Sharp XE-A301 - Applying Preset and Manual Exchange Rates

XE-A301V CIRCUIT DIAGRAM AND PWB LAYOUT
– 21 –
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
7/7
VCC +5VVCC +5V VLED +5.8V
NOT INSTALL
with FUSE
VH +24V
Q16:HEAT SINK
IC31:HEAT SINK
VLEDVLED
VCC
VDD
/VON
+24V
+24V
D20
1SR159-200
R129
18K
Q16
KTD998
+
C115
47uF
/16V
F4 SEMKO T2.5AL/250V
(WITH HOLDER)
IC30
LM2574
1
5 7
3
4
2
+
C114
330uF
/16V
D11
RB060L40
ZD2 PTZ6.2A
TP2 VBAT
1
CN9
BT CN(2Pin)5267-02A(BLUE)
1 2
R131 18K
D15
RB160L-60
R132 22KF
R135
1KF
R134
3KF
CN8
PS CN(2Pin)5273-02A
1 2
R128 (5.6K)
TP1 VO
1
L1
180uH Chock
+
C112
220uF/50V
F6 T2.0A/250V(LT-5)
D13
1SR159-200(1N4002)
R118 10(FUSE R)
ZD3
MTZJ5.1B or UDZ5.1B
R133 1.2KF
L2
180uH
+
C121
220uF/50V
+
C128
100uF/50V
C120
0.01uF
IC31
PQ1CG2032FZ
1
4
2 5
3
+
C111
4700uF/50V
R130 33
F5
T1.0A/250V(LT-5)
POWER TRANS1 230V/240V
C117
MYLOR 0.033uF
+
C122
2200uF/50V
+
C113
1000uF
/16V
R119
150
D12
1SR159-200(1N4002)
C116
0.1uF
R120
180
C129
0.1uF
-
+
BD1
CP301
H:
OFF ON
L:
6,8pin: N.C