Kenwood KDC-4022 Service Manual page 21

AJ
1
SWITCH UNIT (X16-2020-10/12)
ED1(SEGMENT)
2
3
TP1
J1
ESD-GND 1
FLIP DET 2
TP3
RESET 3
TP2
VOL A 4
to D-GND+ILL-GND 5
X89
VOL B 6
J1
NC 7 TP4
4
2/3 ILL+B 8
DIMMER 9
TP9
B
DI 10
REMO 11
TP10
CL 12
TP12
PANEL 5V 13
CE 14
FLIP DET GND 15
DO 16
TP14
5
6
7
AK
TP13
S23
RESET
4 TP5
6
TP6
REMOTE
CONTROL IC
TP8
TP11
R15 1K
CP3 470x4
IC2
100
0V 1 5
99 GND 1 VO
2
98 GND 2
4
3
VCC
97 GND 3
TP16
TP15
C10
0.01
C11
0.01
CP1
10Kx4
S24
VOL
UP/DOWN
AL
R10
750
CP5
1Kx4
5V
VLCD
0V Q1
AVR
KI1
KI2
D19
KI3
KI4
R13
100
5.0V
R29 1K
KI5
Q2
10K
C5
0.1
10K
R11
4.7
TP17
2.2K
C4
0.1
Q2
C3
0.1
REMOTE
CONTROL
C2
SW
0.1
0V
C1
1000P
R1 30K
R6 47K
R9 3.9K
97
98
99
100
AM
KDC-4022/422/6023
CP4
1Kx4
76
KS6
77
KI1
78
KI2
5V
79
KI3 0V
80
KI4
81
OFF
KI5
5V
82
ON
REMO 0V
83
GREEN
84
RED
85
N.C
86
VDD 5.0V
87
VLCD 7.2V
R5
88
VLCD0 7.2V
89
IC1
VLCD1 5.4V
LCD DRIVER
90
VLCD2 3.6V
91
VLCD3 1.8V
92
VLCD4
93
VSS
94
TEST
95
OSC
96
INH 5.0V
5V
97
DO 0V
98
CE
99
CL
100
DI
X16-2020-10/12 (1/2)
AN
21