DOWNLOAD Sony XM-7557 Service Manual ↓ Size: 2.3 MB | Pages: 31 in PDF or view online for FREE

Model
XM-7557
Pages
31
Size
2.3 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
xm-7557.pdf
Date
PREV: Sony MDX-C8970R (serv.man2) Service Manual

Sony XM-7557 Service Manual ▷ View online

XM-7557
12
12
5-6. PRINTED WIRING BOARD – AMPLIFIER SECTION –
1
A
B
C
D
E
F
G
2
3
4
5
6
7
8
9
10
11
12
1-675-264-
11
09
R716
C745
C747
C746
R715
R713
R712
D706
R549
R548
R558
R530
R529
R540 R539
R559
Q511
Q510
Q412
Q520
Q509
Q410
Q310
Q210
Q110
Q112
Q111
Q211
Q212
Q311
Q312
D302
Q411
C710
R563
R561
R547
R557
R556
R546
R562
R560
R544
R584
R583
C71
1
R542
C727 C726
R582
R545
R565
R564
R571
R577
R568
R576
R570
R567
R577
R526
R717
R741
Q704
Q702
L701
D503
Q524
Q523
R569
Q522
Q521
R413
R316
R314
R703
R315
C703
R302
R416
R417
R412
R312
R317
R401
C401
C301
R301
R414
C410
R704
R407
R408
C407
R307
R308
C307
R415
R304
R303
C304
R306
C306
C406
R406
R403
R404
R305
C305
R405
C405
C404
R402
C206
R206
R105
C105
R208
R108
R117
C107
R207
C208
R116
R112
R113
C110
R214
R211
R106
R104
R103
R106
R205
R203
R702
R701
C204
R204
R1
15
R215
R102
R104
R202
R201
R101
R107
R1
10
R212
C210
R213
R1
14
R109
R
111
C108
R209
R720
R216
C734
R210
C310
R313
R310
R309
R311
C308
R409
R410
C408
R411
R436
R434
Q401
Q301
Q201
Q101
R433
R432 R431
R332 R331
R232 R231
R435
D401
D101
D202
D201
R336
R448
R578
R579
R581
R580
R444
R443
R348
C415
R423
R424
C413
C418
C41
1
R428
R427
R323
R324
C318
C313
R334
D505 D506 D403
C732
R731
R446
R346
R728
D716
R729
C730
R730 R726 R727
Q712 Q713 Q710 Q711
D402
R333
R335
R236
R234
R233
R235
R248
R148
R138
R136
R134
R133
R135
R222
R121
R122
R137
R139
C707
C706
Q113
R145
R140
R118
R218
R237
R239
R144
R344
R343
R143
R244
R243
R246
R146
C728
R722
C748
Q707
Q708
D303
Q213
Q313
Q214
Q709
R721
R725
D103
D203
R723
R724
R245
R240
R337
R238
Q314
R338
R345
R339
R340
Q414
Q413
R438
R440
R418
R318
R437
R439
R445
Q114
R132 R131
R220
R230
R221
D102
C704
R229
R219
R322
R320
R330
R321
R329
R319
R129
R1
19
R120
R130
D301
R541
R538
R528
R537
R527
R421
R429
R419
R422
R430
R420
R543
D501
D504
D502
D707
Q705
Q706
S
S
VR501,502
IDLING
S
S
S
S
S
C207
S
S
CNP708
CNP710
CNP803
1
10
E
D711
D710
D714
D715
D713
D712
D709
D708
T701
Q307
R326
R325
C314
Q306
Q304
Q305
CNP702
CNP805
1
10
1
9
IC704
IC703
IC705
IC706
IC702
IC701
1
9
CNP703
Q303
Q403
Q203
Q103
Q202
Q102
1
2
JW129
JW131
JW138
JW130
VR201
VR101
R442
R441
R342
R341
R242
R241
JW89
JW88
E
E
E
E
E
E
E
E
E
S
S
S
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
C111
C114
C216
C409
C309
C1
13
C213
C21
1
C503
C417
C317
C116
R126
R226
R225
R125
R124
R123
C1
15
C737
-28V
GND
+28V
+28V
GND
-28V
C720
C721
C738
C735
JW175
JW176
JW176
JW177
JW178
JW204
C736
C718
C719
R127
R128
C1
12
C1
18
R503
R447
JW200
JW199
JW198
JW202
JW248
JW247
JW246
JW242
JW255
JW254
JW253
JW258
JW257
JW256
JW249
JW250
JW251
JW252
C302
C303
C702
C701
JW261
JW259
C403
C102
C202
C203
C201
C101
JW260
C402
JW262
C103
JW263
JW264
JW245
JW244
JW243
JW203
JW193
JW192
JW191
JW195
JW196
JW200
JW179
JW171
JW709
JW169
JW168
JW167
JW166
JW165
JW164
JW163
JW162
JW161
JW180
JW181
JW182
JW183
JW184
JW185
JW186
JW187
JW188
JW189
JW190
JW201
JW197
R449
R450
R347
R349
R350
RV706
RV704
S706
Q302
Q402
JW268
JW267
JW266
JW320
JW324
JW314
JW331
JW3328
JW327
JW325
JW326
C217
C1
17
C742
C741
JW310
JW31
1
JW306
JW304
JW303
JW296
JW297
JW298
JW299
JW312
JW313
JW330
JW329
JW309
JW308
JW24
JW23
JW22
JW17
JW16
JW4
JW3
JW2
JW7
JW10
JW6
JW5
JW9
JW8
D701
JW1
JW12
JW11
JW15
JW14
JW13
JW29
JW32
JW295
JW294
JW291
JW290
JW289
JW287
JW286
JW285
JW284
JW283
JW282
JW281
JW280
JW279
JW278
JW300
JW301
JW302
JW230
JW229
JW228
JW227
JW221
JW241
JW220
JW218
JW216
JW214
JW215
JW213
JW227
JW209
JW208
JW207
JW206
JW336
JW73
JW75
JW76
JW77
JW78
JW79
JW226
JW225
JW224
JW223
JW222
JW293
JW28
JW27
JW307
JW334
JW333
JW332
JW322
JW323
JW275
JW319
JW318
JW317
JW316
JW315
JW314
JW265
JW25
JW26
JW30
JW288
JW292
C749
JW212
JW276
JW234
JW233
JW231
JW232
JW235
JW236
JW237
JW239
JW240
JW238
JW277
JW270
JW269
JW271
JW572
JW273
JW274
JW21
1
JW217
JW205
JW210
JW74
JW80
JW31
JW21
JW20
Q107
Q207
Q204
C214
Q206
Q205
Q109
Q209
C212
Q309
Q308
Q208
Q108
Q106
Q104
Q105
JW160
JW174
JW173
JW158
JW159
JW157
JW335
JW124
JW122
JW121
JW95
JW94
JW91
JW90
JW92
JW84
JW83
JW85
JW114
JW115
JW145
JW144
JW93
TP3
TP2
TP1
VR502
VR501
Q701
JW148
JW149
C725
C724
C723
C740
C739
C722
JW150
JW154
JW155
JW123
JW101
JW100
JW99
JW102
JW103
JW104
D702
D704
JW105
JW106
JW107
JW98
JW97
JW96
JW82
JW81
JW1
13
JW1
12
J
W
111
JW1
10
JW109
JW108
JW156
JW153
JW148
C531
R550
R551
C533
C523
R535
R555
R554
C529
C534
R536
R531
R532
C525
JW147
JW151
JW152
WOOFER
RR
FL
FR
RL
PRE-AMP
OVERCURRENT
HI-VOLT.
OFFSET
POWER SUPPLY
PRE-STAGE)
Q508
Q506
Q505
Q503
Q504
Q507
JW118
JW117
JW116
JW87
JW86
C526
JW126
JW125
JW72
JW70
JW48
JW47
JW46
JW45
JW44
JW43
JW55
JW56
JW57
JW58
J592
JW60
JW61
JW62
JW69
JW68
JW65
JW64
JW63
JW19
JW18
JW71
JW67
JW66
JW33
JW34
JW35
JW54
JW36
JW53
JW37
JW42
JW41
JW51
JW50
JW39
JW38
JW52
C316
C311
JW40
JW49
R327
R328
C312
Q407
Q404
Q406
Q409
Q408
Q405
R425
C414
C412
C416
VR401
VR301
R426
C315
C215
R224
R223
C218
R228
R227
Q515
D703
JW140
JW143
JW142
Q517
Q516
C532
JW132
JW134
JW133
JW135
JW141
JW136
JW137
Q518
Q519
Q514
Q512
R553
C530
C524
R534
R533
R552
Q513
JW128
JW139
JW127
R247
R249
R250
R740
R147
R149
R150
CNJ704
CN707
CN707
CN705
CN705
C209
C109
S703
VR701
VR703
TP4
TP5
TP6
TP7
C729
C733
C731
R142
R141
RY701
RY702
RY703
R575
R574 R573 R572
TH701
E
E
E
E
VR706
VR704
LEVEL
(MIN     MAX)
S706
DIRECT
(ON       OFF)
LOW BOOST
(40Hz)
(0dB       +10dB)
VR703
VR701
LEVEL
(MIN     MAX)
S703
DIRECT
(ON       OFF)
LOW BOOST
(40Hz)
(0dB       +10dB)
L
R
SPEAKER OUT
SUBWOOFER
SPEAKER OUT
MONO-R
CN704
L
R
SPEAKER OUT
MONO-L
AMPLIFIER BOARD
POWER BOARD
CNJ703
B
(Page 11)
BLU  TH
BLU  +15V
BLU  RELAY
BLU  MUTE.
BLU  OFFS
BLU  H-C
BLU  H-V
POWER BOARD
CNB805
A
(Page 16)
TO POWER BOARD
(Page 16)
POWER BOARD
CNJ702
C
(Page 11)
BLU  FAN
BLK   GND
BLU   +B
BLU  GND
BLU  OSC
BLU  
BLU  REAR.
BLU  FRONT
BLU MUTE
BLU +15V
SUB 1  BOARD
CNB710
E
(Page 11)
BLU  -15V
BLK   GND
BLU   SUB
TO
DC FAN MOTOR
RED
BLK
(Page 17)
TO TR BOARD
CNB803
BLU
BLU
BLK
1
3
CNJ701
RL
MONO-R
MONO-L
RR
FL
FL
INPUT
VR401
IDLING
VR301
IDLING
VR101,201
IDLING
E
E
E
E
D718
D717
E
E
E
E
E
E
E
E
E
E
E
E
E
E
XM-7557
13
13
D101
G-12
D102
G-11
D103
D-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-2
D709
D-2
D710
D-1
D711
D-1
D712
D-2
D713
D-2
D714
D-1
D715
D-1
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
E-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
E-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-7
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
E-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-1
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
5-7. SCHEMATIC DIAGRAM – AMPLIFIER (1/3)/FILTER/SUB 1/SUB 2 SECTION –
• See page 10 for IC Block Diagram.
FL
FR
RL
RR
C103
4.7/50V
R103
22k
C102 4.7/50V
R102
22k
R101
3.3k
C101
330
25V
C104
33P
5
6
8
8
4
8
4
4
7
6
5
7
3
2
1
4
8
5
6
7
2
3
1
3
2
1
IC703
NJM4580E(T1)
IC702
NJM4580E
(T1)
IC702
NJM4580E
(T1)
6
5
7
3
2
1
IC705
NJM4580E
(T1)
IC705
NJM4580E
(T1)
IC703
NJM4580E (T1)
IC704
NJM4580E (T1)
IC704
NJM4580E (T1)
R106 22k
C106 47P
R206 22k
C206 47P
C406 47P
C306 47P
R406 22k
R306 22k
R203
22k
C203
4.7/50V
R303
22k
C303
4.7/50V
R302
22k
C302
4.7/50V
R402
22k
C402
4.7/50V
R403
22k
C403
4.7/50V
R202
22k
C202
4.7/50V
R701
1k
R703
1k
R704
1k
R702
1k
VR701
LEVEL
(MIN-MAX)
R207
150
R307
150
R407
150
R107
150
C107 100P
R108 4.7k
C207 100P
R208 4.7k
R308 4.7k
C307 100P
R408 4.7k
C407 100P
C304
33P
C703 0.1
C404
33P
CNJ711
C514
100P
C515
47/16V
S707
INPUT-MODE
(F     F+R)
S710
TESTTONE
R517
4.7k
R516
3.3k
C516
0.22
VR707
FILTER
(50Hz-200Hz)
20KEX2
9
1
9
1
CNJ709 9P
CNP709 9P
L
R502 1k
C501 330/25V
C502 0.22
R
CNJ706
2P
R501 3.3k
C505
4.7/50V
R505
22k
R508
4.7M
R504 22k
C504
4.7/50V
R509 10k
R506 22k
C509 100P
R510
10k
C510
100P
C511 100P
R514 4.7k
5kc
IC713(1/2)
NJM4580E
(T1)
IC714(2/2)
NJM4580E
(T1)
IC715(2/2)
NJM4580E
(T1)
IC715(1/2)
NJM4580E(T1)
IC714 (1/2)
NJM4580E
(T1)
D705
1SS184-TE85L
IC713(2/2) NJM4580E(T1)
3
2
4
1
3
2
4
1
3
2
4
1
6
0
0
5
8
7
6
5
8
7
6
5
8
7
C508
33P
VR708
LEVEL
R513
150
C714
0.1
R512
22k
R511
22k
R515
1.5k
C715
0.1
C518
1/50V
C519
1/50V
C506
4.7/50V
C507
4.7/50V
R507 22k
R519
3.9k
C513 4.7/50V
C512 4.7/50V
R518
2.7k
R520
2k
VR709
20KE
BOOST
LOW CUT
FREQ
(7Hz-40Hz)
C520
100P
R521
3.3k
R522
1k
R523
10k
R524
10k
VR709(1/2)
20KE
Q502
2SC3327-A
Q501 2SC3327-A
R525
10k
R714 1k
R718 10K
R711 1K
R719 4.7k R709 4.7k R710 10k
R708
160k
R706
1.5k
R705
10k
C717
0.01
C716
0.01
C743
0.01
C744
0.01
R738
3.9k
R739
3.9k
R707 160k
1
2
3
4
6
5
8
7
S708
MODE
(LEVEL    BOOST)
10
10
1
1
CNJ710 10P
CNB710 10P
9P CNJ703
9P CNP703
C456
47/16V
C457
47/16V
LPF
FLAT
HPF
HPF
FLAT
LPF
R460
10k
R309
3.3k
R310
4.7k
IC711
NJM4580E
(T1)
IC712
NJM4580E
(T1)
IC712
NJM4580E
(T1)
IC711
NJM4580E(T1)
IC710(1/2)
NJM4580E
(T1)
R459
100
C455 0.015
C454 0.015
4
1
2
3
4
8
1
1
2
3
4
2
3
C453
0.15
C452
0.15
R457
2.2k
R454 10k
R456
2.2k
C451
100P
R452
6.8k
R455
10k
R453
22k
R451
10k
R351
10k
R353
22k
R356 2.2k
R357 2.2k C355 0.015
R354 10k
C354 0.015
C351 100P
R355
10k
C352
0.15
C353
0.15
C356
47/16V
C357
47/16V
IC710(2/2)
NJM4580E
(T1)
7
6
5
8
7
6
5
8
7
6
5
R352
6.8k
R359
100
R360
10k
5
6
8
7
Q301
2SC3624-T1L1718
LEVEL SHIFT
Q302
2SC3327-A
LINE SW
Q202
2SC3327-A
LINE SW
Q203
2SC3327-A
LINE SW
Q103
2SC3327
LINE SW
Q102
2SC3327-A
LINE SW
Q201
2SC3624-T1L1718
LEVEL SHIFT
Q101
2SC3624-T1L1718
LEVEL SHIFT
Q303
2SC3327-A
LINE SW
Q403
2SC3327-A
LINE SW
Q401
2SC3327-T1L1718
LEVEL SHIFT
IC706
NJM4580E (T1)
IC706
NJM4580E
(T1)
IC701
NJM4580E
(T1)
IC701
NJM4580E
(T1)
R311 3.3k
R411 3.3k
C308 100P
C408 100P
C309
4.7/50V
R312
680
R313
22k
R316
10k
R315
10k
R215
10k
R216
10k
R116
10k
R115
10k
R117
10k
R118
3.3k
R209
3.3k
R217
10k
R218
3.3k
C310
0.22
C410
0.22
C409
4.7/50V
R314 6.8k
R412
680
R413
22k
R414 6.8k
R317
10k
R417
10k
R416
10k
Q402
2SC3327-A
LINE SW
R415
10k
R318
3.3k
R418
3.3k
R410
4.7k
R409
3.3k
1
2
3
4
1
2
4
3
7
5
6
C208 100P
C108 100P
C158 100P
C258
100P
C209
4.7/50V
C109
4.7/50V
R210
4.7k
R109
3.3k
R110
4.7k
R211
3.3k
R111 3.3k
R212
680
R213
22k
R112
680
R113
22k
R214 6.8k
C210
0.22
R114 6.8k
C110
0.22
9P CNP702
9P CNJ702
C156
47/16V
C153
0.15
R160
10k
R159
100
R157 2.2k
R154 10k
R156 2.2k
R256 2.2k
R255
10k
R257
2.2k
C155 0.015
C154 0.015
C152 0.15
C253
0.15
C252
0.15
C255 0.015
C254 0.015
C251 100P
C157
47/16V
HPF
FLAT
LPF
LPF
FLAT
HPF
IC707
NJM4580E(T1)
IC708
NJM4580E
(T1)
R260
10k
R259
100
C257
47/16V
C256
47/16V
1
2
3
1
2
3
7
5
6
IC707
NJM4580E
(T1)
IC709 (1/2)
NJM4580E
(T1)
1
2
3
7
5
6
7
5
6
IC708
IC709(2/2)
NJM4580E (T1)
R254 10k
R152
6.8k
R252
6.8k
R253 22k
R153 22k
R251
10k
R151
10k
C151 100P
R155 10k
C701
220/16V
C702
220/16V
B–
B–
B+
B–
B+
B+
IC703
PRE. AMP
IC701
LOW BOOST
IC707,711
L.P.F
IC708,712
L.P.F
IC709,710
H.P.F
IC706
LOW BOOST
IC702
PRE. AMP
0
0
0
–15
15
B+
B+
B–
B+
B–
B–
B+
B–
15
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VR704
LEVEL
(MIN-MAX)
MONO-L
MONO-R
INPUT
CNJ701
4P
IC704
PRE. AMP
IC705
PRE. AMP
INPUT
SUB WOOFER
0
0
0
0
0
0
0
0
0
0
15
0
0
0
0
0
0
0.8
0.8
–15
15
–15
0
0
–15
15
0
(MIN-
MAX)
IC713
PRE. AMP
(1/2)
IC714
(2/2) H.P.F
IC715
LOW BOOST
IC716
LOWTEST TONE AMP
IC714
(1/2) L.P.F
VR710
5KC
BOOST
LEVEL
(0dB-+10dB)
(US/CND)
IC716 (2/2)
NJM4580E
(T1)
B–
B+
B+
B–
B–
B+
B+
9
1
B
+
0
0
0
15
0
0
0
0
0
0
0
0
0
15
0
0
0
0
0
0
0
0
–15
0
0
0
0
0
0
–15
0
0
8
8
8
NJM4580E (T1)
4
4
4
FILTER
(
)
S701
FILTER
(X1    X10)
1
1
9
9
B–
B+
B+
B–
B+
5KC
5KC
(ON    OFF)
0
0
0
0
0
0
0
0
0
0
0
0.8
15
0
0.8
0.8
0
15
–15
0
0
–0.6
0
0
0.8
0.8
–15
0
0
0
0.8
0.8
–0.6
0
0
–0.6
–0.6
15
0
0
0
B–
B+
B–
8
S704
FILTER
(X1    X10)
B–
FILTER
(
)
B
+
B–
–15
AMPLIFIER BOARD
0.8
S703
DIRECT
(ON    OFF)
0
B–
VR706
LOW BOOST
(0dB – +10dB)
VR703
LOW BOOST
(0dB – +10dB)
15
(US/CND)
IC716(1/2)
NJM4580E
(T1)
S709
DIRECT
(ON    OFF)
TO SUB-1 BOARD
S708
(LPF    OFF    HPF)
C358
100P
C458 100P
TO AMPLIFIER BOARD
(3/3)
TO AMPLIFIER BOARD (2/3)
(LPF    OFF    HPF)
XM-7557
14
14
5-8. SCHEMATIC DIAGRAM/PRINTED WIRING BOARD – AMPLIFIER (2/3)/LED/TR SECTION –   
• See page 10 for IC Block Diagram.
• Semiconductor
Location
Ref. No.
Location
D801
A-4
D802
A-4
D803
A-3
D804
A-2
D805
A-1
Q801
A-3
Q802
A-2
Q803
A-1
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
10P
Q109
2SC3423-Y
R131
1.5K
R132
1K
Q108
2SA1360JY
VR101
470
R127
22K
Q110
2SC1545-B
R133
100K
C116
0.1
R134
100K
R128
22K
C118 47/16V
R135
22
F5705MJ-2
D101
02CZ16-TE85L
D102
0ZCZ16
-TE85L
R136 22
Q111
FS70SMJ-2
POWER
AMP
R141
0.1X2
5W
R139
3.3K
R137
1K
Q113
2SA1162-Y
FX50SMJ-2
R142
0.1X2
5W
R138
1K
R140
3.3K
Q112
FX50SMJ-2
POWER
AMP
Q114
2SC2713L
-TE85R
D103
1SS181-TE85L
R143
10K
R144
10K
R145 10K
C706
1000P
C707
1000P
R146
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
10P
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
C216
0.1
R234
100K
R226
10K
R235 22
ES70SMJ-2
D201
02CZ16-TE85L
D202
02CZ16-TE85L
R236
22
C754
0.001
R241
0.1X2
5W
Q213
2SA1162-Y
OVER LOAD
R239
3.3K
Q211
FS70SMJ-2
POWER
AMP
R237
1K
D203
1SS181-TE85L
R243
10K
R244 10K
R245
10K
Q212
FX50SMJ-2
POWER
AMP
FX50SMJ-2
R240
3.3K
R242
0.1X2
5W
R238 1K
Q214
2SC2713L
-TE85R
R250
33
1W
R246
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
10P
Q310
2SC1545-B
R327
22K
C315
47/16V
R325 10K
R324 6.8K
R333
100K
C316
0.1
C318 47 16V
R334
100K
R328
22K
Q311
FS70SMJ-2
POWER
AMP
R335
22
FS70SMJ-2
D301
02CZ16-TE85L
D302
02CZ16
-TE85L
R336 22
R326 10K
R341
0.1X2
5W
Q313
2SA1162-Y
OVER LOAD
R339
3.3K
R337
1K
D303
1SS181-TE85L
R343
10K
R344
10K
R345 10K
Q312
FX50SMJ-2
POWER
AMP
FX50SMJ-2
R340
3.3K
R342
0.1X2
5W
R338
1K
Q314
2SC2713L
-TE85R
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
10P
Q410
2SC1545-B
Q409
2SC3423-Y
C418 47/16V
R428 22K
R426
10K
R435
22
R433
100K
C416
0.1
R434
100K
FS70SMJ-2
D401
02CZ16-TE85L
D402
02CZ16-TE85L
R436
22
R442
0.1X2
5W
R441
0.1X2
5W
Q411
FS70SMJ-2
POWER
AMP
R439
3.3K
R437
1K
Q412
FX50SMJ-2
POWER
AMP
Q413
2SA1162-Y
OVER LOAD
Q414
2SC2713L
-TE85R
D403
1SS181-TE85L
R443
10K
R444 10K
R445
10K
FX50SMJ-2
R440
3.3K
R438 1K
R346
470K
R347
33
1W
R349
33
1W
R350
33
1W
C317
0.047
R446
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
POWER
AMP
R529
47K
R527
4.7K
C523
10P
R537 220
C535 1  50V
VR501
470
C526
0.1
R541
100K
R543
22
R539
3.3K
R540
1K
R528
4.7K
R530
47K
R538 220
C536 1  50V
R535
22K
R542
100K
R536
22K
C533 47/16V
R534 10K
R544
22
D501
02CZ16-TE58L
D502
02CZ16
-TE58L
Q511
FX50SMJ-2
POWER
AMP
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-TE85L
R578 10K
R579
10K
Q521
2SA1162-Y
OVER LOAD
R545
470K
R503
10
5W
R582
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
10P
Q517
2SC3423-Y
Q518
2SC3421Y
R554
22K
R555
22K
R562
22
Q519
FS70SMJ-2
POWER
AMP
R569
750
Q522
2SA1162-Y
OVER LOAD
D506
1SS181-TE85L
R580
10K
R581
10K
R547
4.7K
R549
47K
R557 220
C538 1  50V
R563
22
R560
100K
R561
100K
D503
02CZ18-TE85L
D504
02CZ18-TE85L
C532
0.1
Q520
FX50SMJ-2
POWER
AMP
R567
1K
R577
10K
R571
750
R566
1K
R570
1.5K
R576
10K
Q524
2SC2713L
-TE85L
D718
RD12EB2
D717
RD12EB2
Q523
2SC2713L
-TE85R
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
OVER
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
TO AMPLIFIER BOARD (3/3)
TO AMPLIFIER BOARD (3/3)
TO AMPLIFIER BOARD (1/3)
CNB804
E
D802
D801
D803
D804
D805
1
7
LED BOARD
D
(Page 15 )
THERMAL
OFFSET
HI-CURRENT
OVER CURRENT
HI-VOLTAGE
POWER BOARD
CNP804
1
A
2
3
4
BLK    +B
BLU    GND
BLU    
TH
BLU    CFFS
BLU    O-C
BLU    H-V
BLU    H-C
R815
R812
R811
R810
R809
Q803
R814
R808
R807
R806
R805
Q802
R813
R804
R803
R802
R801
Q801
1-675-268-
11
09
E
E
R G
R G
R G
G
G
1-675-500- 11
Q703
CNB803
TR BOARD
1
E
3
09
TO  AMPLIFIER BOARD
CNP803
(Page 12)
XM-7557
15
15
5-9. PRINTED WIRING BOARD – POWER SECTION –
D903
F-9
D905
E-7
D906
E-8
D910
F-1
D912
E-2
D913
E-3
IC813
B-3
IC901
F-9
IC903
F-1
Q901
B-7
Q907
G-9
Q908
G-9
Q909
G-9
Q910
G-9
Q911
H-7
Q912
H-9
Q913
H-6
Q914
H-8
Q915
H-6
Q916
H-8
Q920
G-1
Q921
G-1
Q922
G-1
Q923
G-1
Q924
H-3
Q925
H-4
Q926
H-2
Q927
H-4
Q928
H-1
Q929
H-3
• Semiconductor
Location
Ref. No.
Location
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
R941
R964
R944
R829
R831
C804
R830
R940
R939
R937
R833
R943
R828
R938
R941
R936
C922
R832
R950
C928
R949
R946
R945
C937
R834
R836
R835
R837
C921
TH905
TH904
R952
R961
R954
R953
R955
R956
TH903
R947
R960
R959
R963
R962
R942
R951
C926
R948
D908
D911
Q919
Q812
Q81
1
D808
D909
D907
Q917
Q810
Q918
R824
C801
R825
R826
R827
Q808
Q807
R908
R906
R905
R902
C904
R904
R903
C902
D901
Q905
Q904
Q903
JR051
R820
R823
R822
R821
R819
R817
R818
R816
Q806
Q804
Q805
R909
C908
R914
C910
R915
R928
R927
R925
R924
R913
C919
R929
C91
1
R919
R920
R918
R921
R926
R916
R91
1
R910
R912
TH902
R917
Q906
D904
Q902
D902
Q809
D807
IC904
IC902
E
E
E
E
E
E
E
E
E
E
E
E
E
E
TH901
1-675-241-
11
POWER BOARD
(SIDE A)
C802
09
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