Sharp SD-AT50 Service Manual page 31

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Through-hole where the top, bottom and +B patterns are connected.
Through-hole where the top, bottom and ground patterns are connected.
Through-hole where the top, and bottom patterns are connected.
Through-hole where the top, and bottom -B patterns are connected.
1-BIT AMP. PWB-D (BOTTOM VIEW)
LFA03
5
4
3
2
1
LA400
RA402
RA403
RA433
LFA301
RA459
RA451
4
RA484
3
RA427
QA411
2
RA458
1
12
11
RA243
RA245
CA275
RA249
LFA201
12
8
7
6
5
4
3
DA501
2
1
LFA101
LFA100
RA146
7
RA520
RA444
RA519
RA507
RA449
RA506
RA443
RA425
RA426
RA483
RA431
QA410
RA432
PSA500
RA456
RA457
CA432
RA500
3
RA401
RA492
LFA02
RA471
2
RA493
CA431
RA472
1
RA515
RA473
RA470
RA521
RA474
CA404
RA522
PSA504
RA509
RA508
RA452
RA487
QA414
RA439
RA518
RA225
CA221
CA215
CA219
LA205
RA239
RA235
RA227
RA223
CA419
CA420
CA220
CA214
CA218
RA234
RA242
RA226
RA248
RA222
LA204
QA412
RA430
RA485
QA415
RA488
DA503
RA149
CA127
CA126
8
9
Figure 31 WIRING SIDE OF P.W.BOARD (12/12)
11
CA327
RA347
RA345
CA317
RA341
RA337
RA329
RA325
LA307
ICA307
18
16
14
12
10
8
6
4
2
17
15
13
11
9
7
5
3
1
CA313
CA341
CA347
ICA401
CA339
1
1
2
3
2
CA307
3
CA309
4
CA241
5
6
RA317
RA468
CA243
7
RA467
RA315
8
5
6
7
8
CA249
9
10
11
12
13
4
3
2
1
14
15
ICA403
16
17
CA240
18
CA239
CA207
CA209
RA217
1
CA233
2
CA236
3
CA178
4
5
6
CA244
7
CA242
8
9
10
11
CXA100
12
CA135
13
14
15
16
CA139
17
18
CA147
CA149
CA151
CA113
1
3
5
7
9
11
13
15
17
2
4
6
8
10
12
14
16
18
ICA107
QA500
RA129
RA137
RA513
RA141
RA514
LA107
CA117
CA121
CA422
10
– 31 –
RA346
CA326
RA344
CA418
RA342
CA314
RA348
CA316
RA340
RA336
ICA302
CA310
18
16
14
12
10
8
6
4
17
15
13
11
9
7
5
CA344
CA352
CA350
CA348
CA340
CA302
CA304
CA306
CA305
RA316
CA303
CA377
CA413
CA335
CA331
CA336
VRA300
RA304
VRA301
CA300
CA202
RA307
RA208
CA204
RA206
CA205
VRA200
RA209
CA203
RA303
VRA201
CA200
CA232
RA207
RA205
RA202
CA201
CA102
VRA100
CA104
CA105
RA203
RA106
CA177
RA102
CA103
CA133
CA100
VRA101
RA107
RA105
CA132
CA136
CA148
CA150
CA152
CA112
1
3
5
7
9
11
13
15
2
4
6
8
10
12
14
ICA102
LA106
RA124
RA128
RA136
RA140
CA116
CA120
CA421
RA144
CA176
RA148
11
11
SD-AT50
CA376
RA328
RA324
LA306
12
2
3
1
CA312
3
2
1
VRA300
R-CH OUTPUT
OFFSET
ADJUSTMENT
VRA301
L-CH OUTPUT
OFFSET
ADJUSTMENT
RA305
VRA200
R-CH OUTPUT
OFFSET
ADJUSTMENT
RA302
VRA201
CA301
L-CH OUTPUT
OFFSET
ADJUSTMENT
12
11
10
9
8
7
RA200
6
RA201
5
4
3
RA100
2
1
VRA100
R-CH OUTPUT
OFFSET
CA101
ADJUSTMENT
VRA101
L-CH OUTPUT
OFFSET
ADJUSTMENT
17
16
18
12

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