Sony XM-GTR7040 Service Manual ▷ View online
XM-GTR7040
9
MEMO
XM-GTR7040
10
SECTION 3
DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
•
• X : Parts extracted from the component side.
•
: Pattern from the side which enables seeing.
For Schematic Diagrams.
Note:
• All capacitors are in
• All capacitors are in
μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω and 1/4 W or less unless otherwise
specifi ed.
• C : Panel designation.
• A : B+ Line.
• B : B– Line.
• Power voltage is dc 14.4 V and fed with regulated dc
• B : B– Line.
• Power voltage is dc 14.4 V and fed with regulated dc
power supply from +12 V and REM terminals.
• Voltages are dc with respect to ground under no-signal
conditions.
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
AUDIO
• Note for Replacement of the Transistors
The transistors Q110, 111, 210, 211, 310, 311, 410 and 411 have
two different ranks: P rank and Y rank.
The rank of these transistors need to be selected properly accord-
ing to each channel. When replacing any one of these transistors,
check its rank and replace with the appropriate transistor of the
same rank.
The transistors Q110, 111, 210, 211, 310, 311, 410 and 411 have
two different ranks: P rank and Y rank.
The rank of these transistors need to be selected properly accord-
ing to each channel. When replacing any one of these transistors,
check its rank and replace with the appropriate transistor of the
same rank.
Rank
Q110, 210, 310, 410
Q111, 211, 311, 411
P
2SC5100-P
(Part No. 8-729-024-79)
2SA1908-P
(Part No. 8-872-024-76)
Y
2SC5100-Y
(Part No. 8-729-024-80)
2SA1908-Y
(Part No. 8-872-024-77)
DISCRIMINATION:
• Waveform
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
A1908: 2SA1908
C5100: 2SC5100
C5100: 2SC5100
P: RANK P
Y: RANK Y
Y: RANK Y
• IC Block Diagram
IC901 TL594INSR (MAIN Board (3/3))
3 Vp-p
19.8
Psec
1
IC901
5 (CT)
1 V/DIV, 5
Psec/DIV
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7 8
OSC
REF 5V
0.1V
ERROR
ERROR
+IN
-IN
COMPEN
TIME
CT
RT
GND
C1
+
+
-
-
NON
INV
VREF
OUT
VCC
C2
E2
E1
Q2
Q1
XM-GTR7040
XM-GTR7040
11
11
3-1. BLOCK DIAGRAM
2
3
3
PRE AMP
IC101 (1/2)
1
BOOT AMP
IC109 (1/2)
DIFFERENTIAL
AMP
Q103
POWER
AMP
Q108,110
DRIVE
AMP
Q104
DIFFERENTIAL
AMP
Q102
POWER
AMP
Q109,111
DRIVE
AMP
Q105
BIAS
Q106,107
BIAS
Q206,207
CNJ101 (1/2)
CN901
MUTE
Q101
+12V
GND
9
PRE AMP
IC101 (2/2)
DIFFERENTIAL
AMP
Q203
POWER
AMP
Q208,210
DRIVE
AMP
Q204
DIFFERENTIAL
AMP
Q202
INITIAL
MUTE
Q830
POWER
AMP
Q209,211
DRIVE
AMP
Q205
-3
-2
-4
FL
FR
RL
RR
-1
L
FRONT
INPUT
D601
D605
REAR (L+R)
R
CN903
L
R
MUTE
Q201
REM SWITCH
Q835,836
1
2
2
14
12
REF.
5V
CN904 (2/2)
F901
25A
SWITCHING
DRIVER
Q201,203,205
SWITCHING
DRIVER
Q202,204,206
8
10
11
3
D943
POWER/
PROTECTOR
FRONT
SPEAKER
OUT
DC-DC
CONVERTER
TRANSFORMER
T901
DC-DC CONVERTER
IC901
B+
SWITCH
Q920
REM
DETECT
Q923
OVERLOAD
DET
Q112
OVERLOAD
DET
Q212
CN904 (1/2)
L
(L+R)
R
REAR
SPEAKER
OUT
5
6
6
CNJ101 (2/2)
L
R
REM
PROTECTOR
LATCH
Q941,942
DC BALANCE
PROTECT
(REAR)
Q805,806
DC BALANCE
PROTECT
(FRONT)
Q803,804
POWER
ON/OFF
Q921
+38V
D820
+34V
–34V
–38V
D803,805
RECT
D801,802
RECT
D809-812
RECT
+15V
D804,806
RECT
(FRONT)
(REAR)
HIGH
LEVEL
INPUT
F902
25A
PRE AMP
IC301 (1/2)
BOOT AMP
IC309 (1/2)
DIFFERENTIAL
AMP
Q303
POWER
AMP
Q308,310
DRIVE
AMP
Q304
DIFFERENTIAL
AMP
Q302
POWER
AMP
Q309,311
DRIVE
AMP
Q305
MUTE
Q301
PRE AMP
IC301 (2/2)
DIFFERENTIAL
AMP
Q403
POWER
AMP
Q408,410
DRIVE
AMP
Q404
DIFFERENTIAL
AMP
Q402
POWER
AMP
Q409,411
DRIVE
AMP
Q405
MUTE
Q401
OVERLOAD
DET
Q412
5
2
3
3
6
TEMP.DET
TH901-903
TH901-903
R
(PROTECTOR)
G
(POWER)
THERMAL PROTECT
Q924,925
VCC
VREF
ERROR
ERROR
D921
INVERTER
SWITCH
Q943
OVER VOLTAGE
DETECT
Q922
D920
D701-703
(ILLUMINATION)
D941,
D942(1/2)
D942(2/2)
IC105 (1/2)
IC103 (1/2)
IC107 (1/2)
IC207 (1/2)
EQ
(HPF)
BOOT AMP
IC109 (2/2)
7
BOOT AMP
IC309 (2/2)
1
MUTE
DRIVER
Q931
MUTE
DRIVER
Q932
MUTE
DRIVER
Q933
MUTE
DRIVER
Q934
15
16
16
1
7
BIAS
Q306,307
BIAS
Q406,407
SLJQDO SDWK
: AUDIO
: AUDIO
SENSING
POWER ON
EQ
(LPF)
EQ
(LPF)
HPF
7
IC105 (2/2)
IC103 (2/2)
IC107 (2/2)
IC207 (2/2)
EQ
(HPF)
RV103
LEVEL
LEVEL
HP
S101
OFF
RV101
SUBSONIC
FILTER
RV104
LOW BOOST
(40Hz)
RV102
FILTER
LP
EQ
(LPF)
EQ
(LPF)
HPF
+15V
–15V
+15V REG
Q801
–15V REG
Q802
IC305 (1/2)
IC303 (1/2)
IC307 (1/2)
IC407 (1/2)
EQ
(HPF)
EQ
(LPF)
EQ
(LPF)
HPF
IC305 (2/2)
IC303 (2/2)
IC307 (2/2)
IC407 (2/2)
EQ
(HPF)
RV303
LEVEL
LEVEL
HP
S301
OFF
RV301
SUBSONIC
FILTER
RV304
LOW BOOST
(40Hz)
RV302
FILTER
LP
EQ
(LPF)
EQ
(LPF)
HPF
1
7
3
2
2
5
6
6
3
2
2
5
6
6
OVERLOAD
DET
Q312
XM-GTR7040
XM-GTR7040
12
12
•
: Uses unleaded solder.
3-2. PRINTED WIRING BOARD – MAIN Section –
1
A
B
C
D
E
F
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
C
LED ILLUMI (R)
BOARD
CNJ702
B
LED HI LEVEL
PROTECT
BOARD
CNJ902
0–qs
A
LED HI LEVEL
PROTECT
BOARD
CNJ902
1–9
R172
R272
Q803
R812
R171
R271
Q804
R168
R163
R165
R164
R167
R177
R178
R170
Q112
R268
R263
R265
R264
R267
R277
R278
Q212
R270
R368
R365
R363
R810
Q307
R364
R370
R367
R377
Q312
R378
R468
R463
R465
Q407
R464
R470
R467
R477
R478
Q412
R372
R371
R471
R811
R813
Q805
R939
R472
R920
C920
R922
R921
Q922
Q921
R926
R924
D920
C922
R930
Q925
R927
L901
R925
IC901
R931
R934
D921
R932
R933
R943
R941
C941
C943
R942
R951
D942
C924
Q905
R913
R914
R911
R912
R910
R909
C999
R903
R905
C905
R901
R902
R906
C906
D820
C800
Q406
Q306
Q106
Q206
R945
C822
C506
R506
R504
C504
C502
R502
D941
R953
R952
R907
R908
CN701
CN906
1
1
3
2
CN701
CN906
1
1
3
2
C946
R946
R944
Q942
C945
C801
C802
C950
D808
C816
C815
D807
R803
R804
C821
R801
R802
R621
R624
CN905
1
9
CN905
1
9
R625
R628
C921
C903
D101
D201
D202
R166
C152
R160
R157
R158
R159
R155
R156
R175
R176
D102
C252
R259
R258
R257
R260
R255
R256
R276
R275
C253
R266
C352
R360
R357
R358
R359
R355
R356
D302
D301
R376
R375
C353
R366
R460
R457
R458
R455
R456
D402
R459
D401
R476
R475
C453
C452
R466
R928
R929
Q835
R835
R830
R836
D835
D830
R505
D404
D403
D303
D304
C407
C307
C612
C614
C613
C616
C615
C618
C617
C611
R612
R614
R613
R615
R618
R617
C153
D203
D204
R611
R116
R114
R115
R122
R222
R216
R214
R210
R212
R110
R112
R215
R106
R102
R101
R202
R503
R501
R201
R402
R301
R401
C850
R312
R316
R416
R415
R414
R315
R314
C313
C413
IC309
IC407
IC305
IC307
IC301
IC101
IC303
IC103
IC105
IC109
IC107
IC207
R305
R405
R410
R304
C103
C303
R203
R104
R404
C512
R407
R307
C104
R105
C101
Q301
C204
C201
C203
R451
R351
R834
R832
R833
R352
R452
R462
R453
R461
R454
Q403
Q402
Q303
Q302
C809
R362
R353
R361
R354
R831
C213
C113
R109
R113
R111
C107
R208
R207
R108
R209
R213
R211
C207
R422
R322
R322
C403
R904
C810
R206
R103
R205
R806
R805
D810
D812
D809
D811
R302
C511
C304
C401
C404
JC850
JC841
JC268
JR107
JR207
JC370
JC363
JC468
JC467
JC901
JR618
JR301
D601
D605
Q832
Q831
Q833
Q834
Q401
Q924
Q923
D803
Q830
Q107
Q806
D805
Q906
Q207
JC701
R923
TP01
TP04
TP05
TP06
TP07
TP08
TP09
TP12
TP13
TP14
TP15
TP19
TP901
TP902
TP903
TP30
TP22
TP23
TP24
TP25
TP26
TP27
D801
K
A
A
Q210
C
E
B
Q311
Q310
E
C
B
E
C
B
E
C
B
Q410
E
C
B
Q211
C
E
B
Q110
C
E
B
Q111
C
E
B
D802
K
A
A
Q904
D801
D802
Q904
D
G
S
Q902
Q902
D
G
S
Q901
WHT
RED
WHT
WHT
RED
Q901
D
G
S
Q903
Q903
D
G
S
TP28
TP29
JC412
JC835
TP32
TP31
TP10
TP11
Q941
R412
R204
C301
JC101
JC104
JC106
JC113
JC114
JC115
JC116
JC117
JR101
JC201
JC220
JC269
JR103
JC301
JR112
JC303
JC304
JC315
JC321
JC703
JC704
JC706
JC707
JC709
JC834
JC836
JR201
JR217
JR102
JC102
JC103
JC108
JC109
JC110
JC111
JC119
S301
JC120
JC121
JC122
R118
R117
R119
R217
R219
R218
R221
R121
R220
R120
R317
R318
R417
R418
R419
R319
R421
R420
R320
R321
JC123
JC124
JC125
JC126
JC127
JC128
JC129
JC130
JC131
JC132
TP50
TP51
R851
R850
R999
R151
R154
R251
R254
R152
R252
R161
R162
R261
R262
R616
JR703
R153
R253
D103
D104
R107
JR113
JC708
Q101
Q201
Q102
Q202
Q103
Q203
Q836
R837
D804
D806
TH904
TH901
TH902
TH903
R408
R413
R313
R308
R403
R303
R406
R306
R310
R311
R309
R411
R409
JR422
JR108
JR109
JR110
JC140
JR120
JR106
JC105
JR111
C355
C455
R469
R369
L801
R269
R169
C155
C255
Q411
C900
C901
C902
C923
C944
C942
C803
C804
C805
C806
C824
C501
C823
T901
RV304
RV302
RV302
RV303
RV303
RV301
RV301
C315
C414
C154
C254
C311
CNJ101
INPUT
C411
C410
C505
C212
C210
C211
C206
C830
Q920
C451
C351
C306
C305
CN903
C205
C108
C109
C209
C208
C405
C406
C408
C312
C308
C314
C415
C454
C354
C115
C214
C110
C114
C215
C111
C106
C310
C412
C309
RV101
RV101
RV102
RV103
RV103
RV102
S101
S101
(FRONT)
(FRONT)
(FRONT)
(FRONT)
(REAR)
(REAR)
(REAR)
FILTER SELECTOR
(FRONT)
S301
(REAR)
RV104
C112
C409
C105
Q109
Q108
Q209
Q208
Q309
Q308
Q409
Q408
Q404
Q405
Q304
Q305
Q204
Q205
Q104
Q105
Q802
Q801
C818
C817
JW1
JW2
JW3
JW4
JW5
JW6
JW7
JW8
JW9
JW10
JW11
JW12
JW13
JW14
JW15
JW16
JW17
JW18
JW20
JW21
JW22
JW23
JW24
JW25
JW26
JW27
JW28
JW29
JW30
JW31
JW34
JW39
JW40
JW41
JW42
JW43
JW68
JW69
JW70
JW71
JW72
JW73
JW74
JW75
JW76
JW77
JW78
JW79
JW80
JW81
JW82
JW83
JW84
JW85
JW86
JW87
JW88
JW89
JW90
JW91
JW92
JW93
JW94
JW95
JW96
JW97
JW98
JW99
JW100
JW101
JW102
JW103
JW104
JW106
JW107
JW108
JW109
JW110
JW111
JW112
JW113
JW114
JW115
JW116
JW117
JW118
JW119
JW120
JW122
JW123
JW124
JW125
JW126
JW127
JW128
JW129
JW130
JW132
JW136
JW137
JW144
JW145
JW146
JW147
JW148
JW149
JW150
JW151
JW152
JW153
JW154
JW155
JW156
JW157
JW158
JW168
JW173
JW189
JW196
JW197
JW198
JW199
JW200
JW201
JW202
JW203
JW204
JW205
JW207
JW210
JW211
JW212
JW213
JW214
JW215
JW216
JW217
JW221
JW223
JW224
JW225
JW226
JW228
JW231
JW232
JW234
JW240
JW241
JW242
JW243
JW244
JW245
JW246
JW247
WHT
WHT
WHT
WHT
WHT
WHT
WHT
WHT
RED
JW121
JW184
JW238
JW249
JW250
JW251
JW252
JW253
JW254
C151
C251
JW235
JW218
JW237
JW236
JW131
JW174
JW177
JW170
JW169
JW44
JW255
JW256
JW135
JW138
JW19
JW140
JW161
JW163
JW162
JW164
JW167
C940
JW178
JW171
JW172
JW175
JW176
JW180
JW160
JW159
JW187
JW179
JW222
JW45
JW46
JW47
JW35
JW37
JW32
JW33
JW53
JW52
JW55
JW54
JW56
JW48
JW38
JW36
JW50
JW51
JW59
JW60
JW58
JW61
JW57
JW49
JW143
JW62
JW63
JW64
JW66
JW67
JW65
JW133
JW141
JW142
C813
C814
JW190
JW194
JW193
JW192
JW188
JW191
JW181
C811
C812
1-730-259- (11)
11
(
)
FILTER SELECTOR
(REAR)
(
)
REAR SPEAKER OUT
L
(L+R)
REM
GND
+12V
R
-1
L
-3
(L+R)
(L+R)
L
-2
R
-4
R
REAR
FRONT
FILTER
-1
-4
-2
-1
-1
-3
-2
-1
-2
SUBSONIC
FILTER
SUBSONIC
FILTER
LEVEL
FILTER
LEVEL
F901
CN904
25A
F902
25A
FRONT SPEAKER OUT
L
(L+R)
R
RV104
LOW BOOST
(40Hz)
LP OFF HP
-1
-2
-2
-1
RV304
LOW BOOST
(40Hz)
LP OFF HP
-4
-3
-2
-1
-1
-2
-4
-2
-2
-1
-3
-4
-3
-2
-1
-1
-2
(Page 13)
(Page 13)
(Page 13)
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