Sony STR-K685, Service Manual

Page: 20 / 52

20 20
STR-K685
STR-K685
4-7. SCHEMATIC DIAGRAM – DIGITAL BOARD (3/5) –
• See page 33, 34 for IC Block Diagrams.
F
MAIN
BOARD
(1/4)
CNP501
(Page 25)
9
DIGITAL BOARD
(1/5)
(Page 18)
No mark:FM
3.3
2.6 2.6 2.6 4.9 5.1 3.2 1.7
1.6 1.4 1.7
3.2
3.3
2.6
5.1
2.3
1.6
1.6
3.3
1.3
1.3
1.3
3.3 0 0 5 5.1
2.6 2.6 2.6
5.1
5.1
2.6
2.6
2.6
5.1 7
0.1
C1004
C1005
0.1
1SS367-T3SONY
D1003
1SS367-T3SONY
D1004
0
R1445
0
R1484
50V
10
C1448
50V
10
C1468
50V
10
C1438
50V
10
C1428
50V
10
C1418
50V
10
C1458
1k
R1486
1k
R1446
1k
R1476
1k
R1436
1k
R1426
1k
R1466
2200p
C1487
2200p
C1547
2200p
C1566
2200p
C1569
2200p
C1568
2200p
C1567
0
R1435
0
R1464
0
R1425
I O
G
TA7805S IC1001
10V
470
C1001
0.1
C1401
0.1
C1404
16V 47
C1402
50V
10
C1403
0
R1491
0
R1492 R1493
0 0
R1494
0
R1495
0
R1470
0.1
C1454
50V
10
C1457
0uH
FB1453
0uH
FB1452
0.1
C1450
0.1
C1494
50V
10
C1455
10k
R1474
D1501 D1502 D1503
100k
R1530
100 R1502
100 R1504
100 R1505
100 R1506
100 R1556
220 R1503
0uH FB1503
1 2 3 4 5 6 7 8 9 10 11 12
13
14
15
16
17
18
19
20
21
22
23
24
25 26 27 28 29 30 31 32 33 34 35 36
37
38
39
40
41
42
43
44
45
46
47
48
PCM1602APT
IC1452
ZERO1 ZERO2 ZERO3 ZERO4 ZERO5 ZERO6 NC NC VOUT6 VOUT5 VOUT4 VOUT3
VOUT2
VOUT1
VCOM
VOUT7(1602_NC)
AGND5
VCC5
AGND6
VOUT8(1602_NC)
AGND4
VCC4
AGND3
VCC3
AGND2
VCC2
AGND1
VCC1
NC
ZERO7(1602_NC)
DA
TA4(1602_NC)
ZERO8(1602_NC)
MDO
MDI
MC ML
RST(A_LOW)
SCKI
SCKO
BCK
LRCK
TEST
VDD
DGND
DATA1
DATA2
DATA3
ZEROA
50V
10
C1491
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
15P
CNS501
C OUT
MAIN AGND
SW OUT
L OUT
+7V
R OUT
R IN
GND
L IN
T.R OUT
GND
T.L OUT
C LINK_R
AGND
C LINK_L
20 19 18 17 16 15 14 13 12 11
10 9 8 7 6 5 4 3 2 1
PCM1803DBR
IC1401
LIN RIN
V REF 1 V REF 2 VCC AGND PDWN
BYP
ASS
FSYNC LRCK
BCK
DOUT
DGND
VDD
SCK OSR
FMT0 FMT1
MODE0 MODE1
100
R1407
0.1
C1408
0.1
C1405
470
R1411
470
R1410
50V
10
C1406
50V
10
C1407
0.01
C1415
0.01
C1414
0
R1409
0.01
C1409
CL040
CL041
100
R1469
0.47
C1002
CL042
CL043
0uH
FB1403
0uH
FB1405
100
R1401
CL045
0 JR1008
0.01
C1362
PCM1609_DATA2
PCM1609_DATA1
PCM1609_BCK
SL-CH
C-CH
SW
PCM1609_ML
PCM1609_MDI
PCM1609_MC
PCM1609_MDO
PCM1609_DATA3
ADCC_INT
PCM1609_SCK
PCM1609_LRCK
SR SL
C
L-CH
L
R
R-CH
SR-CH
PCM1803_LRCK
PCM1803_LRCK
PCM1609/1803_RST
PCM1803_BCK
PCM1803_BCK
DOUT
SW
-CH
TUNER_L
TUNER_R
30
31
32
33
34
35
36
37
39
40
41
44
45
46
47
48
49
50
51
53
55
80
84 86
87 85
1501~1503
1SS367-T3SONY
DIGITAL BOARD (3/5)
IC B/D
IC1401
IC1452
IC B/D
AD CONVERTER
AUDIO CODEC
IC1001
+5V REG
3 1
2
10
DIGITAL
BOARD
(2/5)
(Page 19)
13
DIGITAL
BOARD
(5/5)
(Page 22)
0
R1400
0
R1403
0
R1404
0
R1405
0
R1406
0
R1408
0
R1471
0
R1472
0
R1475
0
R1460
0
R1461
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
A
B
C
D
E
F
G
H
I
J
K