Sony STR-K685, Service Manual

Page: 19 / 52

19 19
STR-K685
STR-K685
4-6. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/5) –
• See page 13 for Waveform. • See page 34 for IC Block Diagram.
1
8
DIGITAL BOARD
(1/5)
(Page 18)
TUNER
75
COAXIAL
FM
AM
11
DIGITAL BOARD
(4/5)
(Page 21)
12
DIGITAL BOARD
(5/5)
(Page 22)
10
DIGITAL BOARD
(3/5)
(Page 20)
No mark:FM
1.6
1.6
0
3
3
16.5
9
0.2 0.2
0.2 0.2
0.2 0.3
3.2 0.3
0.3
3.2
0 0.1
0 0.1
0 0.1
0 0.1
3.3
3.3
0 0.1
0 0.1
0 0.1
0 0.1
3.3
0.2 0.2
0.2 0.2
0.2 0.2
0.2 0.2
0.2
0.1
3.3
3.3
2.6
0.2
0.2
0.2
0.2
0.2
0
0
2.6
0
0
0
0
3.3
0
0
0.2
0.2
0.2
3.3
2.7
2.6
3.3
3.3
1.6
3.3
3.3
3.3
3.2
3.2
3.3
1.4
2.6
3.2
3.2
3.3
3.3
3.3
2.6 1.6 2.6 1.6
0
1.7 1.7 3.3 1.6 1.8 1.6 1.6 1.7 1.7 1.7 1.7 1.6 1.6 1.6
3.3 3.3 3.3 3.3 0.2 0.2 0.2 0.2 0.3 0.2 0.2 0.2 0.2 3.3 0.1 0.1 0.1 0.1 2.6
0 0
0.3 0.3
8
7
6
5 4321
TC7WH157FU(TE12R)
IC1503
A
B
Y
GND Y
S
ST
VCC
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
49
50
51
52
53
54
55
56
57
58
59
60
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
CXD9862R
IC1905
VSS XRST EXTIN LRCKI3 VDDI BCKI3 PLOCK VSS MCLK1 VDDI VSS MCLK2 MS SCKOUT LRCKI1 VDDE BCKI1 SDI1 LRCK0 BCK0 VSS KFSI0 SD01 SD02 SD03 SD04 SPDIF LRCKI2 BCKI2 SDI2
VSS
HACN
HDIN
HCLK
HDOUT
HCS
GP12
GP13
GP14
VDDI
VSS
GP15
CE0
CS0
WE0
VDDE
VMDI
VSS
VMD0
PAGE2
VSS
PAGE1
PAGE0
BOOT
TST1
BST
MOD1
MOD0
EXLOCK
VDDI
VSS
A17 A16 A15 A14 A13
GP10
GP9 GP8
VDDI
VSS
D15/GP7 D14/GP6 D13/GP5 D12/GP4
VDDE
D11/GP3 D10/GP2
D9/GP1 D8/GP0
VSS
A9
A12 A11 A10
TD0 TMS
XTRST
TCK
TDI
VSS
A8
A7
A6
A5
A4
A3
D7
D6
VDDI
VSS
D5
D4
D3
D2
VDDE
D1
D0
A2
A1
VSS
A0
PM
SDI3
SDI4
SYNC
TST2
GP11
TST3
VDDI
100
R1501
0
JR1002
10k
R1513
220
R1523
1M R1515
27p C1521
27p
C1522
13.9MHz
X1502
0.1
C1501
0.1
C1502
0.1
C1503
0.1
C1504
0.1
C1505
0.1
C1506
0.1
C1507
0.1
C1508
0.1
C1509
0.1
C1510
0.1
C1511
0.1
C1513
0.1
C1514
0.1
C1516
0.1
C1518
0.1
C1519
0.1 C1520
10V
470
C1525
10V
470
C1515
10V
470
C1517
10k
R1514
100 R1508
100 R1509
100
R1510
100
R1511
10k
R1570
10k
R1571
10k
R1572
10k
R1573
10k
R1574
100
RB1500
100
RB1501
100
RB1502
100
RB1503
100
RB1504
100
RB1506
100
RB1507
100
RB1508
0uH
FB1501
0uH
FB1502
1
44
43
42
41
40
39
38
2
3
4
5
6
7
37
36
35
34
33
8
9
10
11
12
32
31
30
29
28
27
13
14
15
16
17
18
19 26
25
24
23
20
21
22
IS61WV6416BLL-12TLI
IC1502
A9
A12
A15
A14
A13
CS
D15
D14
D13
D12
VDD
VSS
D11
D10
D9
D8
WE
A11
A10
A8
A7
GND GND
A6
A0
A1
A2
D0
D1
D2
D3
VDD
VSS
D4
D5
D6
D7
BLL
BHL
OE
A7
A6
A5
220 R1541
220 R1555
220 R1557
16V
47
C1914
1k
R1260
1k
R1261
100
R1150
10k
R1512
0.1
C1019
10k
R1253
1
2
3
4
5
6
7
8
9
9P
CNS507
L CH
VCC
R CH
GND
NC
CE
DI
CLK
DO/SD/ST
I
O
G
TA7809S
IC1902
0.1
C1120
47k
R1943
220p
C1253
50V
0.47
C1913
JL001
SRAM_D10 SRAM_D11 SRAM_D12 SRAM_D13 SRAM_D14 SRAM_D15 DSP_A13 DSP_A14 DSP_A15 DSP_WEO DSP_CS SRAM_D8 DIR_DSP_GP8 TUNER_LA
T
DIR_ERROR DSP_XRST
DSP_HACN
SRAM_D9
TUNER_R
DSP_PM
PCM1609_LRCK
76 75 74 73 72
71 70 69 68 67 66 63 62 61 60 59 58 56
29 30 31 27 1 4 3 41 36 32 37 33 44 38 34 39
45
43 40 35
79
77 78
DIGITAL BOARD (2/5)
IC B/D
IC1502
IC1905
IC1503
IC1902
SELECTOR
AUDIO DSP
SRAM
+9V REG
1
3
2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
A
B
C
D
E
F
G
H
I
J
K
L
M