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Schematic Diagram / Wiring Side Of P.w.board - Sharp SM-SX1 Service Manual

1-bit amplifier
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SM-SX1/SX1W
A
B
C
D
CNS801
E
1
2
3
4
5
6
7
CNP801
8
9
TO DIGITAL PWB
P17 12-E
10
11
12
GND(µ-COM)
13
PROTECT MID
14
F
15
16
CNS902
1
GND(µ-COM)
2
3
4
5
CNP902
6
7
TO
MICROCOMPUTER
8
PWB
9
P23 12-E
G
10
11
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 32.
1
MAIN PWB-A1
8
3
D301
DAN202K
+10V
+B
TP80
1
–10V
-B
TP81
2
AGND
TP82
3
D L+
TP84
4
D L–
TP85
5
DGND
TP86
6
DGND
TP87
7
D R–
TP88
8
D R+
TP89
9
5VD
+B
TP91
10
12V
+B
TP92
11
DIG/ANA
TP93
12
TP94
13
TP95
14
PROTECT
TP96
15
+24V
TP97
+B
16
BI302
VOL COMN
TP99
1
TP101
2
5V(µ-COM)
TP102
3
LED GND
TP105
4
IC-RESET
TP106
5
DIG/ANA
TP107
6
POWER
TP108
7
PROTECT
TP110
8
P-IN
TP111
9
YOBI
R398
10
100K
L MUTE
11
R399
100K
BI301
2
Figure 14 SCHEMATIC DIAGRAM (1/10)
RLY301
RLY302
7
7
8
9
9
NC
4
4
3
2
2
NC
D302
+B
DAN202K
+B
Q301
R304
2SC2412KR
1K
R305
R301
27K
1K
+B
R360
R362
100
390
C350
220P
Q316
2SA1036KR
D
D
6
R370
2
R372
820
S
S
Q322
2SK389BL
R364
Q324
R368
390
2SJ109BL
270
S
S
6
2
C354
0.0047
D
D
C352
10/25
2SC2412KR
R366
390
+B
-B
R332
R336
2.2K
180
C333
100/16
R337
150
R357
2.2K
R333
2.2K
R338
180
R334
150
R339
150
R335
150
+B
+B
+B
DGND
3
4
– 14 –
VOL301
MAIN VOLUME
1
2
3
4
5
6
7
8
9
R306
27K
IC308
R374
220
OPA2134
ANALOG AMP.
D
1M
8
S
2
1
+
3
5
S
+
7
6
D
4
Q320
R380
220
R340
R341
+B
10
10
+B
-B
D320
DAN202K
D321
DAN202K
+B
+B
+B
-B
+B
5
P18 1-C
P18
TO 1BIT AMP.
TO 1B
PWB
PW
CNWAM2A
CNWA
CNP303
CNP304
1
2
3
4
5
6
1
2
15
14
13
12
11
10
+B
R363
C349
Q313
390
220P
2SA1036KR
R361
100
Q31
2SA103
D
D
2
6
R359
S
S
R371
1M
Q321
2SK389BL
R365
820
Q323
390
2SJ109BL
C35
S
S
0.004
2
6
C347
D
D
0.0047
Q317
2SC2412KR
Q319
C351
2SC2412
10/25
R367
390
Q
-B
2SA
C340
R350
R349
0.01
82K
10K
-B
1
C339
R346
0.1
4.7K
4
R347
3
+
R351
4.7K
1
100K
2
D323
R
DAN202K
5
1
+
1
7
6
8
+B
IC307
C342
0.01
NJM4558M
MOTOR DRIVE
6

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