Cd R/W Module - Philips FW-R7/17 Servise Manual

1 2
POWER SUPPLY CDR
1351
1350
1
A from P4
CDR Transformer
T2A5
2
11V AC
B
C
D
GND_P
E
GND_P
F
1 2
9-10
3 4
+5V REGULATOR
+CDR
6350 6351
1N5392 1N5392
12.9V
6352 6353
1N5392 1N5392
GND_P
GND_P
VOLTAGE DOUBLER
-8.4V REGULATOR
BC327-40
BC337-40
7357
-13.8V -8.4V
-8V
-8.9V
GND_P
+5V SWITCHING PART
CDR-ON
5.3V
3371
GND_P 5V BC557C
GND_P
7359
100K
0V
GND_P GND_P
3 4
5 6
Overcurrent Sensor
Regulator
0.5V
7350
BC557C
BD438
7351
5.2V
+CDR
12.3V
Overvoltage
Protection
1V
1.8V
0.2V 7354
BC547C
GND_P
GND_P GND_P GND_P
7355
0.6V
GND_P GND_P
+12M
3369
560R
10.5V
3373
7360
BC547C
10K
GND_P
GND_P GND_P
5 6
9-10
7 8
3350
3K3
Switching transistor
BD438
7352
5.2V
3351
4.4V
100R
3356
GND_D
100R
+12M
7353
-8V
BC547C
0.9V
GND_D
0.6V
CDR-ON
7356
BC547C
0.6V
GND_P
+12M
GND_P GND_P
+12M
12.2V
11.8V BC327-25
7358
7.9V
6365
BZX79-C3V9
GND_P GND_P
7 8
9 011 C9
012 A9
1350 A2
1351 A1
1353 B2
1354 E9
1355 A1
2350 A7
2351 B8
A
2352 B4
2353 B8
2354 C1
012
2355 C2
+5V
2356 C5
7
2357 D6
5.2V
2358 D2
6
2359 D3
2360 E2
5
2361 F6
4
2362 F6
2363 F8
B
3
12.2V 3350 A7
3351 B7
2
-8.4V
3352 B5
1
3353 B6
DIPMATE
3354 B4
3355 B6
3356 B7
3357 B8
3358 C5
3359 C8
3360 C6
C 3361 D5
3362 D7
3363 D2
3364 D3
011
3365 E6
1
3366 E7
3369 E5
2
3370 E5
3 3371 E3
3372 E6
4
3373 F5
12.2V 3374 F3
D
3375 F4
DIPMATE
3376 C4
6350 A3
FAN CONTROL
6351 A3
6352 B3
6353 B3
6354 B8
6355 B5
6356 B6
6357 C2
6358 C2
6359 C7
E
6360 C2
6361 C2
6362 D3
1354
6363 E3
1
7.9V
+
6364 E4
2 6365 F7
- 7350 A6
7351 A5
EH-B
7352 A7
7353 B7
7354 C6
F 7355 C5
7356 C7
7357 C3
7358 E7
7359 E4
7360 F5
Circuit Diagram PowerSupply CDR (15.02.2000)
9