Read Sony XM-444 Service Manual online
11
11
XM-444
3-5. PRINTED WIRING BOARD • Refer to page 12 for Semiconductor Location and Common Note on Printed Wiring Boards.
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
G
R419
R429
R430
R422
R433
R420
R431
R415
R432
R426
R427
R326
R327
R333
R855
R861
R863
JR10
R121
R132
R961
R864
R862
R126
R127
R226
R227
R928
R926
R225
R125
R337
JR9
R437
R137
R237
JR2
R212
R318
R332
R930
R851
R929
R112
R418
R425
R428
R328
R228
R128
C413
R336
R423
B C E
R424
R421
R414
R417
R417
JR4
R413
R329
R330
R330
R316
R325
R323
R324
R324
C313
C314 R314
R317
R313
R852
Q851
Q853
Q901
Q801
Q802
C414
C860
R402
R302
C319
C320
CNJ802
HI LEVEL
(REAR)
(FRONT)
C219
C220
C220
C119
C120
C120
C420
C419
C308
C304
R303
C307
R409
R310
R408
C311
C408
R407
R321
R338
R301
JR1
C104
R103
R138
R101
C959
C862
C111
R113
R114
R117
R117
R118
R110
R133
1-684-682-
C114
R210
R206
IC802
1
4
8
5
1
4
8
5
8
5
1
4
8
5
1
4
8
5
1
4
1
4
8
5
IC803
IC901
IC801
IC805
IC806
IC804
R106
R107
C107
C108
R108
R109
R115
C113
C214 R217
R214
R233
R213
R915
R904
R906
R907
C805
R917
R927
R924
R925
R923
T901
DC-DC CONVERTER
TRANSFORMER
R901
R920
R918
R919
R922
R921
R913
R914
R815
R859
C853
C415
C412
C804
C802
C854
C905
C903
8
1
9
16
C914
C913
C915
C916
C917
C851
C312
C215
C115
C112
C920
C209
C210
C109
C110
C212
C918
C919
C315
C410
C309
C409
C406
C310
C306
C101
C102
C202
C861
C402
C302
JW20
C301
C401
C201
C904
C908
TH801
C910
C907
C901
C116
C416
C216
C911
C912
C316
R802
R810
LD801
R808
R807
C803
R436
R814
R905
R865
R916
R805
R806
R909
C852
JW152
R135
R435
R235
JW155
R335
JW154
JW153
JW150
JW145
JW99
JW76
JW136
JW135
JW144
JW142
JW143
JW139
JW138
JW124
JW151
JW131
JW156
JW133
JW110
JW109
JW108
JW107
JW105
JW104
JW104
JW106
JW102
JW101
JW72
JW73
JW113
JW112
JW111
JW111
JW114
JW115
JW116
JW117
JW53
JW132
JW103
JW75
JW78
JW90
JW91
JW96
L951
JW95
JW94
JW93
JW93
JW88
JW89
JW92
JW87
JW2
JW11
JW32
JW54
JW55
JW19
JW18
JW21
JW31
JW30
JW10
JW86
JW85
JW69
JW70
JW71
JW84
JW67
JW68
JW66
JW74
JW77
JW65
JW64
JW63
JW62
JW61
JW60
JW79
JW83
JW1
JW6
JW4
JW5
JW12
JW3
JW13
JW17
JW29
JW33
JW28
JW35
JW38
JW36
JW37
JW39
JW34
JW27
JW42
JW40
JW47
JW46
JW41
JW43
JW45
JW44
JW26
JW16
JW15
JW14
JW22
JW23
JW24
JW25
JW9
JW8
JW7
JW80
JW81
JW82
JW100
JW134
JW149
JW146
JW137
JW140
JW141
JW147
JW148
R858
R813
R811
R812
R236
R136
JR8
R809
R803
R801
C801
R902
C902
R903
R912
C909
R911
R910
C906
D804
JR7
R856
R857
R804
C213
R215
R129
R223
R224
R123
R124
Q107
R319
R320
R331
R322
R854
R412
R312
R315
R339
R309
R307
R306
R411
R311
R410
C859
R305
C118
C117
C864
C863
R308
C411
C417
C418
C317
C318
C217
C218
C303
R406
C407
R405
R304
C305
JR3
R853
JR6
JR5
C857
R131
R130
R122
B C E
Q112
B C E
D101
D102
Q101
E C B
Q203
D201
D202
Q201
E C B
D905
D402
Q401
E C B
D852
D906
Q301
E C B
Q307
E C B
Q803
B C E
Q412
B C E
D802
D801
D803
IC851
Q852
E C B
Q902
B E
C
Q407
E C B
Q312
E C B
D301
JW56
JW57
JW58
JW48
JW49
TH803
JW51
JW50
JW52
JW119
JW120
JW128
JW129
JW118
JW130
JW127
JW126
JW125
JW123
JW122
JW121
JW59
D851
D805
D806
D302
Q302
Q303
Q402
Q403
Q202
Q103
Q102
Q212
E C B
Q907
E C B
D401
D902
D901
Q908
E C B
Q207
B C E
R120
R222
R229
R231
R232
R221
R230
R218
R216
R220
R219
R119
R116
R207
R208
R209
C208
C207
R211
C211
R111
C858
C403
C404
C405
R404
R401
R403
R438
R439
C203
C204
C205
R204
R201
R203
R239
R238
R202
R102
R139
C103
R104
C105
R416
Q408
Q409
Q406
B C E
Q306
Q405
Q404
Q308
Q305
Q304
Q309
Q209
Q208
Q204
Q205
Q109
Q905
Q906
Q206
TH802
PL801
Q106
Q108
Q105
Q104
S801
VR801
VR802
C
E
E C B
E C B
B
C
D904
K A K
D903
A K A
Q211
B
C
E
-1
-2
-1
-2
F901
40A
CN801
REM
+12V
GND
S801
HPF(80Hz)
(FRONT)
VR801
LEVEL
(FRONT)
ON
OFF
S802
LPF(80Hz)
(REAR)
VR802
LEVEL
(REAR)
ON
OFF
CNJ801
INPUT
(REAR)
(FRONT)
-3
L (BTL)
-4
R
-1
L (BTL)
-2
R
-2
-1
S802
-2
-1
R
L
R
L
11
AMP BOARD
E
C
B
Q410
E
C
B
Q411
E
C
B
Q310
Q311
E
C
B
Q111
B
Q110
E
Q210
B
C
E
Q904
G D S
Q903
G D S
L901
POWER/
PROTECTOR
LD801
L
R
BTL
SPEAKER OUT
(REAR) (FRONT)
CN802
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