Pre- & Power Amplifier Circuit - Philips FW-C355 Service Manual

PRE- & POWER AMPLIFIER CIRCUIT
0888 E13 1323 E14 2365 E12 2370 F13 2378 E12 2608 D2
0889 G13 2351 D14 2366 F12 2371 C7 2604 C2 2609 A3
1300-A F13 2352 F14 2367 D12 2372 D8 2605 A2 2610 D3
1300-B E13 2361 E7 2368 F13 2373 C10 2606 D2 2611 B6
1322 E14 2362 E7 2369 E12 2377 C14 2607 B2 2612 D6
1 2 3
HPREF
GND_A
+12V
A
B_REF3
2662
7600-A
VOL_LEFT 3632 +6V
3
8
NJM4556AM
2609
10R
2u2 1
+6V
2 22u
+6V
4
GND_A
2607
B
220p
HPREF 3635 3634
+6V
6K8 27K
C
HPREF
GND_A
+12V
B_REF3
2663
VOL_RIGHT 3633 7600-B
+6V
5 8
NJM4556AM
2610
2u2 10R
7
+6V
6
+6V
4
D
GND_A
2608
220p
HPREF 3636 3608
6K8 27K
E +5V6
3623
+12V_A 5601 B_REF3
2u2
10R
3624
MUTE
10K
GND_A
+5V
F
+12V_A
+6V
HPREF
G
GND_A
1 2 3
11-6
2613 G1 2618 E4 3356 E14 3361 E7 3366 F12 3371 E12
2614 G2 2662 A1 3357 E14 3362 F7 3367 D12 3372 E12
2615 E2 2663 D1 3358 F14 3363 E7 3368 G12 3373 E12
2616 E2 2664 A2 3359 E14 3364 E7 3369 D12 3374 E11
2617 F4 3355 D14 3360 F14 3365 D12 3370 F12 3376 C9
4 5 6
3609 3615
1K 1K
3611 3613
7608 BC817-25
BC817-25 7603
1K 1K
GND_PA GND_PA GND_PA
3617 3619
HP_LEFT
33R 47R
GND_A GND_PA
TU
3618 3620
HP_RIGHT
33R 47R
3610 3616
22u 1K 1K
3612 3614
7602 BC817-25
BC817-25 7604
1K 1K
GND_PA GND_PA GND_PA
7606
7607
BC847B
BC857B
+5V
+5V
+5.6V
+4.3V
3627
0.1V 5K6
0.6V
7605
BC847B
0V D
D
4 5 6
3377 B10 3386 C13 3392 C8 3612 D4 3617 B5 3622 G1
3378 B10 3387 D10 3608 E2 3613 B5 3618 C5 3623 E1
3379 D10 3388 D10 3609 A4 3614 D5 3619 B5 3624 F3
3384 B13 3389 C9 3610 D4 3615 A5 3620 C5 3625 F3
3385 C14 3390 C9 3611 B4 3616 D5 3621 F1 3626 E4
7 8 9
+C +H
+17.5V +35.8V
+54.2V
7302
STP16NE06
+16.7V
+16.7V
+16.7V
+53.8V
+16.7V
G
AQ00
2372
4u7
G
7301 +16.7V
AN17830A 1
3361
VCC
6 CH1-IN CH1-O+
0V
82K
TSD PROT
CIRCUIT
CH1-O-
0V 8 CH2-IN
9 MUTE CH2-O+
0V
MUTE
AP
REF
5 STBY CH2-O-
+3.64V
STBY
CIRC
3362
GND
7 3 11
82K
0V 0V
0V
AMP_IC
AP AL AR
pt2 For point 2 pc board only
7 8 9
11-6
3627 E4 3632 A1 5301 D12 6371 B9 6376 E11 7301 E9
3628 E4 3633 D1 5302 G12 6372 B8 6377 E11 7302 C9
3629 F5 3634 B2 5303 E12 6373 C8 6378 F12 7303 C10
3630 A1 3635 B2 5304 F12 6374 C10 6379 E12 7304 C10
3631 C1 3636 E2 5601 E2 6375 C11 6380 D11 7600-A A2
10 11 12
+50V
7303
2373 6375
BC856B
47p
1N4148
+54.2V
7304
BC847B
+13.8V
+7.2V
5301
1u
3365
4R7
G
G G G 3369
4R7
3367
4R7
3371
4R7
2 +7.8V
5303
1u
+7.8V
4
3373
AL
+7.8V 4K7 pt2
12 0888
2378
G
3372
10 +7.8V 220p
4R7
2370
3366
220n
4R7 AR
5304
1u
3370
4R7
3368
4R7
5302
0889
1u
HEATSINK SCREW HOLE
10 11 12
7600-B D3 7606 E4
7602 D4 7607 E5
7603 B5 7608 B4
7604 D5 9508 G14
7605 F4 9510 D14
13 14
A
B
AMP_ON
5V
2377
22u
4.7V
3385
C
150K
G
+3.64V
AMP_IC
9510
D
2351
220u
3355
330R
3357
1300-B
330R
4
1323
3359 E
3
2
330R
1
EH-S
TO HEATSINK SCREW
1322
3356
2
2
1 330R
1
3358
EH-S
1300-A
330R
F
3360
AV00
330R
220u
2352
9508
G
3139 118 55160 ...90280 sh 4 dd wk203
13 14