PLASMA TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. CHASSIS : PU82C MODEL : 60PG60 60PG60F-UA CANADA : http//biz.lgservice.com USA : http//www.lgservice.com : http//biz.lgservice.com Internal Use Only CH VOL MENU INPUT ENTER - 2 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only SAFETY PRECAUTIONS Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. General Guidance An lsolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks. It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitary that may be inadvertently introduced during the service operation. If any fuse (or Fusible Resistor) in this monitor is blown, replace it with the same specified type. When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB. Keep wires away from high voltage or high temperature parts. Leakage Current Cold Check(Antenna Cold Check) With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on positioin, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1MΩ and 5.2MΩ. When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer. Leakage Current Hot Check (See below Figure) Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check. Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each esposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to 0.5mA. In case any measurement is out of the limits sepcified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer. Leakage Current Hot Check circuit CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 USA : LG Customer Interactive Center P.O.Box 240007, 201 James Record Road Huntsville, AL 35824 Digital TV Hotline 1-800-243-0000 1.5 Kohm/10W To Instrument's exposed METALLIC PARTS Good Earth Ground such as WATER PIPE, CONDUIT etc. AC Volt-meter IMPORTANT SAFETY NOTICE 0.15uF - 3 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only SPECIFICATIONS.................................................................4 ADJUSTMENT INSTRUCTIONS ..........................................5 TROUBLE SHOOTING GUIDE...........................................11 BLOCK DIAGRAM...............................................................16 EXPLODED VIEW...............................................................24 EXPLODED VIEW PARTS LIST .........................................25 SCHEMATIC DIAGRAM.......................................................... PRINTED CIRCUIT BOARDS................................................. TABLE OF CONTENTS - 4 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only The specifications shown above may be changed without prior notice for quality improvement. MODELS AC100-240V ~ 50/60Hz NTSC-M, ATSC, 64 & 256 QAM VHF 2-13, UHF 14-69, CATV 1-135, DTV 2-69, CADTV 1-135 75 ohm 32 ~ 104°F (0 ~ 40°C) Less than 80% -4 ~ 140°F (-20 ~ 60°C) Less than 85% Dimensions (Width x Height x Depth) Weight Power requirement Television System Program Coverage External Antenna Impedance Environment condition With stand Without stand With stand Without stand Operating Temperature Operating Humidity Storage Temperature Storage Humidity 42PG60 (42PG60-UA) 50PG60 (50PG60F-UA) 60PG60 (60PG60F-UA) 41.1 x 28.9 x 12.1 inches 1044.4 x 735.4 x 308.0 mm 41.1 x 26.7 x 3.1 inches 1044.4 x 680.6 x 79.6 mm 61.7 pounds / 28.0 kg 55.1 pounds / 25.0 kg 48.6 x 33.4x 14.3 inches 1235.6 x 849.3 x 364.1 mm 48.6 x 31.2 x 3.1 inches 1235.6 x 792.8 x 79.6 mm 96.1 pounds / 43.6 kg 87.5 pounds / 39.7 kg 57.2 x 38.7x 16.2 inches 1455.0 x 985.0 x 414.0 mm 57.2 x 36.4 x 3.3 inches 1455.0 x 924.8 x 84.1 mm 130.5 pounds / 59.2 kg 113.9 pounds / 51.7 kg SPECIFICATIONS - 5 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ADJUSTMENT INSTRUCTIONS 1. Application Range This spec sheet is applied all of the PDP TV, PU82C chassis. 2. Specification (1) Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help protect test equipment. (2) Adjustments must be done in the correct order. (3) The adjustments must be performed in the circumstance of 25±5°C of temperature and 65±10% of relative humidity if there is no specific designation. (4) The input voltage of the receiver be must kept 220V, 60Hz when adjusting. (5) The receiver must be operational for about 15 minutes prior to the adjustments. 1) After receiving 100% white pattern, the receiver must be operated prior to adjustment. (Or 8. Test Pattern condition in EZ - Adjust) 2) Enter into White Pattern - Press POWER ON Key on the Service Remote Control (S R/C) - Enter the Ez - Adjust by pressing ADJ Key on the Service Remote Control (S R/C). - Select 10. Test Pattern using the CH +/- Key and select the White by pressing the direction Key. Display the 100% Full White Pattern. [ Set is activated HEAT-RUN without signal generator in this mode. O HEAT RUN Preliminary action is applied to the test for afterimage discharge detection, and 100% FULL WHITE PATTERN must be operated automatically. O Test for afterimage discharge detection 1) Pressing Power On key - Only operating by pressing Power On key 2) Full Test Pattern(2 min 30sec) --> Full Black Pattern(30sec) --> Full White Pattern(maintenance) - Full White Pattern when the main power is turned on again after being turned off 3) Pattern Mode is deselected by pressing CH +/-, Exit Key. [ Set is activated HEAT-RUN without signal generator in this mode. If you turn on a still screen more than 20 minutes (Especially Digital pattern(13 CH), Cross Hatch Pattern), an afterimage may occur in the black level part of the screen. Test Pattern 2min 30sec Test Pattern 30sec - 6 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ADJUSTMENT INSTRUCTIONS 3. PSU(Power Supply Unit) Voltage Adjustment (Va, Vs Voltage Adjustment) Adjust the voltages Va and Vs supplied from the PSU to the module within the specified range of each module to supply the stable power 3-1. Test Equipment (1) D.M.M 1EA (2) Voltage adjustment bar 3-2. Adjustment(60”) (1) Va Voltage Adjustment 1) Connect + terminal of D.M.M to Va pin of P812 and connect – terminal to GND pin of P812. 2) Adjust VR901 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V) (2) Vs Voltage Adjustment 1) Connect + terminal of D.M.M to Vs pin of P812 and connect – terminal to GND pin of P812. 2) Adjust VR951 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V) 3-3. Adjustment (50”) (1) Va Adjustment 1) Connect + terminal of D.M.M to Va pin of P12 and connect – terminal to GND pin of P12. 2) Adjust VR951 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V) (2) Vs Adjustment 1) Connect + terminal of D.M.M to Vs pin of P12 and connect – terminal to GND pin of P12. 2) Adjust VR901 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V) 3-4. Adjustment(42”) (1) Va Voltage Adjustment 1) Connect + terminal of D.M.M to Va pin of P812 and connect – terminal to GND pin of P812. 2) Adjust VR901 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V) (2) Vs Voltage Adjustment 1) Connect + terminal of D.M.M to Vs pin of P812 and connect – terminal to GND pin of P812. 2) Adjust VR951 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V) Each PCB assembly must be checked by check JIG set. (Because power PCB Assembly damages to PDP Module, especially be careful) Connection Diagram of Power Adjustment for Measuring (Power Board): 60” Connection Diagram of Power Adjustment for Measuring (Power Board): 50” Connection Diagram of Power Adjustment for Measuring (Power Board): 42”(EAY32808901) - 7 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ADJUSTMENT INSTRUCTIONS 4. Component 480i/1080p RGB 1080p Adjustment Component 480i/1080p RGB 1080p adjustment to set the black level and the Gain to optimum. 4-1. Test Equipment (1) Service R/C (2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern Generator (480i/1080p The Horizontal 100% Color Bar Pattern adjust to within 0.7±0.1Vp-p) [ Because the above pattern can differ by the model and pattern for each device, you must check the pattern first. 4-2. ADC 480i Component1 Adjustment (1) Check the connection Component1 to the Test Equipment. (MSPG-925FA => Model: 209, Pattern: 65) (2) Select Component1 as the input with 100% Horizontal Color Bar Pattern(HozTV31Bar) in 480i Mode and select ‘Normal’ in screen. (3) After receiving signal for at least 1 second, press the ADJ Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘3. ADC 480i Comp1’. Pressing the Enter Key to adjust automatically. (4) When the adjustment is over, 'ADC Component1 Success’ is displayed. (5) If the adjustment has errors, 'ADC Component1 480i Fail’ is displayed. And error massage(‘Component1 Not Connected’ or ‘Not Valid Format’ or ‘Check Signal Status’) is displayed for 1 second. 4-3. ADC 1080p Component1/RGB Adjustment (1) Check the connection Component1, RGB to the Test Equipment (MSPG-925FA => Model: 225, Pattern: 65) (2) Select Component1 as the input with 100% Horizontal Color Bar Pattern(HozTV31Bar) in 1080p Mode and select ‘Normal’ in screen. (3) After receiving signal for at least 1 second, press the ADJ Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘4. ADC 1080p Comp1/RGB’. Pressing the Enter Key to adjust automatically component1. (4) When the adjustment is over, 'ADC Component1 Success’ is displayed. If the adjustment has errors, 'ADC Component1 1080p Fail’ is displayed. (5) After the Component1 adjustment is over, convert the RGB-DTV Mode and start RGB adjustment. When the adjustment is over, 'ADC RGB 1080P Success’ is displayed. (6) Readjust after confirming the case Pattern or adjustment condition where the adjustment errors. Error massage is ‘Component1 Not Connected’ or ‘Not Valid Format’ or ‘Check Signal Status’. (7) After adjustment is complete, exit the adjustment mode by pressing the ADJ KEY. 5. EDID(The Extended Display Identification Data)/DDC (Display Data Channel) Download It is the feature to implement the “Plug and Play” which automatically reconfigures the user’sl environment to directly use by exchanging information without any command directly to the PC or the monitor by the user, which is established by the VESA 5-1. HDMI EDID Data Input (1) Required Test Equipment 1) PC, Jig for adjusting DDC. (PC serial to D-sub Connection equipment) 2) S/W for writing DDC(EDID data write & read) 3) D-Sub cable 4) Jig for HDMI Cable connection (2) Preparation for Adjustments & Setting of Device 1) Set devices as below and turn on the PC and JIG. 2) Open S/W for writing DDC (EDID data write & read). (operated in DOS mode) Adjustment Pattern: 480i/1080p 60Hz Pattern LCD TV SET (or Digital Board) - 8 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ADJUSTMENT INSTRUCTIONS 5-2. EDID DATA for PU82C : EDID for HDMI-1 (DDC (Display Data Channel) Data) EDID table = : EDID for HDMI-2 (DDC (Display Data Channel) Data) EDID table = : EDID for HDMI-3 (DDC (Display Data Channel) Data) EDID table = : EDID DATA for RGB EDID table = - 9 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ADJUSTMENT INSTRUCTIONS 6. Adjustment of White Balance 6-1. Required Test Equipment (1) Color Analyzer : CA-210 (CH 10), CA-100(CH-10), CA- 100+(CH-10) => To adjust color temperature of Plasma, CS-1000 is the Color Analyzer and should be set to use CH 10 in which white, red, green, and blue color are corrected. Conduct the adjustment according to the coordinates for White Balance adjustment in the table below. (2) Computer for adjusting (necessary for the automatic adjustment, possible to communicate with the RS-232C, Baud Rate : 115200) (3) Video Signal Generator MSPG-925F 720p, 216Gray (Model :217, Pattern 78) [ Requirements for Automatic Adjustment (1) The illuminance of surroundings 10 lux or less; preventing light in surroundings as much as possible (2) The location of the Probe 1) For PDP: place the color analyzer (CA-100, CA-100+) close to the surface of a module and start the adjustment. 2) For LCD: place the color analyzer (CA-210) close to the surface of a module within 10 cm and keep the probe of the color analyzer at 80° to 100° angle from the surface of a module. 6-2. Connection Diagram of Equipment for Measuring (Automatic Adjustment) 6-3. White Balance Adjustment Method Basically it uses the internal pattern but when internal pattern is not possible, you can select HDMI input for adjustment. Through the option at the most bottom part of the Ez Adjust Menu 7.White Balance menu, you can select NONE, INNER and HDMI, and the default is set to INNER. When the adjustment cannot be done with the internal pattern, you can select HDMI input for adjustment. For manual adjustment, press the ADJ KEY of the adjustment R/C to enter Ez Adjust 7.White-Balance, and the pattern is automatically displayed. (When you set the Option to INNER, the default is always set to INNER) (1) Connect the set according to the internal pattern or HDMI input in accordance with measuring device connection diagram. (2) Set the Baud Rate of RS-232C to 115200. It is set to 115200 as default. (3) Connect the RS-232C Cable to the set. (4) Connect the HDMI Cable to the set. (Limited to the set with HDMI option) (5) Select and adjust the model applicable to PU82C chassis from the adjuster. [RS-232C command used for the automatic adjustment] Ô Wb 00 00-----white balance Automatic Adjustment Start Ô Wb 00 10-----Gain Adjustment start (Internal pattern) Ô Ja 00 ff------Adjustment Data (internal pattern) Connection Diagram for Internal Pattern Connection Diagram for HDMI Input wb wb wb wb wb wb 00 00 00 00 00 00 00 10 1f 20 2f ff White Balance Adjustment Start Gain Adjustment Start(Internal white pattern) Gain Adjustment End Offset Adjustment Start(Internal white pattern) Offset Adjustment End White Balance Adjustment End (Disappear Internal pattern) RS-232C COMMAND [CMD ID DATA] Meaning - 10 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ADJUSTMENT INSTRUCTIONS Ô Jb 00 c0 Ô ... Ô Wb 00 1f-----Gain Adjustment End Ô *(wb 00 20(Start), wb 00 2f(End))----- When adjust Off-set Ô Wb 00 ff------White Balance Automatic Adjustment End (Disappear Inside pattern) [Adjustment Map] 6-4. Automatic Adjustment (1) Execute POWER ON(Â) of the adjustment R/C to execute automatic adjustment. (2) Set the Baud Rate to 115200. (3) Always start adjustment with “wb 00 00” and end adjustment with “wb 00 ff” (4) Adjust the offset if necessary 6-5. Manual Adjustment (1) Required Test Equipment: CA-210 (CH 10), CA-100(CH- 10), CA-100+(CH-10) => To adjust color temperature of Plasma, CS-1000 is the Color Analyzer and should be set to use CH 10 in which white, red, green, and blue color are corrected. Conduct the adjustment according to the coordinates for White Balance adjustment in the table below. (2) Enter the ‘Ez - Adjust’ by pressing the ADJ on the Service R/C. (3) Select 10.TEST PATTERN using the CH + / - KEY and press the Enter KEY to execute a heat run for more than 30 minutes. (4) Execute a Zero Calibration for CA-210 and put it at distance of less than 10Cm from the PDP module surface center during the adjustment. (5) Select ‘7. White-Balance’ of ‘Ez - Adjust’ by pressing the ADJ KEY on the Service R/C. Then enter adjustment mode by pressing the Right KEY (G) . (The internal pattern of full white appears by pressing G) (6) The adjustment is conducted in three levels of color temperature; COOL, MEDIUM, and WARM. -When R Gain is Fixed at Default value(192) Adjust G gain and B gain with decreasing Default values from 192 -When B Gain is Fixed at Default value(192) Adjust R gain and G gain with decreasing Default values from 192 -When G Gain is Fixed at Default value(192) Adjust R gain and B gain with decreasing Default values from 192 One of R/G.B Gain should be fixed at 192 and adjust two Gain Value with decreasing the Default values from 192. (7) Use the Vol. +, - key for adjustment. (8) When the adjustment is completed, press the ENTER (Á KEY) button to move to the Ez –Adjust screen. Press the ADJ KEY to exit the adjustment mode. R Gain G Gain B Gain R Cut G Cut B Cut Jg Jh Ji Cool Ja Jb Jc Mid RS-232C COMMAND [CMD ID DATA] CENTER (DEFAULT) Jd Je Jf 00 00 00 192 192 192 127 127 127 Warm Min Max 184 187 192 64 64 64 Cool 192 183 161 64 64 64 Mid 192 159 95 64 64 64 Warm - 11 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only TROUBLE SHOOTING GUIDE TV/CATV(Analog ) doesn t display Check TU1 Pin16(Video output) Can you see the normal signal? Check the input(Pin1) of Low-Pass Filter (IC808). Can you see the normal waveform? Check the output(pin8) of Low-Pass Filter(IC808). Can you see the normal waveform? Check the Capaciter(C658) in front of BCM3553 chip. Can you see the normal waveform? YES YES YES NO Could you measure VCC voltage(3Pin) of TU1 & IIC lines(7,8Pin)? Are they all normal? YES You should replace TUNER. NO After checking the C800(0.1uF Cap), you can suspect that PCB is bad. NO After checking the Power of Low-Pass Filter you should decide to replace Low-Pass Filter or not. NO After checking the pattern between pin8 of IC808 and C658, you can suspect that PCB is bad.. YES This board has big problem because Main chip(BCM3550) have some troubles. After checking thoroughly all path once again, You should decide to replace BCM3553 or not. - 12 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only TROUBLE SHOOTING GUIDE Video doesn t display Check JP7004. Can you see the normal waveform? Check the Registor(R732). Can you see the normal waveform? YES YES NO JK701 may have problem. Replace this Jack. Check the C651 in front of BCM3553 chip. Can you see the normal waveform? NO replace Part(R732). YES This board has big problem because Main chip(BCM3553) have some troubles. After checking thoroughly all path once again, You should decide to replace BCM3553 or not. NO After check the pattern between R703 and C651, You can suspect that PCB is bad. - 13 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only TROUBLE SHOOTING GUIDE Component doesn t display Check JP7001,J7015. Can you see the normal waveform? Check the L700, L704. Can you see the normal waveform? Check the C638, C628 in front of BCM3553. Can you see the normal waveform? YES YES NO JK700, JK702 may have problem. Replace this Jack. NO Replace the Part (L700, L704) NO After check the pattern between L703 and C651, You can suspect that PCB is bad. YES This board has big problem because Main chip(BCM3553) have some troubles. After checking thoroughly all path once again, You should decide to replace BCM3553 or not. - 14 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only TROUBLE SHOOTING GUIDE Check JP7032,JP7033,JP7034. Can you see the normal waveform? Check the C635, C636, C637 in front of BCM3553. Can you see the normal waveform? YES NO JK705 may have problem. Replace this Jack. NO After check the pattern between input of BCM3553 and JK705 , You can suspect that PCB is bad. RGB_PC doesn t display Check JP7029,JP7030. Can you see the normal waveform? YES NO JK705 may have problem. Replace this Jack. YES This board has big problem because Main chip(BCM3553) have some troubles. After checking thoroughly all path once again, You should decide to replace BCM3553 or not. - 15 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only TROUBLE SHOOTING GUIDE HDMI doesn t display Check input connect JK602. Can you see the normal waveform? Check DDC communication lines(IC601 Pin5,6) Check the input of PI3HDMI341ART(IC600), & IC703(TMDS141RHAR, HDMI4) This signal is TMDS. Can you see the normal waveform? YES YES NO JK602 may have problem. Replace this Jack. Check the output of PI3HDMI341ART(IC600 ) & IC703(TMDS141RHAR, HDMI4). Can you see the normal waveform? YES Check the input and output of BCM3553. Especially you should check The H,V sync and clock. Can you see the normal waveform? YES NO NO After checking the trace of TMDS lines and power of PI3HDMI341ART & IC703(TMDS141RHAR, HDMI4), you should decide to replace PI3HDMI341ART & IC703(TMDS141RHAR, HDMI4) or not. NO YES This board has big problem because Main chip(BCM3550) have some troubles. After checking thoroughly all path once again, You should decide to replace BCM3550 or not. After checking the Power of this chip, you should decide to replace this or not. After checking the Power of PI3HDMI341ART or TMDS141RHAR. you should decide to replace PI3HDMI341ART & TMDS141RHAR or not. YES Check HDCP communication lines(IC102 Pin5,6) NO After checking the Power of this chip, you should decide to replace this or not. - 16 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only BLOCK DIAGRAM Block Diagram - Overview Flash (16MB) 74LVC14APW CS5345 (Audio SW/ADC/OP_A MP) MTV416 (Micom) NTP3000 (Digital AMP) X-tal(54M) PI3HDMI341ART (3x1,S/W) EEPROM AT/NT Tuner 64Bit I/F Reset CVBS Y/Pb/Pr R/G/B H/V Sync RGB-PC HDMI 0/1/2 COMP 1 COMP 2 AV 1 AV 2 RGB-PC Audio L/R I2S MNT out ( L/R) SPDIF OUT I2S RS-232C Dead IC when Standby Option Alive IC when Standby Video Audio Video Front End Dual HDMI Rx HD/SD Video Encoder Audio DSP BCM3552(HD)/3(FHD) MCLK MCLK HDMI CEC HDMI CEC (To Micom) To Micom SDA SCL SIF IF(AT) Buffer Single Channel Digital out (W)XGA Local KEY IR Buffer Buffer 24C16 AGC CTL (From BCM) USB2.0 I2S Audio Input VSB/QAM/NTSC/SIF DDR(128MB) CVBS/Y/C CVBS FHD Dual Channel Y/Pb/Pr - 17 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only BLOCK DIAGRAM Signal path for CVBS, Component, RGB Comp1_Y H Sync V Sync BCM3552/3 Comp1_Pb Comp1_Pr Component 1 Input Component 2 Input RGB Input RGB H_Sync Side AV CVBS Rear AV Rear S_Video Y/C CVBS CVBS 2 L1/C1 CVBS 3 L2/C2 ANT/ Cable TUNER IF_P IF_N IF_P from TUNER for DTV IF_N from TUNER for DTV CVBS 1 EEPROM FOR EDID DDC SDA DDC SCL RGB V_Sync LVDS_Tx Out Component_1 S/W Component_2 S/W Rear_CVBS_ S/W RGB S/W GPIO[0:6] Comp2_Y Comp2_Pb Comp2_Pr RGB_G RGB_B RGB_R DDC SCL to Micom for Download LPF 6 Mhz LPF 30Mhz LPF 30Mhz LPF 30Mhz LPF 30Mhz LPF 30Mhz LPF 30Mhz LPF 6 Mhz LPF 6 Mhz DDC SDA to Micom for Download DVO Out[0:29] Rear_S-Video_ S/W Side_CVBS_ S/W LVDS Con. 26P(HD) 40P(FHD) LVDS Con. - 18 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only BLOCK DIAGRAM Signal path for HDMI BCM355/23 HDCP SDA HDCP SCL NDA NCL HDMI 1 TMDS1 RX0+/- TMDS1 RX1+/- TMDS1 RX2+/- TMDS1 RXCLK+/- DDC SDA1 DDC SCL1 EEPROM For EDID HDMi — CEC +5V Power_1 Hot Plug Detect_1 LVDS_Tx Out HDMI 2 TMDS2 RX0+/- TMDS2 RX1+/- TMDS2 RX2+/- TMDS2 RXCLK+/- DDC SDA2 DDC SCL2 EEPROM For EDID HDMi — CEC +5V Power_2 Hot Plug Detect_2 TMDS341A TMDS0 INPUT DDC SDA DDC SCL TMDS1 INPUT TMDS2 INPUT TMDS RX0+/- TMDS RX1+/- TMDS RX2+/- TMDS RXCLK+/- Hot Plug Detect_0 TMDS Out TMDS_Rx Input0 HDMi_Sel_0 HDMi_Sel_1 HDMi_Sel_2 Hot Plug Detect_1 Hot Plug Detect_2 +5V Power_0 +5V Power_1 +5V Power_2 GPIO[0:8] Switch Selection DDC INPUT MTV416 Micom HDMi — CEC Parallel connections with HDMi 0,1,2,4 LVDS out 31P Con. 31P LVDS Con. EEPROM for HDCP DDC SDA1 DDC SCL1 DDC SDA2 DDC SCL2 TMDS0 RX0+/- TMDS0 RX1+/- TMDS0 RX2+/- TMDS0 RXCLK+/- DDC SDA0 DDC SCL0 EEPROM For EDID HDMI 0 HDMi — CEC +5V Power_0 Hot Plug Detect_0 DDC SDA0 DDC SCL0 DDC OUT HDMI 4 TMDS3 RX0+/- TMDS3 RX1+/- TMDS3 RX2+/- TMDS3 RXCLK+/- DDC SDA3 DDC SCL3 EEPROM For EDID HDMi — CEC +5V Power_3 Hot Plug Detect_3 DDC SDA3 DDC SCL3 TMDS_Rx Input1 - 19 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only BLOCK DIAGRAM AV1_Audio AV2_Audio MNT_Audio HDMI (PC/DTV) Comp2_Audio RGB_Audio Comp1_Audio I2C SCL/SDA [L1 / R1] [L2 / R2] [L3 / R3] [L4 / R4] [L5 / R5] Switch Switch [Rout/Lout] Audio Switch [CS5345] I2S_CLK_IN/DATA_IN /LR IN (I2S_MCLK) SPDIF OUT Buffer Buffer PWM MODULATOR/ POWER AMP [NTP3000A] SIF IN Broadcom [BCM3552/3] AUD_SPDIF ANA L/R IN BCM_MCLK BCM_MCLK I2S_CLK_IN I2S_DATA_IN I2S_LR_IN RESET RESET I2S_CLK_OUT I2S_DATA_OUT I2S_LR_OUT (NTP3000A) I2S_CLK_OUT/ DATA_OUT/ LRCH OUT I2C SCL/SDA OUT1A/B OUT2A/B SPK R SPK L MNT_L/R OUT HDMI Rx Built in Internal I2S/SPDIF Convert HDMI_TMDS 0/1/2/3CLK TUNER (ATSC/NTSC ) I2C SCL/SDA Buffer Buffer SIF IF_P IF_N AUD_LEFT/RIGHT P HDMI_RX_DATA/CLK BTSC Decoder MPEG2 Dolby AUDIO Processor Signal path for AUDIO/ IF SPDIF OUT(coaxial) BCM_MCLK IF AGC CVBS FRONT END - 20 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only BLOCK DIAGRAM BCM3553 4.7K ‰ 5.0V I2C_Channel 0 I2C_Channel 1 ATSC/NTSC Tuner I2C_Channel 2 I2C_Channel 3 I2C0_5V I2C1_5V 4.7K‰ 5.0V Address 0xC2 0x9A 0x74 0xA6 0x94 0x54 0x50 0x?? 0xD4 0x I2C MAP HDCP Key EEPROM NTP3000 NVRAM I2C2_3.3V I2C3_3.3V MTV416 4.7K ‰ 3.3VST 1K ‰ 3.3V CS5345 PDP MODULE - 21 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only BLOCK DIAGRAM Power Sequence and Flow Diagram +16V +16V NTP3000A (Sound IC) REG IC BIAS Side power +12.0V +12.0V +9V IC811 KA7809 IC803 KIA78R05F +5V_TUNER TU1 TDVF-H051F ST_5V ST_5V Local key/IR power IC202 ICL3232 RS-232C RX/TX Q804 SI4925BDY IC102 AT24C16AN (EEPROM) +5.0 IC407 MTV416GMF ( micom) HDMI CEC Inv/RL 3.3V->5V Q805 SI4925BDY IC408 Comercial IC404 3.3V_MICOM IC402 RS232C Driver BCM I2C Pull up IC201 USB_Power IC403 NVRAM IC500 CS5345 HPD 5V IF AGC RGB SW AV1/2 Component1/2 IC809 3.3V_Reg IC805 1.2V_Reg IC810 2.6V_Reg - 22 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only BLOCK DIAGRAM Power Sequence and Flow Diagram +12V+12V REG IC BIAS Side power IC811 KA7809ERTM TUNER +5V_TU Tuner SIF IC803 KIA78R05F +9.0V BIAS BCM L/R OUT RGB Buffer BIAS +16V+16V IC500 NTP300A - 23 - NOTES Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 24 - Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only EXPLODED VIEW A2 580 240 501 590 603 200 210 206 201 204 207 208 209 205 205 207 206 202 203 250 304 305 300 120 121 570 571 560 310 301 302 307 303 306 602 601 520 400 900 901 Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only MAIN(TOP) MAIN(BOTTOM) CONTROL(TOP) CONTROL(BOTTOM) PRE AMP(TOP) PRE AMP(BOTTOM) Feb., 2008 Printed in Korea P/NO : MFL42040401 CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 USA : LG Electronics Alabama, Inc. P.O.Box 240007, 201 James Record Road Bldg 3 Huntsville, AL 35824