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ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT
– 27 –
A
B
C
D
87654
3
21
12345678
D
C
B
A A
B
C
D
87654
3
21
12345678
D
C
B
A A
B
C
D
87654
3
21
12345678
D
C
B
A A
B
C
D
87654
3
21
12345678
D
C
B
A
6/7
OPTION RAM CONNECTOR / PRINTER CONNECTOR / DRAWER
TO OPTION RAM PWB TO PRINTER PR58HM
RIGHT-ANGLE CON
DRAWER1
DRAWER2
RIGHT-ANGLE CON
OPTION
STANDARD
UP-S02MB
EFCB322513TS X 25
A16
WR#
A3
A8
A14
A20
A21
VDD
A4
A9
A13
A18
RAMCS3#
A19
A2
A5
A12
A15
A17
RD#
A10
A1
A7
A11
A6
A0
D7
D6
D2
D3
D0
D4
D1
D5
A[0..21]1,2,3
D[0..7]1,2,3
RD#1,2
DRAWER21
DRAWER11
DSEN 1
RAMCS3#2
WR#1,2,3
JPFB#4
VH4
JPES#4
STRB2#1,4
RPfB#4
VRCOM4
PHUPS14
SO1
SI1
VJCOM4
JPFC#4
PCLK1
VH4
TM14
STRB1#1,4
RPFC#4
RPFA#4
FVHS4
STRB3#1,4
JPFA#4
JPFD#4
LATCH#1
STRB4#1,4
RPES#4
RPFD#4
VCC
VDD
VCC
+24V
FB8
D19
1SS355
FB4
R151
1.8K
R154
47K
CN7
5046-03A
1
2
3
Q5
2SD2143
FB30
BFR601009C8NG
FB21
FB13
FB17
FB9
F3
T400mA/250V
FB5
R153
10K
R152
1.8K
C125
1000pF
FB14
FB22
+
C136
22uF/16V
FB18
CN6
5046-03A
1
2
3
FB10
C124
0.1uF
FB25
FB6
FB24
CN5
T_PRINTER CN(40Pin)00 6229 640 003 800
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
R165
C122
0.1uF
CN4
OPTION RAM STACK CN.35774-4050
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
C121
0.1uF
R164
FB28
BFR601009C8NG
D18
1SS355
FB29
BFR601009C8NG
FB19
FB11
R155
2.2K
FB26
FB15
FB7
FB3
Q4
2SD2143
D13
1SR154-400
+
C137
22uF/16V
C123
0.1uF
FB23
D12
1SR154-400
FB20
FB12
FB31
BFR601009C8NG
FB27
FB16