Schematic Diagram - Main Board (1/4) - Sony STR-K685 Service Manual

4-12. SCHEMATIC DIAGRAM – MAIN BOARD (1/4) –
DCAC
B
BOARD
CN2001
(7pin to 9pin)
(Page 32)
J400
SAT AUDIO IN
TV AUDIO IN
SA-CD/CD AUDIO IN
F
DIGITAL
BOARD
(3/5)
CNS501
(Page 20)
G
DIGITAL
BOARD
(5/5)
CNS502
(Page 22)
MAIN BOARD
20
(3/4)
(Page 27)
STR-K685
• See page 34 for IC Block Diagram.
CNP733
R401
3P 1k
R451 1k
J400
6P R402 1k
R452 1k
R403 1k
R453 1k
C484
0.1
R404 1k
R454 1k
CNP501
15P
CNP502
11P
TP1
C421 C431 C432 C422
4.7 10 4.7
10
50V 50V 50V 50V C424
4.7
50V
0
0
0
0
IC400
0
M61542FP
0
0
0
ANALOG SOUND
PROCESSOR
0
0
IC B/D
-7
0.9
0.9
C402 C452
10 10
50V 50V
C482 0.1
7
C403
0.001
Q471
2SD2144S -TP-UVW
+3.3V REG
3.5
C404
C472
0.001
0.1
25 25
C434
10
50V
0
0
0
C433
10 50V
0
0 C423
4.7
50V
0
0
0
C425
4.7
50V
0
C435
0
10 50V
C446
4.7 50V
0
C436
0 50V
10
C426
0
4.7
50V
R416
1k
0
C590
0.22
R471
680 R472 1k
4.3
R595 5.6k
R591 IC502
3.3k IC NJM4565D
C471
R473
100 C592
2.2k
10V 0 7
0.47
C594
0 0
0.33
0 0
-7 0
R593
47k
C593 R597
0.033
R594 220k
22k
WOOFER AMP
STR-K685
(Page 28)
R596
5.6k
(Page 27)
(Page 26)
CNP732
3P
E
DCAC
BOARD
CN2001
(4pin to 6pin)
(Page 32)
No mark:FM