JVC-TDW254BK-tape-sm维修电路原理图.pdf

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1、SERVICE MANUAL DOUBLE CASSETTE DECK No.4363B Jul. 2001 COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD. TD-W254BK TD-W254BK Supplement Area suffix J C EN U U.S.A Canada Northern Europe Other Areas The transformer and the circuit board have already been changed in issued model TD-W254BK (No.4363). STANDB

2、Y / ON POWERREC/REC MUTE PAUSE COUNTER RESETCOUNTER RESET PHONES A B SYNCHRO DUBBING NORM SPEED HIGH SPEED PLAY PLAY MINMAX 1 2 5 3 46 INPUT LEVEL MINMAX 1 2 5 3 46 7 8 9 INPUT LEVEL TD-W254 ONOFF DOUBLE CASSETTE DECK DOLBY B-C NR HX PRO AUTO TAPE SELECTOR / CONTINUOUS PLAY REVERSE MODEDOLBY B NR OF

3、FCB B REC/PLAYBACK AUTO REVERSE A PLAYBACK AUTO REVERSE STANDBY Please confirm this SCHEMATIC DIAGRAMS (No.4363BSCH) to the schematic diagram and the circuit board. Please refer to TD-W254BK (No.4363) for the content of the text. RadioFans.CN 收音机爱 好者资料库 200107 VICTOR COMPANY OF JAPAN, LIMITED PERSON

4、AL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.4363B) TD-W254BK RadioFans.CN 收音机爱 好者资料库 ABC 1 2 3 4 5 TD-W254BK 2-1 Block diagram FL MUTE DI701 Q705 Q706 Q707 1 1 7 3 5 3 7 1 5 9 15 22 101121 2 8 6 4 137515 24 4 2 8 7 4 413 79 3 9 7 1 11 12 10 17 2 8 7

5、 2 389 16 30 3 1 28 47 48 2 3 4 5 6 7 9 24 METER (R) METER (L) G0 G6 Q8251 REC MUTE VR126 REC LEVEL ADJ (L) VR226 REC LEVEL ADJ (R) Q2251Q1251 B70 Q1152 DECK B PB HEAD AMP REC Q8163 IC815 6 3 VR217 B DECK LEVEL ADJ (R) Q2152 REC AMP IC825 VR117 B PB LEVEL ADJ (L) S1-S16 IC701 IC861 HEADPHONES IC852

6、LEVEL METER AMP J8601 H.P.JACK LINE OUT L R IC835 DOLBY NR REC OUT (R) REC OUT (L) PB IN (R) PB IN (L) 12.13 Q8171 PB O UT (L) REC IN (L) REC IN (R) PB OUT (R) IC818 PB SIGNAL SELECT A70 5.6 Q8172 B PBA PB IC811 7 3 PB HEAD AMP DECK A IC851 VOL.CONTROL & DD RP IC812 PB EQ SWITCH VCA VCA LINE IN DECK

7、 A PB HEAD VR111 A PB EQ ADJ (L) VR211 A PB EQ ADJ (R) DECK B REC/PB HEAD VR116 B PB EQ ADJ (L) VR216 B PB EQ ADJ (R) ERASE HEAD IC845 B HX PRO L2401L1401 BIAS DSC Q8491 Q8492 Q8481 Q8482 +B -B L8401 FREQUENCY ADJ -7V-7V VR246 BIAS ADL (R) VR146 BIAS ADJ (L) REC/PB SELECT IC816 Q2101 Q1101 DB101 VR2

8、12VR112 HS (R)(L) A PB LEVEL ADJ HS L R L R L R VR601 Input Level TD-W254BK 2-2 Parts are safety assurance parts. When replacing those parts make sure to use the specified one. Recording signal Indicator signal P.B signal (Deck A) P.B & H.P signal (Deck B) Equalizer & headphone amp circuit Standard

9、schematic diagrams ABCDEFG 1 2 3 4 5 2-3 TD-W254BK Note:/s/t/T235812AV.001 VDH2358-102AV_1/1 IC811 CN801 CN802 Q8163 Q8101 J701 VR117 Q1101 R1104 R1109 IC811 VR217 IC815 IC816 Q2101 R2104 R2109 Q8471 R8151 VR116 VR216 Q8171 C8901 VR112 C1154 C2154 R2155 R1154 R1159 Q8172 IC815 R8152 IC861 J8601 IC89

10、1 VR212 R1155 R1158 R2158 R2154 R2159 C1156 C2156 Q1152 Q2152 R1108 R1106 R1105 R2108 R2106 R2105 C1104 C2104 R1110 R2110 C2106 C1106 R1601 R2601 R1602 R2602 R1604 R2604 IC861 L8401 R2452 C2456 C2452 R2451 R1452 R1451 C1452 C1456 Q8481 R8482 R8484 R8483 Q8482 Q8491 Q8492 R8492 R8493 C8496 C8495 CN81

11、5CN811 C8493 IC818 VR146 C1152 R8101 C2152 R1152 VR246 VR111 R2152 R8173CN861 R8171 C1101 C1108 C1102 R1102 C1103 C1105 D8481 C8101 R8172 R8102 C8102 R8471 C2107 C2101 C2108 C2102 R2102 C2103 C2105 R1111 C1601 C1107 R8451 C1151 C1153 C1155 R8104 C2169 C8151 C1169 C1602 C8152 C2602 C2151 C2153 C2155

12、C8453 R1165R2165 IC812 R1107 R2107 R8103 VR211 R1101R2101 C2601 R1603 R1605R2605 R2603 C8602 C8601 R2111 R1160 R2160R1161R2161 R8452 R8453 D8451 D8452 CN845 R8472 CN862 R8474 R8473 R8475 D8101 C8483 C2454 IC845 C2453 C2455 R1453 C1457 C2451 R2453 C1451 C1453C1454 C1455 C2457 C8451 C8454 C8455 L1401L

13、2401 C8452 R8481 C8481 C8482 C8492 R8485 R8486 R8491 C8494 C8491 AN6557F QGF1205C1-06 QGF1205C1-20 QMS3533-V01 QVP0004-101Z 270K 15 AN6557F QVPA601-101AZ AN6557F UPC1330HA 270K 15 22k QVP0004-104Z QVP0004-104Z 0.01 0.012 0.012 6.8K 270K 15 AN6557F 22K BA15218N QNS0092-001 M50253P 6.8K 4.7K 4.7K 270K

14、 15 4.7/50 4.7/50 3.6K 4.7K 3.3K 3.6K 4.7K 3.3K 0.01 0.01 33K 33K 4.7/50 4.7/50 150 150 120K 120K 5.6K 5.6K BA15218N QQR0845-001 33K 0.039 100P 270K 33K 270K 100P 0.039 15 1K 1K 82K 82K 0.0015 0.0015 QGF1220F1-06QGF1220F1-06 0.022 BU4066BC QVP0004-203Z 330P 22k 330P 4.7k QVPA601-203AZ QVP0004-104Z 4

15、.7k 100K QGB2003L1-05 1K 470P 150P 150P 4.7K 150P 220/10 0.01 100K 100K 0.01 1.8K 470P 470P 150P 150P 4.7K 150P 220/10 12K 0.022 470P 4.7K 0.001 QVP0004-101Z 150P220/10 47K 270P 10/25 270P 0.0022 0.01 0.0022 0.001 QVPA601-101AZ 150P220/10 1/50 1M1M BU4066BC 2K 2K 1K QVP0004-104Z 1M1M 0.022 10K 1.8K1

16、.8K 10K 0.01 0.01 12K 33K 33K12K12K 3.6K 3K QGA2512C1-05Z 22K QGB2003M2-05 1.8K 22K 47K 330/25 0.01 UPC1297CA 560P 0.022 1010/25 560P/100 10 560P/100 560P0.01 0.022 10/25 10/25 100/10 100/10 QQR0847-001 QQR0847-001 10P 10K 4.7/50 100/10 47/25 470 3.3K 6.8 0.001 0.01/100 HS RECSIG-R MUTE LINEOUT-L LI

17、NEOUT-R NS 7V RECSIG-L GND PBIN-L -7V PBIN-R 5V RECMUTE NRREC DUB NRSW DDRP DDRPSEL -24V F1 F2 5.6V 11V STBY VOLRETURN VOLSEND METER-L METER-R RESET POFF BCrO2 B70 BMETAL Parts are safety assurance parts. When replacing those parts make sure to use the specified one. Dolby circuit & power circuit Re

18、cording signal Indicator signal P.B & H.P signal (Deck B) HABCDEFG 1 2 3 4 5 TD-W254BKTD-W254BK 2-4 Note:/s/t/T235812BV.001 VDH2358-102BV_1/1 L1351 L2351 Q8352 R1356 R2356 R1354 R1355 R2251 R1251 IC825 Q8251 Q2251 Q901 C2251 R2252 R941 R2258 C2360 R2253 R2255 C2253 C2254 L2252 R2257 R2261 R2262 R226

19、3 R2264 C2261 C2263 Q909 Q912 C900 IC901 IC901 Q903 C2264 S901 C2262 Q2262 Q1261 R2265 R2267 C2267 Q2252 Q905 R901 R921 C914 R902 Q1251 R1252 IC825 C1251 R1258 C941 R1253 R1255 C1253 C1254 P1 T901 P3 C930 L1252 R923 W1 R2266 R2270 R1257 Q1252 R1261 R1262 R1263 R1264 C1261 C1263 C1264 C1262 Q1262 Q22

20、61 R1265 R1267 C1267 R1254 R2254 D910 C2252 C1252 R1270 R937 R933 C931 R908 C2355 C1355 Q1511 Q2511 Q8511 R1266 IC852 R1513 R2513 J8501J8501J8501J8501 R2515 R1515 IC851 C8502 Q8501 Q8503 Q8504Q8502 L1251 D908 R8504 C1256 L2251 C2256 R927 R928 Q908 Q907 C8501 Q8351 Q8353 R8354 Q8252 C2266 C2265 D8351

21、 R8505 C1266 C1265 P1 Q913 F903 T901 P3 T901 R940 Q915 C930 F901 F902 W1 F901 F902 w1 R8353 C8351 C8352 R8352 R8351 R1351R2351 R1353 C1360 C1358 C1357 C1359 C2358 C2357 C1354 R2353 C2359 C2354 R2354 R2355 VR226 C8251 R2259 R2256 C2257 C2258 D926 C927 C2255 C903 D923 D924 IC826 D905 C904 VR126 D904 D

22、901 D902 D903 R912R913 R914R915 C910C911 C908 C901C902 R918 R917 C8252 IC835 R1357 C907 R2357 R1259 R1256 D907 D918 D922 D913 C923 C921 C920 C924 C917 C915 D906 CN901 C1257 D921 C1258 C1255 D909 C918 R8251 R938 R910 R929 R930 C2356C1356 C1351 C2351 D8252 D917 R8253 C909 D914 R2517 R1517 R8513 R8514

23、C8513 R8515 R8516D8513 R1511 R2511 D1511 D2511 R1502 R2502 R2514 R1514 R1512 R1501 R2501 R1503 R2503 R2512 C2511 C1511 R2516 R1516 C8512 C8511 C8503 R8503 C2501 R8502 C1501 C906 C930 R8355 R8252 R8501 R2273R1273 R8255 D8253 R1504 R2504 D8514 FW901 FW901 D925 C928 CN901 CN901 QQR0879-001 QQR0879-001

24、22K 22K 100K 1.5K 4.7K 4.7K QVP0004-203Z BA15218N 33P 3.3K 470 180 4.7/25 33K 8.2K 0.33/50 1/50 4.7mH 15K 5.6K 6.8K 2.2K 2.2K 0.0082 0.0033 0.0047/250V M5218ALM5218AL 0.047 QSW0632-001 0.033 5.6K 1.8K 0.012 4.7 10 330/50 QVP0004-203Z 11ES2-T411ES2-T411ES2-T411ES2-T4 4.7 3.3K BA15218N 33P 180 0.22/50

25、 33K 8.2K 0.33/50 1/50 0.01 4.7mH 820 6.8K 1M 15K 5.6K 6.8K 2.2K 2.2K 0.0082 0.0033 0.047 0.033 5.6K 1.8K 0.012 12K 12K 11ES2-T411ES2-T4 0.0047 0.0047 1M 4.7 270 150P 180 0.0022 0.0022 6.8K BA15218N 68K68K QNN0135-001 22 22 AN7384N 100/10 18mH 10k 150P/500 18mH 150P/500 4.7k 4.7k 100/10 15K 0.027 0.

26、0068 10k 0.027 0.0068 T315mAL 6.8 0.01 T800mAL T800mAL T800mAL T800mAL 47 470/10 470/10 47 18K 2.2K 2.2K 4.7K 4.7/25 0.1/50 0.0022 0.1/50 0.1/50 0.0022 4.7/25 4.7K 0.1/50 4.7/25 100K 1.5K 0.01 1M 1.5K 0.012 0.0068 MTZJ6.8B-T2 100/10 470P 2200/25 BU4066BC MA700 2200/25 10K 10K 10K10K 330/10330/10 470

27、/10 0.010.01 10K 10K 0.01 HA12142NT 560 100/25 560 1M 1.5K MTZJ3.6A-T2 MTZJ12C-T2 MTZJ6.2B-T2 MTZJ24D-T2 330/10 470/16 100/16 100/10 100/25 220/50 QGD2501C1-05Z 0.012 0.0068 470P 10/25 1K 330 10K 390 390 0.00220.0022 4.7/25 4.7/25 22K 4.7/50 2.2K 2.2K 22K 10K 1/50 100 10K 2.7K 2.7K 22K 22K 27K 27K 1

28、0K 39K 39K 1k 1k 10K 10/25 10/25 1K 1K 0.01 0.01 1/50 10k 4.7/25 68K 4.7/25 0.01 0.01 18K 100K 10k 4.7K4.7K 22K 18K 18K 47/25 QGD2501C1-05Z QGD2501C1-05Z STBY VOLRETURN NS PBIN-L 5.6V 5V -24V RESET RECMUTE -7V POFF F1 METER-L METER-R PBIN-R NRSW DUB NRREC 11V LINEOUT-R BMETAL VOLSEND RECSIG-R DDRPSE

29、L 7V F2 RECSIG-L MUTE LINEOUT-L GND B70 DDRP BCrO2 Parts are safety assurance parts. When replacing those parts make sure to use the specified one. Indicator signal Display & Mecha control circuit ABCDEFG 1 2 3 4 5 2-5 TD-W254BK Note:/s/t/T235812CV VDH2358-102CV_1/1 CN721CN711 CN601 S601 S607 CN701

30、D716 Q704 CN712 Q707 CN722 Q706 DI701 Q705 S608 Q751 S624 S605S604 S625S626S627 Q752 IC701 S628S629S630 S621S622 S623 R601 R622 R607R608 R621 R624R625 R627R628 Q740 CN613 CN603 Q703 D717 Q745 S610 S603 S602 D718 R603 Q709 R623 D741 R765 R767 R768 Q708 S606 R606R605 R626 VR601 R716 VR704 R718 VR703 W

31、703 VR702 Q710 Q711 D715 R785 R786 R783 R784 D712 VR701 Q712 R756 CN614 FW701 R769 R752 CN604 D709 D710 R766 R702 Q744 R733R731R736 IC733 IC731 R734 IC734 IC732 B7101 R711 D701 Q701Q702 R708 X701 R701 C701 R742R751 Q743 R743 D711 CN602 R780 R651 R673 R781 R762 R761 R652 R746 R782 R653 R712 R654 R655

32、 R656 CN702 R657 R658 R604 D719 R609 D705 R610 D702 R659 R660 R661 R662 R663 R664 R665 R666 R667 R668 R669 R670 R671 R672 C733 R717 R715 D703 D707 D704 D708 D706 C703 R719 D720 D713 C706 R748 R747 R749 R770 R771 R772 R773 R774 R775 R764 D721 D722 D724 D723 R753R754 R740R741 R735 R732 R755 R710 R703

33、R707R706R705 R704 R709 C702 Q741 Q742 R750 R745 C731 QGB1219K1-08SQGB1219K1-08S DN6851A QGF10205F1-06 DN6851A QGB1219J1-15SQGB1219J1-15SQGB1219J1-08S QGF1205F1-20 QGB1219K1-15SQGB1219K1-15S QGB1219J1-08S MB88514B-1730T 1K 1.8K 1.8K2.7K 2.2K 1K 1.2K 2.7K4.7K QGB2012J1-06 QGG2002M2-06 QSS7A23-V03 QSS7

34、A23-V03 18K 2.7K SLR-56VC-T12 150 6.8K 6.8K 1.2K 1K 1.8K QVGA12B-V06 1K QVP0077-203Z 220 QVP0077-103Z 22K 22K 22K 22K 10K QGB2012J1-04 6.8K 10K QGG2002M2-04 6.8K 220 1.8K 3.3K 1.8K TA8409S BA6218 3.3K TA8409S BA6218 47K 2.7K QAX0246-001Z 15K 100/10 15K 15K 10K MSI-5B2LW MSI-5B2LW QGF1205F1-06 MSN-5D

35、257A MMN-6F4RA38 22k 47K 47K 22k 22K 22K 47K 220K 22k 47K 22K 47K 47K 47K QGF1205F1-06 47K 47K 27K 10K 10K 47K 47K 47K 47K 47K 47K 47K 47K 47K 47K 47K 47K 47K 47K 10/25 1K 22K 470P 220 0.0047 220K 220K 220K 100 MSN-5D257A MMN-6F4RA38 100 100 100 100 100 10K 220K220K 220K220K 10K 10K 4.7 220 470 4701

36、K1K 1K 10K 470P 68k 68k 10/25 KEY0 5.6V D-GND STBY RESET 5V DCS B70 G6 G0 G4 G5 G1 F1 G3 G2 S1 -7V 11V S2 F2 S3 S4 S5 S6 S7 S8 A70 S9 S10 A70 -24V CLK S11 S12 S13 S14 S15 S16 POFF KEY1 KEY2 BMETAL KEY3 METER-L METER-R DATA B70 BMETAL POFF KEY0 KEY1 KEY2 KEY3 M-GND F2 B.A B.RC B.RR B.FC G0 G1 A.A B.F

37、R A.RC A.RR -24V G2 G3 G4 G5 G6 A.RR F1 A.FC A.F.CAM A.FR S1 S2 S3 S4 B.B S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 A.R.CAM B.R.CAM B.F.CAM A.R.REEL A.F.REEL B.F.REEL B.R.REEL A.B A.FR B.RC B.FR B.RRB.FC A.RC A.FC HABCDEFG 1 2 3 4 5 TD-W254BKTD-W254BK 2-6 Main board Printed circuit boards Power sup

38、ply board J/C ver. only U ver. only EN ver. only Main board Note:/d4/n/lvb20034/001a/20034 Power supply board for EN ver. T901 FW901 C930 W1 P1 P3 W2 W3 S901 C900 W2 W3 Note:/d3/t/vmw1372/004/1372 C901 C902 C903 C904 C906 C907 C908 C909 C910 C911 C914 C915 C917 C918 C920 C921 C923 C924 C925 C927 C92

39、8 C931 C941 C1101 C1102 C1103 C1104 C1105 C1106 C1107 C1108 C1151 C1152 C1153 C1154 C1155 C1156 C1251 C1252 C1253 C1254 C1255 C1256 C1257 C1258 C1261 C1262 C1263 C1264 C1267 C1351 C1354 C1355 C1356 C1357 C1358 C1359 C1360 C1451 C1452 C1453 C1454 C1455 C1456 C1457 C1501 C1511 C2101 C2102 C2103 C2104

40、C2105 C2106 C2107 C2108 C2151 C2152 C2153 C2154 C2155 C2156 C2251 C2252 C2253 C2254 C2255 C2256 C2257 C2258 C2261 C2262 C2263 C2264 C2267 C2351 C2354 C2355 C2356 C2357 C2358 C2359 C2360 C2451 C2452 C2453 C2454 C2455 C2456 C2457 C2501 C2511 C8101 C8102 C8151 C8152 C8251 C8252 C8351 C8352 C8451 C8452

41、C8453 C8454 C8455 C8481 C8482 C8483 C8491 C8492 C8493 C8494 C8495 C8496 C8501C8502 C8503 C8511 C8512 C8513 C8601 C8602 C8901 C1259 CN802 CN845 CN861 CN901 D901 D902 D903 D904 D905 D906 D907 D908 D909 D910 D913 D914 D917 D918 D921 D922 D923 D924 D925 D926 D8514 D1511 D2511 D8101 D8251 D8252 D8451 D84

42、52 D8481 D8511 D8512 D8513 IC811 IC812 IC815 IC816 IC818 IC825 IC826 IC835 IC845 IC851 IC852 IC861 IC891 IC901 J701 J8501 L1251 L1252 L1351 L1401 L2251 L2252 L2351 L2401 L8401 Q901Q903 Q905 Q907 Q908 Q909 Q912 Q913 Q915 Q1101 Q1152 Q1251 Q1252 Q1253 Q1261 Q1262 Q1511 Q2101 Q2152 Q2251 Q2252 Q2253 Q2

43、261Q2262 Q2511 Q8101 Q8163 Q8171 Q8172 Q8251 Q8252 Q8253 Q8351 Q8352 Q8353 Q8471 Q8481 Q8482 Q8491 Q8492 Q8501 Q8502 Q8503Q8504 Q8511 R901 R902 R908 R910 R912 R913 R914 R915 R917 R918 R921 R923 R927 R928 R929 R930 R931 R933 R937 R938 R940 R941 R1101 R1102 R1104 R1105 R1106 R1107 R1108 R1109 R1110 R1

44、111 R1152 R1154 R1155 R1158 R1159 R1160 R1161 R1165 R1251 R1252 R1253 R1254 R1255 R1256 R1257 R1258 R1259 C2259 R1261 R1262 R1263 R1264 R1265 R1267 R1270 R1271 R1272 R1273 R1351 R1353 R1354R1355 R1356 R1357 R1451 R1452 R1453 R1501 R1502 R1503 R1511 R1512 R1513 R1514 R1515 R1516 R1517 R1601 R1602 R16

45、03 R1604 R1605 R2101 R2102 R2104 R2105 R2106 R2107 R2108 R2109 R2110 R2111 R2152 R2154 R2155 R2158 R2159 R2160 R2161 R2165 R2251 R2252 R2253 R2254 R2255 R2256 R2257 R2258 R2259 R8255 R2261 R2262 R2263 R2264 R2265 R2267 R2270 R2271 R2272 R2273 R2351 R2353 R2354 R2355 R2356 R2357 R2451 R2452R2453 R250

46、1 R2502 R2503 R2511 R2512 R2513 R2514 R2515 R2516 R2517 R2601 R2602 R2603 R2604 R2605 R8101 R8102 R8103 R8151 R8171 R8172 R8173 R8251 R8252 R8253 R8351 R8352 R8353 R8354 R8355 R8451 R8452 R8453 R8471 R8472 R8473 R8474 R8475 R8481 R8482 R8483 R8484 R8485 R8486 R8491 R8492 R8493 R8501 R8502 R8503 R850

47、4 R8511 R8513 R8514 R8515 R8516 VR111 VR112 VR116 VR117 VR126 VR146 VR211 VR212 VR216 VR217 VR226 VR246 Z901 Z902 Z903 Z904 T901 P2 P3 P1 FW901 W1 C930 R8901 R8104 R2505 R8505 C8902 R1268 R1266 C1265 C1266 C1268 C2265 C2266 C2268 R2268 R2266 R1504 C1602 C2602 R2504 D8352 D8351 R8152 CN801 D8253 C116

48、9 C2169 C1109 C2109 L8402 R1505 R1352R2352 5 BE 16 1 E E D S S D 1 9 PBLEVELADJ. 9 9 8 B E E B 15 9 10 18 1 B E 8 1 E 14 8 ADJ. RECLEVEL 81 B BE E B B E E B E B E B E B EB E B B E 1 7 EB EB E E B B 16 B E 1 EBEBE 8 BE B E 14 1 8 7 1 1 B E EB B BE 18 E B 9 8 71 14 20 15 10 5 1 169 B B E E 51 F902 F90

49、1 PBEQ ADJ. ADJ. BIAS 1 ADJ. COM. A/C/J B/E/EN/G B EB E EB 15 1 6 B 202530 10 B E E EB B E LEVEL EB PB 1 PBEQADJ. ADJ. LEVEL PB PBEQADJ. B E 1 8 EB T03 Note:/d4/n/lvb20035/001a/20035 Power supply for U ver. P1 P3 T901 W5 W4 W3 W2 FW901 C930 W1 Z906Z905 W2 W3 W4 W5 ABCDEFG 1 2 3 4 5 2-7 TD-W254BK Sub board Mechanism control board Key switch for deck B Standby indicator board Head phone jack board Key switch board for deck A Note:/d3/t/vmw1437/002/1437 C701 C702 C731 C732 CN701 CN702 CN711 CN712 CN721 CN722 D701 D702 D703 D704 D705 D706 D707 D708 D709 D710 D711 D712 D7