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ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT
– 25 –
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
4/7
PRINTER DRIVER
S
G
D
14Pin : VCC
IC21 7Pi n : GND
JDS
JAS
RAS
RDS
STRB1#1,6
STRB4#1,6
STRB2#1,6
VHCOM1
STRB3#1,6
RPES# 6
JPFA# 6
JPFB# 6
JPFC# 6
JPFD# 6
JAS1
JDS1
RPFA# 6
RPFB# 6
RDS1
RPFC# 6
RPFD# 6
RAS1
TM16 TM 1
PHUPS1 6PHUPS1
VH 6
RPES1
JAS1
JBS1
RAS1
RBS1
JPES1
JPES# 6
VREF 1
FVHS 6
VPTEST1
VJCOM 6
VRCOM 6
+24V
VCC
+24V
VCC
+24V
VCC
+24V
VCC
VCC VCC
VCC
VCC
D4
1SS355
R126
3.6KF
C91
1000pF
+
C93
10uF/50V
R132
15K
C88
330pF
R117
4.7K
R113
4.7K
C84
100pF
C83
330pF
C85
0.1uF
F1
T1.6A/250V
R121
240
IC19
KIA431F
1
3
2
C94
10uF/50V
D6
1SS355
R112
18KF
D9
1SS355
Q1
2SK2731
R115
100K
FB2
BFR601009C8NG
R114
4.7K
C86
0.1uF
+
C87
10uF/50V
R130
20K
R120
9.1kF
R119
100K
R124
1F(1W)
C90
0.1uF
+
-
IC17A
BA10393F
3
2
1
4 8
R129
5.6K
R176
0
+
-
IC17B
BA10393F
5
6
7
4 8
R125
1F(1W)
R136
1F(1W)
R127
10K
IC18
SMA7036M
2
11
87
6
1
15
10
5
14
3
13
9
4
12
SYNCA
SYNCB
VSRSA
OUT/A
OUTA
OUT/B
OUTB
INA
INB
REFA
REFB
RSB
GA
GB
R123
1kF
C95
22uF/16V
D10
1SS355
Q2
MTD2955V
R135
1F(1W)
C92
2200uF/35V
R133
9.1kF
D7
1SS355
R118
1K
R116
1K
C89
1000pF
R128
1K
C96
0.1uF
R122
16KF
R134
1kF
IC21D
74HC02
11
12
13
FB1
BFR601009C8NG
D8
1SS355
IC21C
74HC02
8
9
10
D5
1SS355
D11
1SS355
IC20
SMA7036M
2
11
87
6
1
15
10
5
14
3
13
9
4
12
SYNCA
SYNCB
VSRSA
OUT/A
OUTA
OUT/B
OUTB
INA
INB
REFA
REFB
RSB
GA
GB
D5
1SS355