Schematic Diagram - Digital Board (2/5) - Sony STR-K990 Service Manual

STR-K990
4-6. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/5) –
1 2 3 4
DIGITAL BOARD
(4/5)
A (Page 22)
DIGITAL BOARD (2/5)
B
16.5
C
IC1902
TA7809S
9
IC1902
+9V REG
D
E
F
CNS507
9P
L CH 1
CL017
VCC 2
CL016
G
R CH 3
TN1 CL018
ANTENNA GND 4
CL019
AM
SD 5
CE 6
FM
75
DI 7
COAXIAL
CL 8
DO/SD/ST 9
H CL020
R1261 R1260
1k
I
J
K
L
M
STR-K990
• See page 39 for Waveform. • See page 39 for IC Block Diagram.
5 6 7 8
11
C1913
0.47
50V
1
I
G 3
O
2
C1914
47
16V
IC1502
SRAM
IC1502
IS61WV6416BLL-12TLI
0.2
1
A9
0.2
2 A12
0.3
3
A15
0.3
4
A14
0.3
5 A13
3.2
6
CS
0.1
7
D15
0.1
8 D14
0.1
9
D13
0.1
10
D12
C1120
3.3
0.1
11 VDD
C1520 0.1
12
VSS
0.1
13
D11
R1253
0.1
10k
14
D10
0.1
15
D9
C1019 0.1
0.1 16 D8
C1253
3.3
220p
17
WE
0.2
1k
18
A11
0.2
19 A10
0.2
20
A8
0.2
21
A7
0.2
22 GND
FB1501
0uH
FB1502
0uH
DIGITAL BOARD
8
(1/5)
(Page 19)
9 10 11 12
DIGITAL BOARD
(5/5) 12
(Page 23)
R1557 220
R1555 220
R1541 220
RB1500
100
RB1507
100
RB1508
100
RB1503
100
90
R1150
100
91 VSS
0.1
RB1504
92 A8
100
0.2
93 A7
0.2
94 A6
0.2 0.2
44
A5 95 A5
0.2 0.2
A6 43 96
A4
0.2 0.2
A7 42 97 A3
3.2 0
41
OE 98 D7
0
BHL 40 99 D6
C1513
2.6
0.1
BLL 39 100 VDDI
0
38 RB1502
D7 101 VSS
100
0 0
D6 37 102 D5
0 0
D5 36 103 D4
0 0
35 D3
D4 104
0
C1519
VSS 34 105 D2
0.1
3.3 3.3
VDD 33 106 VDDE
0 0
RB1501
32
D3 100 107 D1
0 0
D2 31 108 D0
0 0.2
D1 30 109 A2
C1514
0 0.2
0.1
D0 29 110
A1
28 111 VSS
0.2 0.2
27 RB1506
A2 112 A0
100
0.2 3.3
A1 26 113
PM
0.2
A0 25 114 SDI3
0.2
24
A6 R1514 115 SDI4
10k 2.7
GND 23 116 SYNC
117 TST2
118 GP11
119 TST3
2.6
120 VDDI
C1515
C1516
470
0.1
JR1002 10V
C1517
C1518
470
1
0.1
10V
C1509 C1510
0.1 0.1
C1511
0.1
R1512
R1501
10k
100
20 20
13 14 15
0
1.6
R1511
100
C1507
0.1
89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63
IC1501
AUDIO DSP
IC1501
CXD9718BQ
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
C1521 27p
C1501 R1515 1M
0.1
C1503
X1502 0.1
13.9MHz
C1522
27p
DIGITAL BOARD
10
(3/5)
(Page 21)
16 17 18 19
IC1503
SELECTOR
IC B/D
IC1503
TC7WH157FU(TE12R)
3
A VCC
B ST
3
Y S
1.6
GND Y
C1525
470
10V
62 61
C1506
0.1
2.6
VDDI 60
3.3
EXLOCK 59
MOD0 58
3.3
MOD1 57
1.6
BST 56
C1502
TST1 55
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
29 30
No mark:FM