Harman Kardon AVR 235 Service Manual page 86

PIN ASSIGNMENT (74HCU04AFN : IC71,72,76 )
LOGIC SYMBOL
TRUTH TABLE
1A 1
1Y 2
2A 3
2Y 4
3A 5
3Y 6
GND 7
(1)
1A
(3)
2A
(5)
3A
(9)
4A
(11)
5A
(13)
6A
A
L
H
14
Vcc
13 6A
12 6Y
11 5A
10 5Y
9 4A
4Y
8
(2)
1Y
(4)
2Y
(6)
3Y
(8)
4Y
(10)
5Y
(12)
6Y
Y
H
L