Philips DVP3550KMX/78 Service Manual page 33

PAINEL PRINCIPAL - ESQUEMA ELÉTRICO: ÁUDIO I/F
Main Board Circuit Diagram: AUDIO I/F
AL R364 R364 10K 1% 10K 1%
AR R370 R370 10K 1% 10K 1%
R366 R366 30K 1% 30K 1%
6CH Audio AMP for single input
C365 C365 100pF 100pF
R365 R365 5.1K 1% 5.1K 1%
CE363 CE363 10uF16V 10uF16V
2
R368 R368 470 470
1
C362 C362 0.1uF 0.1uF REFA 3
U361A U361A
C364 C364 LM4558 LM4558 R367 R367
R369 R369 470 470
1500pF 1500pF 10K 10K A_MUTE
+12VA
C631 C631 0.1uF 0.1uF
+12VA
Audio Ampifier Circuit.
R372 R372 30K 1% 30K 1%
C367 C367 100pF 100pF
R371 R371 5.1K 1% 5.1K 1% 6
470 470
7 CE364 CE364 10uF16V R374 10uF16V R374
REFA
5
C366 C366 U361B U361B
LM4558 LM4558
R373 R373
1500pF 1500pF
10K 10K A_MUTE R375 R375 470 470
+12VA
Audio Ampifier Circuit.
+12V +12VA
R361 R361 100 100 +12VA R362 R362 36K 36K REFA
CE362 CE362
+ + + +
R363 R363
CE361 CE361
10K 10K
100uF25V 100uF25V 100uF16V 100uF16V
POWER Ciucuit of OP AMP
P441 P441
RCA/AUDIO OUT RCA/AUDIO OUT
1
2
3
COAXIAL
4
LCH
5
RCH
6
C441 C441 01UAUIFTN-401
C442 C442 47pF/NC 47pF/NC
1000pF 1000pF C443 C443
1000pF 1000pF
LCH
Q361 Q361
SPDIF
2N3904 2N3904 R451 R451
Output Interface Circiut for SPDIF Coaxial.
RCH
Q362 Q362
2N3904 2N3904
M5V
Q544 Q544
R547 R547
3.3K 3.3K
AUDIO_MUTE R545 R545 4.7K 4.7K
R546 R546
22K 22K
POP Noise Cancel Circuit For Power On and Power Off.
AR
AL
For 6CH and no optical output
AUDIO_MUTE
SPDIF
AUDIO I/F
C452 0.1uF C452 0.1uF
COAXIAL
100 100
R452 R452
100 100 C451 C451
100pF 100pF
9012 9012 A_MUTE
R548 R548
R550 R550
4.7K 4.7K
4.7K 4.7K
R549 R549 10K 10K
Q545 Q545
9012 9012
CE541 CE541 + +
220uF16V 220uF16V
Q543 Q543
2N3904 2N3904
DVP3550 33
AR
AL
AUDIO_MUTE
SPDIF