Kenwood KDC-M4524 Service Manual page 16

K
KDC-M4524/G/Y/GY
1
2
3
4
ESD-GND
PANEL-SW
SW5V
REMO
to
X89
J1
DI
1/2
CL
B
CE
DO
5
L-INH
RESET
ILL+B
NC
ILL GND
PANEL 5V
D-GND
6
7
16
X16-2052-71/2362-70 (1/2)
L
SWICTH UNIT (X16-2052-71/2362-70)
J1
15 TP35 REMOTE SENSOR IC
14
5.0V
IC2
TP24
R30
47 4 3
13 VCC GND3
2
TP33
R31
GND2
1K
5 1
12 VO GND1
5V
0V
0V
R35
TP27
470
11 100
R34
TP28
470
10 99
R33
TP29 470
9 98
R32
TP30
1K
8 97
R36
TP25
1K
7 96
TP32
S17
RESET
6
TP26
5
4
TP21
3
TP31
2
TP22
1
M
Q1
KEY-SCAN
START SW
76
KS6
77
KI1 KI1
78
5V
KI2 KI2
0V
79
Q1
KI3 KI3
5V
80 0V
KI4 KI4
81
KI5 KI5
0V 82
P1
83
83 P2
5V
84
84 P3 0V
85
P4
5.0V 86
VDD
8.6V 87
VLCD
D25
6.8V
TP36 R17
4.7K 88
C5 VLCD0
0.22 5.1V
89
VLCD1
C4
0.22
3.4V 90
VLCD2
C3
0.22
1.7V 91
VLCD3
0V
92
VLCD4
C2
93
VSS
1000P
5V
94
TEST
R1 2.5V
R3
95
3.9K
OSC
5V
30K 5.0V
96
96 INH 0V
97
97 DO
98
98 CE
99
99 CL
100
100 DI
D30
N
IC1
LCD DRIVER
5V
0V
O
KI1
T
KI2
T
T
KI3
T
50
T
S50 S50
49
KI4
S49 S49
48
T
S48 S48
47
S47 S47
46
T
S46 S46
45
KI5
S45 S45
44
T
S44 S44
43
S43 S43
42
S42 S42
41
S41 S41
40
S40 S40
39
S39 S39
38
S38 S38
37
S37 S37
36
S36 S36
35
S35 S35
34
S34 S34
33
S33 S33
32
S32 S32
31
S31 S31
30
S30 S30
29
S29 S29
28
S28 S28
27
S27 S27
26
S26 S26