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Jands Electronics P/L
40 Kent Rd
Mascot NSW 2020
Australia
Ph (02) 9582-0909
3
0
20-Jul-1999
H:\LAB\EVENT4\CIRCUIT\Ev4asn3.sc1
Title
Size:
Number:
Date:
File:
Revision:
Sheet
o
f
A3
EVENT4 ASSIGN CARD
EV4ASN3
Drawn By:
3
2
1
8
4
IC1A
TL072
5
6
7
IC1B
TL072
R1
2k2
R3
1K
R20
47K
VCC
R22
100k
OC
1
C
11
1D
2
2D
3
3D
4
4D
5
5D
6
6D
7
7D
8
8D
9
1Q
19
2Q
18
3Q
17
4Q
16
5Q
15
6Q
14
7Q
13
8Q
12
IC2
74HC573
-12
R24
4K7
R2
2k2
R26
470K
R27
22K
R29
10K
R25
4K7
R30
2K2
R31
2K2
R32
2K2
R33
2K2
OC
1
C
11
1D
2
2D
3
3D
4
4D
5
5D
6
6D
7
7D
8
8D
9
1Q
19
2Q
18
3Q
17
4Q
16
5Q
15
6Q
14
7Q
13
8Q
12
IC3
74HC573
VCC
C1
100nF
R55
100R
A0
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
B0
18
B1
17
B2
16
B3
15
B4
14
B5
13
B6
12
B7
11
E
19
DIR
1
IC4
74HC245
A0
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
B0
18
B1
17
B2
16
B3
15
B4
14
B5
13
B6
12
B7
11
E
19
DIR
1
IC5
74HC245
A0
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
B0
18
B1
17
B2
16
B3
15
B4
14
B5
13
B6
12
B7
11
E
19
DIR
1
IC6
74HC245
OC
1
CLK
11
1D
2
2D
3
3D
4
4D
5
5D
6
6D
7
7D
8
8D
9
1Q
19
2Q
18
3Q
17
4Q
16
5Q
15
6Q
14
7Q
13
8Q
12
IC7
74HC574
OC
1
CLK
11
1D
2
2D
3
3D
4
4D
5
5D
6
6D
7
7D
8
8D
9
1Q
19
2Q
18
3Q
17
4Q
16
5Q
15
6Q
14
7Q
13
8Q
12
IC8
74HC574
X0
13
X1
14
X2
15
X3
12
X4
1
X5
5
X6
2
X7
4
INH
6
A
11
B
10
C
9
VEE
7
X
3
IC9
4051
R56
100R
+12
-12
Vcc
20
Vin
1
INT
9
Vrf(-)
11
OFL
18
Vrf(+)
12
DB0
2
DB1
3
DB2
4
DB3
5
CS
13
DB4
14
RD
8
DB5
15
WR/RDY
6
DB6
16
MODE
7
DB7
17
IC11
ADC0820
VCC
VCC
A
1
B
2
C
3
E1
4
E2
5
E3
6
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
IC12
74HC138
OC
1
C
11
1D
2
2D
3
3D
4
4D
5
5D
6
6D
7
7D
8
8D
9
1Q
19
2Q
18
3Q
17
4Q
16
5Q
15
6Q
14
7Q
13
8Q
12
IC13
74HC573
VCC
VCC
C23
10uF
R23
100k
C24
10uF
VCC
S/T
19
(ML2261)
LED0
LED1
SW3
SW2
100-300VAC
TO BACKLIGHT
+5
SELECT
CARD
DATA BUS
CONTRAST
GND
ALEL
R/W
DS
D1
D7
D6
D5
D4
D3
D2
D0
ALEH
-12
+5
+12
1
2
3
4
8
7
6
5
5
6
7
8
4
3
2
1
5
6
7
8
4
3
2
1
GND
GND
GND
1
4
VSS
1
VCC
2
VO
3
RS
4
R/W
5
E
6
D0
7
D1
8
D2
9
D3
10
D4
11
D5
12
D6
13
D7
14
LCD1A
40X2 LCD
DD0
DD1
DD2
DD3
DD4
DD5
DD6
DD7
DD0
DD1
DD2
DD3
DD4
DD5
DD6
DD7
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
L8
L1
L2
L3
L4
L5
L6
L7
LL8
LL1
LL2
LL3
LL4
LL5
LL6
LL7
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
S1
S2
S3
S4
S5
S6
S7
S8
D0
D1
D2
D3
D4
D5
D6
D7
F1
F2
F3
F4
F5
F6
F7
F8
S(1..8)
L(1..8)
LL(1..8)
FADTOP
FADGND
F(1..8)
DD0
DD1
DD2
DD3
DD4
DD5
DD6
DD7
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
GND
1
D0
2
D1
3
GND
4
D2
5
D3
6
GND
7
D4
8
D5
9
GND
10
D6
11
D7
12
VCC
13
RW
14
ALEH
15
VCC
16
DS
17
ALEL
18
-12
19
+12
20
CONN1
IDC20
DD0
DD1
DD2
DD3
DD4
DD5
DD6
DD7
R34
2K2
R35
2K2
R36
2K2
R37
2K2
R38
2K2
R39
2K2
R40
2K2
R41
2K2
R42
2K2
R43
2K2
R44
2K2
R45
2K2
R46
2K2
R47
2K2
R48
2K2
R49
2K2
R50
2K2
R51
2K2
R52
2K2
R53
2K2
R54
2K2
R21
10K
R28
4K7
R58
470K
R59
47K
VCC
X0
13
X1
14
X2
15
X3
12
X4
1
X5
5
X6
2
X7
4
INH
6
A
11
B
10
C
9
VEE
7
X
3
IC10
4051
R57
100R
1
2
3
4
CONN2
4X.1
1
2
3
4
CONN3
4X.1
JP1
PINWAF8
vcc
+12
-12
RV1
5K
GND
1
R/W
2
ALEH
3
ALEL
4
DEC
5
A3
6
A2
7
A1
8
A0
9
GND
10
DS
11
AR
12
AW
13
BC
14
S3
15
S2
16
LC0
17
L1
18
L0
19
VCC
20
IC14
GAL16V8