
96
NX-220
SCHEMATIC DIAGRAM /
原理图
X54-376 (A/3) 1/2
7
6
5
4
3
2
1
A
B
C
D
E
T:5.72V
R:0.12V
R:6.04V
T:0.09V
3.30V
R:7.47V
T:7.25V
D
D
SCK0
/LCDCS
SDI0
S1
S2
COM1
COM2
COM3
COM4
S33
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
LEDG
LEDR
SDO0
S31
S32
COM1
COM2
COM3
COM4
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S33
KLC
33MD
50CD
BLC
SB2
SB2
SB2
D18
D19
R76
R74
Q 8
R75
C90
R73
C79
C85
C83
C84
C P 1 2
1kx4
CP7
1kx4
C P 4
1kx4
C P 1 1
1kx4
CP8
1kx4
C P 1 3
1kx4
CP14
1kx2
I C 8
1
P 1 / S 1
2
P 2 / S 2
3
P 3 / S 3
4
P 4 / S 4
5
S 5
6
S 6
7
S 7
8
S 8
9
S 9
10
S 1 0
11
S 1 1
12
S 1 2
13
S 1 3
14
S 1 4
15
S 1 5
16
S 1 6
17
S17
18
S18
19
S19
20
S20
21
S21
22
S22
23
S23
24
S24
25
S25
26
S26
27
S27
28
S28
29
S29
30
S30
31
S31
32
S32
33
S 3 3
34
S 3 4
35
S 3 5
36
S 3 6
37
S 3 7
38
S 3 8
39
C o M 4 / S 3 9
40
CoM3
41
Co M 2
42
Co M 1
43
K S 1 / S 4 0
44
K S 2 / S 4 1
45
K S 3 / S 4 2
46
K S 4
47
K S 5
48 KS6
49
KI1
50
KI2
51
KI3
52
KI4
53
KI5
54
VDD
55
VLCD
56
VLCD1
57
VLCD2
58
VSS
59
TEST
60
oSC
61
Do
62
CE
63
CL
64
DI
CP9
1kx4
C P 2
1kx4
R67
D 1 6
L3
CP10
100x4
R72
R70
R71
C78
R69
Q 7
R66
D13
D14
D11
D12
D8
D7
D9
D10
Q 6
R63
R64
R62
R61
S 5
S
S 2 0
C
S 1 5
B
S 1 0
A
S 6
1
S 1 6
3
S 1 1
2
S 1 7
6
S 1 2
5
S7
4
S 8
7
S 1 3
8
S 1 8
9
S9
S 1 4
0
S 1 9
#
C P 3
470x4
CP 6
470x4
R1
4.7k
R 7
4 . 7 k
C4
470p
R6
820
R5
10
C1
470p
D1
B30-2278-05
R3
390
Q1
UMG9N
15
3
2
D1 5
C P 5
1kx4
LCD
R83
0
C93
0.01u
C94
0.01u
R65
LCD BACKLIGHT
KEY BACKLIGHT
HN2S03FE
1SS388F
B30-2210-05
2SC5383-T111
2SA1362-F(GR)
2SC5383-T111
B30-2337-05
CP2
RK74HB1J102J
CP3
CP4
RK74HB1J102J
CP5
RK74HB1J102J
CP6
CP7
CP8
RK74HB1J102J
CP9
CP10
RK74HB1J101J
CP11
CP12
CP13
CP14
D10
D11
D13
D14
HN2S03FE
D15
D18
B30-2210-05
D19
B30-2210-05
IC8
LC75857W-E
Q6
2SA1362-F(GR)
Q7
2SC5383-T111
Q8
2SC5383-T111
S5
S70-0519-05 S70-0519-05
S6
S70-0519-05
S8
S7
S70-0519-05 S70-0519-05
S9
S70-0519-05
S10
S11
S70-0519-05
S12
S70-0519-05 S70-0519-05
S13
S14
S15
S16
S70-0519-05
S17
S70-0519-05
S18
S19
L92-0138-05
L3
D7
B30-2337-05
D16
1SS388F
X54-3760-XX
-10
-12
X54-3760-XX
X54-3760-XX
RK74HB1J471J
NO
NO
NO
NO
RK74HB1J471J
NO
RK74HB1J102J RK74HB1J102J
RK74HB1J102J RK74HB1J102J RK74HB1J102J RK74HB1J102J
D8
D9
D12
NO
B30-2337-05
NO
B30-2337-05
NO
B30-2337-05
NO
B30-2337-05
NO
B30-2337-05
NO
B30-2337-05
NO
B30-2337-05
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
S70-0519-05
S70-0519-05
NO
NO
S70-0519-05
S70-0519-05
NO
NO
C
X54-3760-XX
-10
-12
C2
NO
NO
NO
S20
NO
S70-0519-05
R61 R62 R63 R64 R65 R66 R67 R69 R70 R71 R72 R73
3.3k
6.8k
0
10k
470 2.2k
10k 10k 43k
C
X54-3760-XX
-10
-12
C2
R74 R75 R76 C78
2.2k
C79
C83
C84
C85 C90
NO
120
680 0.01u 0.047u 1000p 0.047u 680p 0.01u
RED
DISPLAY UNIT (X54-3760-XX) (A/3)
33M
SB2
LEDG
LEDR
33M
-10
-10
LCD DRIVER
TX/BUSY LED
D1
TX/BUSY
LED
KEY BACKLIGHT
Q 6
BACKLIGHT CONT
Q 7
Q 8
LCD BACKLIGHT
KEY CONT
D 1 5 , 1 6
D7-14
4
3.3k 3.3k 3.3k
LCD
NO
YES
GRN
C
C2
1
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
**
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
-12
-12
C
C2
C
C2
NO
NO
NO
NO
NO
NO
NO
NO
NO