Philips MCD 728, Руководство по обслуживанию

Страница: 20 / 41

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CIRCUIT DIAGRAM - AMP BOARD
FL IN
FR IN
MUTE
+12V
R330
560 Q300
BC817B
R313
2.2K
R303
4.7K
L304
JRH0349
L305
JRH0349
V
SS
A
2
1
V
D
D
A
2
3
V
SS
D
24
ST
A
B
L
18
PR
O
T
13
SU
B
/V
SS
D
19
V
D
D
P2
23
V
SS
P2
20
BOOT2
22
OUT2
21
OUT1
16
BOOT1
15
V
SS
P1
17
V
D
D
P1
14
M
O
D
E
6
O
SC
7
V
SS
A
1
12
V
D
D
A
1
10
IN1+
8
IN1-
9
SGND1
11
SGND2
2
1N2+
5
IN2-
4
IC300
TDA8920BTH
C340
104
C341
104
C343
104
C365
104/100V
C344
104
C352
104
C353
104
V
ss
A
2
V
dd
A
2
V
dd
p2
C370
153
C377
334(M)
C358
104
R320
22
C369
153
C375
334(M)
C345
104
R317
22
SL-OUT
SR-OUT
C323
220P
C335
474
C334
474
R304
5.6K
R305
5.6K
L300
22uH
L303
22uH
C357
104
C356
104
C373
153
C388
224
C367
104/100V
C329
220P
R310
5.6K
R306
5.6K C336
474
C339
474
1
2
3
4
CN300
4p/2.5
C313
102 C314
102 C315
102
C316
102 C317
102
C305
102
C306
102 C307
102
C304
102
C312
102
R326
10
R322
10
C324
220P
C325
220P
C330
220P C331
220P
Vddp2 Vssp2
Vssp2 Vddp2
C383
470uf/35v
C382
470uf/35v
C380
22uf/100V
R324
10
R325
10
+28V
-28V
C387
1000uf/35v
C386
1000uf/35v
V
ss
p2
R311
22K
R312
22K
R316
22
R307
5.6K DZ300
5.1V
C379
100UF/25V
-28V
+28V
+12V
GND
1
2
3
4
5
6
7
8
9
CN301
9P/2.5
C364
10uF
D300
4001
D301
4001
R334
100
C396
220uF
1
2
CN302
2.5/2P
SL-OUT
SR-OUT
R337
100
+12V
spart
FAN L306
JRH0349
L307
JRH0349
V
SS
A
2
1
V
D
D
A
2
3
V
SS
D
24
ST
A
B
L
18
PR
O
T
13
SU
B
/V
SS
D
19
V
D
D
P2
23
V
SS
P2
20
BOOT2
22
OUT2
21
OUT1
16
BOOT1
15
V
SS
P1
17
V
D
D
P1
14
M
O
D
E
6
O
SC
7
V
SS
A
1
12
V
D
D
A
1
10
IN1+
8
IN1-
9
SGND1
11
SGND2
2
1N2+
5
IN2-
4
IC301
TDA8920BTH
C346
104
C347
104
C349
104
C366
104/100V
C350
104
C359
104
C360
104
V
ss
A
3
V
dd
A
3
V
dd
p3
C372
153
C378
334(M)
C363
104
R321
22
C371
153
C376
334(M)
C351
104
R319
22
SW-OUT+
SW-OUT-
C326
220P
C337
474
C338
474
R308
5.6K
R309
5.6K
L301
27uH
L302
27uH
C362
104
C361
104
C374
153
C389
224
C368
104/100V
1
2
CN303
2p/2.5
C318
102 C319
102 C320
102
C321
102 C322
102
C309
102
C310
102 C311
102
C308
102
R329
10
R323
10
C327
220P
C328
220P
C332
220P C333
220P
Vddp3 Vssp3
Vssp3 Vddp3
C385
470uf/35v
C384
470uf/35v
C381
22uf/100V
R327
10
R328 10
+28V
-28V
V
ss
p3
R331
47K
R318
22
-28V
+28V
spart
R333
8.2K
R302
10K
C394
104P
R336
3.3K
+V
s
8
O
U
T2
7
IN
2-
6
IN
2+
5
O
U
T1
1
IN
1-
2
IN
1+
3
-V
s
4
IC302
TL072
C392
473M
C390
334M
R338
240K
R332
8.2K
C391
473M
C393
104p
C395
104p
R335
3.3K
-28V
+28V
SW
-O
U
T
C301
104
C303
104
DGND
C398
474
Q1
1
Q1
2
C1
3
R1
4
D1
5
S1
6
VSS
7
S2
8
D2
9
R2
10
C2
11
Q2
12
Q2
13
VDD
14
IC304
HEF4013T
I1
1
O1
2
I2
3
O2
4
I3
5
O3
6
GND
7
O4
8
I4
9
O5
10
I5
11
O6
12
I6
13
Vcc
14
IC303
PC74HCU04D
R346
6.8K
R348
1M
R347
10K
C9
104
C8
100p
C6
101
C4
104
C5
101
C7
33P
XT301
700K
R349
22
CLOCK
C2
100UF/16V
C3
104
DZ5001
5.6V
+28V
PD1
L308
10UH
C1
104
CLOCK
CLOCK
FL IN
FR IN
R345
1K
C355
220uf
C354
220uf
R300
4.7K
R?
4.7K