Read Sharp ER-A450S (serv.man3) Service Manual online
8
7
6
5
4
3
2
1
A
B
C
D
1
2
3
4
5
6
7
8
D
C
B
A
9/12
KEY I/F(MAIN PWB)
KEYBOARD
ST4
D1
3
D1
4
ST4A
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
CN
1
9
KEY
_CN
CL
4
1
CL
3
2
CL
2
3
CL
1
4
KR
10
5
CN
1
8
CL
E
R
K_
C
N
KR
10
ST[0..9]
KR
10
8-4B
/RE
S
0
KR
11
8-4B
8-8B
8-4B
ST0
ST1
ST2
R
324
47K
ST0
ST1
ST2
ST3
CL
1
CL
2
CL
3
CL
4
D2
4
D2
5
D2
6
D2
7
1SS353X4
/RE
S
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
CN
1
7
MOD
E
_SW
_
1
1
P
ST0
ST1
ST2
ST3
ST4
ST5
ST6
ST7
ST8
ST5
D1
5
D1
6
D1
7
D1
8
D1
9
D2
0
D2
1
D2
2
ST5A
ST0A
ST1A
ST2A
ST3A
ST4A
ST5A
ST6A
ST7A
ST8A
D2
3
12
3
SW
1
MR
S
SW
KEY
74
51
50
36
23
9
2
2
8
37
35
33
NC
15
25
24
61
62
58
60
67
68
27
42
56
55
54
39
43
45
47
49
48
34
21
20
7
5
4
3
NC
57
63
59
66
13
14
28
41
40
38
29
44
46
32
19
18
6
NC
NC
64
65
12
26
52
53
31
30
17
16
NC
10
11
NC
K
R
2
K
R
3
K
R
4
K
R
5
K
R
6
K
R
7
K
R
1
0
K
R
0
K
R
1
R
326
47KX9
R
333
R
329
R
331
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
CN
2
0
KEY
_C
N
_9P
R
325
R
327
R
330
R
332
R
328
1SS353X11
D1
2
1SS353
ST6
KR
10
8-5C
8-8C
8-7A
OF
F
ON
KR
0
KR
4
KR
5
KR
6
KR
7
KR
1
KR
2
KR
3
KR
11
ST3
ST4
ST5
ST6
ST7
59
58
57
63
64
65
11
10
9
8
7
6
5
4
3
J
R
15
16
17
18
19
20
21
22
23
24
25
39
38
37
36
35
34
33
32
31
30
29
43
44
45
46
47
48
49
50
51
52
53
KEY BOARD
62
68
14
28
42
56
61
67
13
27
41
55
60
66
12
26
40
54
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