DOLBY OFF DOLBY B/C WYSZUKIWANIE +5V
PRZERW
C488
+5V
R560 R562 R570 G405 N405
R535 2u2/16
R558 R559-8k2 R574 D422 R575
10k C499
10 1k3 AAP120 10k 1
GND
R538 R540 R567 100K 47k 22k 6n8 0V
0V
C393 2
10k 1M 2K7 1,2V 1,2V R+3dB
5V
C491 8 7 6 5 3
R525 10k R539 100u/ 16 C494 R576 L+3dB
0,7V
5V D420 C498
R536 0V
100n
100u/16 27k 4
100K AAP120 R 0dB
0V
68k
R541 US412 C507 5
L 0dB
T427
0V
R526 10k 0V
R523 R532
1M 220n
6
BC238B R-3dB
100k 10k R537
C501
NE542 C496
R573
10k 7
R565 C495 L-3dB
47n C492 R571
C502
C485 27k
1 2 3 4 100u/16 8
100n 1k3 R-10dB
100n 10u/16 5V
10K
R524 2 x BC238B R528 1,2V
T423 T424 9
L-10dB
R566
100k 100k
R561 R563 R569 C497
D421 R572 +5V 10
10K R-20dB
6n8
R564 -8k2
AAP120 10k
R542 11
T430 L-20dB
C486 100K1,2V 47k 22k
D426 R568
4K7 C487
BC238B 0V 12
0V
10u/16 +5V
BAYP94 2K7
T429 2u2/16
WYCISZANIE
R543
BC308B 0,7V
11,3V
(MUTE) 4K7 0V
C506
0V 0V
+12V
220n
1k
G406 N406
KANAŁ PRAWY
R3 100
PHONE
3
3
2 R
ODCZYT Rp1
2
1 L
R546-3k3 R552-3k3
R4 100
1
KANAŁ LEWY T438 T437
R582 R586
9 1 1 9 0,6V
C490
R587 BC238B R532 BC238B
1k
2k2 G3
10k 10k F401 3 7
7 3 1k
F402
680p GSMJ-5A.6
G415
FDP01
FDP01
4 8 8 4
MPX GW2-1
R533 R534 6 12 12 6
11,3V
R547 8k2 L
100k 100k
LINE
R548
R554 R
10k
OUT
8k2
R531
T435
10k C489
R529 BC238B C471
C478 4u7/16
100k
680p
ODTWARZANIE 0,6V 0,6V
4u7/16
C1
/ZAPIS
R549 R555 47n
R581 2k2 R585 1k
R530
(DOLBY P/R)
24k(2%) 24k(2%)
100k
C472
C479
2n2
C480 2n2
2n2
C473 2n2
R556- 560(2%)
R550
BLOK MAGNETOFONU (B4) 560(2%)
C474 330n C481 330n C476 C477
1u/25 1u/25
5532-3400/2
C508 220n C509 220n
R557
G413 N413
1k
C475 330n C482 330n
1 R
C469 4u7/16
2
KANAŁ
3 +12V
LEWY K411
C483
10u/16
4
R551
5 L
27k(2%)
ZAPIS
C484 100u/16
C470 4,7u/16
KANAŁ
PRAWY K412
Rys.20. Schemat układu Dolby Bi C, wzmacniacza słuchawkowego, sterowania wskax
nikiem poziomu i układów wyciszania
8
7
6
5
8
7
6
5
1
2
3
4
1
2
3
4
UL1976
US414
UL1976
US413
SERWIS
ELEKTRONIKI
Baza Porad Serwisowych
R553
10k
6V
6V
6V
1V
6V
6V
6V
6V
6V
6V
6V
6V
6V
6V
1V
6V
6V
6V
6V
0,3V
0,3V
6V
6V 12V
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
1
2
3
4
5
6
7
8
9
1
0
T436 BC238B
T434 BC238B
T433 BC238B
R584 15k
R583 15k
R578 2k2
R577 2k2
R580 2k2
R579 2k2
C504
4n7
C505
4n7
US411
CXA1330S
6V
T435 BC238B
6V
0,3V
0,3V
1,2V
11
12
13
14
15