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Printed Wiring Board - Amplifier Section - Sony XM-7547 Service Manual

Stereo power amplifer
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XM-7547
5-6. PRINTED WIRING BOARD – AMPLIFIER SECTION –
• Semiconductor Location
AMPLIFIER BOARD
Ref. No.
Location
Ref. No.
Location
D101
H-12
Q202
B-9
D102
H-11
Q203
B-11
D103
F-11
Q204
G-9
D104
F-11
Q205
G-9
D105
E-9
Q206
G-9
D106
F-9
Q207
G-9
A
D201
H-9
Q208
G-9
D202
G-9
Q209
G-9
D203
F-8
Q210
H-8
D204
F-7
Q211
H-9
R885
D205
E-8
Q212
H-8
D206
F-8
Q213
E-9
D301
H-6
Q214
F-9
B
D302
H-5
Q215
E-8
D303
F-7
Q216
F-8
D304
F-7
Q301
A-4
D305
E-6
Q302
A-6
D306
F-6
Q303
A-4
D401
H-4
Q304
G-6
D402
G-3
Q305
G-5
D403
E-3
Q306
G-6
C
D404
E-2
Q307
G-5
D405
E-3
Q308
G-6
D406
F-3
Q309
G-5
D851
A-2
Q310
H-6
D853
C-1
Q311
H-6
D854
E-1
Q312
H-5
D855
E-1
Q313
E-6
D
D856
E-2
Q314
F-6
D857
E-1
Q315
E-6
D858
E-2
Q401
A-4
D859
E-1
Q402
A-6
D860
E-2
Q403
B-4
D861
E-1
Q405
G-3
D862
G-2
Q406
G-3
E
D863
G-7
Q407
G-3
D864
G-2
Q408
G-3
D865
G-7
Q409
G-3
Q410
H-3
IC801
B-8
Q411
H-3
IC802
B-9
Q412
H-2
IC806
B-10
Q413
E-3
F
IC807
B-7
Q414
F-3
IC808
B-6
Q415
E-3
IC812
B-4
Q416
F-3
IC851
A-1
Q851
H-1
Q852
C-12
Q101
A-10
Q853
C-2
Q102
A-9
Q854
C-1
G
E
Q103
A-10
Q855
D-1
Q852
Q104
G-11
Q856
D-2
Q105
G-11
Q857
C-12
Q106
G-11
Q858
C-12
Q107
G-11
Q859
A-12
Q108
G-11
Q860
A-12
Q109
G-11
Q861
A-12
H
Q110
H-11
Q111
H-12
Q112
H-11
Q113
E-12
1
Q114
F-12
09
Q115
E-12
Q116
F-12
Q201
A-10
DC FAN MOTOR
CN811
SPEAKER OUT
MONO
C+D
D
C
S851
TEST TONE
S851
R353
R413 E
R453
D851
R311
Q303
C414
C314
Q301
E
IC851
R310
C708
C307
JW589
Q403
E
JW590
C407 R408
R410 R409
C418
D853
R866
Q853
JW591
E
C897
C896
C898
E
E
C881
Q855
Q856
T851
D404 D403
TP401
JW691
C865
C866
D405
E
C887
C868
R450
Q413
Q415
JW692
C861
C862
E
JW693
D406
R443
E
JW625
C706
C707
Q416
Q414
JW626
R440
JW609
E
R435
C863
C864
R445
R451
R438
JW610
TP402
R457
RY802
R456
JW619
Q404
Q405
Q407
JW620
Q406
R421
R420
C886
JW621
Q409
Q408
C895
C894
Q851
JW622
C413
JW617
D402
JW623
CNP806
JW624
VR401
S
1
2
S
Q412
JW618
Q410
R427 R426
VR301,401
IDLING
2
3
4
TO
FILTER BOARD
CNJ807
B
CNJ809
INPUT
(Page 10)
MONO-R
MONO-L
D
C
B
VR804
VR802
S806
LOW BOOST
LEVEL
DIRECT
(40Hz)
(MIN
MAX)
(ON
OFF)
(0dB
+10dB)
CNJ807
C852
C854
R316
R854
VR804
VR802
S806
R411
C408
C409
JW570
Q402
C308
JW571
E
Q302
E
E
C309
JW572
R306
JW581
1
R312
R307
JW573
JW582
R414
C306
R309
JW574
R308
R314
JW583
IC808
C318
JW584
R303
IC812
JW585
R305
R301
R105
C406
C305
C304
R304
C105
R407
JW557
C303
JW558
JW554
R406
IC807
IC801
C403 C704
9
R404
CNP809
JW559
C405
R401
C205
R405
R403
R205
JW561
JW562
JW563
C880
C876
C877
JW686
JW688
E
JW687
D305
R350
Q313
Q315
JW689
E
D405
D306
R343
E
Q316
Q314
R340
R335
E
D204 D203
D304 D303
R345
R351
R338
C892
R357
R356
JW644
JW632
Q307
Q304
C893
Q306
Q305
JW633
JW638
R321
R320
R880
JW639
JW634
Q309
Q308
JW635
JW640
JW641
D302
C313
D301
JW642
VR301
S
S
Q310
Q312
Q311
JW643
JW652
R327 R326
5
6
7
12
12
FILTER BOARD
SPEAKER OUT
C
CNJ808
(Page 10)
A
B
S805
VR801
VR803
DIRECT
LEVEL
LOW BOOST
(ON
OFF)
(MIN
MAX)
(40Hz)
(0dB
+10dB)
S805
R116
VR801
VR803
C208 E
R112
R213
JW536
C109
JW537
C108
E
R107
R111
JW539
CNP808
C214
Q102
JW521
1
C106
C118
JW540
E
Q103 E
JW522
JW517
JW523
IC802
JR001
JW524
IC806
JW518
R115
R101
C206
R206
JW519
Q203
C104
R104
C703
R207
E
JW525
C103
C207
JW520
Q202
E
R210
JW526
C203
JW555
9
R208
R204
JW527
R209
JW556
R201
C218
JW528
JW529
JW530
JW531
JW532
JW531
JW535
C879
JW690
TP201
JW680
JW675
E
D205
JW676
R250
Q213
JW677
Q215
JW681
E
JW678
JW682
D206
R243
JW679
E
Q216
Q214
R240
D104 D103
R235
E
R245
R251
R238
R257
R157
TP202
RY801
R256
R156
JW653
Q107
Q204
Q207
Q205
Q105
Q206
R121
R221
R220
R884 R878
JW654
JW655
Q209
Q208
Q109
JW651
C213
VR201
D102
JW656
D202
JW694
JW657
VR101
S
S
Q212
Q211
TH851
Q112
R227 R226
Q210
VR101,201
IDLING
8
9
10
11
CN810
MONO
A+B
A
R253
R153
Q860 Q861
C871 E
E
C114
R877
C872
E
CNP805
10
R875
BLU RELAY
BLU +15V
BLU MUTE.
BLU OFFS
BLU H-C
BLU H-V
1
BLU FAN
R252
BLU TH
R152
E
R870
BLU +B
R872
BLK GND
E
-28V
A
C875
POWER BOARD
GND
CNB805
C874
(Page 15)
C878
+28V
TO POWER BOARD
(Page 15)
+28V
TP101
GND
-28V
JW672
D105
E
R150
Q113
Q115
JW673
E
JW674
D106
R143
E
Q116
Q114
R140
R135
E
R145
R151
R138
TP102
C882
JW663
Q104
JW671
C883
Q106
JW664
R120
JW665
Q108
JW666
JW667
JW668
C113
D101
JW669
S
S
Q110
Q111
JW670
R127 R126
1-675-240-
11
12

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