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
11/12
RS232C CONNECTORR (RSCN1)
/C
S
SD
/R
S
RD
/D
R
/C
D
/C
I
/ER
/C
S
SD
5
9
4
8
3
7
2
6
1
RSCN1
DSUB9
+5
V
/C
D
/D
R
RD
/R
S
SD
/C
S
/C
D
1
/D
R
2
RD
3
/R
S
4
SD
5
/C
S
6
/ER
7
/C
I
8
+5
V
9
GND
10
CN21
RS CN
/C
D
1
/D
R
2
RD
3
/R
S
4
SD
5
/C
S
6
/ER
7
/C
I
8
5V
9
GND
10
DRCN1
+5
V
C25
1
0.
1
U
/R
SS
/ER
S
TX
D
/CDS
RXD
/R
I
/DRS
/C
SS
2-
2C
2-
2C
2-
2B
2-
2B
2-
2B
2-
2B
2-
2B
2-
2B
C1+
12
C1-
14
C2+
15
C2-
16
V+
13
V-
17
T1IN
7
T2IN
6
T3IN
20
T4IN
21
R1OUT
8
R2OUT
5
R3OUT
26
R4OUT
22
R5OUT
19
/EN
24
T1OUT
2
T2OUT
3
T3OUT
1
T4OUT
28
R1I
N
9
R2I
N
4
R3I
N
27
R4I
N
23
R5I
N
18
/S
HDN
25
V C C
1 1
1 0
1 0
IC27
MA
X2
11
C25
2
0.
1
U
C25
3
0.
1
U
C25
5
0.
1
U
C25
4
0.
1
U
R33
4
R33
5
R33
6
R33
7
R33
8
10
0X5
/ER
/C
I
FB
1
FB
2
FB
3
FB
4
FB
5
FB
6
FB
7
FB
8
IC
P
O O
H
M
/R
S
/ER
SD
RD
/C
D
/C
I
/D
R
/C
S
+5
V
/C
I
/ER
/R
S
RD
/D
R
/C
D
C24
7
C24
8
C24
9
C25
0
10
00PX5
C24
6
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