Read Sharp ER-A770 (serv.man7) Service Manual online
S
F
S
G
S
E
S
C
S
D
A
P
D
P
S
1
/
2
S
1
/
2
V
F
2
V
F
2
V
F
2
N
P
N
P
N
P
N
P
VF
2
S
A
S
B
G
1
1
G
1
0
G
9
G
8
G
7
G
6
G
5
G
4
G
3
G
2
G
1
D
1
9
D
1
8
D
1
7
D
1
6
D
1
5
D
1
4
D
1
3
D
1
2
D
1
1
D
1
0
D
G
5
D
G
6
D
G
7
D
G
8
D
G
9
D
G
1
0
D
G
1
1
D
G
1
2
D
G
1
3
D
G
1
4
D
G
1
5
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
8
D
9
G
5
D
3
1
D
3
2
D
3
3
D
3
4
D
2
9
D
2
8
D
2
7
D
2
6
D
2
5
D
2
4
D
2
3
D
2
2
D
2
1
D
2
0
V
F
1
D
G
0
D
G
1
D
G
2
D
G
3
D
G
4
G
6
G
7
G
8
G
9
G
1
0
G
1
1
D
3
0
V
F
1
V
F
1
2
1
1
3
4
56789
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
3 0
3 1
3 2
3 3
3 4
3 5
3 6
3 7
3 8
3 9
4 0
4 1
4 2
4 3
4 4
4 5
4 6
4 7
4 8
4 9
5 0
5 1
5 2
5 3
5 4
5 5
5 6
5 7
5 8
5 9
6 0
6 1
6 2
6 3
6 4
6 5
6 6
6 7
6 8
6 9
7 0
7 1
7 2
7 3
7 4
7 5
7 6
7 7
7 8
7 9
8 0
8 1
8 2
8 3
8 4
8 5
8 6
8 7
8 8
8 9
9 0
9 1
9 2
DI
SP
LA
Y T
U
B
E
11
2-
LT-
0
4
G
K
N
P
N
P
N
P
N
P
N
C
N
C
N
C
N
C
N
C
VF
1
R2
R3
R4
R5
R6
R7
R8
R9
SA
-2
6V
R1
10
0K
X
9
R25
R26
R27
10
0K
X
7
R28
10
0K
-2
6V
-2
6V
SB
1
SC
2
SD
3
SE
4
SF
5
SG
6
P4
7
P0
8
P1
9
P2
10
P3
11
MODR
12
CFSR
13
KE
X0
14
KE
X1
15
RQ
16
SK
R0
17
ST
0
18
ST
1
19
S T 2
2 0
S T 3
2 1
P O F F
2 2
S T O P
2 3
D D I G
2 4
D C S
2 5
V C C
2 6
S C K
2 7
H T S
2 8
S T H
2 9
S D I S P
3 0
B U Z Z
3 1
D S C K
3 2
SRE
S
33
DS0
34
SHE
N
35
IRQ
36
KR0
37
KR1
38
KR2
39
KR3
40
RESET
41
OS
C2
42
OS
C1
43
GN
D
44
CL1
45
CL2
46
TE
ST
47
G0
48
G1
49
G2
50
G3
51
G 4
5 2
G 5
5 3
G 6
5 4
G 7
5 5
G 8
5 6
G 9
5 7
G 1 0
5 8
G 1 1
5 9
P O 0
6 0
P O 1
6 1
P O 2
6 2
P O 3
6 3
S A
6 4
IC2
CKDC4
R23
R22
R21
R24
10
0K
X
4
R13
R14
R15
R16
R32
2K
X
7
R33
R34
R17
R19
R18
R20
G1
G2
G3
G4
-2
6V
DG
1
1
DG
1
0
DG
9
DG
8
DG
7
DG
6
DG
5
DG
4
DG
3
DG
2
DG
1
DG
0
VCC
R36
R37
R38
R35
2K
X
4
/RE
S
C27
47
0p
F
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
49
49
64
64
63
63
62
62
61
61
VCC2
60
60
59
59
58
58
57
57
56
56
55
55
54
54
53
53
52
52
51
51
50
50
10
10
11
11
12
12
1
3
/R
ES
ET
13
14
/C
S
14
15
SC
K
15
16
SD
ATA
16
17
P1
17
18
P0
18
19
VC
C
1
19
20
XO
U
T
20
21
XIN
21
23
23
24
24
25
25
26
26
27
27
28
28
29
29
31
31
34
34
42
42
41
41
40
40
1
1
22
VS
S
22
30
30
32
VP
32
33
33
35
35
36
36
37
37
38
38
39
39
43
43
44
44
45
45
46
46
47
47
48
48
IC1
M
6
60
04
FP
DG
1
2
DG
1
3
DG
1
4
DG
1
5
D0
D1
D2
D3
D4
D5
D6
VCC
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
X1
4.1
9
M
H
z
R12
1M
DSC
R29
33
DSO
/DCS
/DS
C
K
C19
10
0p
F
C20
0.1
u
F
-2
6V
C21
0.1
u
F
VCC
D34
D33
D32
D31
D30
D29
D28
D27
R39
2
7KG
C15
47
0p
F
/SH
E
N2
RES
C28
47
0p
F
C26
10
uF
1
0
V
/KR
3
/KR
2
/KR
1
/KR
0
DSC
VCC
VCC
VCC
VCC
SB
SC
SD
SE
SF
SG
DP
ID
AP
S1
/2
/SC
K
2
R60
C5
HTS2
ST
H2
R11
3
3
C6
C7
47
0p
F
X3
C8
0.1
u
F
C9
10
uF
/1
6V
C18
47
0p
F
VCC
C24
10
uF
/1
0V
R30
R31
33
X
2
1/2
3. Circuit diagram
8
7
6
5
4
3
2
1
A
B
C
D
1
2
3
4
5
6
7
8
D
C
B
A
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