62
KCH-16
SCHEMATIC DIAGRAM
X53-436 1/2
7
6
5
4
3
2
1
A
B
C
D
E
-t
A0
D0
D2
D4
DM1
DM2
D6
WR
CS0
LCDRST
D7
D5
D3
D1
R64
47k
C42
0.022u
C29
0.1u
C13
1u
R16
0
R9
0
L1
R65
47k
X1
L77-1956-05
R63
1k
C50
15p
C51
15p
R62
470k
C49
3p
C48
470p
R48
4.7k
D8
A
VRM16270MABB
3
GND
1
IN
2
oUT
C26
10u10
L3
C5
100p
C11
100p
C31
100p
C34
100p
MIC1
CN10
R52
47k
C18
1u
C1
2.2u16
R1
12k
C20
0.1u
IC2
1
OUTPUT
2
V+
3
INPUT+
4
INPUT
-
5
V-
C2
100p
R26
10k
R29
10k
L2
C6
2.2u16
CN1
1
/CS
2
/RES
3
A0
4
/WR
5
D0
6
D1
7
D2
8
D3
9
D4
10
D5
11
D6
12
D7
13
VDD
14
VSS
15
VDD
16
V1
17
V2
18
V3
19
V4
20
V5
R36
10k
R27
10k
C24
0.1u
R6
47
C15
2.2u16
C17
1u
C3
100p
C16
1u
1
DIR
2
A1
3
A2
4
GND
5
B2
6
B1
7
G
8
VCC
IC1
LM2682MMX
1
2
3
4
5
6
7
8
1
DIR
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
10
GND
11
12
13
14
15
16
17
18
19
20
C44
1000p
C36
220p
C35
0.1u
C19
1u
R23
10k
R55
100k
R39
0
R20
0
R7
1M
TH1
100k
R24
10k
C14
1u
C7
1000p
R4
100k
R22
10k
R25
10k
C23
0.1u
R28
10k
C4
1u
C8
0.1u
R35
10k
C10
1000p
C38
1u
C46
1u
C39
0.01u
R14
0
R75
820
C30
1u
R83
820
2SC4617(S)
Q2
R30
330
D13
B30-2050-05
C27
470p
D12
B30-2050-05
R33
4.7k
R15
0
D11
B30-2050-05
R34
470k
D3
MA2S111-F
C52
0.1u
D14
B30-2050-05
D10
B30-2215-05
R13
68k
R18
27k
R12
100
R17
33k
C25
10u
C33
470p
C32
470p
C28
10u
1 AoUT
A-IN
A+IN
4 GND
5
B+IN
B-IN
BoUT
8
V+
C12
0.1u
MIC2
1
VIN
2
VSS
3
CE
4
NC
5
VOUT
L4
R49
0
C40
100p
R69
47k
R21
2.7k
R31
1k
R32
1k
R3
10k
R2
10k
R11
12k
R19
2.2k
R8
2.2k
R50
0
R45
0
C21
47p
C22
0.1u
R66
47k
R56
27k
R43
100
R37
1k
R38
10k
R41
47k
R10
10
CN11
R42
100
12A02CH
Q3
R5
560
R152
10k
C9
1000p
CN8
CN9
CN6
CN7
R53
120
C43
0.1u
R58
0
D6
B30-2215-05
R47
330
R54
680
D9
B30-2215-05
R46
120
D7
B30-2215-05
R57
0
Q6
UMG4N
C45
0.1u
R68
47k
C80
10u
C81
1u
R124
0
J2
1 KVL
2 TRD
3 MIC
4 ME
5 PS
6 E
7 SB
8 RESET
R40
0
R134
0
R133
0
CP1 0*2
CP2 0*2
CP3 0*2
CP4 0*2
R135
0
R136
0
VR2 47k
R140
0
R141
100
S24
S70-0485-05
CN5
1
2
CN106
CN107
D1
MINISMDC020F
C93
470p
R151
470k
C84
0.01u
C117
470p
R150
22k
L5
12KEY BACKLIGHT
MAIN
SUB
CONTROL UNIT
(X53-4360-20) (A/4)
CONTROL UNIT
(X53-4360-20) (D/4)
SB
D11-14
SURGE
ABSORPTION
LCD RESET SW
LCD BACKLIGHT SW
VOLTAGE
DOUBLING
INVERTER
LCD (B38-0923-05)
LCD/12KEY
BACKLIGHT SW
Q2,3
E37-0674-15
KRK-11
CONTROL UNIT
(X53-4350-20) (A/2)-J2
CURRENT
PROTECTION
TRD
RESET
HOOK
KVL
LCONT
LCD BACKLIGHT
D6,7,9,10
LMC7101BIM5
LCD
CONTRAST
B8
B7
B6
B5
B4
B3
B2
B1
oE
VCC
C1-
C2+
C2-
VoUT
GND
VIN
C1+
NC
VOLTAGE
REFERENCE
POW
SSM3K15TE(F)
Q4
LCD/12KEY
BACKLIGHT SW
HOOK
2SK1824-A
Q9
DC SW
IC4
TA7805FQ
5V AVR
IC3
NJM2904V-ZB
MIC AMP
Q7
DTC144EE
HOOK SW
Q8
DTC144EE
HOOK SW
Q5
UPA672T-A
IC6
TC7WZ245FK-F
BUS SW
IC5
TC74LCX245FK
BUS SW
2SC2873(Y)F
Q1
9V AVR
D2
02CZ9.1(X,Y)F
VOLTAGE
REFERENCE
IC8
XC6204B332M
3.3V AVR
9V
3.3V