Sharp 1-BIT AMPLIFIER SM-SX1 Service Manual page 15

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P18 1-C
P18 1-A
TO 1BIT AMP.
TO 1BIT AMP.
PWB
PWB
CNWAM2A
CNWAM1A
CNP303
CNP304
CNP305
1
2
3
4
5
6
1
2
3
4
ME
5
4
3
2
1
0
+B
R363
C349
Q313
390
220P
2SA1036KR
R361
100
Q315
2SA1036KR
D
D
2
6
R359
S
S
1M
Q321
R371
2SK389BL
820
R365
Q323
390
2SJ109BL
C353
S
S
0.0047
2
6
C347
D
D
0.0047
Q317
2SC2412KR
Q319
C351
2SC2412KR
10/25
R367
390
Q310
-B
2SA1037KR
C340
R349
R350
0.01
82K
10K
-B
1
C339
R346
0.1
02K
4.7K
R356
4
4.7K
R347
3
R351
+
4.7K
1
02K
100K
2
D323
R353
DAN202K
5
10K
+
1
7
6
8
+B
IC307
C342
0.01
NJM4558M
MOTOR DRIVE
7
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P19 12-C
P19 12-A
TO 1BIT AMP.
TO 1BIT AMP.
PWB
PWB
CNWAM3A
CNSA4
CNP306
5
4
3
2
1
4
3
2
1
+B
L301
220µH
L302
220µH
L303
220µH
+B
-B
+B
+B
-B
+B
+B
+B
R382
8.2K
R383
8.2K
D
S
+B
S
+B
+B
+B
D
Q309
TP77
2SD2394F
R329
3.3K
R330
0.2
1
3
+B
2
IC306
R331
3.3K
NJM431U
R355
100K
+B
+B
D328
DAN202K
+B
-B
+B
IC304: -12V VOLTAGE
+B
8
9
Figure 15 SCHEMATIC DIAGRAM (2/10)
R307
RLY303
0.1
+B
1
2
+B
8
5
+B
+B
+B
7
4
D303
Q303
DAN202K
2SC2412KR
+B
C302
0.1
R308
100K
+B
+B
Q304
D326
2SD2394F
1SR154
-B
R310
1.5K
-B
R311
R312
1.5K
1K
1
3
IC301
2
NJM431U
R313
1K
REGULATOR
D325
R391
1SR154
2.2
D324
1SR154
IC302: CD/CD CONVERTER
+B
C306
R314
D304
47/20
20E4FD
22
ZD301
2
MTZJ160A
R315
THY301
1K
SF3G48
1
3
9
IC302
2
TZ0775AF
3
1
7
6
5
4
8
+B
R316
IC303
2.7K
D306
NJM78M05
1SR154
+B
1
3
D305
2
1SR154
C313
C314
10/25
10/25
D308
1SR154
+B
D307
Q306
1SR154
2SC3242
+B
+B
+B
Q307
2SC3242
C317
100/16
IC304
C321
C323
NJM78M12
+B
10/25
+10V
0.01
R396
1
3
8.2
2
C325
C327
IC305
33/35
0.01
NJM79M12
D314
C328
1SR154
0.01
–10V
1
2
R397
D313
C322
3
8.2
1SR154
C324
C326
0.01
10/25
33/35
TP104
R324
22K
R325
REGULATOR
22K
ZD304
R326
HZ5BLL
R327
22K
6.8K
CORE
CNS302C
8
7
10
– 15 –
SM-SX1/SX1W
+24V
+B
R309
2.7K
+B
R390
4.7
D327
1SR154
–24V
+B
+B
C307
0.01
R392
0.7
+B
R317
470K
C312
0.22
R393
2.2
+B
+B
D311
1SR154
+B
D312
D310
1SR154
1SR154
C356
KZ1250
CHASSIS
D315
GROUND
1SR154
R323
22K
+B
+B
+B
CNP302
1
2
3
CNS302A
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
CNS302B
UNT1
UNT2
FROM AC/DC CONVERTER
P22 4-E
P22 4-E
11
12

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