Sony XM-475GSX Service Manual ▷ View online
13
13
XM-475GSX
4-5. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 15 for IC Block Diagram and Common Note on Schematic Diagrams.
IC B/D
BA4558F-E2
C813
R852
R853
R854
IC815(1/2)
BA4558F-E2
C812
R851
R855
R860
R856
R909
R907
R908
R912
Q902
R915
L901
C913
R911
C914
C915
CN803
CN800
D902
D901
Q903
C806
R823
R827
Q813
Q811
R825
Q812
R829
R830
R826
C807
Q810
R824
Q809
R821
R820
R930
R931
R934
R914
R918
Q909
Q908
R929
R932
R933
R913
R917
D824
D825
D826
D827
R859
R858
IC815(2/2)
C814
D813
R861
D812
R857
R862
R863
D805
R838
R839
R926
R925
R928 R927
R916
R922
Q904
Q906
C805
PL801
C916
C917
C918
C919
C933
R921
R920
Q905
Q907
T801
C804
C937
R850
R902
C909
R904
R903
R905
C910
R901
R801
R805
Q802
R802
D801
R803
R804
R800
D802
C801
IC902
C912
C911
D903
D904
L902
D917
D918
C931
Q911
R924
C921
C929
D914
C928
D913
C920
C930
R923
Q910
R809
R808
R807
R806
Q805
Q803
Q804
C802
R810
C803
D907
D908
D909
D910
C922
C923
C926
C927
C950
C951
C952
C953
C955
C954
C957
C956
D822
D823
Q901
C808
THN804
THN805
THN806
THN807
THN801
C958
C959
C960
C961
L903
L904
L905
L906
L907
L908
L909
L910
R811
C816
C817
D829
D828
CN802
R906
IC901
Q801
C818
J151
R847
R845
R843
R841
R910
F901
R822
R828
C809
C924
C925
C815
D905
D906
D911
D912
(Page 12)
(Page 11)
• Waveform
IC901
5
1
1V/DIV, 5µsec/DIV
15µsec
3.4Vp-p
14
14
XM-475GSX
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
Q102
R227
D812
C808
R851
R862
R803
J71
J37
R242
J105
C904
R245
R843
Q207
R231
R140
C233
R440
C418
R916
R922
J151
THN801
R804
R450
Q908
Q909
R918
IC901
R800
R303
R850
C937
R902
R903
R905
J157
R839
D805
R838
J158
J156
J155
J148
J145
R431
Q902
Q903
R910
R908
R907
R906
R912
D902
Q804
D901
R915
J142
Q803
Q805
R131
C816
J201
R248
R829
R130
Q108
R228
R233
Q107
R129
R133
Q104
R229
Q802
R234
Q801
Q208
J94
J160
J95
D823
D822
R909
R826
Q813
Q812
R830
R827
J146
IC801
J118
J121
C802
R810
R808
R806
R807
J154
R338
R150
J116
C817
R825
R822
R820
R823
Q811
R857
Q810
J93
J159
Q809
C805
R854
C807
D802
Q203
C812
R858
R821
R901
C133
J152
Q103
C126
R128
C434
R328
Q304
Q303
R253
Q204
C322
R153
D801
R802
R332
R330
Q307
C815
Q308
R329
R333
Q404
Q403
C326
R430
R429
Q407
Q408
R432
R334
R203
R125
C115
R852
R811
R325
R348
R911
R809
R148
THN805
THN804
THN806
J96
J107
R841
J106
R243
Q302
R353
R225
C218
C320
C118 C117
C318
R425
C317
C426
C226
R340
C334
R139
C222
R320
R405
R305
J162
R406
R853
C303
C404
C104
R206
C103
C203
C204
R205
C120
J33
R863
C217
R855
R805
D813
R134
C433
J147
R103
R856
C219
C220
R859
C333
R241
C813
R861
R223
C419
C421
R423
C319
C415
C134
R304
C420
D906
D912
R326
C422
R226
C122
R106
R402
R201
J38
C221
C417
J3
J144
R302
R122
R301
R102
R202
J202
J79
C903
C403
R105
IC806
J84
J87
J83
J32
J40
R120
IC815
R403
Q201
C913
R306
C928
J74
R101
R126
R339
D914
J2
J1
R224
R123
R221
C213
J200
R421
J46
R422
J58
J60
IC813
IC814
C814
R220
R117
C113
J44
J80
R218
R217
C119
R230
R433
C902
Q101
R124
R118
R240
R121
IC807
R222
Q202
Q402
R232
C234
C411
R317
R319
C313
R418
R324
R419
R401
R318
R321
R323
C413
R417
Q401
Q301
R322
R426
R132
R860
D913
D829
R904
Q112
Q312
Q212
R135
R144
R136
R138
R141
R336
R341
R204
C211
C311
J70
R104
J50
C215
C111
J63
J61
J65
J39
J41
J45
J59
R453
C315
J66
J52
J51
J53
R920
J62
R404
J56
J55
J54
J57
R219
J72
R801
J203
C908
C907
R427
R934
R828
C905
R337
R345
R244
R235
J129
J101
R137
R237
J97
R142
R342
R350
R335
J123
J89
J132
J133
J104
J102
J119
R145
J117
R435
J114
J115
C906
R923
C929
R932
D828
J207
J36
J68
J163
J67
J88
R331
J81
J76
J17
J75
R327
R127
J73
J136
R428
D905
R924
J85
R434
J90
R239
R914
R917
R929
R913
J127
R921
R930
R931
R933
J122
J153
R824
D824
J134
J124
J98
R236
J130
IC808
J205
J100
R238
J108
J109
D825
R250
D826
J112
J113
J128
R344
J126
R845
J131
R420
R424
C914
C901
R443
R343
R143
C304
J204
R119
D911
R439
R437
R444
THN807
Q412
R442
R441
R436
J137
R438
R445
J140
J141
D827
R448
J139
R847
C819
C818
D907
Q110
C917
C919
Q109
JW210
JW217
Q209
C923
Q310
Q309
RV304
C927
JW36
JW86
R158
C926
C123
JW203
Q211
Q111
C955
C954
RV104
Q210
C956
R358
RV204
L906
C953
C960
JW211
L909
JW214
R151
C933
C915
F901
C128
IC902
JW42
CN101
RV404
R926
R925
JW96
C911
C912
C910
C961
L908
L907
C959
CN803
JW219
JW115
Q901
JW206
L904
C922
JW78
C950
C809
JW41
C806
JW34
JW35
D909
JW73
JW52
C918
JW80
JW49
C909
D918
C925
C801
JW30
JW207
JW53
L910
JW18
CN810
CN802
R251
Q911
C924
C920
JW48
C427
R258
JW70
C958
C228
PL801
L902
JW79
JW37
C916
L903
Q905
C323
C423
JW27
Q907
RV802
Q904
Q906
RV803
Q910
CNP101
D908
JW94
JW95
C114
C212
C112
C214
JW28
C223
C227
D903
Q311
JW31
D917
D904
JW202
JW205
JW204
JW20
CN800
JW218
JW33
JW51
JW74
JW39
JW67
JW66
JW54
JW32
JW47
C327
C127
JW65
JW24
JW25
JW23
JW26
JW19
D910
C803
JW40
JW114
C804
JW38
JW76
JW75
JW220
C921
JW46
T801
C951
JW212
L905
JW216
JW208
JW60
JW215
JW213
C952
JW209
C957
R927
R928
JW29
JW221
JW45
JW201
JW11
C102
C201
C101
JW6
JW4
JW7
JW10
JW3
C931
C930
Q410
Q409
R458
JW92
C402
JW13
JW5
CNJ100
C121
C301
C202
C401
C302
JW17
JW8
JW55
JW12
JW16
JW15
Q411
JW9
JW14
JW200
JW44
JW43
JW43
CNP201
C428
CN201
C328
JW93
RV805
R351
RV806
R451
C412
C314
C312
C414
CN811
L901
4-6. PRINTED WIRING BOARD — MAIN SECTION — • Refer to page 15 for Semiconductor Location and Common Note on Printed Wiring Boards.
(Page 10)
(Page 10)
(Page 10)
15
XM-475GSX
• IC Block Diagram
IC901 µPC494GS-T1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
OSC
REF. REG.
ERROR
ERROR
0.1V
Q111
F-13
Q112
F-13
Q201
G-8
Q202
E-8
Q203
E-11
Q204
E-10
Q207
D-11
Q208
E-11
Q209
D-12
Q210
E-12
Q211
D-13
Q212
D-13
Q301
G-5
Q302
G-4
Q303
E-5
Q304
E-5
Q307
D-4
Q308
E-4
Q309
D-3
Q310
E-3
Q311
D-3
Q312
D-2
Q401
H-6
Q402
G-4
Q403
F-5
Q404
F-5
Q407
F-4
Q408
E-4
Q409
F-3
Q410
G-3
Q411
F-3
Q412
G-3
Q801
F-9
Q802
F-9
Q803
C-13
Q804
C-13
Q805
C-13
Q809
H-11
Q810
G-13
Q811
G-13
Q812
G-13
Q813
G-13
Q901
F-10
Q902
G-10
Q903
G-10
Q904
B-9
Q905
B-8
Q906
B-7
Q907
B-6
Q908
B-8
Q909
B-7
Q910
F-7
Q911
F-6
D801
F-8
D802
F-8
D805
F-11
D812
F-9
D813
F-9
D822
G-13
D823
G-13
D824
F-13
D825
D-13
D826
D-2
D827
G-2
D828
H-12
D829
H-12
D901
G-10
D902
G-10
D903
E-7
D904
E-7
D905
D-8
D906
D-8
D907
B-10
D908
B-10
D909
B-5
D910
B-6
D911
D-8
D912
D-8
D913
E-7
D914
E-6
D917
E-6
D918
E-6
R141
F-13
R241
D-13
R341
D-2
R441
F-2
IC801
G-7
IC806
H-8
IC807
H-8
IC808
G-6
IC813
H-5
IC814
H-5
IC815
F-8
IC901
G-11
IC902
F-10
Q101
H-9
Q102
E-9
Q103
F-11
Q104
F-10
Q107
E-11
Q108
F-11
Q109
F-12
Q110
G-12
• Semiconductor Location (MAIN SECTION)
Ref. No.
Location
Ref. No.
Location
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
• 2 : nonflammable resistor.
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
• A : B+ Line.
• B : B– Line.
• Power voltage is dc 14.4V and fed with regulated dc power
• B : B– Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from +12V and REM terminals.
• Voltage is dc with respect to ground under no-signal
condition.
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
for printed wiring boards:
Note:
• X : parts extracted from the component side.
•
Note:
• X : parts extracted from the component side.
•
: Pattern from the side which enables seeing.
16
XM-475GSX
SECTION 5
EXPLODED VIEWS
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Accessories are given in the last of this parts list.
Ref. No.
Part No.
Description
Remark
R
R
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
NOTE:
• The mechanical parts with no reference
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
Ref. No.
Part No.
Description
Remark
5-1. HEAT SINK (MAIN) SECTION
1
3-239-398-11 PLATE (HEAT SINK), ORNAMENTAL
* 2
3-225-071-02 HEAT SINK (MAIN)
* 3
3-225-065-01 HOLDER, LED
4
1-681-206-11 LED BOARD
* 5
3-225-152-02 SHEET (LED), INSULATING
* 6
3-225-081-02 SHEET, INSULATING
* 7
3-225-068-02 PLATE, BOTTOM
8
3-225-185-01 SCREW (+B.TT.3X14)
9
3-225-153-02 SHEET (HEAT SINK), ADHESIVE
0 F901
1-533-743-11 FUSE (BLADE TYPE) (AUTO FUSE) 40A
#1
7-685-545-14 SCREW +BTP 3X6 TYPE2 N-S
#2
7-627-556-07 SCREW, PRECISION +P 2.6X2.8
A
B
A
B
#1
#1
#1
#1
F901
#2
#1
#1
1
2
9
3
4
5
6
7
8
8
8
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