Denon DN-C640 Service Manual page 41

Q024 : BD45302G-TR
Q025, Q036 : SN74LV00APW
(TOP VIEW)
1A
1
1B
2
1Y
3
2A
4
2B
5
2Y
6
GND
7
FUNCTION TABLE
(each gate)
INPUTS
A B
H H
L X
X L
LOGIC DIAGRAM, EACH GATE (POSITIVE LOGIC)
A
B
55
Pin No.
1
2
3
4
5
V
14
CC
4B
13
4A
12
4Y
11
3B
10
3A
9
3Y
8
OUTPUT OUTPUT
Y
L
H
H
Y
Pin Name
ER
SUB
GND
V
OUT
V
DD