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SCHEMATIC DIAGRAM-7
B
MAIN CIRCUIT
C301
50V4.7
A
Q301
Q301,302
2SD2144STA
MUTING
Q302
C302
50V4.7
B
Q305
UN411FTA
MUTING CONT.
R312
1.8K
1.3V
1.2V
0V
C
Q309,310
2SD2144STA
ATTENUATOR
D
O
F
N
:POSITIVE VOLTAGE LINE
R305
0V
0V
1K
0.6V
Q303
R311
22K
Q303,304
2SD2144STA
ATTENUATOR
R306
1K
0.6V
Q304
0V
0V
Q306
UN411FTA
ATTENUATOR CONT.
1.1V
R335
0V
1K
0.6V
Q309
R336
1K
0.6V
Q310
0V
R374
C322
0
16V10
:NEGATIVE VOLTAGE LINE
:CD PLAYBACK SIGNAL LINE
R313
C303
3.9K
50V4.7
R307
1K
0.6V
IC301
M5218AP
BUFFER AMP
R308
1K
0.6V
R314
C304
3.9K
50V4.7
R319
150K
0.9V
C312
16V22
R327
C313
560
16V10
R325
0V
1K
0V
Q307
0V
IC302
Q307,308
NJM4558MTE1
2SD2144STA
BUFFER AMP
ATTENUATOR
R326
0V
1K
0V
Q308
0V
R322
R328
C314
8.2K
560
16V10
Q313,314
2SD2144STA
ATTENUATOR
R347
Q313
R345
1K
0V
1K
0.6V
R346
R348
1K
0.6V
2.2K
0V
Q314
A
B
C
C307
L301
10P
3.3
H
A
B
C305
R315
E
100P
270K
-10.4V
0V
0V
4
3
2
1
5
6
7
8
0V
0V
9.4V
C306
R316
100P
270K
C308
L302
10P
3.3
H
C317
5600P
C315
R329
100P
560K
-10.4V
0V
0V
4
3
2
1
5
6
7
8
0V
0V
9.4V
C316
R330
100P
180K
C318
27P
C320
R332
16V10
2.2K
D302
MA165TA
D301
MA700ATA
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