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SERVICE MANUAL

1. 7 Frott Panel Section sana ka seta batam abya 7 Tape Mechanism Deck 230 41 230 41 8 LEAF SW Board HEAD A Board HEAD B Board iii a a an TK 8 TEST MODE uu ie 9 MECHANICAL ADJUSTMENTS 10 ELECTRICAL ADJUSTMENTS 10 DIAGRAMS Note for Printed Wiring Boards and Schematie Diagrams a u D 13 Schematic Diagram MAIN Section 1 2 14 Schematic Diagram MAIN Section 2 2 15 Printed Wiring Board MAIN Section 16 Schematic Diagram LEAF SW Section 17 Printed Wiring Board LEAF SW Section 17 Schematic Diagram PANEL Section 18 Printed Wiring Boards PANEL Section 18 IC Pin Function Description 19 EXPLODED VIEWS General Secon vrsio Ga Cato en bcd 21 Front Panel Section iui 22 Tape Mechanism Deck Section 1 TICM 230AWR41 230MWR41 23 Tape Mechanism Deck Section 2 TCM 230AWR41 230MWR41 24 ELECTRICAL PARTS LIST 25 Notes on chip component replacement Never reuse a disconnected chip component Notice that the minus side of a tantalum capacitor may be dam age
2. 02 jh TP392 p421 220 A FWD U C395 AN 4 4 10 50V D306 D307 CHASSIS ZZ 11 52 2 11 52 2 c368 T2 T gt T G I aw ejeje zug D308 D309 le mo B 11ES2 NTA2B f 11ES2 NTA2B RV351 R356 E KA Oo REL LEVEL 51 8 G359 R CH Wu 8 s IL T 153 R355 C354 0 1 227 NS 12 REGULATOR lt 3 IC320 H BA12T 9 Q391 Q393 AN 25 1116 2581116 AJ I 0 R360 0391 394 take TRIGER 0 0047 DRIVE 9V REGULATOR BATAAN 28D1387 ee O uia NJM7809FA 71 TP320 CAPSTAN MOTOR CAPSTAN CAPM SPEED CONTROL MOTOR DRIVE TP321 res TP322 gt S u LJ 9 SR TP324 TRG GND Qm lt 4 A SHUT J D GND A HALF BOARO 5V CN1001 17 1207170 B SHUT LEVEL APLAY O1p332 lt 6 SHIFT 5 A PLAY SW M z STAT 10 tL 19 TP334 50V T B 120 170 K BPLAY TP335 B PLAY SW 7 TP336 lt METAL 8 15 15 53 7 4 PRINTED WIRING BOARDS MAIN Section See page 13 for Circuit Boards Location x 31 2 jj 8 44 5 6 7 68 59 0 Location Location A Page 18 TC PANEL B DECK BOARD 0304 HEAD A BOARD F 3 NO312 C335 T301 C C 1 MAIN BOARD 1 Epi Gi JW307 4 JW305 7 JW803 d 1 L S LL a an C377 4 DIT T T A
3. m R56 R323 R327 JW334 b R300 C310 28308 R304 0369 C307 C345 3D TPI 302 203 ad JW338 0305 4 gIWI JW34 m 0352 S S 2 Is zs IS S S e re 309 G AA 9 R319 7256 0 1 C351 01 R318 9 F 9 0398 2 51 5 655 RIK JW353 PV 399 ZEE DE R316 P7 de SNo ean JW383 JW354 CAUTE uas C355 JW355 C360 R314 315 JT R313 7 17 e ve 351 2 ei Sp 6315 6343 316 R311 JK gt JW35o 841510344 RAQTR408 R409 dy JH R413 R414 4 JW369 nina 56 6358 R340 2 412 396 l 6397 3k JW368 SIE 8 8 5 8 R357 aa 2g R406 0394 e JW370 SYSTEM CONTROL 5 1 CN309 5 1 10 N C417 JW371 i ei i 8 8 CDP S3 MCE VS77 9 D306 0308 p 401 4 di C389 JW381 07 ke JW374 ne C44 e 6 Kg C415 JW375 JK R419 JW372 JW376 x C390 CHASSIS IC320 IC321 D309 0307 T 2 here are a few cases that the part printed on SYSTEM CONTROL 4 this diagram isn t mounted in this model CHASSIS ST S5 S3 VS77 16 16 53 7 5 SCHEMATIC DIAGRAM LEAF SW Section 1 2 3 4 6 7 8 LEAF SW BOARD M901 _ I is CAPSTAN oe MOTOR B MOTOR CONTROL RVI002 C SV D IC1001 E REEL DETECT A 120 70 a ll LL REC A B H
4. 1uF 2090 50V D1001 9 719 911 19 DIODE 155133 72 0302 1 130 479 00 MYLAR 0 0047uF 5 50V D1002 9 719 911 19 DIODE 155133 72 0303 1 136 165 00 0 1uF 590 50V 0304 1 136 165 00 0 1uF 590 50V PHOTO INTERRUPTER 0305 1 126 959 11 0 4741 20 50V IC1001 8 749 014 38 PHOTO INTERRUPTER 56 264 C306 1 126 960 11 ELECT 1uF 2090 50V 101002 8 749 014 38 PHOTO INTERRUPTER 56 264 0307 1 126 960 11 1uF 2090 50V 0308 1 126 964 11 10uF 2090 50V lt TRANSISTOR gt 0309 1 137 194 11 0 47uF 590 50V 0310 1 162 290 31 CERAMIC 470PF 10 50V 1001 9 729 029 56 TRANSISTOR DTA144ESA TP C311 1 126 964 11 ELECT 10uF 2090 50V lt RESISTOR gt 0312 1 126 959 11 0 47uF 2090 50V 0313 1 162 294 31 0 001uF 10 50V R907 1 247 879 11 CARBON 100K 5 1 4W 0314 1 126 964 11 10uF 2090 50V R1001 1 249 409 11 CARBON 220 5 1 4W 0315 1 126 963 11 4 7uF 20 50V R1002 1 249 409 11 CARBON 220 5 1 4W R1003 1 249 414 11 CARBON 560 5 1 4W 0316 1 126 933 11 100uF 2090 16V R1004 1 247 834 11 CARBON 1 3K 5 1 4W C317 1 104 665 11 ELECT 100uF 2090 10V C318 1 126 964 11 ELECT 10uF 2090 50V R1005 1 247 818 11 CARBON 300 5 1 4W 0319 1 126 961 11 2 24 20 50V R1006 1 247 864 11 CARBON 24K 5 1 4W 0320 1 126 961 11 2 2uF 2090 50V R1007 1 247 780 00 CARBON 7 5 5 1 4W 25 53 Ref No 0321 0322 0323 0324 0326 0327 0328 0329 0330 0332 0333 0334
5. 24 lt lt lt S CN308 5P TCREC L 00004 SVSTEM CONTROL 4 AGND FROM B KA Tr TCREC R RV301 5 l gt gt BEL LEVEL 2 83 C417 L CH 9 0 1 EPT300 S 5 o e e T b 8 8 8 5 10 4 Te SYSTEM CONTROL Dm m 2 C PT8300 S a o 01 ji _ O EQ if DOLBY B NR NR TP378 0 BOLBY 0 5 1C301 RM TP379 9 0 0 5 HA12226F D BIAS TP380 V 0 0 5 CN309 5P N H TP381 0 x5 TP318 na TP382 0 TP372 1 77 TP303 C301 BHALF 2 1 R300 e O O O o ALC TP383 0 0 5 5 TP373 BPLAY 26 R413 100 TP302 T pov 22k 5 BSHUT 5 TP384 0 0 5 0 5 5 TP374 APLAY m 25 R414 100 TP301 gt R308 coo 5 0 8 0 8 e iW TO ASHUT T3 um 4 6 0 4 6 REC PB PAS AW 5 0 5 5 2 7 2 7 0 1 100 00047 0 DOLBY 5 DATA OUT E Y3 R407 100 TP310 C320 n 9 9 0 0 4 6 R313 10k A DATA IN 2 RM W0FF 22 AW YA R408 100 TP311 2 ae C317 100 10V 135 8 R314 33k LED DRIVE CLK 3 21 MOTOR DRIVER Ys Rao 100 eatz R409 100 TP312 T5 50v Xs 0 0 5 BIAS gt gt SYSTEM CONTROL 5 0352 o NOR CROR i 0 19 TITTI o KEY 5 FROM T6 ERA BTRIG b CDP S3 MCE VS77 gt gt V 18 Y8 R417 100 TP315 0 ATRIG 2 2 50V UNREG HI MAIN M GND KEH F C351 R350 BOARD D 3 meno MIN 1 2 ay
6. R REC IC302 uPC1330HA DECK B REC mode INVERTER 120 Vp p 52 Vp p SWR1 GND SWP1 CONT GND VCC SWP2 GND SWR2 13 us 13 us Q301 303 collector REC mode VVV 1 Vp p 13 us 13 13 53 7 2 SCHEMATIC DIAGRAM MAIN Section 1 2 See page 13 for Waveforms See page 13 for IC Block Diagram 1 2 3 A 5 6 7 8 9 10 11 12 13 14 MAIN BOARD 1 2 gt Z NN IC303 C25 R334 R340 220 220 HEAD A DEC 10 8 1C304 C304 5 8 3 DECK B PB AMP 10 8 BOARD E 5 8 2 5 8 B B d CY 100p 1 C328 5 8 2 iss B B m 1C303 2 2 100p R333 580 0 0 1 304 2 2 130k R335 NJM4580MD D RV302 A 14 DECKA 2 2k 2 R331 R332 C323 dein NO313 100 5 6k 0 022 16V ry 3P L PB TP340 V C385 4 i SLS C321 L R330 x H C LT 9 2 7 bi 5 6k 0 022 bis R402 E H 16V 1 5k 8 i R371 R373 ii ka a hea 100 130k e T C371 L R370 T5 o 390p T 120k gt gt R403 MECHANISM DECK CHASSIS 820 j 4 0972 5 8 5 jet p lt 7 D 230MWR41 gt R374 NITET 1C303 1 2 NJM4580MD D 7 an 901 i E 8 REC PB ERASE E L PB OT EN O Q Q L REC TT HH E i 5 ses gr E
7. 1 771 410 21 1 771 410 21 1 771 410 21 Description Remark TC SUB PANEL B BOARD K K K K K K K K K K K K K K K lt RESISTOR gt CARBON 1K 5 1 4W CARBON 1 2K 5 1 4W CARBON 1 8K 5 1 4W CARBON 2 1K 5 1 4W lt SWITCH gt SWITCH TACTILE REG PAUSE START SWITCH TACTILE CD SYNC SWITCH TACTILE HI DUB SWITCH TACTILE EDIT R R KR KK K K K K K K K K K K 2 6 HP901 1 773 048 11 1 757 632 11 MISCELLANEOUS KOK K K K K K K K K K K K K WIRE FLAT TYPE 17 CORE CORD WITH CONNECTOR 15P A 2004 771 A BASE A ASSY HEAD HRPE901A 2004 772 A BASE B ASSY HEAD M901 PM901 PM902 1 454 887 32 1 454 887 32 X 3378 241 1 MOTOR ASSY CAPSTAN SOLENOID PLUNGER SOLENOID PLUNGER K 2k gt K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K 7 685 646 79 7 685 953 04 685 871 01 628 254 05 7 623 921 01 K K K K K K K K K HARDWARE LIST KOK K K K K K K K K K K K K SCREW BVTP 3X8 TYPE2 N S SCREW BVTT 2X6 S SCREW BVTT 3X6 S SCREW PS 2 6X5 RING RETAINING CAPSTAN 53 29 53 REVISION HISTORV Clicking the version allows vou to jump to the revised page Also clicking the version at the upper right on the revised page allows vou to jump to the next revised page Description of Revision
8. 50 19 20 21 DOLBY NR 49 19 20 EDIT 8 21 HI DUB 47 20 REC PAUSE START 45 20 21 Deck p gt forward play 54 19 35 8 reverse play 19 35 stop 52 19 P P l fast forward go forward 56 19 4 1 4 rewind go back 19 eject 51 19 Deck B p gt forward play 41 19 20 35 4 reverse play 42 19 20 35 stop 43 19 20 P P l fast forward go forward 39 19 44 144 rewind go back 19 4 eject 44 19 1 SYSTEM CONTROL 5 connector FROM CDP S3 MCE VS77 2 SYSTEM CONTROL 4 connector FROM ST S5 S3 VS77 Remote Control CD 2 14 15 CHECK 151 15 CLEAR 6 15 CLOCK TIMER SELECT 30 CLOCK TIMER SET 18 13 21 29 DBFB 115 23 DISPLAY 1221 13 16 18 29 35 D SKIP 4 14 ENTER 25 10 12 13 15 17 18 21 22 26 30 EQ 13 27 EQ ON OFF 14 10 28 FUNCTION 24 10 14 15 20 21 31 GROOVE 21 23 SET UP 12 10 12 26 28 29 SLEEP 7 29 SUR 223 25 TAPE lt gt 81 19 35 TAPE lt gt 30 19 20 35 TUNER BAND 29 17 TUNING 9 17 TUNING 26 17 TV CH TV VOL TV I O TV VIDEO 1 VOL BUTTON DESCRIPTIONS I CO power pause stop l co back gt forward 44 rewind PP fast forward 9 lt gt 53 53 SECTION 3 DISASSEMBLV e
9. e 3 GI T Y REC PB SWITCH RECIPE SWITGH CONTROL 7 IC302 TI uPC1330HA 5 8 DECK CHASSIS 5 g BNIA4M 11 9 Q305 F E 1 BATAAM MAIN y BOAR HEAD B 2 2 BOARD _ Page 15 L m S l G T2 T7 lt lt C382 R321 L302 3 gt NA 10 0 05 3 11 9 22080 1 220k 220k Eee 2 0901 RV354 RV304 REC BIAS REC BIAS REC BIAS 2 0 Q5 3 PONTROL ti R CH L CH e 0 00 4 l L 384 C334 0302 T 27 27 25 2001 22 0 0 0310 25 2785 p 1 sa LEVEL SHIFT 4 9 l 302 303 2 C335 CX C336 BIAS OSC cas E 100V 50V I 0 90 1303 J CN314 220u H 4 gt 7P 5 gt T o meme _ R386 270 Y6 5 We TP407 B REV NO304 EN M O TP408 A REV gt K Page 18 gt 2 The components identified by mark A or dotted line with mark are critical for safety Replace only with part number specified 53 7 3 SCHEMATIC DIAGRAM MAIN Section 2 2 15 16 17 18 19 20 21 22 23 24 25 26 21 28 23 30 31 MAIN BOARD 2 2
10. head B board screw PTT 2 x 4 lt o i b screw PTT 2x 4 53 SECTION 4 TEST MODE Note Use following buttons in the test mode no mark Button of Tape unit TC S3 Button of amplifier unit TA S7AV or TA S3 2 Button of CD unit CDP S3 MC Test Mode Enter the MC Test Mode Procedure 1 Press thel D F button to turn the power on 2 While pressing the both PLAY MODE and B buttons press the DISC 3 button 3 GROOVE indication blinks on the fluorescent indicator tube in the midst of MC test mode Releasing the MC Test Mode To release from this mode press 0 xl button or disconnect the power cord IDECK Test Modej In the DECK test mode it operates as follows Cancellation of the linear mute of DOLBY IC IC301 e It become cancellation automatically when it is possible to en ter a MC test mode AMS checking Procedure Enter the MC test mode Insert a test tape AMS 110A or AMS 120 to Deck A Set TAPE A function Press the button to enter the AMS test mode After a tape is rewound first the FF AMS is checked and the mechanism is shut off after detecting the ASM signal twice 6 Then REW AMS is checked and the mechanism is shut off after detecting the AMS signal twice 7 When the check is complete a message of either OK or NG appears To check an AMS of the B deck select TAPE B function After that press CD SYNC s sU peres A
11. 31 1 162 282 31 1 162 282 31 1 162 282 31 1 126 964 11 1 126 935 11 1 164 159 11 1 164 159 11 1 566 856 11 1 794 569 11 1 580 176 11 1 784 778 11 1 568 934 11 8 719 024 99 8 719 200 82 8 719 024 99 8 719 200 82 8 719 024 99 8 719 200 82 8 719 024 99 8 719 200 82 1 537 738 21 1 537 738 21 8 759 652 02 8 759 143 54 799 710 959 9 729 710 59 6 800 467 01 6 800 467 01 8 59 394 35 9 199 11 59 1 410 780 11 1 414 193 41 1 414 193 41 1 410 780 11 8 729 801 93 8 729 142 46 8 729 142 46 Description ELECT ELECT ELECT ELECT ELECT ELECT CERAMIC CERAMIC CERAMIC CERAMIC ELECT ELECT CERAMIC CERAMIC lt CONNECTOR gt SOCKET CONNECTOR 5P 10uF 470uF 10uF 470uF 10uF 10uF 100PF 100PF 100PF 100PF 10uF 470uF 0 1uF 0 1uF 20 20 20 20 20 20 10 10 10 10 20 20 Remark 50V 16V 50V 16V 50V 50V 50V 50V 50V 50V 50V 10V 50V 50V SYSTEM CONTROL 4 PIN CONNECTOR 5P SYSTEM CONTROL 5 PIN CONNECTOR 10P SYSTEM CONTROL 5 CONNECTOR FFC 17P PIN CONNECTOR 7P lt DIODE gt DIODE DIODE DIODE DIODE DIODE DIODE DIODE DIODE 11ES2 NTA2B EXCEPT TH 11ES2 NTA1B TH 11ES2 NTA2B EXCEPT TH 11ES2 NTA1B TH 11ES2 NTA2B EXCEPT TH 11ES2 NTA1B TH 11ES2 NTA2B EXCEPT TH 11ES2 NTA1B TH lt GROUND TERMINAL gt TERMINAL EARTH TERMINAL EARTH lt C gt IC HA12226F IC uPC1330HA IC NJM4580D
12. 4W Ref No R349 R350 R351 R354 R355 R356 R357 R358 R359 R360 R361 R362 R363 R364 R367 R368 R369 R370 R371 R372 R373 R375 R376 R377 R378 R379 R386 R402 R403 R404 R405 R406 R407 R408 R409 R412 R413 R414 R415 R416 R417 R418 R419 R420 R421 R422 R423 RV301 RV302 RV303 RV304 RV351 RV354 Part No 1 249 425 11 1 249 433 11 1 249 421 11 1 249 427 11 1 249 429 11 1 249 430 11 1 247 843 11 1 249 435 11 1 249 417 11 1 249 417 11 1 249 417 11 1 249 417 11 1 249 437 11 1 249 417 11 1 249 417 11 1 249 418 11 1 249 413 11 1 247 881 00 1 247 807 31 1 249 426 11 1 247 882 11 1 247 881 00 1 249 409 11 1 249 433 11 1 249 430 11 1 247 889 00 1 249 410 11 1 249 419 11 1 249 416 11 1 249 419 11 1 249 416 11 1 247 807 31 1 247 807 31 1 247 807 31 1 247 807 31 1 247 807 31 1 247 807 31 1 247 807 31 1 247 807 31 1 247 807 31 1 247 807 31 1 249 414 11 1 249 417 11 1 249 409 11 1 249 409 11 1 249 409 11 1 249 409 11 1 241 764 11 1 241 762 11 1 241 762 11 1 241 768 11 1 241 764 11 1 241 768 11 Description CARBON 4 7K CARBON 22K CARBON 2 2K CARBON 6 8K CARBON 10K CARBON 12K CARBON 3 3K CARBON 33K CARBON 1K CARBON 1K CARBON 1K CARBON 1K CARBON 47K CARBON 1K CARBON 1K CARBON 1 2K CARBON 470 CARBON 120K CARBON 100 CARBON 5 6K CARBON 130K CARBON 120K CARBON 220 CARBON 22K CARBON 12K CARBON 270K CARBON 270 CARBON 1 5K
13. BOARD R1008 1 249 417 11 CARBON 1K 5 1 4W KOK K K K K K K K K K K K K lt VARIABLE RESISTOR gt lt CONNECTOR gt RV1001 1 241 785 11 RES ADJ CARBON 10K 1 564 719 11 PIN CONNECTOR SMALL TYPE 3P RV1002 1 241 785 11 RES ADJ CARBON 10K KKK KKK K gt KK K K K K KK K K KK K K K K K K K K KK K K KK K K KK K K K K K K K K R K K K K K K K K K ok K K K K K lt SWITCH gt 1 676 221 11 HEAD B BOARD KE ERRE RE a 51001 1 570 953 11 SWITCH PUSH 1 KEY A PLAY 91002 1 570 953 11 SWITCH PUSH 1 KEY B PLAY lt CONNECTOR gt 51003 1 771 333 11 SWITCH LEAF A HALF 51004 1 771 205 11 SWITCH LEAF A 120 70 CN2 1 564 722 11 PIN CONNECTOR SMALL 6P 91005 1 771 205 11 SWITCH LEAF REC A K K K K K K K K K K K KK K K KK K K KK K K KK K KKK K K KK K K KK K K K K K K K K K K K K 51006 1 771 333 11 SWITCH LEAF B HALF A 2007 838 A LEAF SW BOARD COMPLETE 51008 1 771 205 11 SWITCH LEAF B 120 70 REEERE EEEE EREE S1009 1 771 205 11 SWITCH LEAF REC B KKK K gt k gt k K K KK K K K K K K K K KK K K K K KK K K KK K K KK K K KK K K KK K K KK K K KK K K K K K K K K K K K K lt CAPACITOR gt A 2007 873 A MAIN BOARD COMPLETE EXCEPT TH C1001 1 107 716 11 ELECT 33uF 20 10V A 4725 734 A MAIN BOARD COMPLETE TH KOKK K K K K K K K K K K K K K K K K K K lt CONNECTOR gt 7 685 646 79 SCREW BVTP 3X8 TYPE2 N S CN1001 1 568 860 21 SOCKET CONNECTOR 17P lt CAPACITOR gt lt DIODE gt 0301 1 126 960 11
14. D IC NJM4580D D IC PT8300 S IC PT8300 S IC BA12T IC NJM7809FA lt COIL gt INDUCTOR INDUCTOR INDUCTOR INDUCTOR 2 uH 220uH 220uH 2 uH lt TRANSISTOR gt TRANSISTOR 2501387 34 TRANSISTOR 25G2001TP LK TRANSISTOR 25C2001TP LK Ref No 0304 0305 0310 0391 0392 0393 0394 0395 0396 0400 R300 R301 R302 R303 R304 R305 R306 R307 R308 R309 R310 R311 R313 R314 R315 R316 R317 R318 R319 R321 R322 R323 R324 R325 R327 R328 R330 R331 R332 R333 R334 R335 R336 R337 R338 R339 R340 R341 A R342 A R343 R344 R345 R346 R347 R348 Part No 8 729 422 57 8 729 900 80 8 729 119 78 8 729 140 04 8 729 900 80 8 729 140 04 8 729 900 80 8 729 900 80 8 729 801 93 8 729 142 46 1 249 433 11 1 249 421 11 1 247 807 31 1 247 807 31 1 249 427 11 1 249 429 11 1 249 430 11 1 247 843 11 1 249 433 11 1 247 903 00 1 247 884 11 1 249 441 11 1 249 429 11 1 249 435 11 1 249 429 11 1 249 429 11 1 247 893 11 1 249 418 11 1 249 425 11 1 249 430 11 1 249 437 11 1 249 425 11 1 249 429 11 1 249 437 11 1 249 425 11 1 249 437 11 1 247 881 00 1 247 807 31 1 249 426 11 1 247 882 11 1 249 409 11 1 247 881 00 1 249 409 11 1 249 433 11 1 249 430 11 1 247 889 00 1 249 409 11 1 249 430 11 1 212 851 00 1 212 851 00 1 249 432 11 1 249 432 11 1 249 426 11 1 249 433 11 1 249 409 11 Description TRANSISTOR TRANSISTOR TRANSISTOR TRANSI
15. P4 o LED drive signal output of the B FWD indicator D302 L LED on O Notused connectedtopin 0 0 P2 0 LED drive signal output of the B REV indicator D303 L LED on Pl O Notused connectedtopin III P0 0 LED drive signal output of A REV indicator D301 L LED on P9 O Notused connectedtopin S BRB o LED drive signal output of the A FWD indicator 0300 L LED on LATCHO O S O O Notused open S y O DO O Notused open O P7 P3 O Notused open 20 NIN r2 B L2 OOT AI an Un pa TG Not used connected to 0 P TO Capstan motor on off control signal output terminal motor on om o High normal speed selection signal output of the capstan motor H normal speed L high speed Do O sera data oporo me OOOO Powersupply terminal 53 SECTION 8 EXPLODED VIEWS NOTE e XX and X mean standardized parts so they Items marked are not stocked since they may have some difference from the original are seldom required for routine service Some one delay should be anticipated when ordering Color Indication of Appearance Parts these items Example The mechanical parts with no reference num KNOB BALANCE WHITE RED ber in the exploded views are not supplied T T e Hardware mark
16. This set can be disassembled in the order shown below 3 1 DISASSEMBLY FLOW SET 3 2 COVER Page 6 9 3 3 BOARD 3 4 FRONT PANEL 7 7 3 5 MECHANISM DECK TCM 230AWR41 230MWR41 Page 8 3 6 LEAF SW BOARD HEAD A BOARD HEAD B BOARD Page 8 Note Follow the disassembly procedure the numerical order given 3 2 COVER Remove the cover in the three screws direction of arrow BVTP3 x 8 two screws case 3 TP2 two screws Gy case 3 TP2 53 3 3 MAIN BOARD 0 three connectors CN309 310 314 Q wire flat tvpe 17 core CN311 three screws o BVTP3 x 8 Q screw BVTP3 x 8 Q MAIN board O connector CN1 ka d SS PC board holder connector CN2 3 4 FRONT PANEL SECTION Q wire flat type 17 core CN311 connector I CN314 Q screw BVTP3 x 8 Q two claws connector 1 connector CN2 0 three claws Q three screws BVTP3 x 8 53 3 5 TAPE MECHANISM DECK TCM 230AWR41 230MWR41 0 five screws lug BVTP2 6 x 8 O tape mechanism deck TCM 230AWR41 230MWR41 A Open the cassette holder L R 3 6 LEAF SW BOARD HEAD A BOARD HEAD B BOARD O five claws LEAF SW board Q Remove the four solderings Q head A board 6
17. list is given in the last of Parts Color Cabinet s Color the electrical parts list e Abbreviation AUS Australian model MX Mexican model EA Saudi Arabia model SP Singapore model KR korean model TH Thailand model 8 1 GENERAL SECTION not supplied Front panel section 0 1 Ref No Pari No Description Remark Ref No Part No Description Remark 1 4 924 098 01 HOLDER PC BOARD 6 1 757 632 11 CORD WITH CONNECTOR 15 2 1 773 048 11 WIRE FLAT 17 CORE 7 4 233 093 01 PANEL TC BACK AEP UK 3 A 2007 873 A MAIN BOARD COMPLETE EXCEPT TH 7 4 233 093 11 PANEL TC BACK AUS EA KR 3 A 4725 734 A MAIN BOARD COMPLETE TH 7 4 233 093 21 PANEL TC BACK SP 4 3 363 099 21 SCREW CASE 3 TP2 T 4 233 093 31 PANEL TC BACK MX TH 5 4 232 336 31 COVER 8 4 965 822 01 FOOT 21 53 8 2 FRONT PANEL SECTION 22 55 Part No 4953 607 1 4953 606 1 4 233 091 01 4 233 090 01 4953 605 1 4 233 094 01 4 900 988 01 3 019 456 11 Description Remark PANEL ASSY FRONT HOLDER R ASSY CASSETTE SPRING R TORSION SPRING L TORSION HOLDER L ASSY CASSETTE EJECT L BUTTON EJECT LEVER L SCREW STEP TCM 230AWR4 1 230MWR4 1 Part No 4 951 620 01 4 900 889 01 4 215 062 01 1 680 719 11 1 680 721 11 1 680 722 11 1 680 720 11 4 233 095 01 Description Remark SCREW 2 6X8 BVTP EJECT LEVER R DAMPER TC PANEL A DECK BOARD TC SUB PANEL A BOAR
18. 0335 0336 0337 0338 0339 0340 0341 0342 0343 0344 0345 0346 0347 0348 0349 0350 0351 0352 0353 0354 0355 0356 0357 0358 0359 0360 0362 0363 0367 0368 0369 0370 0371 0372 0373 0374 0376 0377 0378 0379 0380 0382 C383 C384 C385 C386 26 Part No 1 162 289 31 1 162 282 31 1 136 157 00 1 126 933 11 1 162 289 31 1 104 665 11 1 162 282 31 1 136 153 00 1 126 933 11 1 162 283 31 1 162 288 31 1 162 209 31 1 137 150 11 1 126 961 11 1 136 155 00 1 130 481 00 1 130 481 00 1 136 156 00 1 126 960 11 1 104 660 11 1 164 159 11 1 164 159 11 1 164 159 11 1 164 159 11 1 126 964 11 1 164 159 11 1 126 964 11 1 126 964 11 1 126 960 11 1 130 479 00 1 136 165 00 1 136 165 00 1 126 959 11 1 126 960 11 1 126 960 11 1 126 964 11 1 137 194 11 1 162 290 31 1 130 479 00 1 130 479 00 1 162 294 31 1 126 964 11 1 126 961 11 1 126 961 11 1 162 289 31 1 162 282 31 1 136 157 00 1 126 933 11 1 162 289 31 1 104 665 11 1 162 282 31 1 136 153 00 1 126 933 11 1 162 283 31 1 162 288 31 1 162 209 31 1 104 665 11 1 104 665 11 Description CERAMIC CERAMIC FILM ELECT CERAMIC ELECT CERAMIC FILM ELECT CERAMIC CERAMIC CERAMIC MYLAR ELECT FILM MYLAR MYLAR FILM ELECT ELECT CERAMIC CERAMIC CERAMIC CERAMIC ELECT CERAMIC ELECT ELECT ELECT MYLAR FILM FILM ELECT ELECT ELECT ELECT FILM CERAMIC MYLAR MYLAR CERAMIC ELECT EL
19. 410 21 SWITCH TACTILE B gt S315 1 771 410 21 SWITCH TACTILE F lt a S316 1 771 410 21 SWITCH TACTILE gt gt gt KK KKK KKK KK KK KKK K KKK KKK KK KK KKK KK KK KKK KK KK KK KKK K KKK R OR KK 1 680 720 11 TC PANEL B DECK BOARD gt k ok 2 ok gt K K K gt K K K K K K K K K K K K lt LED gt D302 8 719 058 03 LED SEL5423E TP15 B gt D303 8 719 058 03 LED SEL5423E TP15 lt RESISTOR gt R387 1 249 411 11 CARBON 330 5 1 4W R388 1 249 413 11 CARBON 470 5 1 4W R389 1 249 414 11 CARBON 560 5 1 4W R390 1 249 415 11 CARBON 680 5 1 4W lt SWITCH gt 5301 1 771 410 21 SWITCH TACTILE gt gt P 5302 1 771 410 21 SWITCH TACTILE F 44 5303 1 771 410 21 SWITCH TACTILE B gt 5304 1 771 410 21 SWITCH TACTILE 5305 1 771 410 21 SWITCH TACTILE K K KKK KKK KK KK KK KKK K KKK KKK KK KK KK KKK KK KK kk KK KK KKK OK Ok kk ok OR KK 1 680 721 11 TC SUB PANEL A BOARD K K gt K K K K K K K K K K K K lt RESISTOR gt R395 1 247 843 11 CARBON 3 3K 5 1 4W R396 1 249 425 11 CARBON 4 1K 5 1 4W R397 1 249 427 11 CARBON 6 8K 5 1 4W lt SWITCH gt S310 1 771 410 21 SWITCH TACTILE DOLBY NR S311 1 771 410 21 SWITCH TACTILE DIRECTION KE EE ER E E 9 KK K KK KK K K KK K K K K 28 Ref No R391 R392 R393 R394 S306 S307 S308 S309 Part No 1 680 722 11 1 249 417 11 1 249 418 11 1 249 420 11 1 249 422 11 1 771 410 21
20. ALF VO n wa mcm V O y ENDS E D PLAV Fl Rom t agan A PLAY B PLAY Voltages dc with respect to ground under no signal conditions ku no mark TAPE PLAV Bw A J TAPE REC G 7 6 PRINTED WIRING BOARD LEAF SW Section See page 13 for Circuit Boards Location L1 TO M901 LOADING MOTOR PM902 e Semiconductor A Nc Location Bad LEAF SW BOARD D1001 01002 IC1001 B IC1002 Q1001 D A Page 16 There are a few cases that the part printed on MA this diagram isn t mounted in this model 1 1 53 7 7 SCHEMATIC DIAGRAM PANEL Section 1 2 3 4 5 6 7 8 9 10 11 12 5306 PAUSE 5307 5308 5309 START CD SYNC HI DUB EDIT 5 uem I sv CON MAIN BOARD 1 2 Page 14 D302 303 BACK LIGHT i Oe 311 5310 DIRECTION DOLBY NR LED A REV D300 D301 LED A FWD SEL5423E T SEL5423E T P15 A P15 1 1 D300 301 BACK LIGHT 7 8 PRINTED WIRING BOARDS PANEL Section See page 13 for Circuit Boards Location N DGND m A FWD e Semiconductor Location a co eth C i I TEN TC SUB PANEL A BOARD R395 S Q S 18 18 T 9 53 PIN FUNCTION D
21. BOARD Component Side MD VIDEO AUDIO IN J601 ST S3 S5 SV7 2 2 DECIR e PB LEVEL V 23 8 dB 2 316 12 L d blank tape RV351 600 Q CN 123 REC LEVEL attenuator DU NES Il h 0 0 4 Mode Playback recorded portion REC BIAS R CH ser REC BIAS L CH MD OUT jack J601 5 Confirm the playback signal recorded in step 3 becomes ad justable level as follows LEAF SW BOARD Component Side If these levels are not adjustable level adjust the RV304 L NA 5 CH and RV 354 R CH on the MAIN board to repeat steps 4 NORMAL HIGH and 5 Adjustable level Playback output of 315 Hz to playback output of 10 kHz 1 0 dB Adjustment Location MAIN board REC Level Adjustment DECK B Procedure 1 Insert a tape into Deck B 2 After press button press REC PAUSE START button then recording start 3 Mode Record RV1002 RV1001 CN1001 MD VIDEO AUDIO IN J601 ST S3 S5 SV7 315 Hz 50 mV 23 8 dB AF OSC blank tape attenuator SS of II OO O d H oset 4 Mode Playback recorded portion PE level meter MD OUT jack J601 5 Confirm the play back signal recorded in step 3 becomes ad justable level as follows If these levels are not adjustable level adjust the RV301 L and 51 on the MAIN board to repeat steps 4 and 5 12 53 SECTION 7 DIAGRAMS 7 1 NOTE FOR PRINTED WIRING BOARD
22. CARBON 820 CARBON 1 5K CARBON 820 CARBON 100 CARBON 100 CARBON 100 CARBON 100 CARBON 100 CARBON 100 CARBON 100 CARBON 100 CARBON 100 CARBON 100 CARBON 560 CARBON 1K CARBON 220 CARBON 220 CARBON 220 CARBON 220 lt VARIABLE RESISTOR gt RES ADJ CARBON 10K RES ADJ CARBON 2 2K RES ADJ CARBON 2 2K RES ADJ CARBON 220K RES ADJ CARBON 10K RES ADJ CARBON 220K TC S3 Remark 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 2 53 MAIN TC PANEL A DECK TC PANEL B DECK TC SUB PANEL A TC SUB PANEL B Ref No Part No Description Remark lt TRANSFORMER gt 1301 1 423 980 11 TRANSFORMER BIAS OSCILLATION K K KKK KKK K KKK KK KK KK KKK KKK KK KK kk OK KK KK kk KK R OK OK KK OK Ok ok OK ok OR KK 1 680 719 11 TC PANEL A DECK BOARD K K K K K K K K K K K K lt LED gt D300 8 719 058 03 LED SEL5423E TP15 B gt D301 8 719 058 03 LED SEL5423E TP15 lt RESISTOR gt R398 1 249 429 11 CARBON 10K 5 1 4W R399 1 249 431 11 CARBON 15K 5 1 4W R400 1 249 434 11 CARBON 21K 5 1 4W R401 1 249 438 11 CARBON 56K 5 1 4W lt SWITCH gt S312 1 771 410 21 SWITCH TACTILE IB S313 1 771 410 21 SWITCH TACTILE S314 1 771
23. D TC SUB PANEL B BOARD TC PANEL B DECK BOARD EJECT R BUTTON 8 3 TAPE MECHANISM DECK SECTION 1 TCM 230AWR41 230MWR41 Note Two different types of tape mechanism are used depending on models They maintain compatibility as an entire mechanism even though there are some different parts are used Ref No 701 702 703 704 705 706 707 708 Part No 3 016 574 11 3 016 565 01 3 016 564 01 3374 156 4 3374 155 4 4 229 083 01 4 227 872 11 1 676 220 11 Description Remark SPRING HEAD TENSION BASE LEVER REV BASE PINGH LEVER FWD PINGH LEVER REV ASSV PINGH LEVER FWD ASSV SPRING CASSETTE LEAF SCREW PTT 2X4 GROUND POINT HEAD A BOARD TC S3 Ref No 709 710 713 901 Part No Description 1 676 221 11 HEAD B BOARD 2007 838 LEAF SW BOARD GOMPLETE 3 016 566 01 SLIDER REVERSE A 2004 771 A BASE A ASSY HEAD HRPE901A 2004 772 A BASE B ASSY HEAD PM901 PM902 1 454 887 32 SOLENOID PLUNGER 1 454 887 32 SOLENOID PLUNGER Remark 23 53 8 4 TAPE MECHANISM DECK SECTION 2 TCM 230AWR41 230MWR41 751 M901 Ref No 751 752 753 754 755 756 757 24 752 Part No Description 3 041 946 01 BELT CAPSTAN B 4 227 239 01 BELT CAPSTAN 3378 042 1 FLYWHEEL B FWD ASSV 3378 043 1 FLYWHEEL B REV ASSV 3378 040 1 FLYWHEEL A FWD ASSV X 3378 041 1 FLYWHEEL A REV ASSV 3 041 947 01 BELT FR Rem
24. ECT ELECT CERAMIC CERAMIC FILM ELECT CERAMIC ELECT CERAMIC FILM ELECT CERAMIC CERAMIC CERAMIC ELECT ELECT 390PF 100PF 0 022uF 100uF 390PF 100uF 100PF 0 01uF 100uF 120PF 330PF 27PF 0 01uF 2 2uF 0 015uF 0 0068uF 0 0068uF 0 018uF 1uF 47uF 0 1uF 0 1uF 0 1uF 0 1uF 10uF 0 1uF 10uF 10uF 1uF 0 0047uF 0 1uF 0 1uF 0 47uF 1uF 1uF 10uF 0 47uF 470PF 0 0047uF 0 0047uF 0 001uF 10uF 2 2uF 2 2uF 390PF 100PF 0 022uF 100uF 390PF 100uF 100PF 0 01uF 100uF 120PF 330PF 2 PF 100uF 100uF 20 20 20 20 5 5 5 20 20 20 20 5 10 5 5 10 20 20 20 10 10 5 20 10 20 10 5 20 10 10 5 20 20 Remark 50V 50V 90V 16V 90V 10V 90V 90V 16V 90V 90V 90V 100V 90V 90V 90V 90V 90V 90V 16V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 90V 50V 50V 50V 50V 50V 50V 16V 50V 10V 50V 50V 16V 50V 50V 50V 10V 10V Ref No C388 0399 0390 0391 0394 0395 0396 0397 0398 0399 0414 0415 0417 0418 CN308 CN309 CN310 CN311 CN314 D306 D306 D307 D307 D308 D308 D309 D309 EPT300 EPT302 10301 10302 10303 10304 1310 10311 10320 10321 L301 L302 L303 L351 Q301 Q302 Q303 Part No 1 126 964 11 1 126 935 11 1 126 964 11 1 126 935 11 1 126 964 11 1 126 964 11 1 162 282
25. ESCRIPTION e MAIN BOARD 10 8300 5 SVSTEM CONTROL OO D 5 8 e 11 2 mM ete COP NTT 2 AI SIN NAT NSS Ground terminal O Reset signal input terminal Not used AMS signal input terminal L AMS in Detection input from the deck A half detect switch H cassette in L no cassette 9 Detection input from the deck B play detect switch H deck B play L qe D Detection input from the deck A play detect switch H deck A play LATCHO O data ach pulse ouput ta the PT8300 50631 O Seria data transfer lok signat empan 0031 poi O Seria data opuro me PTEGOOS UCM 9 Tape deck relay control signal output to the ICD DO Serial data output to the CD player section CDP S3 Serial data input from the CD player section CDP S3 PULLUP P8 to P15 Control pin for pull up resisitor fixed at L LEE Power supplv terminal 5 P5 P4 P3 P2 PI DO2 DII VCC 53 e MAIN BOARD 11 8300 5 LED DRIVE DRIVER O N e e ejej e NINI 6258 D x VSS Ground termina 0 0 Reset signal input terminal Nor used PIS 0 Notused connectedtopin 2 CI Y 4 4 4 4 4 4 4 4 4 4 Oo
26. Ka 9 CNS14 TO HP901 E 6 e 327 e 6 dIl 7 mo 48008956 PB HEAB 326 0376 M iS R386 H 3 C386 4 2H c A JW3084 JW306 2 W304 d 0801 1302 ENG JW382 71 et CVO G A 9 JW302 H 4 5 Op in JU coo e SM R337 v 9 46 o5 9 31 9 R346 C371 R379 R348 R347 C302 RV354 6 AA a C328 6 9 o o qa 332 Cage 0304 B 6 pod 8339 AA T O 0310 8367 O5 eo C372 0305 C350 4 6 eum R338 wo 10 5 w 4 P w di TN 6 5 ma R372 329 il 8 10304 lie A EN T UA MALL ma ia LAN R369 T HEAD B BOARD 7 383 C367 C 5 3 3 6323 10303 m Gu 368 D 5 C374 C324 E m C348 I A e JW317 D 5 A t E AR 0391 R3s9 JW311 A D 5 JW314 E R341 R321 4 JW318 LEAF SW BOARD 0 7 rod O JW319 nd EISE HEAD beo E N 1 1 1 1 1 1 1 lt 0 4 ae 59 R405 C362 0363 JWS 0 rage RU E H 5 ey W A A 0309 R361 54H T T 6 REC PLAY HEAB it R420 8422 MD s ovo i m d JW324 R402 R403 ows RADA o O JW323 0394 1FF676 221 JW330 R303 9352 5 R421 h423 AN TIANG 8302 R307 4 R362 JW322 R364 9 RV301 ore EI f wa R363 JW336 NG 71145 74 JW338 T R822 R325 R328 JW33 C346 9 e 01395 JW335 e e 0318 0306 JW332 R301 04 305 D L TRS DP JW333 370 0319
27. LC checking Procedure Enter the MC test mode 2 Insert a tape into Deck B 3 During Recording Keep holding down the below keys m ALC could keep ON while these keys keep being pressed ALC could keep OFF while keys are released Double speed REC mode Procedure Enter the MC test mode 2 Insert a tape into Deck B 3 During Recording keep holding down the below key Double speed recording is going on while the key keeps being pressed REC PLAY checking The mode to PLAY by rewinding recording contents automati cally Procedure 1 If recording A surface it returns automatically at the point of the recording beginning and it replays when pressing TAPE B P gt 2 Ifrecording B surface it returns automatically at the point of the recording beginning and it replavs when pressing TAPE B 44 53 SECTION 5 SECTION 6 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS Precaution DECK SECTION 0 dB 0 775V 1 Clean the following parts with a denatured alcohol moistened swab 1 Demagnetize the record plavback head with a head record plavback heads pinch rollers demagnetizer erase head rubber belts 2 Do not use a magnetized screwdriver for the adjustments capstan idlers 3 After the adjustments apply suitable locking compound to the 2 Demagnetize the record playback head with a head demagne parts adjust tzer 4 The adjustments should be performed with the rated power 3 Do not use a magnetiz
28. S AND SCHEMATIC DIAGRAMS Circuit Boards Location Note on Printed Wiring Boards Note on Schematic Diagram e o parts extracted from the component side e All capacitors are in uF unless otherwise noted pF uuF LEAF SW board Pattern from the side which enables seeing 50 WV or less are not indicated except for electrolytics MAIN board Indication of transistor and tantalums All resistors are in and 4W or less unless otherwise HEAD A board Q specified ofo o e fusible resistor E e C 1 panel designation These are omitted Note The components identified bv mark A or dotted line with mark A are critical for safetv Q Replace with part number specified TC PANEL A DECK board C E m ii B Line 1 1 ma Line These are omitted Voltages and waveforms dc with respect to ground under no signal conditions no mark STOP PB TC SUB PANEL A board REC Voltages are taken with a VOM Input impedance 10 Voltage variations may be noted due to normal produc tion tolerances TC SUB PANEL B board Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms TC PANEL B DECK board Signal path HEAD B board gt gt gt REC e Waveforms e IC Block Diagram MAIN Board MAIN Board Q 1301 2 DECK B REC mode NO312 L REC
29. STOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR lt RESISTOR gt CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON CARBON FUSIBLE FUSIBLE CARBON CARBON CARBON CARBON CARBON BN1A4M TP BA1A4M TP 2562785 25 1116 BA1A4M TP 25 1116 BA1A4M TP BA1A4M TP 2501387 34 25G2001TP LK 22K 2 2K 100 100 6 8K 10K 12K 3 3K 22K 1M 160K 100K 10K 33K 10K 10K 390K 1 2K 4 1K 12K 47K 4 1K 10K 47K 4 7K 47K 120K 100 5 6K 130K 220 120K 220 22K 12K 270K 220 12K 5 6 5 6 18K 18K 5 6K 22K 220 The components identified by mark or dotted line with mark A are critical for safety Replace only with part number specified 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Remark 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W 1 4W F 1 4W F 1 4W 1 4W 1 4W 1 4W 1
30. TC 93 SERVICE MANUAL AEP Model UK Model Ver 1 0 2001 04 pu mu E Model Australian Model TC S3 is the Tape deck section in MHC S7AV SV7AV S3 Dolby noise reduction manufactured under license Model Name Using Similar Mechanism NEW from Dolby Laboratories Licensing Corporation Tape deck DOLBY and the double D symbol are trade TCM 230AWRA1 marks of Dolby Laboratories Licensing Corporation Section 230MWR41 SPECIFICATIONS Recording system 4 track 2 channel stereo Frequency response 60 13 000 Hz 3 dB DOLBY NR OFF using Sony TYPEI cassette 60 14 000 Hz 3 dB using Sony TYPE II cassette Wow and flutter 0 15 W Peak IEC 0 196 W RMS NAB 10 24 W Peak DIN Dimensions w h d Approx 280 x 128 x 330 mm Mass Approx 2 4 kg Design and specifications are subject to change without notice STEREO CASSETTE DECK 9 873 837 1311 Sony Corporation A 4 2001D0500 1 Home Audio Companv 2001 4 Shinagawa Tec Service Manual Production Group 6 53 3 1 3 2 3 3 3 4 3 5 3 6 7 1 7 2 7 3 7 4 7 5 7 6 l 1 7 8 7 9 8 1 8 2 8 3 8 4 TABLE CONTENTS SERVICING NOTES 3 GENERAL Location of 2 4 DISASSEMBLY DisassembEy uuu pa ote M net uu 6 OV 6 MAIN Boa Q una uu
31. ark Ref No Part No 762 3 318 203 62 763 3 019 208 01 764 3 040 580 11 765 4 228 450 11 766 2004 793 767 2004 794 901 3378 241 1 W Si not supplied OK n not supplied Description Remark SCREW B1 7X4 TAPPING WASHER STOPPER PULLEY TENSION SPRING REVERSE SLIDER TORSION CHASSIS A ASSY SUB CHASSIS B ASSY SUB MOTOR ASSY CAPSTAN NOTE e Due to standardization replacements in the parts list may be different from the parts speci fied in the diagrams or the components used on the set SECTION 9 ELECTRICAL PARTS LIST Items marked are not stocked since they are seldom required for routine service Some delay should be anticipated when order ing these items TC S3 HEAD A HEAD B The components identified by mark A or dotted line with mark tl A are critical for safety Replace only with part number specifjed XX and X mean standardized parts so they e SEMICONDUCTORS may have some difference from the original In each case u u for example ong uA pA uPA PA number please include the board RESISTORS uPB uPB SURG All resistors are in ohms uPD uPD METAL Metal film resistor e CAPACITORS METAL OXIDE Metal oxide film resistor uF uF F nonflammable e COILS e Abbreviation uH uH TH Thailand model Ref No Part No Description Remark Ref No Part No Description Remark 1 676 220 11 HEAD A
32. d by heat SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK A OR DOTTED LINE WITH MARK ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB LISHED BY SONY 53 SECTION 1 SERVICING NOTES This set is a component of the MHC S7AV MHC SV7AV and e MODEL IDENTIFICATION MHC S3 Rear Panel The MHC S7AV SV7AV S3 system configuration is as shown be low and therefore it does not operate normally unless all four com ponents are connected In performing the repair connect all components with the system cables Note The precaution to the users is described on the label stuck on the back panel CD player and in the troubleshooting section in the Operation Manual System Configuration PART No AEP and UK models 4 233 093 00 Australian Saudi Arabia 4 233 093 1 and Korean models Sigapore model 4 233 093 2 PART No S T Thailand and Mexican models 4 233 093 3 SYSTEM amp CD ucon DISPLAY CDP TC 53 LOCATION CONTROLS Front Panel SECTION 2 GENERAL This section is extracted from instruction manual lt AUTO REVERSE lt lt AUTO REVERSE Rear Panel CD SYNC 6 20 21 DIRECTION
33. e test mode press the button Mode Playback test tape WS 48B 3 kHz 0 dB frequency counter ST S3 S5 SV7 AN MD OUT jack J601 1 Insert the WS 48B into the deck B 2 Press the I button on the deck B 3 Press the button in playback mode Then at HIGH speed mode 4 Adjust 1001 on the LEAF SW board so that frequency counter reads 6 000 30 Hz 5 Pressthe button Then back to NORMAL speed mode 6 Adjust RV1002 the LEAF SW board so that frequency counter reads 3 000 15 Hz Adjustment Location LEAF SW board Playback level Adjustment Procedure Mode Playback test tape P 4 L300J 315 Hz 0 aB PE level meter ST S3 S5 SV7 MD OUT jack 2601 1 Confirm that level difference between the channels is with 0 5 dB 2 After check adjust the following RVs Deck A 15 RV302 L CH Deck B is RV303 L CH so that adjustment within adjustment level as follows Adjustment Level MD OUT jack J601 PB level 334 4 to 748 7 mV 6 8 0 5 dB Adjustment Location MAIN board Sample Volue of Wow and Flutter 0 3 or less W RMS WS 48B 11 53 Bias Adjustment Procedure 1 Insert a tape into Deck B 2 After press PAUSE START button press IREC PAUSE START button then recording start 3 Mode Record Adjustable level MD OUT jack PB level 47 2 to 53 0 mV 27 3 to 26 3 dB Adjustment Location MAIN board MAIN
34. ed screwdriver for the adjustments supply voltage unless otherwise noted 4 After the adjustments apply suitable locking compound to the 5 The adjustments should be performed in the order given in parts adjusted 5 The adjustments should be performed with the rated power supply voltage unless otherwise noted this service manual As a general rule playback circuit ad justment should be completed before performing recording circuit adjustment 6 The adjustments should be performed for both L CH and R Torque Measurement CH Meter reading Meter reading 7 Switches and controls should be set as follows unless other 306N mto6 96Nem wise specified FWD CQ 102C 31 to 71 gecm 8 Please refer to SERVICING NOTES page 3 before adjust ts 0 43 0 98 oz inch NONE 0 19Nemto0 58 Nem Test Tape g CQ 102C 2to6g cm ae 0 02 0 08 oz inch Tape Signal Usedfor 3 06 N 30 36 6 96 N i P 4 A100 10 kHz 10 dB Azimuth Adjustment A CQ 102RC 31 to71 g cm WS 48B 3 kHz 0 dB Tape Speed Adjustment 0 43 0 98 oz inch P 4 L300J 315 Hz 0 dB Level Adjustment 0 19N mto0 58N m CQ 102RC 2to6g cm back tension 0 02 0 08 oz e inch Record Playback Head Azimuth Adjustment 6 96 N m to 14 02 Nem DECK A DECK B FF REW CQ 201B 71 to 143 gecm SES Note Perform this adjustments for both decks 0 98 1 99 oz inch Procedure 9 80N m 1 Mode Playback FWD tension CQ 403A 100 g o
35. r more 3 53 oz or more test tape I P 4 A100 Os 10 kHz 10 dB REV tension CQ 403R 100 g or more level meter 3 53 oz or more MD OUT jack J601 10 2 Turnthe adjustment screw and check output peaks If the peaks do not match for L CH and R CH turn the adjustment screw so that outputs match within 1dB of peak within 1dB R CH peak Screw Screw position L CH R CH position peak peak 3 Mode Plavback test tape P 4 A100 10 kHz 10 dB L CH oscilloscope set 5 sa S3 S5 SV7 Prot MD OUT jack J601 waveform of oscilloscope C phase 45 90 135 180 good wrong 4 After the adjustments applv suitable locking compound to the pats adjusted Adjustment Location Plavback Head Deck A Record Plavback Erase Head Deck B forward reverse 53 Note Use following buttons the test mode no mark Button of Tape unit 53 Button of amplifier unit TA S7AV or TA S3 2 Button of CD unit CDP S3 Tape Speed Adjustment DECK Note Start the Tape Speed adjustment as below after setting to the test mode In the test mode the tape speed is high during pressing the button Procedure 1 Turn the power switch on 2 While pressing the both PLAY MODE and IB buttons press the DISC 3 button The GROOVE on the fluorescent indicator tube display while in the test mode To exit from th

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