Sharp XE-A302

XE-A302U CIRCUIT DIAGRAM AND PWB LAYOUT
– 19 –
*IC19 2 0Pin:VCC
10Pin:GND
*IC14 GND:10pin VCC:20pin
FOR POP UP & KEY I/F
FB1,2,3:JUMPER WIRE
DRAWER1
STANDARD
RIGHT-ANGLE CON
STRAIGHT CON
-->PATTERN SHART
for 2 Line LCD I/F
for Rear LCD I/F
SK423
B16B-XH-A
40FE-BT-VK-N
A0 A1 /LE0W
/LE1W
/LE1W
/WR
/LE3W
/LE0R /LE1R
/CS3
A3
/LE2R
BLON
/LE2R
/LE1R
EE RS
/LE3R
KR0 KR1 KR2 KR3 KR4 KR5 KR6 KR7
/LE0R
D[0..7]
/RESET
P90
/S9 /S2 /S4
c dp e b
/S3 KS2 KS0
g a
KS3 /S6 KS1
d f
KR4 KR6 KR7 KR3 KR1 KR5 KR0 KR2
P91
KR10 KR11 KR8 KR9
KS1 KS0 KS2 KS3
KR8 KR10 KR9 KR11
LCDON
K
R/W
EE
R/WR/W RSRS
VCC
DB[0..7]
DB3 DB4
DB6 DB6
DB6
DB1 DB3 DB4
DB1
DB2
DB1
DB5 DB0
DB2 DB0
DB7
DB0
DB3
DB5 DB7
DB4 DB2
DB7 DB5
P91
/VON
D5
d cD2 dpD7
D4
D7 D3
D5
D4 D2 D0 D0
b
D4
D2
D6
D0 D1 D3
D2
e
D1 D3
D1
D1 D2
D5
D1
D0
D1
D7
D0
a
D3 D3
D3
GND
D0 D5
/LD0W
D7
D5
D7
D0
gD6
D3
D6
D6
D6
f
D4
D2
D2
D1
D4
/S6
A01,2 A11,2
/CS31 A31,2 /WR1,2
/LDCS1
BLON1
/POFF 1,5 /RES 1,2,4
/RESET1
MDR1
P911,4,6
/S96 /S2 /S44 /S34 /S6
/CTS26 /DR26 /CD26 /CI26
LCDON1
P911,4,6
/S6
PLDATA1 /PLWR1 /PLRD1 /PLCS1
/VON5
D[0..7]1,2
DRAWER11
VCC VCC VCC
VCC
VLED
VCC
VCCVLED
VDRW
VCC
VCC VCC
VCC
VCC
VCC
VCC
R102 22K
C81
0.1uF
C72
100pF
+
C76
22uF/10V,OS
+
C68 10uF/50V
C69
0.1uF
R103 4.7K
IC15
74HC374
1 2 3 4 5 6 7 9
10
8
20 19 18 17 15 16 14 13 12 11
QE Q0 D0 D1 Q1 Q2 D2 Q3 GND D3
VCC
Q7
D7 D6
Q5 Q6
D5 D4
Q4
LE
IC20 74HC374
1 2 3 4 5 6 7 9
10
8
20 19 18 17 15 16 14 13 12 11
QE Q0 D0 D1 Q1 Q2 D2 Q3 GND D3
VCC
Q7
D7 D6
Q5 Q6
D5 D4
Q4
LE
C83 0.1uF
Q3 KRC111S
B
EC
R94
10K
CN4
R-LCD CN
1 2 3 4 5 6
IC14 74HC273
3 4 7 8
13 14 17 18 11
1
2 5 6 9 12 15 16 19
D1 D2 D3 D4 D5 D6 D7 D8 CLK CLR
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8
FB3
(JUMPER)
+
C134 10uF/16V
C66 0.1uF
C67
0.1uF
CN6
DR CN(2Pin)5046-03A
1 2 3
IC17
BA00ASFP
2 1
4 5
63
R99 12K
D21
1SS355
AK
Q2 2SD2212
B
EC
C82
0.1uF
R96 5.6K
R100 10K
IC21
74HC245
1 2 3 4 5 6 7 9
10
8
20 19 18 17 15 16 14 13 12 11
DIR A1 A2 A3 A4 A5 A6 A8 GND A7
VCC
1G
B1 B2 B4 B3 B5 B6 B7 B8
CN5
DR CN(2Pin)5045-03A
1 2 3
IC16
74HC138
1 2 3 4 5 6 7 8
16 9 10 11 12 13 14 15
A B C G2A G2B G1 Y7 GND
VCC
Y6 Y5 Y4 Y3 Y2 Y1 Y0
CN2
KEY I/F RELAY CN
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
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
IC19 74HC244
2 4 6 8
11 13 15 17
1
19
18 16 14 12 9 7 5 3
1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 1G 2G
1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4
FB2
(JUMPER)
F1
T400mA/250V
+
C78
10uF/50V
C79
0.1uF
D2
1SS355
AK
D3
1SS355
AK
R93
10K
R98
2.4KF
FB1
(JUMPER)
CN3
F-LCD CN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
R104 10K
+
C74 10uF/50V
C84
100pF
C75
0.1uF
IC4D 74LV00A
12 13
11
+
C77
22uF/16V
R101
1.8K
C73
100pF
D4
1SS355
AK
+
C70
10uF/50V
D22
1SR154-400
C71
0.1uF
R95
10K
C80
100pF
IC18
74HC245
1 2 3 4 5 6 7 9
10
8
20 19 18 17 15 16 14 13 12 11
DIR A1 A2 A3 A4 A5 A6 A8 GND A7
VCC
1G
B1 B2 B4 B3 B5 B6 B7 B8
R97 10K
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
3/7I/O I/F CIRCUIT