Read Sharp XE-A303 (serv.man4) Service Manual online
XE-A303 (V)
CIRCUIT DIAGRAM AND PWB LAYOUT
– 24 –
PO
WER SUPPL
Y
7/7
C
D
B
A
C
D
B
A
876
5
4
321
8
76
5
4
321
POWER UNI
T
CORE
[+24V
]
NOT
INSTA
L
L
P-OFF
VCC +5V
IPEAK>2.2
A
VLED +5.8
V
IC31:HEAT SI
N
K
6,8pin:N.
C
L:ON
NOT INSTAL
L
with FUSE
H:OFF
3
KTD998
BE
C
1
2
POFF#
POFF#
VLED
VCC
VDD
VON#
2
VLED
24
V
VCC
24
V
24
V
VLED
VCC
VDD
G9
GND P
A
D
1
+
C99
3300uF/50V
1
2
IC22
LM2574HVN-A
D
J
1
5
7
3
4
2
H4
SCREW
1
G13
GND P
A
D
1
D34
RB060L4
0
1
2
R207
6.2KF
F6
T2.5AL/250
V
G
L
A
S
S
WITH HOLDER
R197
1.2KF
D32
1SR159-20
0
1
2
R202
3.9K
G1
1
GND P
A
D
1
H1
SCREW
1
D29
1SR159-2
0
0
1
2
C97
MYLOR
0.033uF
G5
GND P
A
D
1
R210
1KF
CN1
1
TJC3-2A(
B
L
U
E
)
1
2
R196
18
K
L5
180uH
H9
SCREW
1
G1
0
GND P
A
D
1
+
C109
47uF
/16V
1
2
H12
SCREW
1
ZD1
PT
Z
3
0
B
1
2
G6
GND P
A
D
1
SM
T1
MA
R
K
1
+
C98
6800uF/50V
1
2
R208
3KF
+
C103
1uF/50V
1
2
+
C106
220uF/50V
1
2
R204
2.7K
TP8
VBA
T
1
G1
2
GND P
A
D
1
F7
T2.0A/250V
G
L
A
S
S
+
C100
100uF/50V
1
2
G3
GND P
A
D
1
H5
SCREW
1
R199
18
K
R194
10(FUSE R)
R209
180
SM
T2
MA
R
K
1
ZD4
UDZS5.1B
1
2
G7
GND P
A
D
1
H10
SCREW
1
G4
GND P
A
D
1
IC24
PQ1CG2032F
Z
1
4
2
5
3
CN10
VH-
2
A
1
2
R21
1
150
H6
SCREW
1
D31
RB060L4
0
1
2
R206
56
K
ZD2
UDZS5.1B
1
2
H1
1
SCREW
1
F8
T1.0A/250
V
G
L
A
S
S
-+
BD1
KPBC
1
0
2
4
1
2
3
H2
SCREW
1
R41
0
+
-
IC23A
BA103
9
3
3
2
1
8
4
+
C108
330uF
/16V
1
2
C107
0.01uF
G1
GND P
A
D
1
C1
10
0.1uF
H7
SCREW
1
Q9
KTD
9
9
8
1
3
2
G8
GND P
A
D
1
R49
33
C101
0.1uF
R203
9.1KF
L6
180uH
H3
SCREW
1
D30
RB160L-6
0
1
2
H8
SCREW
1
+
C105
1000uF
/16V
1
2
D33
1SR159-2
0
0
1
2
+
-
IC23B
BA103
9
3
5
6
7
8
4
R205
10KF
R195
22KF
R198
(5.6K)
G2
GND P
A
D
1
C104
1000pF
+
C102
220uF/50V
1
2
ZD3
PTZ6
.2
B
1
2
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