Read Sony XM-7557 (serv.man2) Service Manual online
XM-7557
9
9
• SCHEMATIC DIAGRAM/PRINTED WIRING BOARD – AMPLIFIER (2/3)/ SECTION –
R121
47K
Q105
2SC1841-FA
R119
4.7K
Q104
2SC1841-FA
42.3
-0.5
-42.3
-42.9
0.6
Q106
2SA988-FA
Q107
2SA988-FA
R120
4.7K
C113
22P
Q109
2SC3423-Y
R131
1.5K
R132
1K
Q108
2SA1360JY
VR101
470
D104
MTZJ-9.1B
R127
22K
Q110
2SC1545-B
R133
100K
100K
C116
0.1
R134
100K
100K
R128
22K
C118 47/16V
R135
22
F5705MJ-2
D101
02CZ16
D102
0ZCZ16
R136 22
Q111
FS70SMJ-2
R141
0.1X2
5W
R139
3.3K
R137
1K
Q113
2SA1162-Y
FX50SMJ-2
R142
0.1X2
5W
TP6
TP5
TP4
TP3
TP2
TP1
TP7
R138
1K
R140
3.3K
Q112
FX50SMJ-2
Q114
2SC2713L
D103
1SS181
R143
10K
R144
10K
R145 10K
C706
0.001
C707
0.001
R146
470K
470K
R149
33
1W
R150
33
1W
R147
33
1W
C117
0.047
R122
47K
R148 10K
R125 10K
R124 6.8K
C115
47/16V
R126
10K
R123 3.3
C114 47/16V
RY701
TXD2-
2M-12V
R248 10K
C214 47/16V
C215 47/16V
R223 4.7K
R224 6.8K
R225 10K
R219
4.7K
Q204
2SC1841-FA
Q206
2SA988-FA
Q205
2SC1841-FA
R220
4.7K
R222
47K
R221
47K
C704
1 50V
Q207
2SA988-FA
C213
22P
R231
1.5K
R232
1K
Q209
2SC3423-Y
Q208-210
DRIVE AMP
Q408-410
DRIVE AMP
R227
22K
VR201
470
Q208
2SA1360-Y
C218
47/16V
R228
22K
R233
100K
100K
C216
0.1
R234
100K
100K
R226
10K
R235 22
ES70SMJ-2
D201
02CZ16
D202
02CZ16
R236
22
C754
0.001
R241
0.1X2
5W
Q213
2SA1162-Y
OVER LOAD
R239
3.3K
Q211
FS70SMJ-2
R237
1K
D203
1SS181
R243
10K
R244 10K
R245
10K
Q212
FX50SMJ-2
FX50SMJ-2
R240
3.3K
R242
0.1X2
5W
R238 1K
Q214
2SC2713L
R250
33
1W
R246
470K
470K
R249
33
1W
R247
33
1W
C217
0.047
R321
47K
Q304
2SC1841-FA
Q305
2SC1841-FA
Q306
2SA988-FA
Q307
2SA988-FA
Q308
2SA1360-Y
Q309
2SC3423-Y
R319
4.7K
R320
4.7K
R322
47K
R348 10K
C314 47/16V
VR301
470
R331
1.5K
R332
1K
C313
22P
Q310
2SC1545-B
R327
22K
C315
47/16V
R325 10K
R324 6.8K
R333
100K
100K
C316
0.1
C318 47 16V
R334
100K
100K
R328
22K
Q311
FS70SMJ-2
R335
22
D301
02CZ16
D302
02CZ16
R336 22
R326 10K
R341
0.1X2
5W
Q313
2SA1162-Y
OVER LOAD
R339
3.3K
R337
1K
D303
1SS181
R343
10K
R344
10K
R345 10K
Q312
FX50SMJ-2
FX50SMJ-2
R340
3.3K
R342
0.1X2
5W
R338
1K
Q314
2SC2713L
R421
47K
R419
4.7K
Q404
2SC1841-FA
Q405
2SC1841-FA
Q406
2SA988-FA
Q407
2SA988-FA
Q408
2SA1360-Y
R420
4.7K
R422 47K
R323 3.3K
RY702
TX02-2M-12V
C414 47/16V
C415 47/16V
R423
4.7K
R448 10K
R424 6.8K
R425 10K
R427
22K
VR401
470
R431
1.5K
R432
1K
C413
22P
Q410
2SC1545-B
Q409
2SC3423-Y
C418 47/16V
R428 22K
R426
10K
R435
22
R433
100K
100K
C416
0.1
R434
100K
100K
D401
02CZ16
D402
02CZ16
R436
22
R442
0.1X2
5W
R441
0.1X2
5W
Q411
FS70SMJ-2
R439
3.3K
R437
1K
Q412
FX50SMJ-2
Q413
2SA1162-Y
OVER LOAD
Q414
2SC2713L
D403
1SS181
R443
10K
R444 10K
R445
10K
FX50SMJ-2
R440
3.3K
R438 1K
R346
470K
470K
R347
33
1W
R349
33
1W
R350
33
1W
C317
0.047
R446
470K
470K
R447
33
1W
R449
33
1W
R450
33
1W
C417
0.047
Q503
2SC1841-FA
Q504
2SC1841-FA
Q505
2SA988-FA
Q506
2SA988-FA
Q507
2SA1360-Y
Q508
2SC3423-Y
Q509
2SC3421Y
Q510
FS70SMJ-2
R529
47K
R527
4.7K
C523
22P
R537 220
C535 1 50V
VR501
470
C526
0.1
R541
100K
100K
R543
22
R539
3.3K
R540
1K
R528
4.7K
R530
47K
R538 220
C536 1 50V
R535
22K
R542
100K
100K
R536
22K
C533 47/16V
R534 10K
R544
22
D501
02CZ16
D502
02CZ16
Q511
FX50SMJ-2
R583 10K
R531 3.3K
R532 6.8K
R533 10K
C524
47/16V
C525 47/16V
Q516
2SA1360JY
R550
4.7K
C530 47/16V
R584 10K
RY703
TXD2-2M-12V
C531 47/16V
R552 10K
R551 6.8K
R553
10K
R564
1K
R565
1K
R568
1.5K
D505
1SS181
R578 10K
R579
10K
Q521
2SA1162-Y
OVER LOAD
R545
470K
470K
R503
10
5W
R582
470K
470K
C503
0.047
R548
47K
09
R546
4.7K
Q513
2SC1841-FA
Q512
2SC1841-FA
Q514
2SA988-FA
Q515
2SA988-FA
R556 220
C537 1 50V
VR502
470
R558
3.3K
C534
47/16V
R559
1K
C529
22P
Q517
2SC3423-Y
Q518
2SC3421Y
R554
22K
R555
22K
R562
22
Q519
FS70SMJ-2
R569
750
Q522
2SA1162-Y
OVER LOAD
D506
1SS181
R580
10K
R581
10K
R547
4.7K
R549
47K
R557 220
C538 1 50V
R563
22
R560
100K
100K
R561
100K
100K
D503
02CZ18
D504
02CZ18
C532
0.1
Q520
FX50SMJ-2
R567
1K
R577
10K
R571
750
R566
1K
R570
1.5K
R576
10K
Q524
2SC2712Y
D718
RD12EB2
D717
RD12EB2
Q523
2SC2712Y
Q104-107
DIFFERENTIAL
AMP
Q204-207
DIFFERENTIAL
AMP
Q108-110
DRIVE
AMP
Q308-310
DRIVE
AMP
Q507-509
DRIVE AMP
Q516-518
DRIVE AMP
B+
IDLING
IDLING
IDLING
IDLING
IDLING
IDLING
Q210
2SC1545-B
B
-
B-
B-
B-
B
+
B+
B+
B+
B+
B+
42.3
42.9
1.5
1.3
42.9
1.5
1.5
S
S
S
S
S
S
S
S
S
S
S
S
1.5
1.5
26.8
26.8
26.8
26.8
26.8
26.8
27.4
-0.6
-27.7
26.8
26.8
26.8
-27.7
-27.7
-27.7
-0.6
-0.3
-0.3
-1.8
-27.7
0
26.8
-27.7
-27.7
26.8
26.8
26.8
-27.7
26.8
26.8
0
0
-27.7
-27.7
26.8
27.4
0
0
0
27.4
-27.4
-27.4
-27.7
-1.8
1.5
1.5
27.4
27.4
-27.4
27.4
-27.4
-0.5
27.4
-0.5
1.6
-27.4
-1.8
-1.8
-1.8
-1.8
-42.9
-42.9
-42.9
-42.9
42.9
-42.8
42.9
42.9
1.5
1.4
1.4
1.3
B+
B
+
B-
B+
B-
B+
B-
B-
B+
B+
B+
B-
B
-
B
+
B
-
B
+
B
+
B
-
B
-
B-
B-
-1.8
1.3
1.3
-1.8
-1.8
-0.5
0
-0.5
-0.5
-0.5
-0.5
-0.5
0
0
0
0
0
-0.5
0.6
B-
B
-
Q304-307
DIFFERENTIAL
AMP
Q404-407
DIFFERENTIAL
AMP
Q503-506
DIFFERENTIAL
AMP
Q512-515
DIFFERENTIAL
AMP
B+
B+
B
+
B
-
B
+
B+
B-
B-
B-
B-
B-
42.9
-42.9
42.9
-42.9
42.9
-42.9
42.9
-42.8
42.8
-42.8
42.8
-42.3
42.3
42.3
-0.5
0.6
-0.5
0
0
0
0.6
-42.3
-42.3
-1.8
-1.8
1.4
-1.8
42.3
-0.5
0.6
-42.3
42.3
1.6
-42.8
1.6
42.9
-0.5
0.6
-42.3
-TB5
-TB5
-TB5
-TB5
OVER LODE
OVER LODE
OVER LODE
OVER LODE
OVER LOAD
OVER
LOAD
LOAD
OVER
LOAD
LOAD
L
R
L
R
MONO-L
MONO-R
CN704 4P
SPEAKER OUT
CN705 4P
CN705
2P
SPEAKER OUT
SUB WOOFER
SPEAKER OUT
B+
B+
-27.7
AMPLIFIER BOARD
C755
0.001
C756
0.001
NFB
OFF N ON
NFB
OFF N ON
NFB
OFF N ON
D204
MTZJ-9.1B
D304
MTZJ-9.1B
D404
MTZJ-9.1B
D507
MTZJ-9.1B
D508
MTZJ-9.1B
TO AMPLIFIER BOARD (3/3)
TO AMPLIFIER BOARD (3/3)
TO AMPLIFIER BOARD (1/3)
(Page 10)
(Page 10)
D101
G-12
D102
G-11
D103
E-9
D201
G-10
D202
G-10
D203
E-9
D301
G-8
D302
G-7
D303
E-8
D401
G-6
D402
G-7
D403
E-6
D501
G-4
D502
G-3
D503
G-2
D504
G-3
D505
E-5
D506
E-6
D701
G-12
D702
F-5
D703
F-1
D704
G-5
D706
E-1
D707
C-2
D708
D-1
D709
D-1
D710
D-1
D711
D-1
D712
D-2
D713
D-2
D714
D-2
D715
D-2
D716
D-8
D717
E-3
D718
D-3
IC701
B-10
IC702
B-9
IC703
B-8
IC704
B-7
IC705
B-6
IC706
B-5
Q101
A-10
Q102
B-9
Q103
B-11
Q104
F-12
Q105
F-12
Q106
F-11
Q107
F-11
Q108
G-12
Q109
G-11
Q110
G-11
Q111
G-12
Q112
G-11
Q113
F-12
Q114
E-12
Q201
A-10
Q202
B-9
Q203
B-11
Q204
F-10
Q205
F-10
Q206
F-9
Q207
F-9
Q208
G-10
Q209
G-9
Q210
G-9
• Semiconductor Location
Q211
G-10
Q212
G-9
Q213
F-9
Q214
E-9
Q301
A-5
Q302
A-7
Q303
A-5
Q304
F-8
Q305
F-8
Q306
F-7
Q307
F-7
Q308
G-8
Q309
G-7
Q310
G-8
Q311
G-8
Q312
G-7
Q313
E-8
Q314
E-8
Q401
A-5
Q402
A-7
Q403
B-5
Q404
F-6
Q405
F-6
Q406
F-5
Q407
F-5
Q408
G-6
Q409
G-5
Q410
G-6
Q411
G-6
Q412
G-5
Q413
F-5
Q414
E-5
Q503
F-4
Q504
F-4
Q505
F-4
Q506
F-4
Q507
G-4
Q508
G-4
Q509
G-4
Q510
G-4
Q511
G-3
Q512
F-2
Q513
F-2
Q514
F-1
Q515
F-2
Q516
G-2
Q517
G-1
Q518
G-2
Q519
G-2
Q520
G-1
Q521
E-4
Q522
E-4
Q523
E-3
Q524
E-3
Q701
E-1
Q702
E-1
Q704
C-2
Q705
C-1
Q706
C-2
Q707
C-10
Q708
D-9
Q709
D-10
Q710
D-8
Q711
D-8
Q712
D-7
Q713
D-7
Ref. No.
Location
Ref. No.
Location
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