ER-A490 (serv.man2). ERA490 Service Manual - Sharp ECR Service Manual (repair manual). Page 51

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8
7
6
5
4
3
2
1
A
B
C
D
1
2
3
4
5
6
7
8
D
C
B
A
D
21(
P
2
3
B
)
D23
(P25B
)
D24
(P26B
)
D25
(P27B
)
D22
(P24B
)
51
52
53
54
55
76
77
78
79
80
VF2
-
-
D15
(P17B
)
D14
(P16B
)
1
2
3
4
5
26
27
28
29
30
VF
1
VF
1
VF
1
VF
1
-
G4
(4
GA
)
G
3(3
GA
)
G
2(2
GA
)
G
1(1
GA
)
DG
11(
12G
B)
D
ISPLAY T
U
BE
-3
2V
ZD1
MT
ZJ
3
9
C
VCKDC
C8
10u
/10
V
G1
0
G9
G8
G7
G6
G5
VF1
R
VF
1
R
VF1
VF
1
R1
5
3.3
VF
2
VF
2
-32V
R16
3.3
VF
2
R
VF
2
R
SA
PG7
PG6
PG5
2K
 x6
R9
R14
RA2
100 x7
PG4
PG3
6
7
8
9
10
11
12
13
14
15
16
17
18
19
31
32
33
34
35
36
37
38
39
40
41
42
43
44
-
NC
D33
(P35B
)
D34
(P36B
)
S
A
(P
1A
)
S
B
(P
2A
)
S
F
(P
3A
)
SG
(P
4A
)
SC(P
5
A
)
S
E
(P
6A
)
SD(P
7
A
)
DP(
P
8
A
)
ID
(P9
A)
NC
DG
10(
11G
B)
D
G9(
10GB
)
D
G
8
(9G
B)
D
G
7
(8G
B)
D
G
6
(7G
B)
D
G
5
(6G
B)
D
G
4
(5G
B)
D
G
3
(4G
B)
D
G
2
(3G
B)
D
G
1
(2G
B)
DG
0
(1
G
B)
VF
2
56
57
58
59
60
61
62
63
64
65
66
67
68
69
81
82
83
84
85
86
87
88
89
90
91
92
93
94
-
-
D13
(P15B
)
D12
(P14B
)
D11
(P13B
)
D10
(P12B
)
D9(
P11B
)
D8(
P10B
)
D
7
(P9B)
D
6
(P8B)
D
5
(P7B)
D
4
(P6B)
D3
(P
5
B
)
D
2
(P4B)
D
1
(P3B)
D
0
(P2B)
D26
(P28B
)
D27
(P29B
)
D28
(P30B
)
D29
(P31B
)
D30
(P32B
)
D31
(P33B
)
D32
(P34B
)
NC
-
-
VF1
VF
1
VF
1
VF
1
70
71
72
73
74
75
D35
(P1B
)
D16
(P18B
)
D17
(P19B
)
D
18(
P
2
0
B
)
D19
(P21B
)
D20
(P22B
)
20
21
22
23
24
25
45
46
47
48
49
50
G1
0(10GA
)
G9(9GA)
G8(8GA)
G7
(7
GA
)
G6(6GA)
G5(5GA)
VF
2
VF
2
VF
2
VF2
VF
2
VF
2
X1
32
.7
68KHZ
  1
  3
2
X2
R22
1M
C14
15p
C15
15p
VCKDC
PG
2
PG1
G4
G3
G2
G1
2K
 x4
R18
R19
R20
R17
RA3
1
00K
 x4
1
SB
SC
SD
SE
SF
SG
RA1
10
0K
 x
8
.
  1
.
  2
.
  3
.
  4
.
  5
.
  
6
.
  7
.
  8
.
  9
.
 10
.
 11
.
 12
.
 13
.
 14
.
 15
.
 16
.
 17
.
 18
.
 19
.
2 0
.
2 1
.
2 2
.
2 3
D D
I G
2 4
.
2 5
V C C
2 6
.
2 7
.
2 8
.
2 9
S D I S P
3 0
.
3 1
.
3 2
SR
ES
33
DS0
34
.
35
.
36
.
37
.
38
.
39
.
40
R
ESE
T
41
OS
C
2
42
OS
C
1
43
GND
44
CL1
45
CL2
46
TE
S
T
47
.
48
.
49
.
50
.
51
.
5
2
.
5
3
.
5
4
.
5
5
.
5
6
.
5
7
.
5
8
.
6
4
.
6
3
.
6
2
.
6
1
.
6
0
.
5
9
IC
1
CKDC4
100K
/MOD
R
/CFSR
KEX
0
KEX1
/MORD
/CFSR
KEX0
KEX1
C1
470p
C2
1000
p
ST
0
ST
1
DP
ID
R2
47K
R1
47K
R3
4.7
K
R4
4.7
K
1
234
5
CA1
470p
R21
220
CKDCR
CKDCR
C13
0
.1u
F
+5V
DG
11
DG
10
+5V
1
  1
2
  2
3
  3
4
  4
5
  5
6
  6
7
  7
8
  
8
9
  9
10
 10
11
 11
12
 12
13 RESET
 13
14 CS
 14
15
 SC
K
 15
16 SDATA
 16
17
 P1
 17
18
 P0
 18
19 VC
C
1
 19
20 XOUT
 20
21
 XIN
 21
22 V
S
S
 22
23
 23
24
 24
25
 25
26
 26
27
 27
28
 28
29
 29
30
 30
31
 31
32
 V
P
 32
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
49
49
48
48
47
47
46
46
45
45
44
44
43
43
42
42
41
41
40
40
39
39
38
38
37
37
36
36
35
35
34
34
33
33
IC2
M
6
60
04
F
P
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
/R
E
S
ET
S
DG9
DG8
DG7
DG6
DG5
DG4
DG3
DG2
DG
1
DG0
/K
R
0
/K
R
2
/K
R
3
/K
R
1
/KR
Q
/SHEN
DSO
/KR
0
/KR
1
/KR
2
/KR
3
/KR
Q
/SHEN
R8
33
C11
470p
C1
2
470p
C0
470p
C16
470p
C17
470p
C18
470p
C19
1000
p
/STOP
/P
O
F
F
ST
2
ST
3
ST
3
ST
2
/P
O
F
F
/S
TO
P
VCKDC
+5V
C3
0.1
u
C4
0.1
u
C5
10u
/10
V
C6
0.
1u
STH
HTS
/SC
K
/SC
K
HTS
ST
H
1G
N
D
CN6
(DS
~
M
AI
N)
C7
10u
/16
V
/DCS
/D
SC
K
11
KEX1
VF1R
CN
3
(K
E
Y
)
CN1
(POP UP)
R5
3
3
R6
33
R7
33
C9
470p
/R
ES
ETS
C10
22
00p
C2
0
10u10V
D35
D34
D33
D3
2
D31
D30
D29
D28
C21
0.
1uF
R
0
27
KG
C23
100p
D11
D1
2
D13
D14
D15
D16
D17
D18
D1
9
D20
D21
D22
D23
D24
D25
D26
-32V
D27
C22
0
.1u
F
+5V
R24
2.2K
Q1
C3198
D2
1SS133
BU
ZZ
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
1
2
3
KEX0
CKDCR
GN
D
P-
O
N
V0
GND
PG7
PG6
PG5
PG4
PG3
PG
2
PG1
DP
ID
SG
C
N
4(
KE
Y)
CN2
(POP UP)
/K
R
0
/K
R
1
/K
R
2
/K
R
3
2
3
4
5
6
7
1
2
3
+5V
ST
H
HTS
/SC
K
/KR
Q
/SHEN
/S
TO
P
/P
O
F
F
GN
D
CN7
(DS
~
M
AI
N)
4
5
6
7
8
9
10
11
12
VCKDC
-32V
VF
1
VF
2
GND
P-
O
N
V0
/R
E
S
ET
GND
2
3
4
5
6
7
8
9
4
5
6
7
8
9
10
GND
+5V
/MODR
/CFSR
ST
0
ST
1
ST
2
ST
3
SF
SE
SD
SC
SB
SA
VF
2
R
R23
12K
+5V
~
BZ
(DI
SPLAY-
69
)
(DI
SPLAY-
68
)
(DI
SPLAY-
67
)
(DI
SPLAY-
66
)
(DI
SPLAY-
65
)
(DI
SPLAY-
64
)
(DI
SPLAY-
63
)
(DI
SPLAY-
62
)
(DI
SPLAY-
61
)
(DI
SPLAY-
60
)
(DI
SPLAY-
59
)
(DI
SPLAY-
58
)
(D
IS
PL
AY
-5
7
)
(DI
SPLAY-
56
)
(DI
SPLAY-
55
)
(DI
SPLAY-
54
)
(DI
SPLAY-
71
)
(DI
SPLAY-
72
)
(DI
SPLAY-
73
)
(D
IS
PL
AY
-7
4
)
(DI
SPLAY-
75
)
(DI
SPLAY-
76
)
(DI
SPLAY-
77
)
(DI
SPLAY-
78
)
(DI
SPLAY-
79
)
(DI
SPLAY-
80
)
(DI
SPLAY-
81
)
(D
ISP
LA
Y
-3
0
)
(D
ISP
LA
Y
-3
1
)
(DI
SPLAY-
32
)
(D
IS
PL
AY
-3
3
)
(DI
SPLAY-
34
)
(DI
SPLAY-
35
)
(DI
SPLAY-
36
)
(DI
SPLAY-
37
)
(DI
SPLAY-
38
)
(DI
SPLAY-
39
)
(DI
SPLAY-
40
)
(DI
SPLAY-
41
)
(C
N3-
7
)
(C
N3-
6
)
(C
N3-
5
)
(C
N3-
4
)
(C
N3-
3
)
(C
N6-
6
)
(C
N6-
7
)
(4
-B
)
(DI
SPLAY-
70
)
(DIS
PLAY
-9
)
(DIS
PLAY
-8
)
(D
IS
PL
AY
-8
7
)
(DI
SPLAY-
86
)
(DI
SPLAY-
85
)
(DI
SPLAY-
84
)
(DI
SPLAY-
83
)
(DI
SPLAY-
82
)
(3
-B
)
(D
ISP
LA
Y
-2
6
)
(D
ISP
LA
Y
-2
7
)
(D
ISPL
AY-
2
8
)
(D
ISP
LA
Y
-2
9
)
(C
N1-
5
)
(C
N1-
6
)
(C
N
1
-7
)
(C
N1-
8
)
(C
N1-
2
)
(C
N1-
3
)
(C
N1-
4
)
(DI
SPLAY-
20
)
(DI
SPLAY-
21
)
(DI
SPLAY-
22
)
(DI
SPLAY-
23
)
(D
IS
PL
AY
-2
4
)
(DI
SPLAY-
25
)
(C
N2-
9
)
(C
N2
-1
0)
(C
N1-
1
)
(C
N7-
6
)
(C
N7-
7
)
(C
N2-
8
)
(C
N2-
7
)
(C
N
2
-6
)
(C
N2-
5
)
(C
N2-
4
)
(C
N2-
3
)
(C
N4-
6
)
(D
IS
PL
AY
-1
7
)
(DI
SPLAY-
18
)
(C
N4-
7
)
(C
N4-
8
)
(C
N4-
9
)
(C
N7-
2
)
(C
N7-
1
)
(C
N6-
5
)
(C
N6-
4
)
(C
N6-
3
)
(C
N4-
4
)
(C
N4-
5
)
(C
N3-
2
)
(C
N3-
1
)
3.
 D
isp
la
y
 P
W
B
 c
ir
c
u
it
 d
ia
g
ra
m
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