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Schematic Diagram - Amplifier (2/3) Section - Sony XM-7547 Service Manual

Stereo power amplifer
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5-7. SCHEMATIC DIAGRAM – AMPLIFIER (2/3) SECTION –
B +
AMPLIFIER BOARD
Q104-107
DIFFERENTIAL
AMP
R120
47K
R121
47K
B-
R879
10
R878
10
B +
Q204-207
DIFFERENTIAL
AMP
R220
47K
R221
47K
B-
B +
Q304-307
DIFFERENTIAL
AMP
R320
47K
R321
47K
B-
R881
10
R880
10
B +
Q404-407
DIFFERENTIAL
AMP
R420
47K
R421 47K
B-
• See page 10 for IC Block Diagram.
R124
R118
C110
Q108
220
42.3
4.7K
0.1
2SA1360-Y
Q104
1.3
42.9
2SC1841-FA
Q106
R126
VR101
-0.5
-0.5
2SC1841-FA
3.3K
470
0.6
R127
Q110
C112
0
1K
2SC3421-Y
10P
Q107
Q105
2SA988-FA
2SA988-FA
-1.8
R125 220
-42.9
-42.3
R119
Q109
4.7K
B-
2SC3423-Y
C111 0.1
R155 6.8K
R154 3.3
C115 47/16V
Q108-110
C116
DRIVE
47/16V
AMP
C216 47/16V
C884
C885
4700P
4700P
R254 4.7K
C215 47/16V
R255 6.8K
C210 0.1
R248 10K
R218
Q208
4.7K
42.3
2SA1360-Y
R224 220
Q204
1.3
42.9
2SC1841-FA
R226
Q206
VR201
-0.5
3.3K
-0.5
2SC1841-FA
470
R227
Q210
C212
0
1K
10P
2SC3421-Y
0.6
Q207
2SA988-FA
0
Q205
-1.8
2SA988-FA
-42.9
-42.3
R219
R225
C211
4.7K
220
1
C310
B +
R318
R324
42.3
0.1
220
4.7K
Q304
1.3
42.9
2SC1841-FA
VR301
R326
Q306
-0.5
470
-0.5
3.3K
2SC1841-FA
Q310
R327
C312
0
1K
2SC3421-Y
Q307
10P
0.6
2SA988-FA
Q305
-1.8
Q309
2SA988-FA
-42.9
2SC3423-Y
R319
-42.3
R325 220
4.7K
C311 0.1
R348 10K
R354 3.3K
R355 6.8K
C315 47/16V
Q308-310
DRIVE
C316
AMP
47/16V
C416 47/16V
R454
C886
C887
4.7K
4700P
4700P
C415 47/16V
R455 6.8K
C410 0.1
Q408
R418
42.3
2SA1360-Y
4.7K
R424 220
Q404
1.3
42.9
2SC1841-FA
R426
VR401
Q406
-0.5
3.3K
470
-0.5
2SC1841-FA
Q410
C412
R427
0
2SC3421-Y
10P
1K
0
0.6
Q407
2SA988-FA
-1.8
Q405
2SA988-FA
-42.9
-42.3
R419
R425
C411
Q409
B-
4.7K
220
0.1
2SC3423-Y
TO AMPLIFIER BOARD (3/3)
(Page 14)
42.9
26.8
Q111
R132
FS70SMJ-2
22
1.5
POWER
1.5
AMP
S
IDLING
C113
R130
D101
0.1
100K
0
02CZ16-TE85L
R131
D102
100K
Q112
0ZCZ16-TE85L
S
FX50SMJ-2
R129
R133 22
POWER
R128
22K
AMP
22K
-1.8
-42.9
R157
10K 1/4W
R156 10K
-27.7
RY801
TXD2-
2M-12V
26.8
R256 10K
42.9
R257
Q211
10K
FS70SMJ-2
R228
R229
1.5
R232 22
POWER
22K
22K
AMP
ES70SMJ-2
S
0
R230
D201
1.5
100K
02CZ16-TE85L
C213
IDLING
D202
R231
0.1
02CZ16-TE85L
Q212
100K
S
FX50SMJ-2
POWER
AMP
R233
Q209
Q208-210
-1.8
22
2SC3423-Y
DRIVE AMP
B-
-27.7
-42.9
42.9
26.8
Q308
Q311
2SA1360-Y
R332
FS70SMJ-2
1.5
22
POWER
1.5
AMP
FS70SMJ-2
S
IDLING
C313
D301
R330
0.1
100K
0
02CZ16-TE85L
R331
D302
100K
Q312
02CZ16-TE85L
S
FX50SMJ-2
R333 22
R329
POWER
R328
B-
22K
AMP
22K
-1.8
R357 10K
-42.9
R356 10K
-27.7
RY802
TX02-2M-12V
R438
0.06X2
5W
26.8
R456 10K
42.9
R457
10K
Q411
R432
FS70SMJ-2
R428
1.5
R429 22K
22
POWER
22K
AMP
FS70SMJ-2
S
0
R430
D401
100K
1.5
02CZ16-TE85L
IDLING
D402
C413
R431
0.1
02CZ16-TE85L
100K
Q412
S
FX50SMJ-2
POWER
R433
AMP
Q408-410
-1.8
22
DRIVE AMP
-27.7
R440
-42.9
0.06X2
5W
13
13
Q113
R134
R146 10K
1K
2SA1162-Y
R147 10K
R138
R150
D103
0.06X2 5W
10K
1SS181-TE85R
D105 RD12EB2
26.8
C882
1000P
R143
26.8
26.8
2K
Q114
R135
2SA1162-Y
1K
R151 10K
OVER LOAD
D104
Q115
R136
R148
1SS181-TE85R
1K
2SC2712YG-TE85R
10K
-0.3
-27.7
D106
R149
R142
RD12EB2
OVER LOAD
10K
0.06X2 5W
-27.7
R145
Q116
2K
2SC2712YG
-TE85R
R137
C883
1K
1000P
Q213
R234
1K
2SA1162-Y
R246 10K
R247 10K
D203
R250
R238
1K
1SS181-TE85R
0.06X2 5W
D205
26.8
R243
RD12EB2
2K
26.8
Q214
C890
2SA1162-Y
1000P
OVER LOAD
R235
R251
D206
3.3K
10K
RD12EB2
-0.6
26.8
R236 1K
Q215
D204
-27.7
R248
1SS181-TE85R
2SC2712YG
10K
-TE85R
C891
1000P
R240
OVER LOAD
0.06X2 5W
R249 10K
R245
Q216
-27.7
2K
2SC2712YG
-TE85R
R237
R334
1K
R346 10K
1K
R347 10K
Q313
D303
R338
C892
2SA1162-Y
0.06X2 5W
1SS181-TE85R
1000P
26.8
R350
R343
10K
Q314
26.8
2K
R335
2SA1162-Y
1K
R351 10K
D305
OVER LOAD
RD12EB2
-0.3
D304
26.8
R336
R348
1SS181-TE85R
-27.7
Q315
1K
10K
2SC2712YG
-TE85R
D306 RD12EB2
R349
R340
10K
0.06X2 5W
OVER LOAD
-27.7
R345
2K
Q316
2SC2712YG
R337
C893
-TE85R
1K
1000P
Q413
R434
2SA1162-Y
R446 10K
1K
R447 10K
R450
D403
10K
1SS181-TE85R
D405
26.8
R443
RD12EB2
2K
26.8
Q414
C894
2SA1162-Y
1000P
OVER LOAD
R435
R451
10K
1K
-0.6
26.8
D404
R436 1K
R448
1SS181-TE85R
D406
10K
Q415
RD12EB2
2SC2712YG
-TE85R
OVER LOAD
R449 10K
R445
-27.7
2K
Q416
R437
2SC2712YG
C895
1K
-TE85R
1000P
D862 11ES2
D863 11ES2
D864 11ES2
D865 11ES2
TO AMPLIFIER BOARD (3/3)
(Page 14)
XM-7547
B +
R152
470K
R153
A
33
1W
C114
0.047
B-
B +
R252
470K
R253
B
33
1W
C214
0.047
B-
B +
R352
470K
R353
C
33
1W
C314
0.047
B-
R452
470K
R453
D
33
1W
C414
0.047
C708
0.01

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