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KCH-14/15
SCHEMATIC DIAGRAM
D22
A
VRM1608270MAB
Q3
DTC144EUA
C30
1000p
R70
33k
S15
S70-0502-05
R18
1k
R36
470k
R21
0
Q15
DTC144EE
C29
100p
C24
100p
S3
S70-0502-05
R12
150
R78
0
S12
S70-0502-05
D25
A
VRM1608270MAB
D18
MINISMDC020
C42
1000p
1
ME
2
MIC
3
E
4
RESET
5
1/2
6
TRD
7
PS
8
IGN
9
SB
10
IRS
11
ES2
C53
10u10
L2
L92-0451-05
R28
0
C44
1000p
L1
R26
10k
CN3
E40-5952-05
1
2
3
4
5
6
7
8
9
C16
100p
S14
S70-0502-05
C36
100p
CN7
R58
47k
C52
1000p
D21
A
VRM1608270MAB
R37
330
R23
470k
R14
47k
C58
0.01u
R34
47k
R19
4.7k
R2
1k
C8
0.01u
CN11
IC1
TA7805F
3
GND
1
IN
2
OUT
S5
S70-0502-05
R47
47k
Q17
DTC114EE
Q16
DTC144EE
R39
680
0.5
S10
S70-0502-05
S7
S70-0502-05
S13
S70-0502-05
C13
0.022u
C41
1000p
C3
100p
R80
2.2k
R32
47k
L3
C31
1000p
R52
47k
R7
47k
R4
0
R10
470k
R69
33k
R24
22
D20
A
VRM1608270MAB
R53
47k
R76
1k
C28
100p
R27
1k
C26
100p
C5
1000p
C11
0.01u
R67
47k
C46
0.1u
C9
100p
C37
100p
D23
MA
YS062
R17
390
CN12
E40-6202-05
1
2
3
4
5
6
7
8
9
10
R29
0
D26
A
VRM1608270MAB
R42
820
0.5
R8
1k
CN15
R59
47k
W1
E37-0703-05
1
2
3
R11
1k
R15
47k
R46
47k
Q11
DTC144EUA
R41
820
0.5
C15
1000p
C57
1000p
R33
47k
C20
15p
C19
3p
C40
1000p
S11
S70-0502-05
C33
100p
R40
680
0.5
R57
47k
C2
100p
S8
S70-0502-05
R68
47k
D16
1SS301
Q20
DTC114EE
R49
47k
R54
47k
D11
A
VRM1608270MAB
C47
1000p
S4
W02-0393-05
C25
100p
R55
47k
R75
22
CN10
C7
0.1u
D19
A
VRM1608270MAB
CN4
E40-5738-05
2
3
1
R48
47k
2SK1824
Q4
C6
1u
R72
150
C43
1000p
Q18
DTC114EE
CN2
E40-5704-05
1
IRS
2
ES2
C45
100p
Q10
DTC144EUA
CN5
E40-5823-05
1
E
2
VCC
3
CE
4
CL
5
DI
6
DO
7
DISP
8
LED
A
9
LEDK
10
NC
D10
02CZ9.1(X,Y)
R9
1k
R25
0
CN16
C10
100p
C50
1000p
Q19
DTC114EE
R5
820 0.5
S6
S70-0502-05
C39
1000p
D24
A
VRM1608270MAB
R51
47k
R66
47k
C35
100p
R50
47k
R71
390
C49
0.1u
C21
15p
C4
1000p
C27
100p
R1
0
C1
100p
C51
0.1u
CN6
C59
100p
C38
1000p
1
SB
2
HK
3
ME
4
MIC
5
E
6
TRD
7
KVL
8
DM
9
BLC
10
PTT
11
NC
12
ES2
C12
1000p
S9
S70-0502-05
R56
47k
R43
47k
C14
470p
S1
S40-1420-05
C34
100p
S2
S70-0502-05
R35
6.8k
C32
1000p
Q14
DTC144EE
CN8
R79
1k
R38
180
Q13
DTC144EUA
R44
47k
CN9
R77
1k
R13
4.7k
R3
1k
Q12
DTC144EUA
X1
L77-1956-05
R16
560
R60
47k
C23
1000p
1
NC
2
NC
3
NC
4
NC
5
NC
6
BYTE
7
CNVSS
8
NC
9
SFT
10
RESET
11
XOUT
12
VSS
13
XIN
14
VCC
15
NMI
16
NC
17
INT1
18
INT0
19
PTT
20
HOOK
21
END
22
KVL
23
DM
24
NC
25
BLC
26
NC
27
RXD2
28
TXD2
29
TXD
30
RXD
31
SCLK
32
B
USY
33
AI2
34
AI1
35
AO
2
36
AO
1
37
NC
38
NC
39
EPM
40
NC
41
NC
42
NC
43
NC
44
NC
45
NC
46
NC
47
NC
48
NC
49
NC
50
NC
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
R82
1k
R83
1k
VCC
9V AVR
(X54-3500-20)(B/2)
PF9
PF5
DC SW
9V AVR
9V AVR
9V AVR
BUSY
KEY
PF3
SB
DC SW
PF2
9V AVR
9V AVR
PF4
PF1
9V AVR
CONTR
OL UNIT
(X53-4120-10)
-W700
ED1
AO1
D11,20-22
SURGE
ABSORPTION
KCH-15 DISPLAY UNIT (X54-3500-20)(A/2)
POW
TX
LED
D24-26
9V AVR
9V AVR
SURGE
ABSORPTION
AO2
AI2
VOLTAGE
REFERENCE
VOLTAGE
PROTECTION
9V AVR
SCN
VCC
AI1
MON
ZUP
D1,2
AVR
ZDN
DC SW
PF8
9V AVR
DC SW
PF6
DC SW
PF7
LEDA
VCC
XIN
INT1
HOOK
INT0
TXD2
HK
END
KVL
BUSYR
HK
BLC
DM
VSS
TXG
1/2
DIM
BUSY
PTT
TX
RESET
XOUT
RXD2
DIM
SFT
MON
ZDN
ZUP
NC
DISP
DM2
DM1
DO
DI
CL
CE
NC
NC
NC
NC
NC
NC
VO
L
A
VSS
NC
VREF
AV
C
C
TEST
1/2
B/F
NC
NC
NC
NC
NC
BUSYR
BUSY
TX
TXG
VCC
NC
VSS
NC
NC
NC
PF9
PF8
PF7
PF6
PF5
PF4
PF3
PF2
PF1
SCN
ZUP
VCC
ZDN
RESET
SFT
1/2
LEDA
AI1
AI2
AO2
AO1
SB
VCC
BUSY
XOUT
RXD2
INT1
VCC
TX
BLC
TXD2
XIN
HOOK
END
KVL
BUSYR
PTT
DM
VSS
INT0
TXG
J1
E56-0410-15
2SC2873(Y)
Q5
9V AVR
IGN
SB
E
MIC
ME
AI1
AI2
AO1
AO2
DTC144EUA
9V AVR
DTC144EUA
9V AVR
Q9
Q8
Q7
DTC114TE
9V AVR
CN1
E40-5953-05
D1
1SS355
D2
1SS355
D6
D
A204U
D5
D
A204U
SURGE
ABSORPTION
D5,6
2SD2114K(W)
Q2
2SD2114K(W)
Q1
END
E
INT1
SURGE
ABSORPTION
D18,19,23
Q6
DTC114TE
9V AVR
D8
B30-2019-05
D9
B30-2019-05
VR1
R31-0607-05
IC3
30302M84Z2GP
CPU
VCC
CNVSS
RESET
SCLK
TXD
B
USY
RXD
EPM
E
NC
KCH-15 DISPLAY UNIT
(X54-3500-20)(A/2)
4.95V
4.95V
4.95V
4.93V
8.70V
0-4.95V
13.48V
0V
4.93V