Sharp XE-A203 Service Manual - Page 22

Key-mtx Circuit

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P97 P96 P95 P94 P93 P92 P91 XE-A203U/XE-A203A CIRCUIT DIAGRAM AND PWB LAYOUT - 20 - 8 7 ■ KEY-MTX CIRCUIT ¡ü 24 D 25 CN1 /S1 39 1 2 /S0 40 3 /S1 4 C /S2 41 5 /S3 6 /S4 42 7 /S5 8 /S6 32 9 /S7 10 /S8 33 11 B /S9 12 34 1.25mm FPC CN 35 6 12 1 26 2 27 3 28 4 29 5 30 6 31 7 21 8 22 9 23 5 13 36 14 37 15 38 16 52 17 53 18 43 19 44 20 45 10 46 11 47 4 3 48 49 50 51 54 55 56 ¡ü 1 234 12 13 14 15 16 57 24 25 26 27 28 58 36 37 38 39 40 48 49 50 51 52 59 2 1 1/1 D C 5 6 7 8 9 10 11 17 18 19 20 21 22 23 29 30 31 32 33 34 35 B 41 42 43 44 45 46 47 53 54 55 56 57 58 59 FOR KEY I/F BOARD A A 1 2 3 4 5 6 7 FOR KEY I/F BOARD CN2 1.25mm FPC CN 8 7 6 5 4 3 2 1

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XE-A203U/XE-A203A
CIRCUIT DIAGRAM AND PWB LAYOUT
– 20 –
13
24
25
37
36
48
49
1
2
29
56
14
17
55
15
18
54
16
19
53
28
20
41
27
21
42
26
22
43
38
23
44
39
11
45
40
10
46
52
9
47
51
8
35
50
7
34
6
33
59
5
32
4
31
58
3
30
57
12
¡ü
FOR KEY I/F BOARD
FOR KEY I/F BOARD
/S1
/S0
/S3
/S4
/S5
/S7
/S8
/S9
/S1
/S6
P92
P97
P96
/S2
P95
P94
P93
P91
18
56
14
55
44
49
6
25
33
43
57
2
42
37
21
20
26
CN1
1.25mm FPC CN
1
2
3
4
5
6
7
8
9
10
11
12
27
11
45
59
8
50
38
9
15
23
22
39
47
58
3
35
34
46
51
52
10
40
28
16
4
17
24
5
12
CN2
1.25mm FPC CN
1
2
3
4
5
6
7
53
¡ü
29
7
1
41
31
13
54
19
36
30
32
48
A
B
C
D
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
D
C
B
A
1/1
■
KEY-MTX CIRCUIT