ORDER NO. ARP-215-O STEREO CASSETTE TAPE DECK GT-llo This service manual is applicable Ce manuel d'instruction se refdre Este manual de servicio tlata del CONTENTS r. sPEcrFrcATtoNs 2- FRONT PANEL FACILITIES . , , , 3 . C I R C U | T D E S C F | P T T O N S . . . . . . . . . . 4. BLOCK DIACBAI!1 5. DISASSEI\4BLY 6. PARTS LOCATION 7. EXPLODED VIEWS AND PARTS LIST , PIClNEEFI ELEciTFIc!NIC CClFIFc'FATIclN FIoNEEFT ELECTFONTC€ (UAAI tNC. r9e5E OomnsuezSr,L PToNEEF ELEcTFoNtc [EUFolPEI N.v. FIONEEE ELECTEIONIC to the ZE type. au mode de r6glage. en frangais. metodo de aiuste esclito en espafrol. 2 3 1 0 1 2 l 3 l t . 12- 2 l 23 24 27 30 8 . E L E C T B I C A L P A R T S L I S T . . . . . . . . . 9. PACKING ]0. P,C BOABDS CONNECTION DIAGFAIV . . . . SCHEfu'IATIC DIAGRAN] ADJUSTMENTS YZ G) SEP.lq32 Prlnred in J:pdn www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 1. SPEC|FtCATIONS Systems Compact cassette,2-channel stereo Heads . . . . "Hard Permalloy" recording/playback headx 1 "Ferrite" erasing h€ad x 1 . . . . . . . D C s e r v o m o t o r x 1 No more than 0.05% (WRMS) No more than 10.17% (OlN ) . Approximately 'l 10 seconds {C-60 tape) Input (Sensitivity/l\4aximum aliowable input/lmpedance) MIC (L, R) . .0.35mV/57mV/10.5kO,6mm diam. jack (Reference MIC impedance;250fl to 1OkO) LfNEflNPUT) . . . . . . . 50mV /25Vl75kO Output (Reference level/Load impedance) LINE (OUTPUT) 45OmV/50kf,2 SUBFUNCTIONS . Dolby NR system (ON/OFF) B type . 3 position tape selector (NoFM/croz /M ETAL) . lC full logic control . Air damp eject function a Full automatic stop mechanism o One-touch recording system . LED level meter MISCELLANEOUS P o w e r R e q u i r e m e n t s . . . . , . . . . . . . D C 2 0 V Dimensions .420 (W) x 101 {H)x 237 (D) mm 16-9/16 (W) x 4 (H) x 9-3/8 (D) in. Weight (without package) . FURNISHED PARTS Connection cord DC Power cord NOTES: 3.3k9 {7 lb 4 oz) 1. Reference Tapes: Normal & LH: DIN 45513/BLATT 6 or equiv. CrO, DIN 45513/BLATTT (CrOz ) or equrv. 2. Reference Recording Level: fvleter 0dB indicating level ('l60nwb/m magnetic level = Phillips cassette reference level) 3. Reference Signal: 333H2 4. Wow & Flutter: . JIS [3kHz, with acoustic com- pensation (weighted) rms value] DIN [3.150H2, with acoustic compensation (weighted) PEAK valuel; DIN 45507 5. Frequency Response: a Measured at -20d8 level. DOLBY NR OF, level deviation is 16dB without indication. 6. Signal to Noise Ratio: o Measured at the third harmo- nic distortion 3% level, weighted (DlN 45513/ B LATTT). 7. Sensitivity: Input level (mV) required for reference recording level with input (REC) controls set to maximum. 8. Maximum Allowable Input: While decreasing settings of input (REC) level controls and increasing level at input jacks. this is the maximum input level (mV) at the point where recording amplifier output waveform becomes clipped. 9. Beference Output Level: Playback output level when meter indicates 0dB. l\4otor. . . W o w a n d F l u t t e r . . . . . . . F a s t W i n d i n g T i m e . . . . . . Frequency Response - 20dB recording: Normal tape Chrome tape lvletal tape Signal-to-Noise Ratio D o l b y N R O F F . . . . . . . . . Noise Reduction Effect D o l b y N R O N . . . . . . . . . Harmonic Distortion . . . . . . .30to 16,000H2 (40 to 15.000H2 t3dB) . . . . . . . 3 0 t o 1 6 , 0 0 0 H 2 (40 to 15,000H2 i3dB) . . . . . . . 3 0 1 o 1 6 , 5 0 0 H 2 (40 to 15,000H2 l3dB) . . . . . . M o r e t h a n 5 T d B More than 10dB {at skHz) No more than 1.0% (0dB) www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 2. FRONT PANEL FACILITIES @ eowen swrrcH Pushing this switch turns on the power and causes the power indi- cator to light. Push the switch again to release it when switching off the power to the unit. . The muting circuit is activated after the POWER switch has been set to ON and the unit will not operate for about 4 seconds. This is not a failure or malfunction. . When the POWER switch is set to OFF while the unit is operating, the unit's operation is released and the stop mode is established. @ e.lecr BUTToN Push this button to open the cassette holder. To close the cassette holder, push the top back until it locks. . Do not press this button while the tape is moving. @ cnsserrE DooR @ reee couNTER This shows the position of the tape by means of a 3-digit meter. @ coururEn REsET BUTToN Push this button to reset the tape counter display to 000. @ eowen tNDtcAToR @ nec tNDtcAToR This lights during the recording mode. @ enuse rNDtcAToR This lights during the pause mode. @ LEVEL tNDtcAToRs These indicate the input level during recording and the output level during playback. @ rurucrroN swtrcHEs O (REC) : Push this switch to start recording. When depressed to the ON position, the REC indicator tights. The switch does not work when a cassette is not loaded or when the erasure prevention tabs of a loaded cassette have been broken off. < (REWI : Push this switch to rewind the tape at high speed (from right to teft). >> (FF) : Push this switch to send the tape forward at hiqh speed (from left to right). I (STOPI : Push this switch to stop the tape travelling and to release the function switches. tl (Pausef : Push this switch to stop the tape temporarily during recording or playback. Release it to allow the tape to resume traveling. The tape does not stop during fast forward or re- wind operations even when tne ll (nause) switch as pushed. @ reee sELEcroR swtrcHEs These selectors allow the tape's bias and equalization characteristics to be selected during recording and the equalization characteristics during playback, in line with the type of tape being used. Normal tape : Release the teft switch to the "out" ( I ) posi- tton. Chrome tape : Push the left switch to the "in" ( - ) position and release the right switch to tlre "out" ( I ) oosition. Motal tapo : Push both left and right switches to the ,'in" position ( - ). @ oolav* NR swtrcH Push this switch to ON when recording with the built-in Dolby noise reduction system and when playing back tapes which have been recorded using the system. For other tapes, do not push this switch. @ rurc JAcKs These are the input jacks for microphone recording. plug the left channel microphone into the L jack and the right channel micro- phone into the R .iack. @ rrueur LEvEL coNTRoL Use this to adlust the level of the input signals from the MIC iacks or from the rear panel LINE INPUT terminals. Rotating this control clockwise increases the level. For further details, refer to SETTING T H E R E C O R D I N G L E V E L . The word "Dolby" and D0 are trademarks of Dolby Laboratories Lice nsi ng Corporation. Noise Reduction System mqnufactured under license from Dolby Laboratories Licensi ng Corporation. 5 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 3. CIRCUIT DESCRIPTIONS 3.1 PLAYBACK CIRCUIT The signal from the playback head is amplified by the Q102/Q103 2-stage direct-coupled ampli- fier. In the NORM position, the playback equali- zation (120ps) compensation is achieved by the NF circuit between the Q103 collector and Q102 emitter. In the METAL and CrOz positions, Q104 is turned on, and the equalization characteristics switched from 120ps to 70ps to compensate the frequency response. The level of the EQ AMP output is set by a variable resistor, and further amplified by the Q401 flat amplifier before being parised through the MPX filter and applied to pin 2 of the Dolby IC. This Dolby circuit consists of IC401 (HA11226), and the Dolby ON/OFF switch is linked to the MPX filter ON/OFF switch. When the Dolby switch is OFF, the 19kHz filter is bypassed. The Dolby circuit output appears at pin 8 of IC401, and is passed to LINE OUTPUT via a switching IC (IC402). 3.2 RECORDING CIRCUIT The input signal from the microphone jack is amplified by the microphone amplifier IC101, and passed via the MIC/LINE selector switch to the INPUT volume control where the input level is adjusted. This adjusted signal is passed via IC103 to flat amplifierQ40l. D313 and D314 in the stage before IC103 form a protector circuit designed to protect IC103 from large input signals. The signal amplified by the flat amplifier is pa.ssed via the MPX filter to pin 2 of the Dolby IC, the output appearing at pin 8. The level of this output is adjusted by variable resistor. Then after equaliza- tion in the REC AMP (Q106) in accordance to the type of tape being used, the signal is passed to the recording head. +g 3.3 CONTROL CIRCUIT The control circuit in this deck utilizes a one- chip IC (PM90028) which enables feather-touch operations. In addition to mechanism control, this IC also includes auto-stop function. And due to the digital counter frequency divider system employed in timing settings for the mechanism control, all operational timing discrepancies have been eliminated. The PM9002B pin layout is shown in Fig. 3-3, the functional block diagram in Fig. 3-2, and the output pin time charts during different modes in Figs. 3-4 and 3-5. For inter- relations between circuits, see the block diagram on page 10, 11 and in Fig. 3-1. 4 Operations during Each Mode The mechanical operations effected by the following circuit changes are described in the next chapter (see page 7). 1. When the POWER Switch is Switched ON When the POWER switch is switched on, *5V is applied to pin 1 (Vcc) of IC102. During the initial period when pin 1 voltage is being increased from 0V to 5V (approximately from 0.6V to 2.4V) the IC's intemal reset circuit is activated, putting the IC into stop status which is maintained for about four seconds after the power switch is switched ON. During this time, no change can be effected by pressing any of the other operation control buttons. REC/PB head L I N E O U T P U I r c r o z P M 9 O O 2 B pquse a n R E C R E C p r-a y REc STOP PAUSE R E W B I A S osc o F a MUTE S I G N A L M S L I N E PINCH MUTE REw "iI&, E r E N O OETECT T I M E Fig.3-1 Control system block diagram www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 2. Play Mode When the PLAY button is pressed, the level of pin 5 (FLAY) of IC102 is switched to "L" level, and the level of pin 24 (PINCH SOL) to "H" level. Q306 is turned on and the pinch roller activated. In addition, IC7O2 pin 27 (LINE MUTE) is opened 416ms after the PLAY button is pressed, thereby releasing the line mute status to enable play mode operations to commence. 3. Recording Mode When a cassette half with its erasure prevention tabs intact is loaded in the deck, pin 3 (AR) of ICLO? is switched to "H" level, thereby enabling the deck to be switched to recording mode. When the REC button is pressed, IC102 pin 4 (REC) is changed to "L" level. Pin 20 (RE'C) is also changed to "L" while pin 19 (REC) is open. As a result, the REC indicator lights up and the reed relay (RY301) is switched off, thereby switching the signal path to the recording circuit. And the IC102 pin 24 (PINCH SOL) changed to "H" level, tape transport is commenced. Pin 22 (BIAS OSC) is opened 52ms after the REC button is pressed, thereby activating the bias oscillator. Pin 27 (LINE MUTE) and pin 28 (REC MUTE) are opened 416ms after the REC button is pressed, thereby releasing the line mute and recording mute status to permit recording to start. 4. Fast Forward Mode When the FF button is pressed, IC102 pin 8 (-F-F) is changed to "L" level, followed by pin 26 (FF SOL) being changed to "H" level 416ms later. Q304 is thus turned on, activating the FF solenoid to start fast forward operation. 5. Rewind Mode When the REW button is pressed, IC102 pin ? (REW) is changed to "L" level, followed by pin 25 (REW SOL) being changed to "H" level 416ms later. Q305 is thus turned on, activating the REW solenoid to start rewind operation. 6. Pause Mode The pause mode in this deck is released by pressing the PAUSE button. The pause mode is not released by pressing the PLAY button during play/pause mode, or the REC button during re- cording/pause mode. Note, however, that pressing the PLAY button during recording/pause mode switches the deck to play/pause mode, and pressing the REC button during play/pause mode switches the deck to recording/pause mode. If the PAUSE button is pressed during stop mode, pin 2 (PAUSE) and pin 21 (PALJSE) of IC102 are both changed to "L" level, thereby lighting up the PAUSE indicator. When both the PLAY and EX0 +tzy PULSE L I N E M U l E R E C M U T E Bras osc R E C A R R E C pTiv s-ioF n-EF n vcc plu * REC IUTE L I T E M U T E F F S O L R E W S O L Pr{ca soL A U T O S T O P T I M E E N O P U L S € N F g 5 1,,,' l Fig.3-2 PM9002B internal block diagram Fig.3-3 PM9002B pin layout www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com PAUSE buttons are pressed, IC702 pin 2t is changed to "L" level, and the PAUSE indicator lights up. And since pin 27 (LINE MUTE) of this IC is changed to "H" Ievel, the signal circuit is muted. If the REC and PAUSE buttons are both pressed, IC102 pin 20 tnEel and pin Zf (FAUSB) are changed to "L" level, resulting in both the REC and PAUSE indicators lighting up, and the signal circuit being switched to recording circuit. Furthermore, pin 27 is opened, permitting output of the signal to LINE OUTPUT, but since pin 28 has been changed to "H" level, recording mute mode is maintained. o Timing Chart 7. Auto-stop Mode A photo-interrupter output is applied to pin 16 (END PAUSE) of IC102 during tape transport, resulting in the capacitor connected to pin 17 (C312) being charged up and discharged repeated- ly. The potential at pin 17 is thus kept below the threshold voltage, and prevents activation of the auto-stop mechanism. When tape travel stops and the take-up reel stops turning, the photo-interrupter output is no longer applied to pin 16, and the potential on the ca- pacitor connected to pin L7 (CgLz\ continues to increase until it exceeds the threshold voltage. The IC is thus switched to stop mode, thereby stopping tape mechanisms. Normal ooeration \ Key input \ .- M.d"- Terminal \ PLAY STOP FF STOP REW STOP REC/PAUSE PAUSE STOP REC STOP PAUSE PAUSE PLAY PAUSE l J r { S T O P PLAY STOP F F STOP REW STOP R € C S T O P R E C STOP PAUSE S T O P STOP P L A Y P A U S E LINE IIUTE ( Pin 27 1 H L I -L_t_ t_ L R € C M U T E ( P i n 2 8 ) t_ t_ R E C ( P i n 2 0 ) L J J R E C ( P i n 1 9 ) H I I E r A S O S C I Pin 221 H J J P I N C H S O L ( P i n 2 4 ) H F F S O L . ( P i n 2 6 ) H _,r- R E W S O L . ( P i n 2 5 ) H r P A U S E ( P i n 2 t , Fig. 3-4 PM9002B time chart www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com Normal op€rataon Oirsct changs \ Key input \ -M;A\ FF Blank REC PAUSE Terminal \ STOP R E C L I N E M U T E I P i n ? r l H L L R E C M U T E ( P i n 2 8 ) t_ R E C ( P i n 2 0 l H R E C ( P i n 1 9 ) fl 8r AS ( Pin o s c 221) H J P I N C H S O L . ( P i n 2 9 1 tl L F F S O L . ( P i n 2 6 ) H R E W S O L . ( Pin 25 1 H P A U S E ( P i n 2 l ) Fig. 3-5 PM9002B time chart 3.4 MECHANICAL OPERATIONS Playback Mode The CT-110 makes use of the capstan torque when shifting the head base during playback mode. (Both the recording/playback and erase heads are mounted on the head base). o Stop Mode (see Fig. 3-6) The head base shift mechanism during stop mode is shown in Fig. 3-6. Operating lever (A) presses down towards cam (C) due to operating lever spring (B). With cam (C) combined with cam gear (D), clockwise torque is applied to this cam gear. Solenoid P is inactive, and the hook of gear lever (F) is kept against stopper (G) of cam gear (D) by the cam gear retum spring (E), thereby keeping cam gear (D) stationary. The flywheel is belt-driven by the capstan motor, and rotates counterclockwise together with the capstan gear. Gear lever return spring (E) Cam gpar (Dl SotenojF Operating lever'Spring ( Bl Capstan gearNff." Fig.3-6 STOP operation www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com Switch to Playback Mode from Stop Mode (see Fis. 3-7) 1. Solenoid P is activated () , and the hook of gear lever (F) is released from stopper (G) O . 2. Operating lever (A) is pressed down onto cam (C) by operating lever spring (B) O , ctun gear (D) rotates @ .nd engages capstan gear ( H ) 0 . Solenoid P \e/ t!, Fig.3-7 STOP -+ PLAY operation 1 Switch to Playback Mode from Stop Mode (see Fig. 3€) 3. Cam geax (H) continues rotating due to capstan gear (H) @ , attd cam (C) pushes operating lever (A) up O . 4. After cam (C) passes the point of maximum lift, cam gear (D) disengages capstan gear ( H ) o . (D) Fig. 3-8 STOP -+ PLAY oPeration 2 Switch to Playback Mode from Stop Mode (see Fig. 3'9) 5. Operating lever spring (B) forces operating lever (A) to press against cam (C) €) , thereby tending to continue the rotationary motion of cam gear (D), but since stopper (G) catches the arm of gear lever (F) (E , cam gezr (D) stops rotating and operating lever (A) becomes stationary (playback mode). ( B ) Fig. 3-9 STOP -+ PLAY oPeration 3 o Operation of Different Parts As can be seen in Fig. 3-9, the head base drive pin of operating lever (A) rises during playback mode. This pin forces the head base up through the action of the HB drive spring. The pinch pressuer spring is also lifted at the same time, iorcing the pinch roller into close contact with the capstan. Furthermore, the brake plate is lifted to releur" the reel brake. Pressure is also applied to the idler arm, resulting in the TU idler transmitting drive gear rotation to the TU reel base (the drive gear being belt-driven by the capstan motor)' (see Fig. 3-10). Drive gear TU reel base Fig.3-10 Generation of take-up torque (c) 1A) www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com Switch to Stop Mode from Playback Mode (see Fig. 3-11) 1. When solenoid P is deactivated O , the arm of gear lever (F) is disconnected from stopper (G) bV the action of gear lever retum spring (E) @ 2. Operating lever spring (B) forces operating Iever (A) against cam (C) (D , resulting in rotation of cam gear (D) @ and lowering of the head base drive pin (p 3. Stopper (G) catches the hook of gear lever (F), stopping the mechanism in the condition shown in Fig. 3-6 (stop mode). Fig. 3-1 1 PLAY -+ STOP operation Fast Forward Operation When solenoid F is activated, the drive arm is moved to the right, and the drive gear on the arm engages the idler gear, resulting in rotation of the TU reel base as shown in Fig. 3-12 (the drive gear being belt-driven by the capstan motor). At the same time, the pin on the branch of the drive arm pushes the brake plate up, thereby releasing the reel brake. Brake shoe Drive gear TU reel base Brake plate Drive arm Drive arm bracket pin Rewind Operation When solenoid R is activated (see Fig. 3-18), the drive arm is moved to the left, and the drive gear on the arm engages the supply reel gear result- ing in rotation of the supply reel base. At the same time, the pin at the tip of the drive arm pushes the brake plate up, thereby releasing the reel brake. Brake shoe Brake plate I Solenoid R Supply reel base Brake plate Drive arm Fig. 3-13 Rewind operation I Brake plate Solenoid F Fig. 3-12 Fast forward operation www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 4. BLOCK DIAGRAM ,. MIC AMPLIFIER + E Q U A L I Z E R A M P L I F I E R t<_ 25 dB _____->l CONTROL C I R C U I T REC,/PB HEAD E R A S E H E A D www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 20 dB --*l I DOLBY NR CtRcutT I MPX FILTER L I N E O U T P U T s w r T c H s t o r : s 3 0 r - 7 : s 3 0 r - 9 ; s 6 0 r : s6O2 r 5 6 0 4 i s 6 0 5 . s606 r S 9 O l r s r 2 0 l D O L B Y N R F F R E W S T O P P L A Y P A U S E R E C P O W E R I N P U T S E L E C T O R L I N E - M I C TAPE SELECTOR I.IOR U - II IEN T A P E S E L E C T O R C r O a - M E T A L O N - O F F O N - O F F O N - O F F o N - o F F O N - O F F oN -_qir O N - O F F E R A S E P R E V E N T D E T E C T O R H O L E - N O H O L E The underlined indicates the switch position. + B t ( i l . 7 v ) + 8 2 ( 1 2 . 3 v ) + 8 3 ( r 2 . 3 V ) + 8 4 ( 5 V ) R E C A M P L I F I E R METER CIRCU IT I t c r o z HIGH I I METAL h 6 -ql | -l ffinu-c'o' s30r-3 s30t-7 P O W E R S U P P L Y C I R C U I T 1 1 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 5. DISASSEMBLY Counter belt Volume knob assemblyS Volume knob panel Eiect knob N.-N Door assembly t 1 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 1. Remove the bonnet by undoing screws O and lifting the back part of the bonnet up and pull- ing it to the rear. 2. Remove the cassette door by pushing the eject button to open it and then pulling it up and out. 3. The volume assembly can be removed along with the volume panel by pulling off the volume knob and then undoing the volume assembly,s hexagonal nut. 4. The counter is removed by undoing screws @ and slipping off the counter drive belt. The counter drive belt can be temporarily rested on the side panel R assembly of the mechanical assembly. 5. The display assembly is removed by lifting up and releasing the three hooks on the top part of the front panel assembly @ , pushing down and releasing the two hooks on the center section, and pushing the top part of the dis- play assembly to the rear. 6. The froqt panel assembly is removed by undoing screws @ 7. The mechanical assembly is removed by undoing screws @ and then sliding it to the rear. WARNING: When assembling, first attach the f-ront panel assembly, then attach the disphy assembly. At this time be sure to connect the ground lead to the front panel, 6. PARTS LOCATION Front Panel View NOTES: c Parts without part number cannot be supplied. o The $ mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. o For your Parts Stoch Control, the fast mouing items are indicated with the marhs ** and ,r, ** GENERALLYMOVESFASTER THAN *. This classification shall be adjusted by each distributor because it depends on model number, temperature, humidity, etc. nob cap A RAC-287 r L E D LN31 7GP ' L E D LN21 7RP L E D L N 1 0 1 1 1 1 P Volume knob assembly RAA-372 MIC jack RKN-O8O nob cap C RAC-289 Push knob RAC-290 Bonnet RN4.595 ** Door assembly RXB-724 Front panel assembly RXB-725 Eject knob RAC-292 Power knob RAC-29'l Counter RAW.190 Function panel RAH-439 Knob cap B RAC-288 I J www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com Top View with Bonnet Removed D.C. power jack RNK-082 Transistor assembly (F) Transistor assembly (E) ** D.C. power switch R5A-062 ** Motor assembly RXM-076 ** Plunger solenoid R RXP-127 (RXP-I31 ) * Plunger solenoid F BXP-126 (RXP-130) Rear Panel View Terminal (LINE) RKB-018 Main assembly RWX-637 Terminal (LlNEl RKB-018 LBY NR assembly RWX-638 t* Push switch assembly RSG-139 Volume assembly Sensing assembly Counter belt RE846g 1 4 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 7. EXPLODED VIEWS AND PARTS LIST ' l \ h t 8 . ( D @ \-v-sg www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com l 2 S \ l 5 \ {o.) \ l l \ 58---B 4w" 42 @ A/tr) \s-l I ,rfu 5rB @ 58 ) dI 59 w.b ,fi" l'---1 v-c/ www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com NO?ES; o Parts without part number cannot be supplied. o The A marh found on some component pafts indicatos the importance of the safety factor of the part. Therefore, tthen replocing, be sure to use parts of ide.nticat designation. o For your Parts Stoch Control, the fost mouing items are indicated with the marhs ** and. *. ** GENERALLY MovEs FASTERTHAN *. This classification shall be adjusted by eoch distributor because it depends on model number, temperature, humidity, e tc. Part List Mark No. Part No. Description Mark No. Part No. Description 1. RNA-595 2. RBH-956 3. RAC-292 4. RX8-725 5. RXB-724 6. RAC-287 7. RAC_288 8. RAC-289 9. RAH439 10. RAA-372 1 1 . RAH437 12. RAH-436 1 3 . 1 4 . * 1 5 . G P - 4 1 1 8 16. RN L-536 ** 17. REB468 18. RAW-I90 1 9 . 20. 21 . RCV-I04 22. RAH438 23. RWX-639 24. * 25. LN317GP ). 26. LN217Rp ** 21. Rsc-143 * 2 a . L N 1 0 1 i t 1 p 29. RWX-638 30. RKP-606 31 . 32. 33. RKP-663 34. RWX-637 35. RKNO82 3 6 . RKB-O18 3 7 . 38. RKP-629 39. RKP630 40. RKP628 Bon net Eject spring Eject knob Front panel assembly Door assembly Knob cap A Knob cap B Knob cap C Function panel Volume knob assembly Volume panel Cassette plate Mechanism assembly Sensing assembly Photo interruptor Counter holder Counter belt Counter P.C.B. holder Volume assembly Variable resistor (20k) Meter panel Indicator assembly LED holder L E D L E D Push switch L E D DOLBY NR assembty Connector socket 14P Connector socket 10P Connector assembly 2P Connector assembly 6P Main assembly D.C. power lack Terminal (LINE) Connector 2P Connector 3P (Bl Connector 3P (C) Connector 3P (A) 4'1 . RKP€24 ** 42. RSG-139 43. RKP-625 44. RKP_626 45. RKN{80 46. RAC-290 4 7 . ** 48. 25D1276 49. 50. 51. RSAO62 52. RAC-291 53. RBH-955 54. RBM-O01 55. 56. REC-355 57. REC-369 58. BBZ30P080FZK 59. PMA3OPO6OFMC 60. Connector 10P Push switch assembly Connector 4P Connector 6P MIC jack Push knob Transistor assembly (F) Transi stor Transistor assembly (E) Power switch assembly D.C. power switch Power knob Earth spring Rivet Main chassis Sliding stopper Foot assembly Screw Screw Plate 1 7 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 7 5 /fr lr€ I'u -A--65 S-ss . / l \ 28 1 8 TKr 77 IW' www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com @-so q6N< 6e< xo )'N}- &)1,*6efTA* Bt4, "p9-Ui-so 32 t t @ 48 f_65 il35 b\ T \ K "f,- I 77 --at' 1 9 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com Part List Mark No. Part No. Description Mark No. Part No. Description 1 . Eject lever 2. RBH-949 Eiect lever spring 3. RBH-951 Eject spring 4. RNL-261 Cylinder 5. REB447 O ring 1 7 . Head base 18. RBH€65 HB return spring 19. REB416 Shaft stopper 20. RN L-527 Reference pin 6. RNL-534 Piston 56. RBH-724 ldler pressure spring 7. RBK-175 Pocketspring 57. RNK-999 TU idler 8. RNL-525 Pocket ** 58. RXMO76 Motor assembly 9. Lock lever 59. Flywheel holder 10. RBH-948 Lock lever spring 60. Thrust receptacle 11. RNL-529 Detecter lever 61. RXB-717 Flywheel assembly 12. RSH{58 Slide switch ** 62. REB483 Capstan belt 13. Sideplate Lassembly 63. RNE-51 3 Cordclamper 14. RNH-219 Half spring U. Side plate R 15. RNL-524 Half recectacle 65. YS3OFUC Washer 16. RBH-778 Return spring 51. RXB-715 TU reel base assembly 52. RNLOsg Cam gear 53. RXB-723 Lever assembly 54. RBH€42 Lever spring 55. RXB-374 ldler arm assembly 66. YS3OFBT Washer 67. VCZ26PO9OF MC Screw 68. PMZ26P1OOFMC Screw 69. VCZ26P06OFMC Screw 70. YE4OFUC Washer 21 . RX B-71 6 Metal holder assembly 71 . R BFO5O Oil stop washer 22. RBH-794 HB drive spring 72. PMZ2OP1 50FMC Screw 23. Connector assembly 2P 73. |MZ20Y1 50FMC Screw * 2q. RPB-G)G Erase head 74. RNF-989 Spacer (0.1) (RPBO8S) 75. PMZ26P060FMC Screw ** 25. RPB-089 REC/PB head 76. PMZ26P030FMC Screw 26. RBH-723 Head adlust spring 77. YE2OFUC Screw 27. RNL-523 Sub head base 78. YS2OFBT Screw 2A. RKP€63 Connector assembly 6P 79. WA21D040D025 Washer A * 29. RKP-127 Plungersolenoid R 80. WA17D032D025 washer (RKP-l31 I 30. RNLO47 Solenoid arm 81. PMA26P040FMC Screw 31. Solenoid bracket R A * 32. RXP-126 Plungersolenoid F (RXP-130) 33. Solenoid bracket F 34. RBH-722 Gear lever return spring 35. RNL-OSl Gear lever A * 36. RXP-125 Plunger solenoid P (RXP-1 29) 37. Chassis assembly ** 38. REB468 Counter belt 39. PMS plate ** 40. RXB-720 Pinch arm assemblv 41 . RBH-89O Pinch pressure spring ** 42. REB446 Drive belt 43. RXB-376 Drive arm full assembly 44. RBH-725 FR spring 45. RXB-721 Reel base assemblv 46. RBH-727 Brake spring 47. Brake plate * 48. REB-187 Brake shoe 49. RNK-998 ldler gear 50. RXB-714 Supply reel base assembly www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 8. ELECTRICAL PARTS LIST NO?ES: o When otdering resdsfors, first conuert resistance values into code form as shown in the following examples. Ex. I when there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47h ohm (tolerance is shown by J = |Vo, and K = lOVo). 5 6 O n 5 6 x I O t 5 6 1 . . . . R D % P S E 6 U l . l 4 7 k e 4 7 x 1 0 . 4 7 3 . - . . R D % p S @ A A 7 0.5a oR, . . RN2H OBE/( r o 0 1 0 . . B S I P O 0 O k Ex' 2 When there are 3 effectiue digits (such as in highjr-ec-ision metal film resis- tors). 5.62h{, 562 x 100 5621. . . . RNV:SR trGltrmr c The $. mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. c For your Parts Stoch Control, the fast mouing items are indicated with the marhs ** and *. ** GENERALLY MOVES FASTER THAN *. This classification shall be adjusted by each distributor because it depends on model number , temperature, humidity, etc. Miscellaneous Parts List P.C. BOARD ASSEMBLIES Mark Part No. Symbol & Description Mark Part No. Symbol & Description RWX-637 RWX-638 RWX.639 Main Assembly (RWX-637) CAPACITORS Mark Part No. Main assembly DOLBY NR assembly Indicator assembly Volume assembly Sensing assembly Power switch assembly Transistor assembly ( E) Transistor assembly (F) coMA 102K 50 coMA 182K 50 coMA 103J 50 coMA 153J 50 coMA 223J 50 coMA 273J 50 coMA 393J 50 coMA 473J 50 coPA 332J 100 ccPSL 220J 50 ccPsL 101J 50 ccDsl 151 K 500 CKPYB 471 K 50 RCC-007 cosH 471J 50 c317, C318 c 3 1 9 c l 1 3 , C 2 1 3 cl17, C217 c 3 1 6 c124, C125, C224, C225 c126, C226 c310 c31 5 c105, cl 12, c205, C212 cl03, cl 11, c203, c211 c332. C333 c123,C223 c331 cl08, c208 Symbol & Description CKPYB 1O2K 50 CEANL 1OOM 16 CEA R47M 50 cEA 010M 50 CEA R1OM 50 CEA 4R7M 50 cEA 100M 16 cEA 330M 16 cEA 470M 16 cEA 470M 10 cE A 1 0 1 M 1 6 cEA 221M 6.3 cE A 3 3 1 M 1 6 cEA 331M 25 cEA 102M 35 cl04, cl06, Cl14, c204, c206, C214, c312, C313, C330 c107, C207, C327 c307, c308 c1 1 6, C21 6. C309 c303, c325, C326, c320 c305 c302 c301. c306 c115, C122, c215, C222, RCP-150 (RCP-195) RCP-149 (RCP-193) RCP-155 (RCP-200) cl01. c201 c102. c109, C202, C209 cl 19, C219 c118, C120, C121, C127, C218, c220, c221, C227, C31'l c321. C322 c304 CKDYF 1032 50 C314 CKDYF 473250 c323,C324 RESISTORS Note: When ordering resistors, conuert the resistance value into code form, and then rewrite the part no. as before. Mark Part No. Symbol & Description VR101 , VR201 Semi-fixed l22k-Bl VR102, VR2O2 Semi-fixed (1Ok-Bl VR3O1 , VR3O2 Semi-fixed (150k-B) c328, C329 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com Mark Part No. Symbol & Description RM5-104J8 R304 A RstLF trtrtrJ R340, R34r, R347, R34B a RD%PMF DotrJ R339, R343 RD1/4PMtrtrDJ Otherresistors SEMICONDUCTORS Mark Part No. Symbol & Description ** BA328 rc101 r* PM9002B tC102 ** TC4066BP tC103 (HD14066B) (M884066BM) (2SC2634NC) ** 2SC1740 0311-0313 (2SCl 740LN) ** 25C2240 0102, 0103, 0202, 0203 ** 2SA1015 0303, O308-R310 (2SA933LN) (2SA1 127NC) A ** 2sc2o6o 0304-0306 (25C2673) (25C1383NC) ** 2sc1815 0101. o1o4-o1o8, 0201, (2sc174oLN) o2o4-o2o8, o3o7 Mark Part No' RSR-035 RY3OI Reed relay RKP-624 Connector 10P RKP€25 Connector 4P RKP-626 Connector 6P RKP-628 Connector 3P (A) RKP-629 Connector 3P (B) RKP-630 Connector 3P (Cl DOLBY NR Assembly (RWX-638) CAPACITORS A RDY,PMF47IJ R417 RD74PM otrtrJ Other resistors Symbol & Description cEA O10M 50 C401, C501 cEA R10M 50 C410,C413, C510, C513 cEA R33M 50 C408,C414, C508, C514 cEA 100M 16 C403, C405, C411, C412, U15, e c503, c505, c51 1, c51 2, Cs1 5 cEA470M 16 C417 c E A 4 7 1 M 1 6 C 4 1 8 coMA 332K 50 C404,C504 coMA472J 50 C407,C507 coMA 153J 50 C406, C409, C506, C509 ccPsL 101J 50 C402,C502 OTHERS Mark Part No. Symbol & Description A * 1sB3s-1oo D301. D302, D304, D3o8-D310, D318, RESISTORS D319 D303, D3O5-D3O7, D311-D317 Note: When ordering resistors, conuert the resistance ualue into code form, and then rewrite the part no. as before 2D301 2D302 2D303 2D304 Mark Part No. Symbol & Description * BCP-149 (RCP-193) VR401 Semi-fixed (10k-B) * 1s2473 (us1 040) A wz-13s A Bz-13s A Bz-oso A wz-o44 swtTcHEs Mark Part No. Symbol & Description ** R KN-080 5101 . 5201 Mic jack ** RSG-139 5301 Push switch assembly SEMICONDUCTORS ** RKB-Ol8 5302 Terminal (LINE) ** RKN-082 5303 DC power jack Mark part No. symbol & Description COILS AND TRANSFORMERS Mark Part No. Symbol & Description RTF-123 L101 , L2Ol Coit (3.9mH) RTF-084 L1O2,L2O2 Trap coil RTF-057 L301 Line coil RTD-026 T301 Osc coil ** HA11226 1c401 ** TC4066BP 1C402 (HD140668) (M8840668M) ** 2sc1815 0401, o5o1 (2SC1740LN) (25C2634NC) * 1s2473 (usl 040) * 1M6o D401. D501 D402, D502 e2 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com OTHERS Mark Part No. Symbol & Description Power Switch Assembly CAPACITOR Mark Part No. RTF-138 RKP.6O6 L4Ol , L501 MPX filter Connector socket (14P1 Symbol & Description lndicator Assembly ( RWX-639) CAPACITORS Mark Part No. Symbol & Description SWITCH Mark A ** RsA-o62 Transistor Assembly (E) Mark Part No. CKDYF 473250 C901 Capacitor Part No. symbol & Description S901 Switch cEA 100M 16 cEA 470M 16 c601-c604 c605 RESISTORS Note: When ordering resisfors, conuert the resistance ualue into code fonn, and then rewrite the part no. as before. 116, Mark Part No. Symbol & Description Symbol & Description A ** 2sD1276 Transistor Assembly (F) Mark Part No. O1O01 Transistor SVmbol & Doscription RD%PM trDtrJ A RD%pMFogoJ SEMICONDUCTORS Mark Part No. R601-R606, R609 R607. R608 A ** 2sD1276 Ql 101 Transistor ** 8A6124 * L N 1 0 1 1 1 1 P * L N317GP * L N217RP SWITCHES Mark Part No. tc601, rc602 LED6O1, LED6O2 LED6O3, LED6O5 LED6O4 Symbol & Description Symbol & Description 9. PACKING 1. RHA-250 2, PRHOO1 3 . R D E O 1 0 4. RDG-045 5. RHG-539 6. RHX-031 7 . ** RSG-143 Volume Assembly Mark Part No. 5601-5606 Push switch Symbol & Description * RCV-104 VR8O1 Volume (20k-AI Sensing Assembly RESISTORS Note: When ordering resistors, convert the resistance ualue into code form, and then rewrite the part no. as before. Mark Part No. Symbol & Description RDz4PM trOtr J SEMICONDUCTOR R701, R702 Mark Part No. Symbol & Description Parts List Mark No. Part No. Doscription Pad Instruction note Connection cord DC power cord Packing case Sheet C Sheet ** cP-41 1B RTR701 Photo interrupter www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 3 1O.P.C. BOARDS CONNECTION DIAGRAM A B DOLBY Ass'y RWX-638 INDICATOR RWX -639 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com MA|N Ass,y RWX - 632 Qto4 Q2O4 oroS Qro6 a2o6 ato3qzoo Qro2 tc'or e2o5 qlo7e|o6 oao!(io7 q2oz q2o tcro3 etot eiot qro q! lP vR2Ot vFtoi vRa(t www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com I 8 7 QlOt Q:tOt QltO QaOT q30. !cro2 curo5 0!06 s t 2 0 l €RASE PREVENT DETECTOR TRANSISTOR Ass'y ( F) POWER SWITCH As3'y TRANSISTOR as3,y ( E) SENSOR Ass'y I 8 7 ERASE HEAO www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 11. SCHEMATIC DIAGRAM 3 l l n . - A - - L c h REC/P.I R P R c h REC/P, R P E RA S E R P B o r x B C D L S 3 O f - 5 g r ( r / Z w l S 3 O t - 2 S 3 O t - l M A I N A s s ' y R W X - 6 3 7 L I N E r , S t o t s r o r . 2 0 r : M c / N E S E L E C T O R l''"*: c toz to/t6 R338 560 zc32e tool t6 t s30r -9 O N _ O F F ? T Y L I N E I N P U T ( L ) w 2 ! r-' A ! L , R3ritg; ,l/f,,L- o", a 5 l ;;;l I 2 o k - a I a r I +---------H-r R E c L E V E L ! | | R c V - r 0 4 _ J I I VOLUME Ass'y ! | u / 2 , l l I c t 2 7 /50 t--;;; ll--;; | | .""r r":' * I-^*Iwx1lil I R4t7 4 r'* l + nt-w l o . e l c|05 2 ci6\uzwt ,i:ri" F D O L I C 4 0 1 1.... lo.o47 m l-E RroB 2ok lTr7 l i l 1 !.. I.:i L A T Afi + )to7 3/t6 l=l;; i r l1 Qros l ffi , crr3 o.ot .l - 1 l , R t o g i S . t f + C t l s R t l -rl-^^ EL ADJ l o r r s F l , : I i''o c l i k ) l to I - ' - - ser* trtrtF F t - :--l IJ F t - TA + !c+ro c.r/so ;4ll o/t6 t4 t4 t ? k c4l l- [-i::r'l t t D lE) * i le]) I R4O5 ' r 5 0 I o- I I I L - ,u Y{u'Y- ? + l -L '--t- | T r l 6---d-r l l ' l r - l i l I c404- F-.il tg/t6 R4OE 5 . 6 t f + l ' l J 'l ,l Lcqoi F*'lt t 2o.33 / 5 0 t :R4 t3 ' 4 7 1 l q nroz ! r o k I l \ 5 lo.6fl H F - l c t r t - | toop c t o S I 47Op : I t,, t 7_4 r l o . s I I R4o2 I 4.3k I t \ : I H F c402 lOOp ? 2 k R i l O 390k w R407 L R4t2 ' 3 . s k I czlo9 .oor5 B H EAD ) B - O 8 9 R l l 3 R U 4 e 1 1 r 47o rsok ;;il' I M w 3 w 4 -I I t I Inv Q 1 0 1 , 2 0 1 S W I T C H I N G I C l O I M I C A M P ( R E c - o N ) r c i o 3 s w r r c H r N G Q l O 2 , l O 3 , 2 O 2 , 2 O 3 ( " H " - O N ) E Q U A L T Z E R A M P Q 1 O 4 , 2 O 4 S W I T C H I N G ( N O R M * O F F ) L A C cQ74 33/t6 + L R333 t o k - ICrO: *E | , t-- I l - - - - - ' l s4r-.i | | t l . C 4 t 7 | 1 6 4 1 8 . --A---J L--A:- 47 /t6 47o/t6 I I C 4 0 1 H A 1 1 2 2 6 1 c 4 0 2 T c 4 0 6 6 8 P o r H D l 4 0 6 6 B o r M B 8 4 0 6 6 B M H : P L A Y B A C K ,I .- IC402 s l t z t + l "El' r r [- T - ltc T C 4 0 2 S W I T C H I N 4:_ts- I ICrO3 ( r,/4 ) I i I l . i R33 too T 1c402 t 4 / 4 1 IC402 . ( t / 4 1 tl R E R3 335 rO c325 too/r5 - 8 . t a f- l R : [ 't_ I r 3 34 t( j i i Q 4 0 1 , 5 0 t 2 S C 1 8 t 5 o r Z S C l 7 4 O L N o r 2 S C 2 6 3 4 N C D 4 O t , 5 0 1 1 5 2 4 7 3 o r U S I O 4 O D 4 0 2 , 5 0 2 1 M 5 0 R304 lOOl r - t - - 15,; l ) - 27I c330 o / t 6 R336 22k 1 *trF l = - l I I I qTCtOsQ/4| | I I -t__ : I IC rO: B/4 -5 D3r6 +) 7-os|5 r l : ( 2/41 t-------l I_l R2t3 R2r5 R2t4 , ,*,,," c2t8tJ @ + i i ",".+ :;J i. l*..o, I l: I t : I ?- | | csoo I T l l t f ' - t t i l 1 2 * - - - Q - r L + i r T i l t - + ; ^ ^ l t ^ l _ R 5 t 2 * Tisos --T--t nsrr I f nsrr ' l c 5 o 7 l I t I l + c 5 0 6 1 I r l 4 | + lc5o8 f-I J-a. c 5r R 5 t 4 0 c 5 i l ' R 2 r O R 2 | | R50 C5O5 R5OB II I _l _l B HEAD L r) x t I - O 8 9 L I N E I N P U T ( v R 2 ) l c22 I I l \ > c503 ! l t i J'uo. R209 R504 3l | --- is t l l L - - - d - - - J L 5 0 | R208 1IIIL i l I t - t___ r5 9 t 2 r 3 r o t l # r c 4ot ( z/?l r 3 o 3--l- ;N , - - - l uorr,%?fi.'r I I - * r o - , I o r i l + &4'I :{_-_-_tj I -l ail Hl L- O N o F F s 3 o r - r o : D o L B y L I N E P.L I )-r .2 l @ t ' s i l ,---twv----{ | V R 3 0 I t 5 0 k - B a@l c3 --r---"ww__--l I VR3O2 tso r 5 O k - B / S O 3 2 t/5oo -l I r' l ; - l lI ! l li ' L- '- ---,-l S 9 O l : P O W E R I I -ti::' ! | 2\oso r_____,.-l :329 too A 0 304 I c30 | tooo/ 3 5 R34l 5 6 0 ( r w ) -t- 'ai ! L laS Lq5 - Y ) I E I T e n o t | | 2 S O t 2 7 6 i r R E G U L A T O R I I I TRANSISTOR Ass'yl ( F ) | ) - - - - J A .0o.1 : z D 3 O I t o o , / t 6 R303 47k D 3 1 7 i-- t l L I = ar,"l o.o22l =cal; l o - R 3 3 2 | 4 3 1 2 ' 3 1 3 4 7 k I o s c I q s r l s w t r c H t N G | ( R E C * o N ) E-- \ J I HEAD I R30 r o l - o 9 6 P 8 - O 8 5 t r l iIII - J .d-trr- 3 O l l m + 1 + t t t !-@ losrz I t - R330 ; c 3 2 t l o o . t / 5 0 I c322 o . t / 5 0 I J c r a { n s r r $J9-' J"'* l a . 3 r 3 | ---| -J c 3 r 9 o.oot8 Q 3 r r R 3 2 8 6 8 0 3 ? O R32 2 ? R 3 0 l c302 330 330/25 4.7 lSO t- cgor ? I o.o47 | D ? P O l ' * [ 0 2 1 " ' i I a l i _-r ! WER I ITCH Ass'y I _ _ j I t"=4 C 3 0 6 7 tooo/' 3 5 l 3 4 i 470 l t w I f1 r- l L i f l la\ t E-'5f E 6 E 6 4 t r I i ? s o 1 ? 7 6 ! t R E G U L A T o R I I _ _ _ l I TRANSISTOR Ass'y I ( E ) i R 3 4 8 7 5 ( t w ) ,fi Ig zD30 3 A c309 4 7 / t o , A r ZD3 30 2 0 3 0 4 A /l\ ia s 3 o r - r - 3 0 r - 8 : T A P E S E L E C T O R 03r I METALf_ | | s 3 o 3 l < D C P O W E R I N c 307 47/t6 Cr02 i , A ! 3 2 1 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 6 5 4 NOTE: The indicated semiconductors ar only. Other alternatiue semicondu are listed in the parfs llsf. s t o t , 2 o l s 3 0 l T 3 0 l lto?r2o2 L 3 0 l R Y 3 0 I L rO t,2O I -| I C I O r 8 A 3 2 8 l c 1 0 ? P M 9 0 0 2 B r c 1 0 5 T c 4 0 6 6 B P o r H D 1 4 O 6 6 B or MB84O66BM Q l O l , l O 4 - l O B O 2 O l , 2 O 4 - 2 O 8 , 3 O T 2 5 C r 8 1 5 o r 2 S C l 7 4 O L N o r 2 5 C 2 6 3 4 N C Qlo2,1O3, 2O2 ,2O3 ? s c 2 2 4 0 Q 3 O 3 , 3 O 8 , 3 O 9 , 3 t O 2 S A t O t 5 o r 2 S A 9 3 3 L N o r 2 S A l 1 2 7 N C Q 3 O 4 , 3 O 5 , 3 0 6 ? s c 2 0 6 0 o r 2 5 C 2 6 7 3 o r ? S C l 3 8 3 N C Q 3 . f 1 , 3 1 ? , 3 1 3 2 5 C 1 7 4 0 o r 2 S C ' l 7 4 O L N l.' D301,3o�2,304, D 3 O 8 , 3 O 9 , 3 1 O , 3 t g I s R 3 5 - t O O A D 303, 305, 306, 307 D 3 l I - 3 1 7 15247 3 or US tO4O o3t9 .rsR35-{OO 2D301 WZ- t35 2 D 3 0 2 g z - 1 3 5 2D303 BZ-O5o� 20304 wz-o44 I . R E S I S T O R S : Ind,cated in Q,'AW, M : M a , ( F ) : t 1 % , 2 . C A P A C I T O R S : Indcated in capacitl Indlcation without 3 . V O L T A G E , C U R R E \_] , DC voltage f,- mA: DC current 4 . O T H E R S : { Signal route. @ Adlusting point. Trre A mark foun portance of the safe be sure to use parts o l( marked capacito This is the basic sch D I C A T O R A s s ' y ( 1 / 2 , R IC60l ,602 L E D 6 O I , 6 O L E D 6 0 3 , 6 0 L E D 6 0 4 !I ;,.l , i ! rlJ I )R Ass'y I :'_i t l ! i i R Ass'y I E ) | Q303 POWER OFF MUTE S E N S O R A s s ' y l----,;,"*";;--l t l L _ _ l I N D I C A T O R A s s ' y ( 2 / 2 ) 1" J: 1: 1 6 5 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com I B 7 I B 7 fied semiconductors are representatiue ones r alternative semiconductors may be used and n the parts trsf. ; - l External Appearance of Transistors and lCs 2SA933LN 2SC1740LN HAl 1226 2SA1015 2SC1815 Z5,CZ14O rype No 2s,C2673 .-J I f N D I C A T O R A s s ' y ( 2 / 2 ) ; ; - - l ,.|0r 3'18 c0A )6,307 r US lO4O r00 ' r 3 5 - r35 .050 '044 REC PAUSE PLAY STOP REW FF s606 s605 s604 s603 5602 560l D lc AroR 1t'' r -t] R w x - :.:_ _ L o t N o Type No - 2SA1127NC 2SC2634NC 2sc1 74o rYPe No hre Lot No 8A328 zSD1276 TC4066BP HDl40668 MB84O66BM PM9OO2B SWITCHES: M A l N A s s ' y S l O 1 , 2 O l : M l C , / L I N E S E L E C T O R M I C - L I N E S 3 O 1 - 1 - 4 : T A P E S E L E C T O R H I G H - N O R M S 3 O I . 5 - 8 : T A P E S E L E C T O R M E T A L - C r O z s 3 0 1 - 9 , 1 0 : D O L E Y O N - O F F 2SC1383NC Type No 2SC2060 Lot No 8A6124 R e c o r d i n g s i g n a l ' r o u t e IN DICATOR A s s 'y S 6 0 1 : F F S 6 0 2 : R E W 5 6 0 3 : S T O P S 6 0 4 : p L A y 5 6 0 5 : P A U S E 5 6 9 5 : R E C P O W E R S W I T C H A s s ' y S 9 O 1 : P O W E R O N - O F F O N - O F F O N - O F F O N - O F F O N - O F F O N - O F F O N - O F F S 1 2 0 1 : E R A S E P R E V E N T D E T E C T O R H O L E - N O H O L E The underlined indicates the switch position j D www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 12. ADJUSTMENTS 12.1 MECHANICAL ADJUSTMENTS Prior to starting mechanical adjustments, clean the capstan, pinch roller, idler and belt with an alcohol moistened swab. 12.1.1 Pinch Roller Pressure Adjustment 1. Put the tape deck into playback mode without loading a cassette half. 2. Gently push against the pinch roller arm with a tension gauge (service part no. GGK-047) and separate the pinch roller slightly from the capstan. (See Fig. 72-7). 3. Then ease the pinch roller back onto the cap- stan, and read the value when the pinch roller starts to rotate. If the reading fails to lie between 2009 and 3509, replace the pinch pressure spring (part no. RBH-890). Tension gauge (Part No. GGK-047) Capstan Pinch roller Pinch roller arm Pinch pressure spring (Part No. RBH-890) Fig. 12-1 Pinch roller pressure adjustment 12.1.2 Reel Base Torque Adiustment Measure the reel base torque during playback, fast forward and rewind modes with a cassette type torque meter (service part no. GGK-056). The measured values should lie within the ranges listed below in Table 1. If the measured values lie outside these ranges, replace the supply reel assembly (parb no. RXB-714), take-up reel assembly (part no. RXB-715) or the drive arm full assembly (part no. RXB-376). Table 1 TU reel base ass'y Supply reel base ass'y Playback mode 36 - 6Og.cm 2 - Sg.cm Farst forward mode 85 - 125g.cm 2 - Sg.cm Rewind mode * 2 - Sg.cm 85 - 125s.cm NOTE: * denotes bach tension torque. 30 12.1,3 Tape Speed Adjustment 1. Connect a frequency counter to the LINE OUTPUT terminals. 2. Playback the SkHz portion of the STD-301 test tape. At the beginning of the tape, the fre- quency should Iie between 2995Hz-3O7O Hz, and may be adjusted by turning the varia- ble resistor located in the capstan motor adjustment hole shown in Fig. 12-2. Turning clockwise increases tape speed, while turning counterclockwise decreases the speed. Tape speed increased Tape speed decreased e screwdr:iver Fig. 12-2 Tape speed adjustment 12.1.4 FF Solenoid Adjustment 1. Put the deck into fast forward mode. 2. Loosen screw O *d adjust the mounting position of the FF solenoid (plunger solenoid F) so that the square hole in the full reel base assembly is flush against the boss of the drive arm full assembly. (See Fig. 12-3) 12.1.5 REW Sole.noid Adjustment 1. Put the deck into rewind mode. 2. Loosen screw €) and adjust the mounting position of the REW solenoid (plunger solenoid R) so that the square hole in the full reel base assembly is flush against the boss of the drive arm tull assembly. (See Fig. 12-3). / L \ Capstan motor www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com REW position Contacting Supply reel base assembly FF solenoid (plunger solenoid F) Boss (Driving arm full assemblyl FF position Contacting TU reel base assembly ldler gear I FF Mode Supply reel base assembly REW solenoid (plunger solenoid Rl ldler =L gear Fig. 12-3 FF and REW solenoid adjustment HiKq D# - Drive gear www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 12.2 ELECTRICAL ADJUSTMENT o Check the following points before starting any electrical adjustments. 1. All mechanical adjustments must be completed. 2. Clean the heads and demagnetize the erase head. 3. Level measurements are based on OdBv : 1V. Connect a 50kQ dummy resistor (47k- 52kO) across the OUTPUT terminals. 4. Use the specified test tapes for each adjust- ment. Although test tapes have both A and B sides, use the side with the lable (side A). 9. Proceed according to the specified adjustment sequence. Changing the sequence can prevent proper adjustments from being carried out, and subsequently result in loss of performance. Adjustment sequence 1. DOLBY NR level. 2. Head azimuth 3. Playback level 4. Playback equalization check 5. Level meter check 6. Record/playback frequency response 7. Recording level L E V E L ( d B ) STD-341A STD-608A STD-603 STD604 Playback adjustments NORMAL blank tape CrO2 blank tape METAL blank tape Prepare the following measuring equipment. AC millivoltmeter, audio oscillator, attenuator, and oscilloscope. Unless otherwise specified, always adjust for both left and right channels. Unless otherwise specified, adjust with the DOLBY NR switch in the OFF position. Let the deck warm up for a few minutes before starting adjustments. Also leave the deck in playback and recording mode respectively for 3 to 5 minutes before starting playback and recording frequency response adjustments. 1 Oosec 1 Oosec so.ec 1 OOsec Fis.12-4 STD-341A test tape 5. 6 . 7 . 8. V R 2 0 1 - { : ( P B L E V E L R ) \ vnrol @ @ (PB LEVEL L} vR102-------@ (REc LEVEL LL@J vR202' ( R E C L E V E L R ) 32 Fig. 12-5 Adlustment.points www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 12.2.1 Settings AC mV DOLBY NR Level Adjustment meter .. Connect to DOL L (L ch) and DOL R (R ch) Input signal Tape selector . . Mode 2kHz, - 10dBv (316mV) to LINE INPUT NORM Record ?NAZ - l & 8 v ( 3 r t u v ) I -3ftav ( 3 1 6 n v ) Fig. 12-6 DOLBY NR level adjustment Procedure 1. A