Block Diagram - Sony XM-460GTX Service Manual

4-2. BLOCK DIAGRAM

PRE AMP
IC801 (1/2)
CNJ100-1
L 3
3
1
2
2
CNJ802 (1/2)
-1
L
HIGH -5
INPUT
LEVEL L
INPUT
(FRONT) -6
(FRONT)
R
-2
PRE AMP
R
IC801 (2/2)
CNJ100-2
R 6
7 5
5
6
PRE AMP
IC808 (1/2)
CNJ100-3
L
6
(L+R) 5
7
5
6
CNJ802 (2/2)
-3
L
HIGH -7
L
INPUT LEVEL
INPUT -8
(REAR)
(REAR) R
-4
R
PRE AMP
IC808 (2/2)
CNJ100-4
R
3
(L+R)
1 3
2
2
F901
CN800
25A
POWER
+12V
2
SWITCH
Q901
DC DET
F902
IC902
25A OVER
VOLTAGE
DETECT
Q902
GND 3
D829 D828
POWER
ON/OFF
REM 1
Q903
PL802
(PILOT LAMP)
LINE AMP
IC802 (1/2)
1
RV801-2
FILTER
RV803-1
RV801-1
LEVEL
FILTER
LINE AMP
IC802 (2/2)
7
RV801-3
FILTER
RV803-2
RV801-4
LEVEL
FILTER
LINE AMP HPF BPF
IC809 (1/2) IC811 (1/2) IC811 (2/2)
7 3 1 6 7
RV804-1 RV804-2
FILTER FILTER
RV806-1
LEVEL
LINE AMP HPF BPF
IC809 (2/2)
IC812 (1/2) IC812 (2/2)
1 3 1 6 7
RV804-3 RV804-4
FILTER FILTER
RV806-2
LEVEL
PROTECTION
Q812-814
DC-DC CONVERTER
IC901
VCC
12
REF.
REG
BUFFER
14
Q810 REF
1
2
LED LED
SWITCH SWITCH
Q808 Q809
15
R G
TEMP.DET
16
THN801,804-807
D811
3
POWER/
PROTECTOR
(FRONT)
S801-1
HPF
FILTER
IC806 (1/2)
HPF
LOW BOOST
IC806 (2/2)
OFF
3
1
2
5
7
6
(+14.2V)
BOOST
GAIN
RV802-1 Q101
LOW
HPF
BOOST
IC807 (1/2)
(40Hz)
LOW BOOST (–14.2V)
IC807 (2/2)
3
1
2
5
7
6
S801-2 (+14.2V)
FILTER
HPF
BOOST
GAIN
OFF
RV802-2
Q201
LOW
BOOST
(40Hz)
(–14.2V)
(REAR)
LPF
IC813 (1/2)
LOW BOOST
IC813 (2/2)
6 7
3
1
2
(+14.2V)
S802-1
FILTER
LPF BOOST
GAIN
OFF
RV805-1 Q301
LOW
HPF
BOOST
(40Hz)
LPF
(–14.2V)
IC814 (1/2)
LOW BOOST
IC814 (2/2)
6 7
3
1
2
S802-2
(+14.2V)
FILTER
LPF
BOOST
GAIN
OFF
RV805-2
Q401
HPF LOW
BOOST
(40Hz)
(–14.2V)
D903
DC-DC
CONVERTER
TRANSFORMER
T801
D904
11
SWITCHING
BUFFER
10 DRIVER
Q913
Q904,905
DRIVER
Q908,909
8
SWITCHING
BUFFER
9 DRIVER
Q912
Q906,907
D917
D918
11 11
LINE
SWITCH
Q102
DIFFERENTIAL DRIVE
AMP AMP
B+
Q103 Q107 RV104
BIAS
BIAS
Q111
DIFFERENTIAL DRIVE
AMP AMP
Q104 Q108
B–
LINE
SWITCH
Q202
DIFFERENTIAL DRIVE
AMP AMP
B+
Q203 Q207
RV204
BIAS
BIAS
Q211
DIFFERENTIAL DRIVE
AMP AMP
Q204 Q208
B–
LINE
SWITCH
Q302
DIFFERENTIAL DRIVE
AMP AMP
B+
Q303 Q307
RV304
BIAS
BIAS
Q311
DIFFERENTIAL DRIVE
AMP AMP
B–
Q304 Q308
LINE
SWITCH
Q402
DIFFERENTIAL DRIVE
AMP AMP
B+
Q403 Q407
RV404
BIAS
BIAS
Q411
DIFFERENTIAL DRIVE
AMP AMP
Q404 Q408
B–
SWITCH
B+
CONTROL
(+23.5V)
Q801,802
B+
D903,904
(+23.5V)
RECT
+14.2V
B+
REG
(+14.2V)
Q910
D906
B+
(+37V)
D905
B+
D905,906
(+30.5V)
RECT
D907
D907,908
RECT
B –
(–30.5V)
D911,912
D908
RECT
D912
B –
(–37V)
D911
–14.2V
B –
REG
(–14.2V)
D917,918 Q911
RECT
XM-460GTX
CN810
OVER LOAD
FRONT
DET
SPEAKER
Q112
OUT
POWER
AMP
Q109
L
POWER
AMP
Q110
OVER LOAD
DET
Q212
POWER
AMP
Q209
R
POWER
AMP
Q210
CN811
OVER LOAD
REAR
DET
SPEAKER
Q312
OUT
POWER
AMP
Q309
L
POWER
AMP (L+R)
Q310
OVER LOAD
DET
Q412
POWER
AMP
Q409
R
POWER
AMP
Q410
OFFSET
DET
Q803-805
PROTECT
DRIVER
Q850
• Signal path
: AUDIO