Schematic Diagram - Digital Board (2/5) - Sony STR-K890 Service Manual

Q Q
4-6. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/5) –
3 7 6 3 1 5 1 5 0
1 2 3
A
DIGITAL BOARD
B
C
D
E
F
T E
L 1 3 9 4 2 2 9 6 5 1 3
CNS508
11P
L CH 1
CL017
VCC 2
G CL016
R CH 3
CL018
GND 4
CL019
SD 5
TUNER
CE 6
DI 7
CL 8
DO/SD/ST 9
CL020
H
RDS INT 10
RDS DATA 11
I
J
K
L
w w w
M
STR-K890
• See page 13 for Waveform. • See page 38 for IC Block Diagram.
4 5 6 7
DIGITAL BOARD
(4/5)
11
(Page 21)
(2/5)
C1913
0.47
50V
16.5
1
I
IC1902
G 3
TA7809S
O
2
9
IC1902
C1914
47
+9V REG
16V
C1120
0.1
C1520
R1253
10k
C1019 C1253
0.1 220p
R1261 R1260
1k 1k
FB1501
0uH
x a o
y
DIGITAL BOARD
. i
8
(1/5)
(Page 18)
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8 9 10 11
DIGITAL BOARD
(5/5)
(Page 22)
R1557 220
R1555 220
R1541 220
RB1500
100
RB1507
100
RB1508
100
RB1503
100
R1150
100
IC1502
RB1504
100
SRAM
IC1502
IS61WV6416BLL-12TLI
0.2 0.2
1
A9 A5 44
Q Q
0.2 0.2
2 A12 A6 43 3 7 6
0.3 0.2
3
A15 A7 42
0.3 3.2
4 A14 OE 41
0.3
5
A13 BHL 40
C1513
3.2
0.1
6 CS BLL 39
0.1 0
7 RB1502
D15 D7 38
100
0.1 0
8 D14 D6 37
0.1 0
9
D13 D5 36
0.1 0
10 35
D12 D4
3.3
C1519
11
VDD VSS 34
0.1
0.1
3.3
12 33
VSS VDD
0.1 0
RB1501
13
D11 D3 32 100
0.1 0
14 31
D10 D2
0.1 0
15
D9 D1 30
C1514
0.1 0
0.1
16 29
D8 D0
3.3
17
WE 28
0.2 0.2
18 27 RB1506
A11 A2
100
0.2 0.2
19
A10 A1 26
0.2 0.2
20 25
A8 A0
0.2 0.2
21 A7 A6 24 R1514
0.2 10k
22 23
GND GND
FB1502 C1515
C1516
470
0uH 0.1
JR1002 10V
C1517
C1518
470
0.1
10V
C1509 C1510
0.1 0.1
C1511
0.1
R1512
R1501
10k
100
u 1 6 3
.
19 19
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2 4
8 9 9
12 13 14 15
12
R1511
100
C1507
0.1
90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67
91 VSS
0.1
92 A8
0.2
93 A7
0.2
94
A6
0.2
95 A5
0.2
3 96 1 5 1 5 0 8 9 2
A4
0.2
97 A3
0
98 D7
0
IC1501
99 D6
2.6
100 VDDI
AUDIO DSP
101 VSS
0
102 D5
0
103 D4
0
D3
104 IC1501
CXD9718BQ
0
105 D2
3.3
106 VDDE
0
107 D1
0
108 D0
0.2
109 A2
0.2
110 A1
111 VSS
0.2
112 A0
3.3
113 PM
114 SDI3
115 SDI4
2.7
116 SYNC
117 TST2
118 GP11
1
119 TST3
2.6
120 VDDI
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
C1521 27p
C1501 R1515 1M
0.1
C1503
X1502 0.1
13.9MHz
C1522
27p
m
c o
DIGITAL BOARD
10
STR-K890
2
8 9 9
16 17 18 19
IC1503
SELECTOR
IC B/D
IC1503
TC7WH157FU(TE12R)
0 3
A VCC
1.6
B ST
3
Y S
1.6
GND Y
C1525
470
10V
66 65 64 63 62 61
C1506
0.1
2.6
VDDI 60
3.3
EXLOCK 59
MOD0 58
3.3
MOD1 57
1.6
BST 56
C1502
4 9 TST1 8 55 2 9 9
0.1
BOOT 54
PAGE0 53
C1505
PAGE1 52
0.1
VSS 51
PAGE2 50
3.3
VMD0 49
VSS 48
3.3
VMDI
47
3.3
VDDE 46
3.2
WE0
45
3.2
CS0 44
3.3
CE0
43
GP15 42
VSS 41
2.6
VDDI 40
C1504
0.1
GP14 39
GP13 38
3.3
GP12 37
3.3
HCS 36
3.3
R1509 100
HDOUT 35
3.2
HCLK 34
3.2
HDIN 33
1.4 R1508 100
DSP_HACN
HACN 32
VSS 31
25 26 27 28 29 30
No mark:FM
(3/5)
(Page 20)