Sony CX-JTV8 / JAX-TV8 Service Manual ▷ View online
CX-JTV8
33
33
6-11. SCHEMATIC DIAGRAM – VMP42DN Board (2/2) –
•
See page 40 for Waveforms.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : VIDEO CD PLAY
no mark : VIDEO CD PLAY
∗
: Impossible to measure
C542
R551
R541
R542
R557
R556
C552
C551
C547
C548
C549
C550
C544
C546
C570
C534
C536
R545
C541 C539
R549
R550
C535
TP178
TP173
TP172
TP183
TP193
TP192
TP204
TP205
FB503 TP197
FL503
FL504
FB502
TP191
C545
C543
R552
C533
C537
R548
R544
R543
R547
TP67
TP68
TP72
TP73
TP74
TP79
TP80
TP81
TP82
TP83
TP84
TP85
TP86
TP88
TP89
TP93
TP94
TP96
TP97
TP99
TP100
TP102
TP106
C504
R513
C502
R502
C501
C503
TP1
TP2
TP3
TP4
TP5
TP6
TP8
TP9
TP10
TP11
TP12
TP13
TP14
TP15
TP16
TP17
TP18
TP19
TP20
TP21
TP23
TP24
TP25
TP22
TP26
TP27
TP28
TP29
TP30
TP31
C505
R538
R534
C525
C522
TP151
C523
TP146
TP145
R531
TP127
TP128
TP129
TP130
TP132
TP134
TP136
TP126
TP124
TP121
TP122
TP119
TP118
TP117
TP116
TP115
TP113
TP111
TP109
C521
C513
TP215
TP216
FB504
C511
R522
FB501
TP177
C538
X502
R559
TP182
R532
X501
TP70
R546
TP198
R555
R554
TP203
TP201
R558
TP209
TP208
TP202
TP91
R533
R537
C524
TP156
TP157
TP158
TP159
C540
R517
R516
R507
R508
R506
R505
R504
R503
R509
R512
R511
R510
TP33
C510
IC505
0.1
1.6k
0
0
10
10
1 50V
0.1
1
50V
0.1
8p
8p
0.47
0.1
0.0033
470p
150p
1k
0.01
0.47
100k
10k
0.068
1
50V
470p
820
0.1
100p
680k
1M
470k
10k
0.1
10k
0.1
3.3k
10 16V
0.1
0.1
10k
0
1
50V
7p
7p
100k
0.1
0.001
0.1
10k
100
6.3V
27MHz
470
4.7k
33.8688MHz
180k
10
10
1M
33k
0
0.1
0.1
2.7k
47k
100
100
100
100
100
100
100
100
100
100
0.1
CXD1887R
A1
A2
A4
A5
A6
A8
A9
A10
A11
A12
A13
A14
143
142
141
140
137
138
135
133
160
173
163
164
34
35
36
37
39
40
41
42
43
44
45
49
50
51
52
53
54
165
28
29
30
26
162
70
55
56
59
60
61
62
63
64
65
66
68
72
73
74
76
77
78
SCK
SRQ
SOK
SCS
1887SO
1887SI
203
204
205
201
(2/2)
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO PROCESSOR,
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL ENCODER
(54MHz)
I
O
G
I
O
G
(4.2336MHz)
(Page 32)
CX-JTV8
34
34
6-12. PRINTED WIRING BOARD – VMP42DN Board –
•
See page 27 for Circuit Boards Location.
:Uses unleaded solder.
CN101
C573
C209
C366
IC505
C365
R102
JW203
C597
FL201
FB252
L102
C114
C582
C596
IC102
C544
C543
R558
R557
R556
R555
R554
R552
R551
C540
C570
C538
C524
C525
R517
R152
R516
C503
C502
C551
R502
IC202
R533
C501
CN201
FB501
C567
R202
C552
C561
C584
C212
C210
C214
C258
C115
IC508
R115
R114
C211
CN301
C223
FB504
R559
C338
FL501
C201
C572
C360
C364
R375
R376
FB561
C571
FB502
IC307
C207
C204
C206
C255
C116
C104
C208
C154
FL503
R513
C550
C549
C548
C547
C546
C545
R550
R549
C542
C541
C539
C361
R544
R321
R322
C253
R543
R542
R541
C533
R538
R537
Q370
C522
C523
R532
C510
C511
C521
R512
R511
R510
R509
C505
C504
C322
C321
C323
L321
C566
C513
R548
C537
R547
R546
R545
C534
C536
C535
FB360
R531
IC201
FB503
C205
R534
C574
C576
R561
R504
Q201
C213
FL504
C106
C156
R109
R506
FB251
R108
C224
R201
R107
R157
R159
R158
C581
R505
Q581
R508
R507
R582
FL502
C222
R581
R503
C221
C583
IC506
C105
C257
C203
C202
C259
FB201
C155
C575
IC504
C254
R522
X502
X501
Q301
R323
IC507
28
27
2
1
1
8
16
9
(COMPONENT SIDE)
VMP42DN BOARD
VMP42DN BOARD
(CONDUCTOR SIDE)
TP70
(54MHz)
TP182
(4.2336MHz)
TP415
(L-OUT)
TP413
(R-OUT)
M
VIDEO OUT
BOARD
CN310
17
32
16
1
A
BD
BOARD
CN101
3
1
L
MAIN BOARD
CN312
1-687-869-
11
(11)
1-687-869-
11
(11)
E
E
E
E
3
1
1
2
3
4
5
6
7
8
9
10
11
12
13
A
B
C
D
E
F
G
H
I
J
(Page 28)
(Page 44)
(Page 35)
IC102
I-6
IC201
I-12
IC202
I-2
IC307
B-9
IC504
G-9
IC505
F-4
IC506
C-12
IC507
C-11
IC508
C-4
Q201
H-12
Q301
F-9
Q370
B-9
Q581
G-8
Ref. No.
Location
• Semiconductor
Location
CX-JTV8
35
35
6-13. PRINTED WIRING BOARD – MAIN Board –
•
See page 27 for Circuit Boards Location.
:Uses unleaded solder.
B
IC201
D205
R253
R269
R268
R266
R251
R235
R278
R288
R273
Q225
Q219
Q221
R232 R234
Q222
R245
R216
R286
R272
R270
R284
R283
R287
R260
C225
C226
R225
R226
R252
C286
R285
R265
R215
R271
Q218
R346
C202
C285
R241
R267
C204
C203
R242
Q220
R231
R282
R348
R384
C201
C300
JR300
R233
Q303
Q313
R385
R389
Q302
R379
R482
R483
Q331
Q330
R378
R246
D307
R481
D206
R484
R469
D308
D325
C441
C392
JR317
R413
JR328
R419
R412
JR321
JR326
R415
JR307
R414
JR309
JR308
JR306
R453
R417
JR354
JR327
IC310
R485
JR316
R367
R334
R479
C402
R416
R368
C390
R307
JR305
JR304
JR303
R454
R333
R486
IC309
R430
C401
R410
R409
R408
R405
R407
R400
R401
R420
R366
R402
R404
D305
C391
R380
R337
R467
R468
R332
R339
R375
R336
R340
R403
R478
R331
R353
R491
R300
R425
R466
R424
R316
Q312
R358
R352
R406
IC303
R493
C491
R494
R338
Q491
R495
R347
Q323
R370
R335
R397
R455
JR338
D324
R399
R398
R395
JR342
JR340
R492
C342
R356
R354
R426
Q311
D306
Q310
R355
JR334
C366
C446
JR310
R321
JR311
IC301
R330
C319
C353
R341
R396
C358
R325
R319
JR312
JR313
R317
R322
JR322
C425
JR325
C355
C356
C361
R101
R323
D317
R329
R324
C354
D311
D364
R361
R362
R363
R421
D312
R460
R461
D372
R359
R391
Q372
Q327
JR336
R371
R372
D371
R427
R428
R487
R488
R497
R496
R388
R386
Q324
R387
R314
R318
R326
Q402
R320
C362
JR361
R440
R441
R443
R309
R310
R303
R304
R301
C351
C352
R432
R313
R365
JR333
0
R289
R328
Q405
R436
R302
Q404
R446
Q408
R462
R463
R464
R489
R490
JR362
R442
R444
R445
R448
R447
R480
R364
R392
R393
R470
R315
C414
C415
R449
R450
R451
R394
R452
R290
Q407
D374
R418
IC304
R102
C365
JR337
R456
R465
JW378
JW377
JW309
JW310
JW311
JW400
JW390
JW393
JW395
JW387
JW389
JW320
JW300
JW386
JW253
JW360
JW264
JW370
JW396
JW266
JW410
JW420
JW394
JW380
JW430
JW397
JW379
JW381
JW324
JW325
JW326
JW323
JW322
JW321
JW319
JW316
JW315
JW312
JW314
JW313
JW363
JW362
JW327
JW365
JW367
JW364
JW384
JW382
JW277
JW385
JW383
JW470
JW267
JW215
JW220
JW281
JW268
JW373
JW372
JW359
JW361
JW371
JW368
JW273
JW494
JW217
JW210
JW209
JW216
JW219
JW280
JW218
JW398
JW350
JW231
JW330
JW223
JW221
JW222
JW392
JW283
JW282
JW225
JW251
JW233
JW460
JW456
JW303
JW302
JW301
JW307
JW305
JW304
JW308
JW108
JW345
JW107
JW344
JW342
JW106
JW343
JW328
JW333
JW334
JW329
JW331
JW332
JW102
JW103
JW112
JW449
JW269
JW448
JW356
JW358
JW357
JW265
JW354
JW335
JW339
JW338
JW337
JW348
JW341
JW347
JW346
JW457
JW461
JW462
JW466
JW467
JW468
JW479
JW478
JW263
JW469
JW443
JW445
JW471
JW474
JW475
JW472
JW473
JW499
JW459
JW440
JW453
JW455
JW458
JW446
JW444
JW454
JW450
JW415
JW426
JW441
JW439
JW438
JW434
JW433
JW432
JW442
JW429
JW427
JW428
JW411
JW271
JW272
JW407
JW408
JW409
JW403
JW405
JW406
JW270
JW422
JW424
JW423
JW436
JW417
JW418
JW416
JW421
JW419
JW274
JW239
JW298
JW238
JW234
JW227
JW226
JW235
JW236
JW252
JW205
JW200
JW237
JW491
JW490
JW483
JW276
JW489
JW447
JW211
JW212
JW213
JW206
JW214
JW482
JW493
JW487
JW488
JW492
JW207
JW484
JW485
JW486
JW202
JW201
JW204
JW278
JW203
JW498
JW435
JW497
JW496
JW495
GA1
JK302
CN306
C418
C419
IC313
C375
IC306
C373
Q301
C420
C421
D301
D302
C374
D319
D321
D322
D320
CN307
IC305
C320
C339
C393
C337
C324
C326
C328
C314
C345
C397
C363
C364
C412
C318
CN303
C309
C310
C304
C411
IC308
C371
C380
C372
C399
C381
C334
C302
C398
Q373
Q304
C332
C377
C379
C386
Q328
C343
C347
IC307
Q367
C410
C413
D304
D303
C327
C102
C323
C317
C325
C303
C357
C101
C370
CN101
D102
C103
C312
CN309
C311
C369
C313
D314
C450
D315
Q492
C492
C340 C384
C382
C316
C333
C331
C321
C383
C315
C330
C385
C329
D313
C367
C396
C400
C341
CN312
CN311
CN304
Q314
Q316
Q315
Q317
Q318
Q319
Q320
CLP3
Q223
Q228
C250
C260
C240
C221
C249
C258
C268
C239
C241
C266
C254
C272
C259
CN202
C248
C273
C247
C253
C269
C267
C232
C237
C244
C261
CLP2
CN310
CN203
C440
C439
R433
R434
C233
C234
L201
C223
C242
C301
JW340
MAIN BOARD
1-688-080-
14
TUNER UNIT
SUPPLIED WITH THE
ASSEMBLED BLOCK
FM 75
Ω
(COAXIAL)
ANTENNA
AM
LOOP
11
10
1
2
E
E
1
21
42
22
1
3
M731
(FAN)
(FAN)
M
R
L
MD (VIDEO)
IN
JK302
R
L
MD (VIDEO)
OUT
JK302
E
E
E
E
E
E
E
E
(CHASSIS)
G
POWER BOARD
CN502
C
POWER BOARD
CN501
13
1
13
1
1
3
1
3
1
3
1
3
E
E
E
E
E
E
E
E
3
1
1
1
12
2
19
18
E
E
E
E
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
E
S
D
G
E
E
E
E
1
9
BIAS OSC
E
E
E
E
8
1
HRPE1
(REC/PB/ERASE)
(DECK-B)
1
5
D
HEADPHONE
BOARD
CN105
1
3
HP1
(PB)
(PB)
(DECK-A)
31
30
1
2
F
PANEL
BOARD
CN101
L
VMP42DN
BOARD
CN201
B
DRIVER
BOARD
CN701
9
8
1
2
E
PANEL BOARD
CN701
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
(Page 30)
(Page 34)
(Page 46)
(Page 46)
(Page 44)
(Page 41)
(Page 41)
D102
C-14
D205
L-6
D206
M-7
D301
N-11
D302
M-11
D303
N-12
D304
M-12
D305
G-5
D306
E-9
D307
N-10
D311
O-14
D312
K-13
D313
F-8
D314
E-8
D315
E-9
D317
G-14
D318
M-10
D319
N-13
D320
M-13
D321
N-13
D322
M-13
D324
E-9
D364
N-10
D371
N-14
D372
O-14
D374
N-13
IC201
K-5
IC301
G-12
IC303
G-8
IC304
K-13
IC305
M-12
IC306
M-11
IC307
J-9
IC308
M-10
IC309
F-6
IC310
F-5
IC313
M-13
Q218
K-4
Q219
L-4
Q220
K-4
Q221
L-4
Q222
N-6
Q223
M-5
Q225
N-6
Q228
N-5
Q301
M-11
Q302
M-10
Q303
K-9
Q304
N-13
Q310
F-9
Q311
E-9
Q312
F-8
Q313
K-10
Q314
D-6
Q315
D-6
Q316
D-6
Q317
D-5
Q318
D-5
Q319
D-5
Q320
D-4
Q323
F-7
Q324
K-11
Q327
N-14
Q328
M-14
Q330
N-9
Q331
N-9
Q367
J-10
Q372
N-14
Q373
L-14
Q402
H-14
Q404
K-15
Q405
H-14
Q407
H-15
Q408
J-15
Q491
G-7
Q492
G-7
Ref. No.
Location
• Semiconductor
Location
CX-JTV8
36
36
6-14. SCHEMATIC DIAGRAM – MAIN Board (1/4) –
•
See page 50 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(
no mark : TUNER (FM/AM)
(
) : CD PLAY
D102
R101
R102
C103
R304
R303
R302
R301
C102
C101
C301
R317
C331
C333
R319
C325
C319
R330
C320
C324
C337
R323
C332
C334
C328
C326
R326
C353
C303
C318
R318
D317
C304
C357
C312
C310
C355
Q312
R316
JR322
JR311
JR310
R328
R322
R320
Q311
Q310
JR313
JR312
R321
JR325
C361
R365
C393
R327
C365
C309
IC301
JR300
C300
C317
R325
C412
C352
C425
C356
R329
R380
R355
R356
C342
R354
R358
R397
CN101
C351
JR354
R399
R398
R395
R396
JR356
R469
R464
C314
JK302
R450
R449
R289
JR361
R445
Q405
R443
C302
C366
C362
R442
R436
R490
R440
R462
R324
C354
Q402
R463
Q408
Q407
R447
C327
C413
JR362
R444
C410
R446
R448
Q404
C313
C411
R441
R489
C321
C323
C414
R452
C415
R451
C311
R290
10EDB40-TB3
10k
10k
100
16V
22k
22k
4.7k
4.7k
4.7
50V
50V
4.7
50V
50V
10 50V
2.2k
0.22
0.22
1k
0.047
0.047
10k
0.022
0.022
10
50V
1k
0.22
0.22
0.0027
0.047
10k
470p
100
10V
10V
10
50V
2.2k
1SS355
4.7
50V
50V
1000
10V
10
50V
10
50V
470p
2SA1235F
10k
0
0
0
33k
15k
1k
2SD1306
2SD1306
0
0
15k
0
220p
1M
0.47
50V
4.7k
220p
10
50V
M61529FP
0
1
10
50V
10k
4.7
35V
35V
470p
470p
470p
0
470k
2.2k
2.2k
0.1
47k
22k
10k
11P
470p
0
4.7k
4.7k
3.9k
3.9k
0
100k
22k
10
16V
4P
1k
1k
27k
0
2.2k
2SC3052
1.5k
10
50V
220p
220p
1.5k
27k
2.7k
100k
1k
2.2k
470p
2SC3052
10k
2SA1235F
2SC3052
1k
0.0027
4.7
50V
0
2.2k
4.7
50V
50V
10k
1k
2SC3052
10
16V
4.7
35V
35V
100k
2.7k
0.022
0.022
470p
100k
470p
100k
10
50V
10
A1
A2
A4
A5
A6
A7
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
C2
C1
C3
C4
C5
CLK
CE
TUNED
ST
TUMUTE
D
I
V
A
C
S
/S
T
R
DO
DI
MIC-SIG
MCLK
-VFL
26
25
-VFL
CLK
DI
DO
CE
TUNED
ST
TUNER-L
GND
TUNER-R
TU-MUTE
VM+9V
C
LOCK
G
ND
SW
O
U
T
OU
T2
B
B_B2
BB_A
2
VO
LIN
2
S
UR2/D
PL2
SUR
1/DPL1
CD-L
TUN
ER-L
TAPE-L
M
D-L
GA
M
E-L
RECB-2
TM
I2
TM
O
2
TC
A2
TC
B2
TCC
2
TOU
T2
RE
F
M
IC
C
D-R
TUN
ER-R
TAPE-R
M
D-R
G
A
M
E-R
REC
B-1
TM
I1
TM
O
1
TCA1
TCB1
TCC
1
TO
UT1
VOLIN1
BB-A1
B
B-B1
O
UT1
SA
OU
T
VCC
DA
TA
(1/4)
MUTING
CONTROL
SWITCH
MUTING
MUTING
INPUT SELECT SWITCH,
TONE CONTROL,
ELECTRICAL VOLUME,
BASS BOOST AMP
L
R
MD(VIDEO)
IN
THE ASSEMBLED
BLOCK
SUPPLIED WITH
TUNER UNIT
(COAXIAL)
AM
LOOP
ANTENNA
L
R
MD(VIDEO)
OUT
REC AMP
MUTING
REC AMP
MUTING
CONTROL
SWITCH
MUTING
FM 75
Ω
(Page 37)
(Page 39)
(Page 38)
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