Read Sony XM-SW3 Service Manual online
XM-SW3
XM-SW3
9
9
3-1. BLOCK DIAGRAM
5
6
6
PRE AMP
IC101 (2/2)
1
GAIN CONTROL AMP
IC103 (1/2)
DIFFERENTIAL
AMP
Q151
POWER
AMP
Q159
DRIVE
AMP
Q153
DIFFERENTIAL
AMP
Q152
POWER
AMP
Q160
DRIVE
AMP
Q154
BIAS
Q155,156
BIAS
Q255,256
J101
MUTE
SWITCH
Q131
+12V
GND
9
PRE AMP
IC101 (1/2)
DIFFERENTIAL
AMP
Q251
POWER
AMP
Q259
DRIVE
AMP
Q253
DIFFERENTIAL
AMP
Q252
MUTE
CONTROL
Q821-823
POWER
AMP
Q260
DRIVE
AMP
Q254
-1
-4
-2
-3
L
FULL RANGE
SUBWOOFER
R
TB901 (1/3)
TB901 (2/3)
L
R
MUTE
SWITCH
Q231
DC DETECT
Q903
1
2
2
14
12
REF.
REG
REG
TB901 (3/3)
F901
40A
SWITCHING
DRIVER
Q953
SWITCHING
DRIVER
Q954
DRIVER
Q951,952
8
10
11
3
D906
POWER/
PROTECTOR
DC-DC
CONVERTER
TRANSFORMER
T901
DC-DC CONVERTER
IC901
B+
SWITCH
Q902
OVERLOAD
DETECT
Q181
OVERLOAD
DETECT
Q281
L+R
3
2
2
L
(MONO)
R
REM
+15V REG
Q811
–15V REG
Q812
VOLTAGE
DETECT
Q907,908
OVERLOAD
PROTECT
(FULL RANGE)
Q911,913
POWER
ON/OFF
Q901
+25V
D907
+15V
–25V
–15V
D802
RECT
D801
RECT
(FULL RANGE)
(SUBWOOFER)
PRE AMP
IC301 (1/2)
GAIN CONTROL AMP
IC301 (2/2)
DIFFERENTIAL
AMP
Q351
POWER
AMP
Q359
DRIVE
AMP
Q353
DIFFERENTIAL
AMP
Q352
POWER
AMP
Q360
DRIVE
AMP
Q354
MUTE
SWITCH
Q331
DIFFERENTIAL
AMP
Q451
POWER
AMP
Q459
DRIVE
AMP
Q453
DIFFERENTIAL
AMP
Q452
POWER
AMP
Q460
DRIVE
AMP
Q157
DRIVE
AMP
Q158
DRIVE
AMP
Q257
DRIVE
AMP
Q258
DRIVE
AMP
Q357
DRIVE
AMP
Q358
DRIVE
AMP
Q457
DRIVE
AMP
Q458
DRIVE
AMP
Q454
OVERLOAD
DETECT
Q481
OVERLOAD
DETECT
Q381
2
3
3
TEMP.DETECT
TH901-903
LED DRIVER
Q909
RED
(PROTECTOR)
GRN
(POWER)
THERMAL DETECT
Q905,906
VCC
REF
D903
D902
D904
D905
OVER
VOLTAGE
DETECT
Q904
2
7
GAIN CONTROL AMP
IC103 (2/2)
6
5
7
MUTE
CONTROL
Q831
MUTE
CONTROL
Q832
MUTE
CONTROL
Q833
15
16
16
1
1
RV101-1
RV101-2
6
RV101
LEVEL
LEVEL
FULL RANGE
LEVEL
SUBWOOFER
RV301
SLJQDO SDWK
: AUDIO
: AUDIO
OVERLOAD
PROTECT
(SUBWOOFER)
Q912,914
7
FULL RANGE
SPEAKER OUT
SUBWOOFER
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