78
NX-210(G)
SCHEMATIC DIAGRAM
X54-420 1/1
7
6
5
4
3
2
1
A
B
C
D
E
-t
Ko0
Ko2
Ko1
Ki1
ki4
ki3
LCDCNT
Ki0
Ko3
ki2
-10V
33M
C21
47p
C42
47p
D11
1SS388F
C38
47p
C39
47p
C40
47p
C41
47p
C43
47p
C37
47p
R6
470
CN8
2
4
6
5
8
7
10
9
12
11
14
13
16
15
18
17
20
19
22
21
24
23
26
25
28
27
30
29
32
31
34
33
36
35
38
37
40
39
42
41
44
43
46
45
48
47
50
49
R25
0
CN3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
C12
0.1u
C8
1u
C11
0.1u
R19 10k
R21 10k
R16 10k
R15
0
C9
1u
C6
1u
R20 10k
R23 10k
R22 10k
R17 10k
C10
1u
C7
1u
R18 10k
R24
100k
C33
47p
C14
220p
D8
D6
R4
1.5k
D2
D9
B30-2337-05
R3
1.5k
R1
1.2k
D4
D3
B30-2337-05
D5
B30-2337-05
R2
1.2k
D7
B30-2337-05
D10
D1
B30-2337-05
R5
1.5k
C34
47p
C35
47p
C36
47p
C20
47p
C22
47p
D12
1SS388F
R7
470
R8
470
C23
47p
D13
1SS388F
C24
47p
D14
1SS388F
R9
470
C25
47p
R10
470
R11
470
C26
47p
C27
47p
R12
470
R13
470
C28
47p
R14
470
C29
47p
D15
B30-2337-05
C15
0.1u
R26
150
D18
R27
150
D17
B30-2337-05
D16
C44
47p
S1
1
S2
2
S3
3
S4
4
S5
5
S6
6
S7
7
S8
8
S9
9
S10
S11
S12
S13
S14
S15
S16
S17
S18
SW1
SW2
C17
470p
C16
470p
1
C1-
2
C2+
3
C2-
4
VoUT
5
GND
6
VIN
7
C1+
8
NC
IC102
NJM2130F3-ZB
1
+IN
2
V-
3
-IN
4
oUT
5
V+
C136
1000p
C122
100p
C125
2.2u16
C135
1u
C119
0.1u
C123
2.2u16
C137
1000p
R133
47
R112
12k
R113
1M
C138
47p
R134
0
LCD ASSY
LCD CONTRAST
DISPLAY UNIT(X54-4200-10)
1
3
KEYo0
KEYo1
KEYo2
KEYo3
/KEYI0
/KEYI1
/KEYI2
/KEYI3
/KEYI4
ME
INTMIC
5A
VKEY
/LCDRST
A0
D0
D2
D3
D4
D5
D6
LCDCNT
D7
D1
/WR
VLCDLED
33M
/CS
/RES
A0
/WR
D0
D1
D2
D3
D4
D5
D6
D7
VDD
VSS
VDD
V1
V2
V3
V4
V5
R115
100k
TH101
100k
C1
0.1u
6KEY BACKLIGHT
D1-4
12KEY BACKLIGHT
D5-10
IC105
LM2682MMX
C133
2.2u16
VOLTAGE
DOUBLING
INVERTER
LCD BACKLIGHT
D15-18
D11-14
12KEY CONTROL
5.01V
-9.98V
3.31V
-7.11V