Read Sharp ER-A490 (serv.man2) Service Manual online
1
2
3
4
5
6
7
8
D
C
B
A
D
C
B
A
1
2
3
4
5
6
7
8
C6
0
0.
01
u
+5
V
+5
V
+5
V
+5
V
R4
2
10
K
R4
3
10
K
R4
4
10
K
R4
5
10
K
/R
E
S
6-
7A
/K
R
Q
HT
S
/S
C
K
ST
H
/P
OF
C6
1
3
30P
5-
1
C
6-
2
C
6-
2
C
6-
2
C
6-
2
C
C6
2
3
30P
C6
3
3
30P
C6
4
3
30P
C6
5
3
30P
+5
V
RF
1
JF
2
P
CUT
3
F
CUT
4
VF
5
ST
AM
P
6
SL
F
7
SL
R
S
8
SL
M
T
D
9
RE
S
10
TR
G
11
TR
G
12
IN
T
0
13
IN
T
1
14
HT
S
1
15
SC
K
1
16
ST
H
1
17
R
A
SVZ
18
N.
U
19
VC
C
20
VS
S
21
IN
T
M
C
R
22
VR
ESC
23
SL
T
M
G
24
SL
R
S
T
25
AS
26
RD
27
WR
28
PH
AI
29
SD
T
6
31
SD
T
5
32
VS
S
33
SD
T
4
34
SD
T
3
35
SD
T
2
36
SD
T
1
37
D0
38
D1
39
D2
40
D3
41
VS
S
42
D4
43
D5
44
D6
45
D7
46
R
E
SET
48
SS
PR
Q
47
IN
T
2
49
IN
T
3
50
RX
D
I
51
TX
D
I
52
SC
K
1
53
IR
Q0
54
A0
55
A1
56
A2
57
A3
58
A4
59
A5
60
12
0
11
9
11
8
11
7
11
6
11
5
11
4
11
3
11
2
11
1
11
0
10
9
10
8
10
7
10
6
10
5
10
4
10
3
10
2
10
1
10
0
99
98
97
96
95
94
83
82
81
L
CDC
80
A2
2
79
A2
1
78
A2
0
77
A1
9
76
A1
8
75
A1
7
74
A1
6
73
A1
5
72
A1
4
71
A1
3
70
A1
2
69
A1
1
68
A1
0
67
A9
66
A8
65
A7
64
A6
63
VC
C
62
VS
S
61
84
93
92
91
90
89
88
87
86
85
SD
T
7
30
16
0
15
9
15
8
15
7
15
6
15
5
15
4
15
3
15
2
15
1
15
0
14
9
14
8
14
7
14
6
14
5
14
4
14
3
14
2
14
1
14
0
13
9
13
8
13
7
13
6
13
5
13
4
13
3
13
2
13
1
13
0
12
9
12
8
12
7
12
6
12
5
12
4
12
3
12
2
12
1
IC
9
G.
A
(M
P
C
A
6
)
+5
V
/T
W
A
IT
+5
V
R6
5
10
K
C1
0
8
1
00P
3-
6A
AS
K
+5
V
R
A
S
3
4-
7B
6-
3
B
+5
V
+5
V
+5
V
+5
V
+5
V
+5
V
+5
V
+5
V
+5
V
+5
V
R4
8
10
K
R4
9
10
K
R5
0
10
K
R5
1
10
K
R5
2
10
K
R5
3
10K
C6
9
C
AP N
P
/T
P
RCR
Q
7-
7B
VR
ESC
3-
2
C
/A
S
/R
D
/W
R
PH
AI
D[
0
..
7
]
1-
2D
1-
1D
1-
1D
1-
1C
+5
V
+5
V
R4
6
10
K
R4
7
10
K
D0
D1
C7
5
3
30P
C7
1
1
00P
C7
2
1
00P
C7
3
1
00P
C7
4
1
00P
C7
0
C7
6
3
30P
C7
7
3
30P
C7
9
1
00P
C8
0
1
00P
C7
8
33
0
P
RA
S
2
/R
O
S
2
/R
O
S
1
/O
P
T
C
S
/E
X
IN
T
0
/E
X
IN
T
1
/T
R
Q
1
/T
R
Q
2
/W
R
0
/R
D
0
4-
6B
6-
3
C
4-
8B
6-
7
C
6-
7B
6-
7B
6-
7B
6-
7B
6-
7D
6-
7D
6-
7
B
/E
X
W
A
IT
+5
V
R6
1
10
K
C8
1
1
00P
R6
8
330
C5
8
D2
D3
D4
D5
D6
D7
NM
I
/R
E
S
E
T
RX
D
2
TX
D
2
SC
K
1
/IR
Q
0
TP
R
C
R
Q
2
1-
5
D
4-
6A
3-
6A
1-
2C
1-
2C
1-
2C
1-
2C
A
[0
..
23]
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A1
0
A1
1
/W
A
IT
/U
A
R
X
UA
S
C
K
/U
A
T
X
IR
T
X
RC
O
R6
7
1M
X2
7.
37
M
H
z
C5
9
1-
2C
1-
2C
1-
2C
6-
3
B
1-
2B
1-
6B
+5
V
R6
2
(1
0
K
)
IRDA
6-
3
B
C8
2
C
AP N
P
Q2
A
1
266
EC
B
R6
3
3.
3
K
/P
R
S
T
/P
T
M
G
MA
1
5
4-
6B
1-
2A
1-
2A
A1
2
A1
3
A1
4
A1
5
A1
6
A1
7
A1
8
A1
9
A2
0
A2
1
A2
2
+5
V
C6
6
0.
1
u
C6
7
10
u
50V
C6
8
0.
1u
A2
3
+5
V
+5
V
R5
7
10
K
R5
8
10
K
/IP
L
ON
6-
7B
G
a
te
a
rr
a
y
(M
P
C
A
6
)
2/
6
EX
IN
T
0
EX
IN
T
1
EX
IN
T
2
EX
IN
T
3
WR
0
RD0
RA
1
5
RA
1
6
VSS
RA
1
7
RA
1
8
EX
W
A
IT
WA
IT
M
CR2
M
CR1
DA
X
2
DA
X
1
RCRX
IRRX
VSS
VC
C
UA
T
X
UA
RX
UA
S
C
K
IR
T
X
RC
O
RC
V
RDY
2
PT
M
G
TR
G
I
A2
3
PR
S
T
RC
V
RDY
1
MA
1
9
MA
1
8
MA
1
5
TE
S
T
MD
0
MD
1
IP
L
O
N
IN
T
4
RA
S
P
DO
T
E
N
TW
A
IT
N.
U
N.
U
N.
U
N.
U
N.
U
ST
H
2
SC
K
2
HT
S
2
SL
M
T
R
SL
M
T
S
SL
M
T
D
RJ
M
T
R
RA
S
3
NU
VSS
VC
C
AS
KR
X
SYN
C
DO
T
8
DO
T
9
RJ
M
T
D
RJ
M
T
S
DO
T
5
DO
T
6
D0
T
7
VSS
DO
T
1
DO
T
2
DO
T
3
DO
T
4
RJ
T
M
G
RJ
RS
T
RA
S
1
RA
S
2
RO
S
2
RO
S
1
OP
T
C
S
R5
4
10
K
R5
5
10
K
R5
6
10
K
R5
9
10
K
R6
0
10
K
Click on the first or last page to see other ER-A490 (serv.man2) service manuals if exist.