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BI
BJ
(X25-637X-XX) (A/2)
D+5V
C278
5P
5.1V
R174
C71
3.3
IC17
1200P
5.1V
25
IC16
Q11
IC16
14
MUTE DRIVER
1
13
22
2
12
Q12
1
3
11
4
10
5
9
5
6
8
7
11.3V
Q11,12
9
A+12V
-11.8V
Q7-10
MUTE CONTROLLER
Q34
Q8
Q7
Q33,34
AUDIO MUTE
CONTROLLER
B
Q33
Q10
Q9
R286
C145
R203
R207
47u63
180
180
R211
47
+
150
Q13-16
MUTE
(MIX L/R)
Q13
R205
R209
1K
1K
Q15
10
Q14
R206
R210
1K
1K
C146
R204
R208
R212
Q16
47u63
180
180
150
+
R287
C67
R73
R77
R81
47
47u63
180
180
150
+
Q3-6
MUTE
(FL/FR)
R75
R79
1K
1K
Q3
Q5
9
Q4
R76
R80
1K
1K
C68
R74
R78
R82
Q6
47u63
180
180
150
+
R121
R125
R129
180
180
150
R261
Q17-20
R123
R127
R271
510
1K
1K
1K
MUTE
(SL/SR)
Q17
Q19
Q27
33
R124
R128
R272
Q26,27
R262
1K
1K
1K
510
ATT.
(SL/SR)
R122
Q18
R126
Q20
R130
Q26
180
180
150
R163
R168
R172
180
180
150
R165
R263
R170
R269
Q21-24
1K
510
1K
1K
MUTE
Q21
(C/SW)
Q23
Q28
R167
R171
R270
Q28,29
R264
1K
1K
1K
510
ATT.
(SW)
Q24
R164
Q22
R169
R173
Q29
180
180
150
EV+12V
A+12V
A 12V
BK
BL
DIGITAL
OUT OPTICAL
C73
INVERTER
A1
1
1
5.0V
(COAX. OUT)
GND
2
+B
VCC
1
5
+B
2
4
R90
3
IEC958
220
3
D18
J2
DIGITAL
L6
C72
R87
R89
OUT
COAXIAL
0.1
180
22
OUT PUT DRIVER (COAX OUT)
CN1
A+12V
5
+12V
12V
4
-12V
3
R OUT
H
2
GND
1
L OUT
R197
47
IC30
(2/2)
6
8
7
5
AMP
R198
47
IC30
2
1
(1/2)
3
C194
4
33P
1
MIX L
2
MIX R
3
L
4
R
+5V
5
SL
C214
0.1
VIDEO
6
RS
SIGNAL
7 C
8
SW
J1
R404
15
100
51,52
BM
BN
C
EV+12V
12.0V
C336 4P
R544 1
11.5V
EV+12V
C410 100u16
+
C411 820P
AV SWITCH
IC400
34
R515
1
GND
1
33
100
SCL
2
VCC
R514
32
3
SDA
3
100
31
4
VCC
R503
C402
C414 470u16
30
150
0.1
5
+
29
C415 470u16
R504 100
C403 1u50
6
+
+
C404 22u16
C416
R519
7
28
BIAS
+
8
0.1
150
27
R516
8
150
9
MUTE
26
C417 10u16
10
+
10
11
C418 10u16
25
FS
+
24
R509
C407
100
1u50
12
+
13
PORT 1
23
14
14
C420
10u16
22
15
PORT 2
+
16
21
C421 10u16
16
+
20
19
17
GND
NC
18
NC
+B
R453
1
+B
4.9V
Q301-305
C328
4.4V
6P
VIDEO FILTER
V IDEO
IC300
COMPOSITE
C300
SIGNAL(Y+C)
24
100u10
SYNC O
23
+
1
SYNC IN
22
C324
R417
C301 0.1
2
VCC
MUX
0.1
3K
21
2
R290 100
3
C325
R418
C303
68u16
3K
20
1
R401 100
2
4
13
+
19
5
GND
GND
C304 820P
6
VCC
R291 100
7
18
C306
2
0.1
R407 100
8
17
17
VCC
R292 100
9
16
C308
2
0.1
R410 100
10
19
R293 100
11
15
C310
2
0.1
R413 100
12
14
21
13
BUFFER (C SIGNAL)
C319
VIDEO
10P
4.5V
SWITCH
Q300
IC301
L300
L301
R415
560
10uH
22uH
8
C315
1
GND
0.1
2
7
C316
100P
3
4
NC
C333 22P
C334 22P
6
8.2V
VCC
+B
5
R454 4.7
R455 4.7
NC
46
+5V
+5V
A+12V
A 12V
BO
BP
EV+12V
44
Q400
Q400,401
SWITCHING
Q401
53
INVERTER
R525
(DVD L)
Q402
4.7K
38
R550
36
3.3K
R551
5.6K
30
Q403
Q403
Q405
MUTE
29
R552
DRIVER
3.3K
R553
3.3K
Q407
Q406
26
MUTE
R527
68
25
Q404
Q408
R555
22K
Q405-410
SWITCHING
CONTROLLER
2FUNC
(Q409)
R528
22
4.7K
Q409
21
Q411
R529
22K
1FUNC
Q410
INVERTER
( DVD L )
Q398
20
4.5V
R421
2.2K
R422
R428
Q302
100
100
Q303
C326
R425
0V
68u16
100
Q301
Q304
+
-3.3V
Q305
-4.0V
20
21
C321
100u10
18
+
16
C322
15
100u10
W1
W3
+
W2
C323
100u10
+
+5V AVR
VIDEO
B
IC36
IC302
(VIDEO)
SWITCH
C364
IN
OUT
10u16
C363
9
H
L
8
GND
+
100P
10
7
GND3
R331
C356
6
C361
11
1
0.33
12
100P
8.2V
L
5
13
C365
H
4
+B
VCC
GND2
10u16
14
+
3
C343
C357
C355
2
5P
100u10
1000P
15
A+12V
GND1
C366
+
C362
16
1
10u16
+
100P
L
H
+B
4.9V
BQ
BR
R545
3.3
+B
C400
Q397
5P
INVERTER
(RGB L)
11.5V
CONVERTER
(12V)
Q413
IC401
R531
C423
150
10u16
1
8
15
GND
+
7
L
R408
2
2
1K
H
6
R532
C429
3
VCC
21
4
5
150
0.1
Q399
L
H
BUFFER
(DVD C)
VIDEO SWITCH
IC402
R535
C425
150
10u16
1
8
18
GND
+
7
L
2
2
3
H
6
VCC
4
5
L
H
VIDEO SWITCH
IC403
R537
C427
150
10u16
1
8
16
GND
+
7
L
2
C428
2
Q412
100P
3
H
6
VCC
CONVERTER
4
5
(12V)
L
H
Q412
VIDEO SWITCH
+B
Q318
4.5V
Q317,318
R452 1.2K
-4.9V
0.6V
VIDEO COLOR
R451 1.2K
(cr SIGNAL)
R449 2.2K
W13
Q317
C344
68u16
R447 10K
+
Q316
Q315,316
R446 1.2K
0.6V
VIDEO COLOR
R445 1.2K
(cb SIGNAL)
Q315
R443 2.2K
W12
0.6V
C342
68u16
R441
+
10K
Q314
R440 910
0.6V
R439 910
Q313,3134
R438 910
VIDEO COLOR
R480 910
(Y SIGNAL)
R481 910
R436 2.2K
Q313
0.6V
W11
C341
R434
68u16
10K
+
-5V AVR
IC37
(VIDEO)
R414
3.9
IN
OUT
GND
C339
100u10
+
C358
5P
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