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U
V
1
SWITCH UNIT (X16-1460-XX)
(B38-1080/1081) : KDC-2020/3020/219/4020/2019/V/29MR/217/S
2
3
IC2
J1
TP35
∗
REMOTE
ESD-GND
15
A
SENSOR
TP34
PANEL-
14
SW
4
TP24
R13 47
SW5V
13
+5V
TP33
R12 1K
REMO
12
TP27
R2 470
L-DATAS
11
80
X14-
TP28
IC2
J3
R4 470
L-CLK
10
79
TP29
1/2
R3 470
L-CE
9
78
TP30
R5 1K
A
L-DATAL
8
77
N.C
7
RST
S17
TP32
0V
RST
6
TP26
5
LED+B
5
+B
LAMP+B
4
∗
R21
R22
TP21
D19
220
220
ILL-GND
3
TP31
R10 4.7
PAN 5V
2
+5V
TP22
∗
∗
D8
D7
D-GND
1
∗
C6 0.01
∗
∗
D11
D17
∗
∗
∗
D3
D2
D1
∗
∗
∗
D6
D5
D4
∗
C7 0.01
6
∗
∗
D10
D18
∗
∗
D20
D9
∗
∗
D12
D13
7
W
X
KEY DETECT
SW
TP9 TP8
TP7
TP6
Q1
10K
49
KS6
10K
TP1
50
KI1
KI1
TP2
5V
51
KI2
KI2
0V
TP3
52
KI3
KI3
TP4
53
KI4
KI4
TP5
54
KI5
KI5
0V
55
TEST
56
IC1
+5V
VDD
5.0V
C3 0.047
57
VDD2
3.3V
LCD DRIVER
C2 0.047
58
VDD1
1.7V
0V
59
VSS
R8 56K
C1
60
R16
OSC
510
1000P
61
77
L-DATAL
62
78
L-CE
63
∗
79
L-CLK
R19
64
80
L-DATAS
R14
330
D22
R15
330
5V
0V
∗
R20
R17
510
R18
510
Y
Z
(B38-1079) : KDC-119/S/1020/S
TP16
TP17
S25
S14
S13
TP11
4
3
KI1
S24
S15
S12
32
S32
S32
31
S31
S31
30
TP12
5
2
S30
S30
29
S29
S29
KI2
28
S22
S28
S28
27
S27
S27
26
S26
S26
S23
S16
S11
25
S25
S25
24
S24
S24
TP13
23
FM
6
1
S23
S23
22
KI3
S22
S22
21
S26
S9
1.7V
S21
S21
20
0V
S20
S20
19
5V
S27
S19
S10
S19
S19
0V
18
S18
S18
5V
17
TP14
0V
S17
S17
AM
TI
ATT
KI4
S20
S21
S18
TP15
AUD
CLK
KI5
KDC-2020/3020/219/4020/2019/V/29MR/119/S/1020/S/217/S (2/2)
AA
AB
TP19
S1
∗
IC1 : LC75853NE
D1-13,20
:
∗
TP18
IC2
: RS-171
D17,18
:
S2
∗
D19
:
Q1 : DTA114EUA
D22
: MA3062WA
(X16-1460-XX)
S3
UNIT
C6,
MODEL NAME
A
D1-13,20
D17,18
No.
7
B30-1533-05
B30-1533-05
KDC-2020 (M)
0-20
YES
NO
B30-1633-05
S4
(GREEN)
(GREEN)
B30-1567-05
B30-1567-05
KDC-3020 (M)
0-21
YES
NO
B30-1641-05
(RED)
(RED)
VOL+
KDC-219 (K)
B30-1533-05
B30-1642-05
KDC-4020 (M)
0-11
YES
YES
B30-1633-05
(GREEN)
(BLUE)
KDC-2019 (K)
S5
B30-1533-05
B30-1533-05
KDC-29MR (K)
0-12
YES
NO
B30-1633-05
(GREEN)
(GREEN)
S6
KDC-119 (K)
KDC-119S (K)
B30-1533-05
B30-1533-05
0-13
NO
NO
B30-1633-05
(GREEN)
(GREEN)
KDC-1020 (M)
VOL-
KDC-1020S (M)
KDC-217 (K)
B30-1533-05
B30-1533-05
0-14
NO
NO
B30-1633-05
KDC-217S (K)
(GREEN)
(GREEN)
S7
B30-1567-05
B30-1642-05
KDC-2019V (K)
0-15
YES
YES
B30-1633-05
(RED)
(BLUE)
S8
CAUTION : For continued safety, replace safety criti-
SRC
cal 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.
• DC voltages are as measured with a high imped-
ance voltmeter. Values may vary slightly due to
variations between individual instruments or/and
units.
AC
AD
GND LINE
B LINE
+B
R19,
D19
20
510
510
390
510
510
510
390
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