Kenwood KDC-MP425 Service Manual page 22

U
KDC-MP425/MP6026
KDC-W6027/W6027Y
QQ
3 7 63 1515 0
1
SWITCH UNIT (X16-2490-10)
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
TE
L 13942296513
X89
VOL B 6
J1
NC 7 TP4
4 1/2
ILL+B 8
DIMMER 9
TP9
A
TP8
DI 10
REMO 11
TP10
CL 12
TP12
PANEL 5V 13
CE 14
FLIP DET GND 15
DO 16
TP14
5
6
www
CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer
to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements
shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to
the customer.
7 • DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between
individual instruments or/and units.
22
X16-2490-10 (1/2)
V
TP13
S31
RESET
4 TP5
6
TP6
REMOTE
IC2
CONTROL IC
R11
TP11
1K
C7
CP2 470
2.2
REMOTE
100
CONTROL
99
SW
98
Q2
97
10K
TP16 10K
C10
0.01
C11
0.01
CP1
10K
S1
VOL
UP/DOWN
x ao
. i
W
Q Q
3 6 7
9
76
KS6
77
KI1 KI1
78
KI2 KI2
79
KI3 KI3
80
KI4 KI4
81
KI5 KI5
82
REMO
83
83 GREEN
84
84 RED
85
R8
N.C
4.7
86
VDD
87
VLCD
TP17 R5
D21
2.2K
88
C4
VLCD0
0.1
89
VLCD1
C3
0.1
90
VLCD2
C2
0.1
91
VLCD3
0V 92
VLCD4
93
VSS
94
C1
TEST
1000P 95
OSC
R1 30K
R6 47K 96
INH 5.0V
R7 1K
97
97 DO
98
98 CE
99
99 CL
100
100 DI
u163
y
X
2 9 9 4
8
1 3 1 5 0 5 8 2 9
5V
0V
5V
0V
OFF
5V
ON
0V
ON
5V
OFF
0V
5.0V
8.3V
6.5V
IC1
4.9V
LCD DRIVER
3.3V
1.7V
5V
0V
m
co
.
Y
2 8
9 9
ED1(
9 4 2 8 9 9
50
S50 S50
49
S49 S49
48
S48 S48
47
S47 S47
46
S46 S46
45
S45 S45
44
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