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A
NX-220
1
L CD
*
DISPLAY UNIT (X54-3760-XX) (A/3)
2
SB2
D1
TX/BUSY LED
GRN
RED
R:6.04V
T:0.09V
3
TX/BUSY
LED
S
4
S5
*
1
S6
*
4
S7
*
7
S8
*
5
*
S9
*
CP3
X54-3760-XX
CP2
-10
K3,E
RK74HB1J102J
RK74HB1J471J
6
-11
K2,E2
RK74HB1J102J
RK74HB1J471J
-12
K,E3
NO
X54-3760-XX
D7
D8
B30-2337-05
-10
K3,E
B30-2337-05
NO
-11
K2,E2
NO
-12
K,E3
NO
NO
X54-3760-XX
S5
S6
-10
K3,E
S70-0519-05
S70-0519-05
-11
K2,E2
S70-0519-05
NO
-12
K,E3
NO
NO
7
88
X54-376 (A/3) 1/2
B
SCHEMATIC DIAGRAM
C P 4
1kx4
*
S27
S28
S29
S30
R:0.12V
T:5.72V
C P 5
*
1kx4
S31
S32
S33
R 7
CP2
1kx4
*
COM4
4 . 7 k
COM3
COM2
COM1
D1 5
*
C P3
*
470x4
D 1 5 , 1 6
HN2S03FE
KEY CONT
D1 6
*
1SS388F
A
B
C
S1 0
S1 5
*
S2 0
*
*
2
3
S 1 1
S1 6
*
*
5
6
S1 2
S1 7
*
*
33M
8
9
S 1 3
S1 8
*
*
0
#
S 1 4
*
S1 9
*
D7-14
KEY BACKLIGHT
CP5
CP4
CP6
RK74HB1J102J
RK74HB1J102J
RK74HB1J471J
RK74HB1J102J
RK74HB1J102J
NO
NO
NO
NO
NO
D9
D10
D11
D12
B30-2337-05
B30-2337-05
B30-2337-05
B30-2337-05
NO
NO
NO
NO
NO
NO
NO
NO
S10
S7
S8
S9
S70-0519-05
S70-0519-05 S70-0519-05
S70-0519-05
NO
NO
S70-0519-05
NO
NO
NO
NO
NO
C
LCD
R61 R62 R63 R64 R65 R66 R67 R69 R70 R71 R72 R73
X54-3760-XX
-10
K3,E
YES
3.3k
3.3k 3.3k 3.3k
K2,E2
YES
NO
-11
NO
-12
K,E3
NO
NO
X54-3760-XX
R74 R75 R76 C78
-10
K3,E
120
680 0.01u
2.2k
2.2k
680
-11
K2,E2
120
-12
K,E3
NO
NO
NO
3 3
S 33
3 4
S 34
3 5
S 35
3 6
S 36
3 7
S 37
3 8
S38
LCD DRIVER
39
C oM4/ S39
4 0
C oM3
I C 8
*
4 1
C oM2
42
C oM1
43
KS 1/ S40
4 4
KS 2/ S41
45
KS 3/ S42
4 6
KS 4
4 7
KS 5
48 KS 6
R67
*
D
C P 6
*
Q 6
470x4
KEY BACKLIGHT
3.30V
L3
*
C 8 3
R 83
*
0
D
2SA1362-F(GR)
Q6
*
2SC5383-T111
Q 7
*
*
CP8
CP9
CP10
CP7
RK74HB1J102J
RK74HB1J102J
RK74HB1J102J
RK74HB1J101J
RK74HB1J101J
RK74HB1J102J
RK74HB1J102J
RK74HB1J102J
NO
NO
NO
NO
D13
D14
D15
D16
D18
B30-2337-05
B30-2337-05
HN2S03FE
1SS388F
B30-2210-05
B30-2337-05 B30-2337-05
HN2S03FE
1SS388F
B30-2210-05
NO
NO
NO
NO
S11
S12
S13
S14
S70-0519-05
S70-0519-05
S70-0519-05 S70-0519-05
NO
NO
NO
NO
NO
NO
NO
NO
D
10k
470 2.2k
10k
10k
6.8k
0
NO
6.8k
0
470
2.2k 10k
10k
10k
3.3k
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
C79
C83
C84
C85 C90
0.047u 680p
0.01u
0.047u
1000p
0.01u 0.047u
1000p
0.047u
680p
0.01u
NO
NO
NO
NO
NO
NO
CP 1 1
*
1kx4
S14
S13
S12
S11
16
S 16
15
S 15
CP 1 2
1kx4
*
14
S 1 4
S10
13
S9
S 13
S8
12
S1 2
S7
11
S1 1
CP 1 3
1 0
1kx4
*
S1 0
S6
9
S5
S 9
8
S4
S 8
S3
7
S7
6
CP14
1kx2
*
S 6
S2
5
S 5
S1
4
P 4/ S4
3
P 3/ S3
2
P 2/ S2
1
P 1/ S1
LCD BACKLIGHT
2SC5383-T111
Q 8
*
R 7 6
*
R 69
Q8
Q 7
LCD BACKLIGHT
BACKLIGHT CONT
CP11
CP12
CP13
RK74HB1J102J
RK74HB1J102J
RK74HB1J102J
RK74HB1J102J
RK74HB1J102J
RK74HB1J102J
NO
NO
NO
D19
IC8
Q6
B30-2210-05
LC75857W-E
2SA1362-F(GR)
2SC5383-T111
B30-2210-05
LC75857W-E
2SA1362-F(GR)
2SC5383-T111
NO
NO
NO
NO
S15
S16
S17
S18
S70-0519-05
S70-0519-05
S70-0519-05
S70-0519-05
S70-0519-05
NO
NO
NO
NO
NO
NO
NO
E
43k
43k
NO
SB2
SB2
LEDR
LEDG
R:7.47V
T:7.25V
SB2
1
33M
CP14
L3
RK74HB1J102J
L92-0138-05
RK74HB1J102J
L92-0138-05
NO
NO
Q7
Q8
2SC5383-T111
2SC5383-T111
NO
NO
S19
S20
S70-0519-05
S70-0519-05
S70-0519-05
NO
NO
NO
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