Read Sony XM-GS400 Service Manual online
XM-GS400
XM-GS400
10
10
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM
OVER LOAD
DETECT
Q112
PRE AMP
IC801
HIGH-PASS
FILTER
IC151
HIGH-PASS
FILTER
IC152
LOW-PASS
FILTER
IC153
LOW-PASS
FILTER
IC154
MUTING
SWITCH
SWITCH
Q101
DIFFERENTIAL
AMP
Q103
DIFFERENTIAL
AMP
Q102
DRIVE
AMP
Q104
DRIVE
AMP
Q105
POWER
AMP
Q108, 110
POWER
AMP
Q109, 111
RV151
FRONT
SUBSONIC
FILTER
RV153
OVER LOAD
PROTECT
Q803, 804
Q803, 804
FRONT
LEVEL
RV154
FRONT
LOW BOOST
(40 Hz)
RV152-2
FRONT
FILTER
FILTER
RV152-1
FRONT
FILTER
FILTER
MUTING
Q151
BIAS
Q106, 107
S151
HP
OFF
LP
+
+
R-CH
R-CH
R-CH
OVER LOAD
DETECT
Q312
PRE AMP
IC802
BOOST
AMP
IC355
BOOST
AMP
IC155
HIGH-PASS
FILTER
IC351
HIGH-PASS
FILTER
IC352
LOW-PASS
FILTER
IC353
LOW-PASS
FILTER
IC354
MUTING
SWITCH
SWITCH
Q301
DIFFERENTIAL
AMP
Q303
DIFFERENTIAL
AMP
Q302
DRIVE
AMP
Q304
DRIVE
AMP
Q305
POWER
AMP
Q308, 310
POWER
AMP
Q309, 311
RV351
REAR
SUBSONIC
FILTER
RV353
OVER LOAD
PROTECT
Q805, 806
Q805, 806
REAR
LEVEL
RV354
REAR
LOW BOOST
(40 Hz)
RV352-2
REAR
FILTER
SENSING POWER ON
HIGH LEVEL INPUT
RV352-1
REAR
FILTER
MUTING
Q351
BIAS
Q306, 307
S351
+
+
R-CH
R-CH
R-CH
D813
D931
(PROTECTOR)
D929, 930
(ILLUMINATION)
PROTECTOR
DRIVER
Q911, 912
FAN MOTOR
DRIVER
Q701 – 705
MUTING
CONTROL
Q605 – 607
LED
DRIVER
Q913, 916
CN906
CNJ101
1
FL+
R-CH
R-CH
R-CH
2
FR+
R-CH
4
RR+
3
RL+
TB002
TB003
TB001
F902
F901
D904
B+ SWITCH
Q907, 908
DC DETECT
Q910
OVER VOLTAGE
DETECT
Q909
TH904 – 906
M901
(FAN)
M
THERMAL
DETECT
Q601
TH601 – 603
D606
Q604
MUTING
CONTROL
Q602, 603
DC/DC
CONVERTER
IC901
BUFFER
Q915
BUFFER
Q914
SWITCHING
DRIVER
Q901, 903, 905
–15V
REGULATOR
Q802
+15V
REGULATOR
Q801
SWITCHING
DRIVER
Q902, 904, 906
RECT
D925 – 928
RECT
D801, 802
RECT
D803, 923
+15V
–15V
+34V
+32V
RECT
D805, 924
–34V
–32V
T002
DC/DC
CONVERTER
TRANSFORMER
FRONT
FILTER
FILTER
SELECTOR
HP
OFF
LP
REAR
FILTER
SELECTOR
–
+
–
–
+
–
–
–
(L+R)
FRONT
SPEAKER
OUT
L
R
(L+R)
FRONT
INPUT
REAR
L
R
(L+R)
L
R
(L+R)
REAR
SPEAKER
OUT
L
R
+12V
30A
30A
REM
: AUDIO
SIGNAL PATH
R-ch is omitted due to same as L-ch.
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