.4.1.3: N N N Figure 7.4.1.3 Troubleshooting flow chart for “Voltage output is unstable” Y Y Y - 119 - JK701 JP703 V702 2004.4.6 7969-3 LEI R709 R707 R708 JP708 JP709 JP702 JK706 L713 L714 V703 L710 TC703 TC705 - - + - + - JP712 TC706 - + - TC702 TC701 - - + - + TC704 JP705 - + - XS701 JP704 JP718 C712 JK703 JP711 V701 L707 JK705 JP707 R703 JP720 JK702 JP706 R701 JP719 L709 JP710 JP701 JP717 28 JP716 JP715 JP714 JP713 L705 7.5.1 PCB board 1. Surface layer of AV OUT Board - 120 - C702 L715 L716 R711 R712 C717 C718 C719 C720 R706 C721 C722 L708 C713 C701 C707 R713 R705 C716 R710 C711 C715 R704 C710 L712 R702 L711 L702 L701 C703 C705 C704 L706 L704 C706 L703 2. Bottom layer of AV OUT Board - 121 - C601 R619 +9V OK AGND VD603 +5V DET -9V TC604 VR601 R618 R623 R611 VR602 MIC601 R617 JP601 TC613 R612 C608 R613 TC611 1 C607 TC602 L601 TC603 JP603 C606 R604 R602 C604 TC606 R610 R606 R608 XS601 6965S-0 2003.12.31 G601 LEI U602 JP604 R615 R616 R620 VD602 VD601 R622 MIC602 TC605 U601 TC601 C605 R609 C602 R607 L602 C603 R603 R601 TC616 G602 TC615 R605 R621 JP602 3. Surface layer of MIC Board - 122 - 1 1 4. Bottom layer of MIC Board - 123 - K402 CHENAP R402 K401 LED405 U401 TC402 LED406 4965-2 DVD 2003/8/9 K406 A K LED404 TC403 U403 +5V K405 IR LED409 XS401 A K TC401 LED401 VD401 K403 LED407 K404 DO DI CL CE LED408 GND 5. Surface layer of KEY SCAN Board - 124 - C404 R410 R404 64 V402 R417 R418 XS402 R412 R408 R409 V404 R411 R413 R405 R407 SW1 U404 R414 IR GND LED# C403 C402 R406 C401 R403 G OI R401 C405 R415 V401 R421 R420 R419 V403 R416 48 1 U402 17 6. Bottom layer of KEY SCAN Board - 125 - 14 12 13 15 R514 JP501 9 11 C518 10 16 L501 DVD 5965S-0 3/30/2004 REPLACE ONLY WITH SAME TYPE F501 FOR CONTINUED PROTECTION AGAINST R515 D506 L503 ~220V CAUTION: 1 BCN501 1 D519 U501 T1.6A L250V FUSE TC502 RISK OF FIRE R505C506 R504 R516 U502 C521 R508 R509 R518 R507 BC503 C515 C501 R502 C503 D505 U503 JP514 C505 7 6 5 3 4 2 F501 T1.6A L250V R501 BC501 D501 U507 JP516 HIGH VOLTAGE D504 D503 D502 R517 TC501 C502 R503 TR501 D513 R528 C516 L509 TC516 TC514 TC512 GND +5V GND CPU+3.3V TC506 GND -21V +5V R506 R510 JP509 FL- FL+ CN501 D515 ZD502 D514 R511 JP515 JP508 D516 ZD501 IR G501 JP507 AGND OK DET TC513 JP502 L508 +5V +9V -9V JP505 JP503 CN503 JP511 JP506 CPU+3.3V ASTB SA+5V GND +3.3V GND JP504 C514 D511 D512 TC511 C513 TC509 C511 D509 C509 D510 L505 D508 C507 R532 CN505 TC505 C508 L506 TC510 L507 C510 TC503 U506 A GK TC504 V502 B E C D507 JP512 R523 R527 R529 R530 TC508 U504 JP510 JP513 TC515 SW1 LED2# GND LED1# D517 R524 C519 CN504 +9V GND +5V AGND -9V OK DET CN502 G502 7. POWER Board - 126 - C603 103 R623 10K R620 1K R611 4.7K R612 4.7K C604 103 R605 10k R604 560R R603 560R R601 22K 5 6 7 U601B 4558 3 2 1 8 4 U601A 4558 +9VA 3 2 1 8 4 U602A 4558 C607 100P R613 5.1K 5 6 7 U602B 4558 R609 10K C605 100p R606 10K R610 10K C606 100p R607 1K R608 1K C608 102 R602 22K TC605 22uF/16V TC603 4.7uF/16V TC606 22uF/16V TC604 4.7uF/16V TC601 4.7uF TC602 4.7u -9VA R617 100K R621 10ohm1/6W TC615 47uF/16V C601 104 R622 10ohm1/6W TC616 47uF/16V C602 104 +9V +9VA -9V -9VA OK 5 4 3 2 1 6 7 8 9 MIC601 5 4 3 2 1 6 7 8 9 MIC602 TC613 4.7uF/16V L601 L602 TC611 47uF/16V +9VA R615 100K R616 330 R619 100 VD601 1N4148 VD602 1N4148 VD603 1N4158 DET R618 10K +5V -9VA -9V +9V AGND OK DET 2 3 4 1 5 6 XS601 XS06 +5V 1 2 3 VR602 10K 1 2 3 VR601 10K R109 1 - 127 - 7.5.2 circuit diagram 1. MIC Board CC AGND AGND VGND LFE CC SR SL R L VIEDO Pb Y1 Pr PDAT1 PDAT2 VCC SPDIF LFE SL SR L R RED WHITE L701 FB L702 FB L703 FB L704 FB L705 FB L706 FB C701 102 C702 102 C703 102 C704 102 C705 102 C706 102 Y C 1 2 3 4 5 6 7 8 9 10 11 12 JK701 AV8 A(B)OUT 1 A(A)OUT 3 RETURN 5 BLUE I/O 7 RETURN 9 GREEN I/O 11 RETURN 13 RED I/O 15 RETURN 17 V-OUT 19 GND 21 A(B)IN 2 A-COM 4 A(A)IN 6 FUNC SW 8 CONT 10 NC 12 RETURN 14 BLK I/O 16 TRTURN 18 V-IN 20 JK706 VJS3921 R704 4.7K R705 75R V701 8050 V702 8050 R708 33R R709 330R R710 2.2K +10V A+10V AGND PDAT0 V703 8050 R711 1K R712 2.2K A+10V PDAT2 C716 104 AGND VCC AGND R707 A+10V AGND AGND VCC PDAT0 +10V VGND VGND Pr L709 FBSMT L708 FBSMT L707 FBSMT Y1 Pb VGND GREEN BLUE RED B G R 1 2 3 4 5 6 JK702 RCA-407 BLACK TC702 1000uF/10V TC703 220uF/16V TC704 220uF/16V L710 FBSMT SPDIF R701 220R C710 104 L713 FCM L714 FCM C707 105 VGND R713 0R AGND VGND R703 68R VIN 1 VCC 2 GND 3 JK705 OPTICAL VCC VGND C711 104 SPDIF L712 FBSMT L711 FBSMT 4 3 2 1 JK703A S-VIDEO 5 7 6 JK703B V-OUT5 R706 2.2R TC701 220uF R702100R VIEDO TC705 220uF/16V TC706 220uF/16V Y C C715 224 VGND VGND 2 3 4 1 5 6 8 9 10 7 11 12 14 15 16 13 17 18 20 21 22 19 23 24 25 26 28 27 XS701 XS28 L716 FBSMT L715FBSMT C712 105 VGND C713 105 C717 104 C722 104 C720 104 C721 104 C718 104 C719 104 2. AV OUT Board - 128 - K404 K403 K401 K402 1 2 VD401 1N4148 K405 K406 P1/S1 1 P2/S2 2 P3/S3 3 P4/S4 4 S5 5 S6 6 S7 7 S8 8 S9 9 S10 10 S11 11 S12 12 S13 13 S14 14 S15 15 S16 16 S17 17 S18 18 S19 19 S20 20 S21 21 S22 22 S23 23 S24 24 S25 25 S26 26 S39 39 S38 38 S37 37 S36 36 S35 35 S34 34 S33 33 S32 32 S31 31 S30 30 S29 29 S28 28 S27 27 KI3 52 KI2 51 KI1 50 KS6 49 KS5 48 KS4 47 KS3 46 KS2 45 KS1 44 COM4 43 COM3 42 COM2 41 COM1 40 KI4 53 KI5 54 TEST 55 VDD 56 VDD1 57 VSS 59 OSD 60 DO 61 CE 62 CL 63 DI 64 VDD2 58 U402 PT6554LQ S3 KS5 KS4 KS3 KS2 KS1 COM4 COM3 COM2 COM1 COM1 COM2 COM3 COM4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 C401 103 TC401 47uF/16V DO CE CL DI C405 101 C404 681 R403 4.7K R404 62K +5V +5V KI1 R405 75R +5V +5V GND CE CL DI DO COM4 20 COM3 19 COM2 18 COM1 17 S16 16 S15 15 S14 14 S13 13 S12 12 S11 11 S1 1 S2 2 S3 3 S4 4 S5 5 S6 6 S7 7 S8 8 S9 9 S10 10 U401 LCD C403 103 C402 103 (DNS) (DNS) REQUIER +4V TO LIGHT B C E V401 8050D R401 1K LED401 R402 470R +5V S17 P1/S1 S18 2 3 4 1 5 6 7 XS401 XS07 IR LED# GND IR A K LED402 A K LED403 1 2 R406 0R R414 1K R408 R409 V403 8550 1 2 R410 47R SW1 KS1 KI2 KI2 2 3 4 1 XS402 XS04 SW1 1 2 LED404 LED405 LED406 LED407 LED408 LED409 V404 8050D R411 1K R412 75R +5V R413 0R S19 S20 IN 3 GND 1 OUT 2 U404 LM117 R407 1K R415 1K TC402 47uF/16V TC403 47uF/16V V402 8050D P2/S2 P2/S2 1 2 R416 47R +5V 1 2 R418 1 2 R417 LED# 1 2 R419 4.7K 1 2 R420 4.7K 1 2 R421 4.7K +5V 3. KEY SCAN Board - 129 - U503 LM431A C515 104 L505 10uH/1A L507 10uH/2A L506 10uH/2A R K A ! ! R510 4.7K R509 2K R508 3.3K R506 150 U502 2501 FL+ FL- -21V GND +5V C513 101 C509 101 C514 101 C511 101 +9V -9V GND +3.3V +5V GND +9V TC504 470uF/25V TC511 100uF/16V TC512 47uF/50V TC506 1000uF/10V TC505 1000uF/10V TC509 1000uF/10V TC510 1000uF/10V D508 HER105 C507 101 TC503 470uF/25V R511 220R/1W R507 1K IN 1 GND 2 OUT 3 U504 LM7805 TC508 100uF/16V SA+5V D510 SR360 ZD501 5.1V D509 SR360 D511 HER105 D512 HER105 TC513 100uF/16V C508 104 C510 104 -9V +5V ZD502 9.1V/1W 2 3 4 6 7 10 11 9 12 13 14 15 16 TR501 EI128/8-2 TC515 10uF/25V D513 HER105 C516 101 R512 22K R514 10K R513 1K D514 SR160 D515 SR560(JUMP) +3.3V STB CPU+3.3V ASTB SA+5V GND CPU+3.3V V502 2N5551 D507 1N4148 C517 104 CPU+3.3V A K G U506 MCR100-6 R518 10K(DNS) L509 10uH/1A D516 1N4148(JUMP) GP5 2 GP4 3 GP3 4 vdd 1 GP2 5 GP1 6 GP0 7 GND 8 U505 12C508A R521 10K CPU+3.3V R524 10K ASTB GND IR C519 104 STB R523 10K SW1 R520 10K R519 10K LED1 Q501 8050 R525 10K 1 2 3 4 5 6 7 8 9 10 11 12 13 CN502 XS13 VOICE-DET OK AGND 2 3 4 1 5 6 CN503 XS6 AGND +5V +9V -9V VOICE-DET OK R522 10K LED2 R526 0R(DNS) CPU+3.3V R527 10K R528 10K LED1# LED2# LED1 LED2 CPU+3.3V GND IR 2 3 4 1 5 CN501 XS05 +5V 2 3 4 1 CN504 XS04 SW1 GND LED1# LED2# 2 3 4 1 5 CN505 XS05 GND L508 10uH/1A SA+5V R529 0R R530 R531 10K Q503 8550 C521 104 C520 104 C518 104 R532 220R/1W TC514 100UF/10V C522 104 D517 D518 TC516 22uF/16V C506 102/100V BC501 ~275V 104 L501 UT-20 40mH F501 T1.6A/250V ! ! R505 33ohm R503 39K/2W ! ! TC502 10uF/50V TC501 47uF/400V D505 HER107 C502 103/1KV C503 101/1KV L503 FB BC503 ~400V 221 C505 101 R515 300 R501 680K 1/2W ! ! ! D506 HER105 D503 1N4007 D502 1N4007 D504 1N4007 D501 1N4007 BCN501 ~220V R504 30K R516 1.5K D517 1N4148 R502 1/1W C501 101/1KV U505 P4NC60 DRV 5 VCC 6 NC 7 HV 8 ADJ 1 FB 2 CS 3 GND 4 U501 NCP1200 R517 720K/1W (OPEN) 4. POWER Board - 130 -