Sony bg3r chassis kv-ar25m86 Service Manual
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KV-AR25M86
RM-993
KV-AR25M86
RM-993
(2) B8 Board Schematic Diagram
– 41 –
– 40 –
V1
L1
R1
V2
L2
R2
V3
L3
R3
V4
L4
R4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46 47 48
1
2
3
4
1
2
3
4
5
6
7
8
9
1
0
1
2
3
4
5
6
7
8
9
1
0
1
2
3
4
5
6
7
8
9
1
0
1
2
3
4
5
6
7
8
9
1
0
1
2
3
4
1
2
3
4
5
6
7
8
9V
30
V
5V
SCL
SDA
AS
RF AGC
VIF
9V
AFT OUT
GND
R OUT
L OUT
NC
NC
NC
NC
NC
5V
DET-OUT
PLL-SW
NC
NC
NC
SCL
SDA
NC
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2 -2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
-2
-2
-2
1
2
3
4
5
6
7
8
1
2
3
1
2
3
-2
-2
-2
-2
-2
-2
-2 -2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
1
40
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
-2
-2
1
1
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
I
O
G
I
O
G
1 2 3 4 5 6 7 8 9
10
11 12 13 14 15
S
1
2
3
1
2
3
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
-2
S
S
-2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
C1437
D1414
R1405
D6202
C1400
C1409
L1401 R1440
R6206
C1463
C1306
R1367
C1308
D6201
D1413
JR1404
JR1413
R1422
C3200
C3204
C3205
C6214
C6242
C6243
JR1403
JR1408
R6233
R6234
R6220
C1311
R1502
C1305
C1307
C1312
C1330
C1333
C1395
C1401
C1402
C1403
C1405
C1406
C1407
C1411
C1413
C1414
C1415
C1416
C1417
C1418
C1419
C1421
C1422
C1423
C1425
C1426
C1428
C1429
C1431
C1432
C1433
C1434
C1436
C1439
C1440
C1441
C1442
C1443
C1445
C1446
C1448
C1449
C1457
C1459
C1460
C1461
C1462
C1464
C3201C3203
C3220
C3221
C3222
C3223
C3224
C3225
C3226
C3227
C3228
C3229
C3259
C3260
C3262
C3264
C6200
C6202
C6203
C6205
C6209
C6210
C6211
C6212
C6213
C6217
C6220
C6222
C6223
C6241
C6249
D1401
D1402
D1403
D1404
D1405
D1406
D1407
D1408
D1409
D1410
D1411
D1412
D1415
D1416
D6210
D6211
D6212
IC1401
IC1404
J1401
J1402
JR1409
JR1410
L1313
L1314
L1317
L3202
Q1316
Q1317
Q1318
Q1323
Q1324
Q1365
Q1372
Q1402
Q1403
Q1404
Q1408
Q1409
Q6201
Q6203
Q6204
Q6208
R1301
R1318
R1320
R1343
R1344
R1345 R1346
R1347
R1350
R1359
R1360
R1361
R1362
R1363
R1364
R1365
R1366
R1368
R1369
R1370
R1371
R1397
R1400
R1403
R1404
R1406
R1407
R1408
R1409
R1410
R1411
R1412
R1413
R1414
100:CHIP
R1417
R1421
R1424
R1425
R1426
R1427
R1428
R1429
R1432
R1435
R1436
100:CHIP
R1437
R1439
R1442
R1443
R1444
R1445 100:CHIP
R1448
R1449
R1450
R1451
R1452
R1454
R1455
R1456
R1457
R1458
R1460
R1463
R1464
R1465
R1466
R1467
R1468
R1469
R1470
R1471
R1472
R1473
R1475
R1476
R1478
R1479
R1480
R1481
R1487
R1488
R1489
R1491
R1492
R1496
R1497
R1500
R1501
R1505
R1506
R3219
R3224
R3229
R3231
R3232
R3238
R3239
R3240
R3242
R3262
R3263
R3267
R3268
R3269
R3271
R3273
R3274
R6201
R6202
R6209
R6219
R6245
R6246
R6255
R6259
R6278
JR1419
JR3205
IC1403
C1412
C1420
C6244
C6245
D1418
IC1402
JR1402
L1402
L1404
R1486
R1507
L1315
C1404
C1331
C1408
C3302
C3304
C3305
C3306
C3307
C3308
C3309
C3310
C3311
C3312
C3313
C3314
C3315
C3316
C3317
C3318
C3319
C3320
C3321
C3322
C3323
C3324
C3325
C3326
C3327
C3328
C3329
C3330
C3331
C3332
C3333
C3334
C3335
C3336
C3337
C3338
D3301
D3302
R3301
R3302
R3303
R3304
R3305
R3306
R3307
R3309
R3310
R3311
R3312
R3313
R3314
R3230
R3316
R3317
R3241
CN1300
C3301
R3308
JR1400
R1372
R3405
R3404
R3408
R3409
TU1401
R3318
R3315
C3303
R6203
C1430
C1450
C1451
C1452
C1453
C1454
C1455
C1456
C1458
C3202
C3238
C3239
C3243
C3244
C3245
C3246
C3247
C3248
C3249
C3250
C3251
C3252
C3253
C3254
C3255
C3256
C3257
C3258
C3401
C3402
C3403
C3404
C3405
C6201
C6207
C6208
C6215
C6216
C6218
C6219
C6221
C6225
C6226
C6227
C6228
C6229
C6231
C6232
C6233
C6234
C6235
C6236
C6237
#
#
C6238 #
C6239
C6240
C6251
C6252
C6253
CN6202
D3201
D3203
D6200
D6205
FB6200
FB6201
FB6202
FB6203
IC3401
NJM2283M-TE1
NJM2283M-TE1
JR1401
JR1412
JR1415
JR1416
JR1417
JR1418
JR3401
JR3402
JR3403
L1403
L1406
L1407
L6202
PS6200
PS6201
Q1401
Q1410
Q3201
Q3202 2SC2712-YG
Q3203
Q3204 2SK246-GR
Q6200
Q6202
MUTING
MUTING
Q6206
MUTING
Q6207# VOL
Q6214
R1401
R1402
R1419
R1420
R1474 0 :CHIP
R1494
R1495
R3200
R3201
R3202
R3203
R3204
R3205
R3206
R3207
R3220
R3221
R3222
R3223
R3233
R3234
R3235
R3236
R3237
R3245
R3246
R3251
R3252
R3253
R3254
R3255
R3256
R3257
R3258
R3259
R3275
R3276
R3401
R3402
R3403
R3407 100 :CHIP
R6200
R6205
R6207
R6235
R6236
R6237
R6239
R6240
R6241
R6242
R6243
R6244
R6248
R6249
R6250
R6251
R6252
R6253
R6254
R6256
R6257
R6258
R6260
R6262
R6263
R6266
R6268
R1416
R1415
JR1420
JR1421
JR1422
JR1423
C1310
CN1415
CN1416
CN6205
L1
40
0
L1
4
05
R1
43
4
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
0.1
25V
F:CHIP
1
16V
F:CHIP
47
16V
10
0.1
25V
F:CHIP
82p
CH:CHIP
330
16V
47
25V
47
25V
47
25V
100p
CH:CHIP
100
16V
0.1
25V
B:CHIP
470
16V
1
16V
F:CHIP
47
25V
1
16V
F:CHIP
220
10V
0.01
F:CHIP
100p
CH:CHIP
1
16V
F:CHIP
1
16V
F:CHIP
1
16V
F:CHIP
1
16V
F:CHIP
1
16V
F:CHIP
100
25V
33
25V
0.1
25V
F:CHIP
100
16V
47
16V
470p
CH:CHIP
0.1
25V
F:CHIP
470p
CH:CHIP
470p
CH:CHIP
470p
CH:CHIP
470p
CH:CHIP
470p
CH:CHIP
470p
CH:CHIP
470p
CH:CHIP
0.47
25V
F:CHIP
100
16V
1
16V
F:CHIP
470p
CH:CHIP
470p
CH:CHIP
1
16V
F:CHIP
1
16V
F:CHIP
100
16V
10
0.1
B:CHIP
0.022
B:CHIP
0.022
B:CHIP
0.022
B:CHIP
0.022
B:CHIP
2.2
16V
F:CHIP
0.1
25V
F:CHIP
10
2.2
16V
F:CHIP
10
25V
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10
25V
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4.7
100p
CH:CHIP
47
16V
100p
CH:CHIP
0
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2200
0.01
B:CHIP
C6204 2200
0.1
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C6206 2200
0.1
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330
10V
330
10V
47
25V
10
0.1
25V
B:CHIP
2.2
16V
F:CHIP
2.2
16V
F:CHIP
1
10
0
:CHIP
UDZSTE-179.1B
PROTECT
UDZSTE-179.1B
PROTECT
UDZSTE-179.1B
PROTECT
UDZSTE-179.1B
PROTECT
UDZSTE-179.1B
PROTECT
UDZSTE-179.1B
PROTECT
PROTECT
UDZSTE-179.1B
PROTECT
PROTECT
UDZSTE-179.1B
PROTECT
PROTECT
UDZSTE-179.1B
UDZSTE-179.1B
PROTECT
PROTECT
UDZSTE-179.1B
PROTECT
PROTECT
UDZSTE-179.1B
PROTECT
PROTECT
UDZSTE-179.1B
UDZSTE-179.1B
DA204K
MA111-TX
PROTECT
PROTECT
MA111-TX
PROTECT
PROTECT
CXA1855S
AV SW
AV SW
NJM78M09FA REGULATOR
S TERMINAL
12P
0
:CHIP
0
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:FLR50
2SA1162-G
AMP
AMP
2SC2712-YG
2SC2712-YG
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INVERTER
2SC2712-YG
INVERTER
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2SC2712-YG
INVERTER
INVERTER
2SC2712-YG
2SC271-YG
BUFFER
BUFFER
2SA1162-G
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BUFFER
2SC2712-YG
BUFFER
BUFFER
2SC2712-YG
BUFFER
BUFFER
2SC2712-YG
BUFFER
BUFFER
2SC2712-YG
BUFFER
BUFFER
UN2213
AMP
AMP
UN2213
AMP
AMP
UN2213
AMP
AMP
UN2213
AMP
AMP
470
:CHIP
220
:CHIP
22k
:CHIP
1k
:CHIP
100
:CHIP
470
:CHIP
470
:CHIP
100
:CHIP
33k
:CHIP
100
:CHIP
470
:CHIP
470
:CHIP
1.8k
:CHIP
220
:CHIP
47k
:CHIP
22k
:CHIP
0
:CHIP
1k
:CHIP
100
:CHIP
470
:CHIP
390
:CHIP
680
:CHIP
220k
:CHIP
220
:CHIP
0
:CHIP
33
:CHIP
220
:CHIP
180
:CHIP
220k
:CHIP
220k
:CHIP
47k
:CHIP
47k
:CHIP
220k
:CHIP
100
:CHIP
2.2k
:CHIP
10k
:CHIP
820
:CHIP
100
:CHIP
3.9k
:CHIP
100
:CHIP
47k
:CHIP
470
:CHIP
75
:CHIP
75
:CHIP
47
:CHIP
1k
:CHIP
1k
:CHIP
47k
:CHIP
560
:CHIP
10k
10k
:CHIP
10k
:CHIP
47k
:CHIP
47k
:CHIP
10k :CHIP
470k
:CHIP
10k
:CHIP
10k
:CHIP
220
:CHIP
10k
470k
:CHIP
470k
:CHIP
220
:CHIP
2.2k
:CHIP
68k
:CHIP
220k
:CHIP
220k
:CHIP
75
:CHIP
220
:CHIP
220
:CHIP
47k
:CHIP
47k
:CHIP
1.2k
:CHIP
220k
:CHIP
220k
:CHIP
75
:CHIP
10K
:CHIP
10K
:CHIP
75
:CHIP
100
:CHIP
68
:CHIP
470
:CHIP
470
:CHIP
100
:CHIP
680
:CHIP
75
:CHIP
220
:CHIP
10k
:CHIP
150k
:CHIP
100
:CHIP
10k
:CHIP
10k
:CHIP
10k
:CHIP
10k
:CHIP
22k
:CHIP
22k
:CHIP
150k
:CHIP
68k
:CHIP
1k
:CHIP
1k
:CHIP
2.2k
:CHIP
3.9k
:CHIP
2.2k
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3.9k
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4.7k
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4.7k
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1k
:CHIP
47k
:CHIP
4.7k
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4.7k
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4.7
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4.7
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0
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0
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#
TA7805S
REGULATOR
REGULATOR
0.1
25V
F:CHIP
0.1
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F:CHIP
4700P
B:CHIP
4700P
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PROTECT
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BUFFER
BUFFER
5.6k
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100
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#
10
4.7
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4.7
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F:CHIP
4.7
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4.7
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470
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B:CHIP
0.047
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0.0047B:CHIP
0.22 16VB:CHIP
0.0033B:CHIP
0.033 B:CHIP
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0.0047B:CHIP
0.01
B:CHIP
MA111-TX
MA111-TX
18k
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22k
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18k :CHIP
15k
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15k
:CHIP
22k
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10k :CHIP
100
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100
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10k
:CHIP
10k :CHIP
10k :CHIP
10k :CHIP
100:CHIP
#
#
68k
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CN5901
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470:CHIP
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R6213 #
9V
9V
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.
S
C
L
S
D
A
V
S
D
A
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R
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#
0.1
25V
B:CHIP
25V
B:CHIP
470P
B:CHIP
B:CHIP
470P
B:CHIP
B:CHIP
470P
B:CHIP
B:CHIP
100
16V
16V
47
47
100
16V
16V
100
16V
16V
0.33
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:MPS
0.47
25V
F:CHIP
25V
F:CHIP
0.33
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:MPS
33000P
25V:B
25V:B
1
16V
F:CHIP
16V
F:CHIP
0.47
25V:F
25V:F
47P :CHIP
4.7
100P
2.2
16V
F:CHIP
16V
F:CHIP
1
16 F:CHIP
16 F:CHIP
10
100P
100
16V
16V
2.2
16V
F:CHIP
16V
F:CHIP
47P
4.7
1
16V:F
16V:F
33000P 25V :B
4.7
10V
F:CHIP
10V
F:CHIP
4.7
10V
F:CHIP
10V
F:CHIP
4.7
10V
F:CHIP
10V
F:CHIP
4.7
10V
F:CHIP
10V
F:CHIP
10
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
1SS355TE-17
RECTIFY
RECTIFY
1SS355TE-17
RECTIFY
RECTIFY
#
#
#
#
#
#
PIP SOUND SW
IC6201 #
3D AMP
3D AMP
0
:CHIP
:CHIP
#
0
:CHIP
:CHIP
#
0
:CHIP
:CHIP
0
:CHIP
:CHIP
#
#
#
10UH
10UH
10UH
#
#
#
2SC2712-YG
2SC2712-YG
BUFFER
BUFFER
2SK246-GR
VOL.
VOL.
INDUCTOR
2SC2712-YG
INDICATOR
INDICATOR
VOL.
#
MUTING
MUTING
#
Q6205
#
MUTING
#
MUTING
#
#
AMP
AMP
180
:CHIP
:CHIP
220
:CHIP
:CHIP
100
:CHIP
:CHIP
10K
:CHIP
:CHIP
180
:CHIP
:CHIP
220
:CHIP
:CHIP
1M
:CHIP
:CHIP
1M
:CHIP
:CHIP
100K:CHIP
1M
:CHIP
:CHIP
3.3K
:CHIP
:CHIP
6.8K
:CHIP
:CHIP
390:CHIP
10K
:CHIP
:CHIP
100K
:CHIP
:CHIP
10K
:CHIP
:CHIP
10K
:CHIP
:CHIP
680
:CHIP
:CHIP
6.8K
:CHIP
:CHIP
390
:CHIP
:CHIP
150K:CHIP
470K
:CHIP
:CHIP
680:CHIP
100K
:CHIP
:CHIP
680
:CHIP
:CHIP
150K
:CHIP
:CHIP
470k :CHIP
680
:CHIP
:CHIP
10K
:CHIP
:CHIP
1M
:CHIP
:CHIP
1M
:CHIP100K:CHIP
:CHIP100K:CHIP
1M
:CHIP
:CHIP
3.3K
:CHIP
:CHIP
#
#
#
100
:CHIP
:CHIP
1K
:CHIP
:CHIP
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
68
:CHIP
:CHIP
#
#
68
:CHIP
:CHIP
#
#
#
#
#
10UH
10UH
100 :CHIP
M
U
T
E
9
V
7
V
G
N
D
3
0
V
G
N
D
A
F
T
2
S
C
P
V
T
I
M
G
N
D
1
1
V
S
D
A
S
C
L
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
5
V
G
N
D
S
C
P
G
N
D
V
T
I
M
B
-
Y
R
-
Y
G
N
D
Y
G
N
D
M
Y
G
N
D
M
R
-
Y
M
B
-
Y
VIDEO IN 1
C
Y
S IN
R
R
R
AUDIO
R
L/MONO
AUDIO
L/MONO
AUDIO
VIDEO
L/MONO
AUDIO
L/MONO
OUT
VIDEO IN 1
VIDEO IN 2
VIDEO IN 3
MONITOR
R OUT3
R OUT2
C OUT2
V OUT3
L OUT3
Y OUT2
S1
S2
S3
SCL
SDA
BIAS
GND
MUTE
V1
LV1
Y1
RV1
C1
V2
LV2
RV2
LTV
TV
RTV
C OUT1
VCC
Y OUT1
TRAP 1
V OUT1
L OUT1
R OUT1
C2
V3
LV3
Y3
RV3
C3
Y IN1
C IN1
TRAP 2
L OUT2
ADR
DE-EM
OUT
B/D
NC
FREQ
F/C
IN
MODE
VCC
VREG
VCC
BOOT
C
O
U
T
C
V
/
Y
O
U
T
L
O
U
T
R
O
U
T
R
-
Y
O
U
T
B
-
Y
O
U
T
Y
O
U
T
Y
S
O
U
T
Y
I
N
R
-
Y
I
N
B
-
Y
I
N
T
V
I
N
T
V
R
I
N
T
V
L
I
N
S-
TV
DV
D
L
DV
D
R
V
OU
T 2
GND
-VCC
-VCC
-VCC
3
D
+
V
C
C
3
D
-
V
C
C
3
D
G
N
D
3
D
G
N
D
W OUT
W OUT
W OUT
P
R
O
T
S
U
B
-
V
G
N
D
S
C
L
S
D
A
9
V
PW-GND
PRE-GND
FILTER
FILTER
RIPPLE
L OUT
VCC
R OUT
R
L
S
T
B
Y
-
M
U
T
E
GND
GND
C
V
/
Y
O
U
T
G
N
D
G
N
D
G
N
D
N
C
G
N
D
N
C
A2
B2
A1
A
B
B1
D
V
D
R
D
V
D
L
L IN
L OUT
R OUT
R IN
RSW
SW
GND
VCC
LSW
MODE2
MODE1
R/L ATT
VCC
SCL
SDA
GND
N
C
9
V
G
N
D
V
M
9
V
D
V
D
C
T
R
L
DVD CTRL
E
E1
LSP
RSP
RESET
R
E
S
E
T
G
N
D
G
N
D
C
O
U
T
G
N
D
G
N
D
SPACE
SPACE
IN
SPACE
OUT
IN
OUT
INa
LF1
LF2
LF3
3D1
3D2
3D3
3D4
BBE1a
BBE2a
TONE-Ha
TONE-La
OUTa
AGC
CLB
CVa
CVb
SDA
SCL
GND
INb
TS1
TS2
TS3
CMan
CENTER
SPACE1
SPACE2
BBE1b
BBE2b
TONE-Hb
TONE-Lb
OUTb
CSR
CBH
CBL
CTH
CTL
V+
INa
R
INb
L
Vref
(ADD:82H)
CENTER
CENTER
CENTER
SW
CENTER SW
SPACE SW
PIP
GND
GND
GND
S-L
CTL1
L
R
M-L
S-R
VCC
CTL2
M-R
G
N
D
GND
AV IN/OUT,SURROUND
PROCESSOR,AUDIO AMP,
VM DRIVER
PROCESSOR,AUDIO AMP,
VM DRIVER
C6230#
R1431
100
:CHIP
100
:CHIP
R1503
10K:CHIP
R1504
10K:CHIP
C1410
47 25V
R1446
220K:CHIP
220K:CHIP
R1453
100
:CHIP
100
:CHIP
R1459
100
:CHIP
100
:CHIP
C1435
0.1 25V
F:CHIP
0.1 25V
F:CHIP
R1493
5.6K
:CHIP
R1485
100:CHIP
R1477
820:CHIP
C1447
10
C1444
0.47
25V
F:CHIP
0.47
25V
F:CHIP
R1430
100
:CHIP
100
:CHIP
R1433
100
:CHIP
R1438
100:CHIP
R1499
100:CHIP
100:CHIP
R1498
100:CHIP
R1484
100:CHIP
R1490
100:CHIP
R1483
100:CHIP
R1461
100:CHIP
R1418
100
:CHIP
100
:CHIP
R1441
100
:CHIP
100
:CHIP
R1447
100:CHIP
C
S
R3406
100:CHIP
100:CHIP
5V
5V
5V
5V
30V
30V
30V
9V
9V
9V
9V
9V
9V
9V
9V
9V
9V
9V
9V
9V
9V
CV
Y
AUDIO(R)
AUDIO(L)
R/L/Y/S/C/CV
AUDIO(R)
AUDIO(L)
AUDIO(L)
SAUDIO(R)
S/C/Y/CV
S/C/Y/CV
S/C/Y/CV
AUDIO(L)
AUDIO(R)
B-SSSBG3R-...-B8.AR25M86
Q1405
2SC2712-YG
2SC2712-YG
R1508
100:CHIP
100:CHIP
R1509
470:CHIP
470:CHIP
R1462
100:CHIP
100:CHIP
R1423
100:CHIP
100:CHIP
C1438
470P
B:CHIP
470P
B:CHIP
(
)
B8
!