Circuit Diagrams and PWB Layouts
10.
21SL9 Mono Carrier: Audio Amplifier
1
2
4
3
A
B
C
D
4
3
2
1
D
C
B
A
AUDIO AMPLIFIER
1
8
690_511_09072
3
.ep
s
09072
3
A6
A6
C412
4.7nF
C410
47uF
50V
C411
4.7nF
C409
220uF
100V
100V
C406
1000uF 25V
C407
1000uF 25V
R401
1K
R402
1K
R411
N.C
R412
N.C
A-L
A-L
R403
10K
25V
C408
0.1uF
R410
120K
R405
4.7K
Q401
C1815
R408
3.3K
Q402
C1015
D402
1N4148
C401
100uF 16V
R404 10K
50V
VOL
MUTE
+12V
A-L
A-R
1
2
3
4
CN401
TO SPEAKER
R
409
3.
3K
1/
2W
+18V
IN
2
1
OUT
2
2
CI
V
3
IN
1
4
GND
5
SVR
6
VC
7
OUT
1
8
VC
C
9
IC401
TFA9842AJ(TFA9841J FOR MONO)
D401
1N4148
C403
10uF 16V
C402
10uF 16V
P401
EAR PHONE
R
406
330
R
407
330
C4
05
0.
01uF
50V
C
404
0.
01uF
50V
T432
T437
T436
T435
T438
T439
T443
T440
R413
0
C413
470uF 25V
R414
4.7K
T442
T441
R418
10K
+5V
(MONO STANDBY)
(MONO MUTE)
R417
10K