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U
KDC-BT40U/BT645U
KDC-U546BT
1
ANODE CONNECTION
PIN
1G
2G
NAME
3a
3a
P1
2a
P2
2a
1a
P3
1a
P4
3h
3h
P5
2h
2h
P6
1h
1h
P7
3j
3j
2j
2j
P8
1j
1j
P9
3k
P10
3k
P11
2k
2k
2
P12
1k
1k
P13
col3
col3
P14
col1
col1
3b
3b
P15
2b
2b
P16
1b
P17
1b
P18
3f
3f
P19
2f
2f
P20
1f
1f
P21
3m
3m
2m
2m
P22
1m
1m
P23
S4
P24
S2
P25
S1
S3
P26
3g
3g
3
P27
2g
2g
P28
1g
1g
3c
3c
P29
2c
2c
P30
1c
P31
1c
P32
3e
3e
P33
2e
2e
P34
1e
1e
P35
3r
3r
2r
2r
P36
1r
1r
P37
col4
P38
col4
P39
col2
col2
P40
3p
3p
4
P41
2p
2p
P42
1p
1p
3n
3n
P43
2n
2n
P44
1n
P45
1n
P46
3d
3d
P47
2d
2d
P48
1d
1d
P49
-
-
P50
P51
P52
P53
P54
-
-
P55
-
-
5
P56
4d
4d
-
-
P57
4n
4n
P58
-
P59
-
P60
4p
4p
P61
-
-
P62
4r
4r
P63
-
-
4e
4e
P64
-
-
P65
4c
P66
4c
P67
-
-
P68
4g
4g
P69
-
-
6
P70
4m
4m
-
-
P71
4f
4f
P72
-
P73
-
P74
4b
4b
P75
-
-
P76
4k
4k
P77
-
-
P78
4j
4j
-
-
P79
4h
P80
4h
P81
-
-
P82
4a
4a
P83
-
-
7
28
X16-678x-xx (1/2)
V
SWITCH UNIT (X16-678x-xx)
3G
3a
1G
2a
4a
1a
3h
2h
1h
3j
2j
1j
3k
2k
1k
col3
col1
3b
2b
1b
3f
2f
1f
3m
2m
1m
S6
S5
3g
2g
1g
3c
2c
J2
2
TP72
1c
1
TP71
AUX
3e
3
2e
J4
1e
ILL D GND
1
3r
PAN 5V
2
2r
AUX L
3
1r
AUX GND
4
col4
AUX R
5
col2
LED+B
6
3p
SW5
7
2p
USB GND
8
1p
USB D+
9
X34-
3n
USB 5V
10
J3
USB D-
11
2n
1/2
VFD RST
12
1n
VFD INT
13
3d
VFD CS
14
A
2d
VFD CLK
15
1d
VFD DATA
16
REMO
17
RTRY CCW
18
RTRY CW
19
FL+B
20
MIC N
21
MIC P
22
col5,6
S7
CN DET
23
4d
5d
4n
ESD GND
24
5n
CN1
4p
5p
MIC P
1
BT MIC
MIC N
2
4r
5r
J3
4e
1
5e
TP81
4c
2
5c
USB
4g
3
5g
4
4m
5m
4f
5f
4b
5b
SWITCH UNIT (X16-678x-xx)
4k
5k
MODEL NAME
4j
KDC-BT645U
5j
KDC-U546BT
4h
KDC-BT40U
5h
4a
5a
W
2G
4a
5a
4a
10.3V
5V
0V
1.1V
0V
KEY SCAN
TIMING
ADJUST
Q20
C11
C12
0.1
0.01
0V
R
L
IC2
5V
0V
5.1V
L
5.0V
R
10.3V
17
R22
C21
5.0V
100
1
REMOTE
D+
CONTROL
SENSOR
D-
13
14
15
16
17
18
19
3.9V
MN
MP
MP
MN
5.1V
R82
22
D-
TP82
R81
22
D+
R52,
DESTI-
UNIT
D56-62,84-86
D65
NATION
No.
54-57
K
B30-1781-05
B30-1781-05
0-10
820
(BLUE)
(BLUE)
M1
B30-1779-05
B30-1566-05
E2
2-71
620
(SR)
(RED)
X
3G
3a
2a
1a
3a
10.3V
0V
10.3V
0V
Q21
CP14
47K
Q22
Q23
Q21-23
GRID
REVERSING
DRIVER
TP87
KS1
TP37
S15
TP88
KS2
S4
TP38
DISP
TP89
KS3
S7
TP39
3
TP90
KS4
S12
TP40
6
LED+B
IC2
: PIC95603
D9,10
D51
R53
Q20
: RT1N441U-T111
D52-62,84-86
Q21-23 : RT1P237M-T111
1.5K
D65
ED1
:
3-BT-266INK
D79,82
820
D81
Y
2G
2a
1a
5V
0V
5V
0V
C13
1000P
CP11
100
19
18
S11
RETURN
S6
S5
S8
S9
2
1
S13
S14
5
4
KEY MATRIX
KI1
K
KS1
KS2
D
KS3
KS4
PANEL
KS5
DET
: RK4.7KG(B2)
:
B30-1566-05
:
∗
:
∗
: DA204U
:
HZM6.8ZMWA-E
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