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U
V
SWITCH UNIT (X16-16xx-xx)
Q Q
3 7 6 3 1 5 1 5 0
1
2
3
J1
ILL-GND
1
CP3
470
ESD-GND
2
L-DATAS
3
DI
D-GND
4
CLK
X89-
T E
CE
J1
L
1 3 9 4 2 2 9 6 5 1 3
L-CLK
5
DO
N.C
6
1/2
4
L-CE
7
10.5V
LED+B
8
+10.5V
A
L-DATAL
9
R2
N.C
10
1K
L-RES
11
RES
REMO
12
RESET
S27
RST
13
N.C
14
5
FLIP DET
15
PAN 5V
16
+5V
Q2
IC2 POWER
SUPPLY SW
IC2
1
OUT
GND2
6
0V
2
GND1
VCC
REMOTE
w w w
CONTROLLER
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts
list).
indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating
7
fuse(s). 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.
W
X
80
DI
DI
79
CLK
CL
5V
0V
78
CE
CE
5V
77
DO
DO
0V
76
RES
RES
3.9V
C1 1000P
75
OSC
0V
R8 56K
0V
74
TEST
73
VSS
1.7V
C2 0.047
72
VDD2
3.4V
C3 0.047
71
VDD1
5.0V
70
+5V
VDD
69
KI5
KI5
68
KI4
KI4
67
KI3
KI3
66
KI2
KI2
65
KI1
KI1
Q1
10K
1
10K
KEY SCAN START
KI1
S3
S21
S5
VOL+
3
KI2
S1 S2
S20
S6
VOL-
2
KI3
S17
S18
S9
Q2
S19
10K
EQ
1
10K
KI4
S22
S23
S25
C5
4
5
2.2
4
KI5
S24
3
5.0V
6
x
a o
.
i
Y
Z
25
S25
S25
26
S26
S26
27
S27
S27
28
S28
S28
29
S29
S29
30
S30
S30
31
S31
S31
IC1
32
S32
S32
(BOTTOM VIEW)
33
S33
S33
34
LCD DRIVER
S34
S34
35
S35
S35
36
S36
S36
37
S37
S37
38
S38
S38
39
S39
S39
40
S40
S40
Q
Q
3
7
+10.5V
S4
S7
S8
S11
S12
∗
A
FM
SRC
D20-22
LCD
S10
S13
S14
BACKLIGHT
AM
S15
S16
DISP
ATT
MODEL NAME
S26
KDC-506 (E)
X16-1672-70
KDC-5021 (E)
TI
KDC-5021V (E)
X16-1672-71
KDC-5020R (M)
X16-1630-10
KDC-5021Y (E)
KDC-5021YV (E)
X16-1630-11
u 1 6 3
y
KDC-319 (K)
X16-1630-12
KDC-4019 (K)
KDC-5020 (M)
AA
AB
2
4
8
9
∗
ED1
+10.5V
D7
D10
D8
D13
D12
D11
D9
Q4
D1-13,18,19
6
3
1
5
1
5
0
8
KEY ILLUMINATION
KEY RED ILLUMI SW
IC1
IC2
Q1,2
Q3,4
D1-13
D18,19
D20-22
∗
D5-19
KDC-5021/5021V,506 (E/E,E) (2/2)
KEY ILLUMINATION
C
KDC-5020R,5020Y/YV (M,E/E) (2/2)
KDC-319/4019,5020 (K/K,M) (2/2)
A
B
C
UNIT No.
ED1
D1-13
B38-1091-05
NO
YES
NO
B30-1605-05
B38-1092-05
YES
YES
NO
B30-1605-05
m
B38-1091-05
NO
YES
NO
B30-1605-05
B38-1092-05
YES
YES
NO
B30-1605-05
c o
B38-1091-05
NO
NO
YES
B30-1533-05
.
KDC-5021/5021V,506
AC
AD
2
9
8
9
9
∗
B
Q3
KEY
D4
D1
GREEN
ILLUMI
SW
D5
D2
D6
D3
Q3
Q4
9
2
4
9
8
2
9
9
:
LC75883E
:
RS-171
:
DTA114EUA
:
2SD2114K
∗
:
:
B30-1564-05
:
B30-1571-05
GND LINE
+B
B LINE
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