Kenwood KDC-9023R Service Manual page 35

AT
QQ
3 7 63 1515 0
C38
0.1
C39
0.1
C46
0.1
ASTB
BU5V
65
42
TE
69
L 13942296513
70
C40
0.1
SW5V
C37
4.7
K
K
65
C31
0.1
www
.
AU
A3.3V
+2.5V
+3.3V
CP8
100K
3.3V 51
+3.3V VDD34
52
AD6 HAD6
3.3V
53
AD7 HAD7 0V
54
AD8 HAD8
55
AD9 HAD9
0V 56
GND34
57
3.3V
AD10 HAD10
58 0V
AD11 HAD11
59
AD12 HAD12
2.5V 60
+2.5V VDD24
0V 61
62 HAD13
0V 62
63 HAD14
0V 63
64 HAD15
3.3V
64
+3.3V VDD35
65
3.3V
HAST
0V
R45
3.3V 66
10K
HCSB
3.3V 67
HR/WB
3.3V
68
READ HDSTB 0V
0V 69
GND23
70
DIR
71
EXTDIR
3.3V
72
DBBWRDY0
73
DBBWRDY1 3.3V
0V 74
DBBRRDY0
2.5V
75
+2.5V VDD25
C44
1000P
+3.3V
+2.5V
+2.5V
WMA CHIP
SHUMIT
CIRCUIT
IC12
D3.3V
BU5V
IC8
LEVEL
SHIFT
(3.3V-5V)
91
90
89
x ao
y
i +3.3V
AV
8
D2.5V
R47
100K
CP9 CP12
CP11
100K 100K
100K
IC9
WMA DECODER
Q Q
3.3V
3 6 7 1 3
0V
0V
CP10
100K
+3.3V
+2.5V
+2.5V
+3.3V
IC13
DRAM
(DATA
BUFFER)
u163
.
AW
KDC-9023R
/PSW9524/X969
2 9 9 4 2 8
25 2.5V
VDD22 +2.5V
24 0V
P11
23 0V
P10
3.3V
22
MCK48
0V
21
MCK44
C72
20 0V
GND21
0.1
19 3.3V
VDD32 +3.3V
18
C71
MCKO
CP14
3.3V
17 100 0.1
0V BCKO 48
16
LRCKO 50
15 3.3V
VDD31 +3.3V
14 0V
C69
DGND
0.1
13
AGND
A2.5V
2.5V
12
AVDD
11 2.5V
DVDD +2.5V
10
CKI
54
9
VDD21
3.3V R68
8
DO0
46
0V
7
100
DO1
6
DO2
5 0V
GND31
4
DO3
1 5 0 5 3 8 2 9 C66 9 4
DO4
0.1
2
DO5
1 3.3V
VDD31 +3.3V
+3.3V
+2.5V
+2.5V
R65
100
IC10
WMA CLOCK
SEPARATION
BUFFER
3.3V
0V
m
co
+3.3V
X32-5440-00 (2/3)
AX
9 9
A3.3V
D1
R57
4.7K
APC
(AUTO POW
CONTROL
IOP1
Q4
IOP2
3.3V
0V
R50
1K
AD12
AD11
AD10
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
AU3.3V
AD1
AD0
0V
2 8 9 9
ASTB
READ
WRITE
R49 100K
0V
0V
3.3V
0V
R74
0V
3.3V
100K
A3.3V
0V
C36
22u6.3
1.5V
+
C35
0.1 0V
3.3V
A3.3V
C42
4.7
+3.3V
D3.3V
35