Kenwood KDC-W4044UA Service Manual page 29

F
-6xxx-xx)
3
1
6
BU3.3V-2
BU3.3V
3
3.3V AVR
1
for IC900
C917
10
K
R908
02
C906
100
23
0.01
R909 1K
24
9
0V
26
DVSS
3.3V 1.8V or 0V
27
DVCC3A
913
3.3V
00
28
DSP REQ 0V
972
1K
29
CD SRAMSTB
3.3V
915
0V
1K
30
CD DRIVEMUTE
916
31
CD PON
32
00
NC
33
NC
34
NC
35
NC
36
NC
37
NC
38
NC
39
NC
40
NC
41
NC
42
NC
43
NC
0V 44
DVSS
.3V 45
DVCC3A
46
NC
47
NC
48
NC
49
NC
50
NC
TP908
BU3.3V-1
USB5V
BU5V
10
PAN5V
PANEL 5V
SW
6 4 2
7 5 3 1
G
C916
10
C905
0.01
X900
3.3V
0V
3.3V
0V
IC900
SUB u-COM
Q905
CD LOE LIM SW
BUFFER
3.3V
0V
3.3V
3.3V
0V
0V
R927
1M
X901
12
12
9
7
5
8
11
10
BU5V
9
13
Q301
TP352
30 28 26 24
CN2
29 27 25 23
H
KDC-W4044UA/W4044UAY/W4044UG/W4044UGY
KDC-W413UA/W413UAY/W4544U/W4644UY
3
1
6
BU3.3V-2
BU3.3V
14 14
C901
0.01
3.3V
0V
100
DVSS
99
NC
98
NC
97 0V
NC
R967
96 0V TP902
ROMCOR DET
22K
95 3.3V
DVCC3A
R946 100
94
BSIF GATE 94
R945 100
93
BSIF DATA 93
R944 100 R943
92
BSIF BCK 92
3.3K
R942 100
91
IPOD SCL SC
R940 100 R941
90
9
IPOD SDA SD
3.3K
R939 100
89
CD CLK 89
R937 100 R938
88
CD S 88
22K
R936 100
87
CD SO 87
R935 100
86
CLK 86
85
DATA S 85
R934 100
84
DATA M 84
83 0V
DVSS
Q905
3.3V
82
0V
R947 22K
82
CD LOE LIM SW
81 3.3V
BU3.3V
AM0
R932 15K
R931 10
80
USB D- DN
R930
R929 10
79
15K
3.3V USB D+ DP
9
0V
R918 1K R928
78
USB VBUS SW 78
22K
R917 1K
77
USB OC 77
76 3.3V
DVCC3A
3.3V
11
0V
0V
BU3.3V-1
BU3.3V
9
11
9
BU5V
7 9
TP365
22 20 18 16 14 12
21 19 17 15 13 11
to CD MECHA.
I
iPod
AUTHENTICATION
COPROCESSOR
BU3.3V-2
3.3V
B
3.3V
0V 3.3V
6
NC6 NC20
7
NC7 NC19
8
IC950
NC8 NC18
9
NC9 NC17
10
NC10 NC16
14
0V
15
BU3.3V
BU5V
14
85
IC251
LEVEL
SHIFT
5V 5V
3.3V
0V 0V
5V
R254
22K
3.3V
0V
66
67
3.3V
0V
12 53
NOT USED
5.0V
E2PROM
IC10
16
1 8
A0 VCC
2 7
A1 WP
5V
3 6
A2 0V SCL
4 5
GND SDA
0V
12
16
5
8
10
BU5V
SW5V
13
9
39
10 8 6 4 2
9 7 5 3 1
X34-623x-xx (2/4)
J
1
NOT USED
TP905
TP906
IC9
5V
20
0V
19
18
17
0V
16
15
D+3.3V
IC
AVR IC
4
N
3.3V
TP53
5
V
14
36 17
5V
0V
IC252
3.3V
0V
R255
100
LEVEL SHIFT
5V 3.3V
17
SW5V
AUD-SCL
TP410
IC8
3
SCL
NC
SDA
5
4
VSS
TP409 5
0V
AUD-SDA
C
5
16
8
13
8
13
16
29