image/svg+xml
Sheet_1
SN74LS04N
U1
1A
1
1Y
2
2A
3
2Y
4
3A
5
3Y
6
GND
7
4Y
8
4A
9
5Y
10
5A
11
6Y
12
6A
13
VCC
14
SN7430N
U2
1
1
2
2
3
3
4
4
5
5
6
6
8
8
11
11
12
12
&
W27C512
U4
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
D0
D1
D2
GND
Vcc
A14
A13
A8
A9
A11
/OE
A10
/CE
D7
D6
D5
D4
D3
24 soc
X1
1
P1
2
P2
3
P3
4
P4
5
P5
6
P6
7
P7
8
P8
9
P9
10
P10
11
P11
12
P12
13
P13
14
P14
15
P15
16
P16
17
P17
18
P18
19
P19
20
P20
21
P21
22
P22
23
P23
24
P24
1
1
2
2
3
3
4
4
GND
7
VCC
14
GND
10
GND
13
GND
9
SN74HC30
Unspecified connections
between W27C512 and 24 socket
are pin to pin
Connect to
/CE of EPROMs
socket of plotter's
fifth EPROM
(SN7430N)
SN74HC30
(SN7430N)