Read Sharp XE-A303 (serv.man4) Service Manual online
XE-A303 (V)
CIRCUIT DIAGRAM AND PWB LAYOUT
– 22 –
PRINTER DRIVING
5/7
C
D
B
A
C
D
B
A
876
5
4
321
8
76
5
4
321
NOT INSTA
L
L
modified 06,01
HUS0
SES
D
0
PHUS0
SES
R
1
SES
D
1
SES
R
0
1
S
U
H
P
1
S
U
H
STP#
A
0
STPB
0
STPA
0
STPB
1
STPA
1
STP#
A
1
STP#
B
0
STP#
B
1
PES0
1
HUS0
1
PE
S
1
1
SES
R
0
SES
D
0
PHUS0
SESR
1
SESD
1
PHUS1
HUS1
1
PH01
1
STP#
B1
6
STPB
0
6
STPB
1
6
I10
1
I01
1
I00
1
STP#
A
0
6
I1
1
1
STP#
A1
6
STP#
B
0
6
PH02
1
PH12
1
STPA
0
6
STPA
1
6
PH1
1
1
VCC
7
VCC
VCC
VCC
VCC
VCC
VCC
VCC
24V
VCC
VCC
MOT
O
V
MOT
O
V
VCC
VCC
VCC
IC17B
74HC14
3
4
14
7
+
C83
100uF/50V
1
2
R191
1OHM 1W 1.0% F
C91
470
p
R184
3.3K
D28
RB160L-6
0
1
2
+
C85
100uF/50V
1
2
D22
1
2
C70
0.1uF
+
-
IC15B
BA10
3
9
3
5
6
7
8
4
R186
56K
+
C82
100uF/16V
1
2
C74
0.1uF
C77
0.1uF
+
-
IC15A
BA103
9
3
3
2
1
8
4
C87
470p
C73
0.1uF
D25
1
2
IC18
JRC NJM7824
1
3
2
IN
OUT
GND
D23
1
2
C71
0.1uF
R169
56
K
C90
4700PF
F4
T1.0A/25
0
V
R175
2.7K F(1%)
R172
3.3K
R167
3.3K
R174
1 OHM 1W 1.0% F
R178
2.2K
TP5
TEST
P
O
INT
R40
1K
+
C84
100uF/50V
1
2
R163
1K
R173
1OHM 1W 1.0% F
D24
RB160L-
6
0
1
2
R190
1OHM 1W 1.0% F
C80
4700P
F
R176
1.1K F(1%)
R168
56
K
C92
4700PF
R189
3.3K
R180
1K
R4
10K
R164
270
R193
1.1K F(1%)
R179
2.2K
+
C78
100uF/16V
1
2
R161
2.2K
IC20
UDN2916LB
24
23
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
22
11
12
VBB
OUT2B
E2
OUT2A
GND
GND
OUT1A
E1
SENSE1
OUT1B
I01
IO02
I12
PHASE2
VREF2
RC2
GND
GND
VCC
RC1
VREF1
SENSE2
PHASE1
I1
1
R5
10
K
C89
470p
R185
56
K
R35
1K
C75
0.1uF
IC17A
74HC14
1
2
14
7
C81
0.1UF
R192
2.7K F(1%)
R177
3.3K
D27
1
2
R162
2.2K
R181
2
70
D21
1
2
D26
RB160L
-6
0
RB160L
-6
0
RB160L
-6
0
RB160L
-6
0
RB160L
-6
0
RB160L
-6
0
1
2
R160
3.3K
C88
470p
R2
10
K
TP6
TEST
P
O
INT
C79
4700P
F
IC16
UDN2916LB
24
23
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
22
11
12
VBB
OUT2B
E2
OUT2A
GND
GND
OUT1A
E1
SENSE1
OUT1B
I01
IO02
I12
PHASE2
VREF2
RC2
GND
GND
VCC
RC1
VREF1
SENSE2
PHASE1
I1
1
R3
10
K
R39
1K
C72
0.1uF
R36
1K
C93
0.1UF
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