Philips MC-D370/22 Service Manual page 41

CIRCUIT DIAGRAM - AMPLIFIER BOARD
CN102B
CON15
C430
104
C420
C457
C431 +12V
100UF
104
R434
R435
C402
100 102M
100 C421
10UF R450 R452
100UF
5.1K 5.1K 3
R453 10K
C458 R447 2
3.3K
R449 102M
C453
C403 C455
5.1K R451 5.1K IC403A
5 391
101M
4558
7
R454 10K
10UF
R448 6
R442 NC R427
C454
3.3K C456 IC403B
391
101M 4558
C459 NC
R443 NC R428 0
C462 47P
R411 10K
C460 NC
IC404A
C404 10UF IC402 4558
C410 10UF
1 R429 4.7K
C449 104 32 1
INa INb C433 333
C429 104 2 31
SR LF1 C437 473
R406
C450 222 3 30 C452
SS LF2 C434 223
C448 104 4 29 151 5.6K
TO-Ha LF3 C436 222
5 28 C435 104 C464 104
C405 10UF TO-La -12V
TO-Hb
6 27
OUTw
TO-Lb
C451 334 7 26
OUTa C463 47P
OUTb
8 25 R405 100K
AGC1 AGC2
+5V R439 NC 9 24 C409 4.7UF
R412 10K
AUX0 CVA C461
R444 220 10 23 R457
C412 4.7UF 151
AUX1 CVB
R440 NC 11 22 5.6K IC404B
C406 4.7UF
PORT0 CVW
12 21 4558
R445 220 C413 4.7UF
PORT1 CTH R430 4.7K
NC 13 20 7
R441 C407 4.7UF
ADR CTL
14 19
R426 0 C411 4.7UF
SDA CSR
R436 100 15 18
C408 4.7UF
SCL Vref
R446 220 16 17
GND V+
C432 R456 C465 104
+12V
NJW1136 104 C422 10
C415 10UF
+12V
100UF
C414 10UF
R404 1K
C478
C439 1uF C440 104
+12V
104
C476 -12V
IC405B
1uF
IC405A 5 4558
C426
3 4558 7
C425 D5V
C479
1 6
1uF 4.7UF
C477 2 R481
Q408
4.7UF R403 1K 200
1uF R455 C945
c e
R401 1K R402
C480 47P
10K
R400 C481 47P
1K
R408
1K
1K
R437
100
8-3
CN706
CON16
Q104 +5V
A733
TU5V TU12V
R138
4.7K
R137
C197
10K
100UF
Q103
C945
-12V
ZD400
R407
+12V
1
4.7K
R431
Q406 7V
8050
4.7K
VCC5
R432
Q407
8050
4.7K
R458 4.7K L
0
IC406 4052
12 R467 4.7k
X0
13 14 R466 4.7k
X X1
R459 15
C416 10UF
X2
11
1K X3
R409 100K
1
R410 100K
2 Y0
3 5
Y1
Y
2
C417 10UF
3 Y2
4
Y3 JK401
16 R468 1K
VDD 4
10 R
A C471
9
101
B 8
7 6
INH
VEE C472
8 R469 1K
101
GND 3
R460
R414 47K
1K
+12V
R462 1K LO
6 2
C423 C466 R464 R472 C473
101
5 100UF 104 ZD401 150 9
4.7K
6V C474
101
C424 C467 RO 1
R461
100UF 104 ZD402 R465
-12V R474 1K
1K Q404 R415 47K
6V 150
C2878
6
R473
C475
4.7K 101
7
C482
R463
Q405
15 5
R475 47K C2878
Q400 1K
Q401
R424 6.8K
C945 Q402
A733
R413
R482
R425
10K
10K
A733
6.8K
C418
10UF
R438
100
C419 10UF
P-MUTE
CN704
Q106 +12V CN801
SPD IFO
A733 7
DGND +5V 1
SPD IFO FB402
6
VGND 2
L-OUT C811 10UF FB403
5
C/V/R 3
R-OUT FB404
4
U/B 4
C800 10UF
R140 3
Y/G 5
4.7K SCART1
2
CVBS 6
SCART2
1
R139 7
10K CON7 8
DGND
9
Q105 CVBS
10
C945
11
12
C/V/R
13
Y/G
14
U/B
15
VGND
16
CON16
+20V
C516
R508 C523
R513
104
560 18K
47uF
Q912
IC501
A733
L503
C524
1UH
104M CN1
4.7uF
C514 C529 1
R505
272 2
1K 4
R515
C508 7 CON2
4.7R/0.25w
471 C510
471
JK500
9
GND
R507
10k 2
11
C511
471 *
R516
D500
R506
4.7R/0.25w
10k
C530
AMUTE D501
TDA7265
272
C509 C525
R504 L504 D502
471 C522 104M
C515
1UH
1K
4.7uF
104
-20V
C517
R509 D503
R514
560 18K D504
47uF
R500 R503 MUTE D505
+12V
1K 1K C521 Q501
R512
IC500 103 C506 C945 D506
100UF
1K L500 10uH
C502
3 - C507
L501 10uH +20V
C518 ZD500
1 100UF
R501
10UF
9V R518
1K
220UF
+ 100k
C505
6
C527 C528
100UF
+ 101 101
R502
C519
7 Q504
1K C503
A733
5 C504
C526
220UF 10uF
- 101
10UF
R517
R510
15k
TP5228 100K
Q500
R511
LINE-MUTE
C512 4.7K
C945
4.7UF
-12V
+12V
MIC-L
MIC-R
8-3
JK400
CN501
1
601 CVBS1 2
601 YG 3
601 PBR 4
5
C468
C470 6
47P
47P
C469 BNC C532 33 C537 33
47P
C534 33 33
C539
C535 33 33
C540
VGND C536 33 33
C541
C533 33 33
C538
+12V
Q911 SN901 R936
C901
C945 PTC 9.1K
104
R933 R937
100K 100K
Q913 R935 +5V
C945 Q914 15K
R931
A733
2.2K
C902
104
R934 15K
-12V
-12V
+20V C919
2200U F/35V
C920 C923
D911
C918
104 104
104
+5V
1 4
1N4148
1N4148
C924
C921 C922
104
1N4148 104 104
S5V
-20V
1N4148
P-MUTE
C997 C996
1N4148 D511 1N4148
C925
104 2200U F/35V
104
1N4148 D512 1N4148
1N4148 D513 1N4148
D507 1N4148
C520 S8V
R522
220UF
10K
R520
10K D508 1N4148
R521
10K
R519 C928
D509 1N4148 PODN
470UF/16V
100K
Q505 R524 D510 1N4148 Q506 R523 R536
C945 47K C513 C945 10K 6.8K
4.7UF
R529
150k
C913
3 IC900 1
D903 1N4001
100UF/50V
7812
C910 104
C903
1000U F
C988 D904 1N4001
2200U F/25v D906
C911 104
IN4001
C908 104
C904 RB907
C989 D901 1N4001
1000U F
1
1000U F/25v
2
3
C909
3 IC901 2 104
4
7912
D902 1N4001 5
6
7
8
9
10
11
12
3 IC902 1 D905 1N5401
13
BA05T PODN
14
C936 104 PCON
15
C926 V5V
16
1000U F D912 1N5401
17
C937 104 CON17
3 IC903 1
BA05T
C927
220UF
Q923
D913 1N4001
882
R907
C938 104
560
D914 1N4001
C930
C939 104
104
C990
ZD901 220uF
9V