Sony STR-K685, Service Manual

Page: 18 / 52

18 18
STR-K685
STR-K685
4-5. SCHEMATIC DIAGRAM – DIGITAL BOARD (1/5) –
• See page 13 for Waveform. • See page 33 for IC Block Diagram.
15
DIGITAL
BOARD
(4/5)
(Page 21)
3
8
DIGITAL
BOARD
(2/5)
(Page 19)
7
DIGITAL
BOARD
(5/5)
(Page 22)
9
DIGITAL BOARD
(3/5)
(Page 20)
No mark:FM
2.6
2.5
1.2 1.2
1.4
3.3
0.1
3.2
0.1
1.6
0
2.5
3.3
2.9
2.9
2.9
3.3
1.6 1.6 1.6 1.6 3.3 1.6 1.6 1.6
3.3
3.3
3.3
0 0
3.3 3.3
0 0
0
VCC
OUT
GND
TORX147L
IC1351
0.1 C1351
100 R1351
123456789
1
0
1
1
1
2
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
IC1301
LC89056W-E
DISEL
DOUT
DINO
DIN1
DIN2
DGND
DVDD
R_SDIN
VIN_AGND
LPF
AVDD
AGND
CKOUT BCK LRCK D
ATA
O
XS
TAT
E
DGND DVDD XMCK XOUT XIN EMPHA AUDIO
CSFLAG
F0/P0/C0_F0/FSB0
F1/P1/C1_F1/FSB1
F2/P2/C2_F2/DLMP
F3/P3/C3_VF/DATA02
DVDD
DGND
AUTO_VREF
BPSYNC
ERROR
DOUT
DI
CE CLK XSEL MODE0 MODEL1 DGND DVDD DOSEL0 DOSEL1 CKSEL0 CKSEL1 XMODE
75
R1355
0.1
C1361
25V
22
C1355
0.1
C1358
6.3V
1000
C1359
100
R1359
0.1
C1301
0.01
C1302
0.1
C1303
0.1
C1305
0
JR1005
5.6k
R1301
4.7k
R1302
16V
47
C1306
10k
R1318
0
JR1009
0
JR1010
R1321 0
10k
R1323
0.1
C1314
0.1
C1315
1M
R1310
100
R1311
100 R1312
100 R1313
10k
R1314
0.1
C1312
100p C1313
12.288MHz
X1301
18p
C1309
18p
C1310
0uH
FB1305
0
R1319
0.1
C1308
680
R1305
22
R1306
100
R1307
100
R1308
100
R1309
100
R1360
0
JR1020
0uH
FB1302
J1301 J1301
100
R1304
0.01
C1304
33k
R1303
0uH
FB1350
0
R1325
0uH
FB1310
470
R1356
47k
R1357
0uH
JR1511
8 7 6 5
4 3 2 1
TC7WU04FU(TE12R)
IC1303
MA111-TX
D1301
MA111-TX
D1302
W1001
DIR_DI
DIR_CKSEL
XMODE
1
3
4
20
21
22
23
24
25
26
27
28
29
85 87
43
80 84 86
38
DIGITAL BOARD (1/5)
IC B/D
IC1303
IC1301
IC1351
OPTICAL IN
DIGITAL AUDIO
I/F RECEIVER
INVERTER
DVD
IN
COAXIAL
DIGITAL
OPTICAL
VIDEO 2/
BD IN
2
1
3
1 2 3 4 5 6 7 8 9 10 11 12 13
A
B
C
D
E
F
G
H
I