JVC RX-E112RSL Service Manual page 20

RX-E112RSL/RX-E111RSL
TC74HC08AF (IC611) : AND gate
1. Pin layout
1A 1
1B
2
1Y 3
2A
4
2B 5
2Y
6
GND 7
TC74HC4072AF (IC612) : OR gate
1. Pin layout
1Y
1
1A 2
1B
3
1C 4
1D
5
NC 6
GND
7
TC74HC4053A (IC515) : Multiplexer
1. Pin layout
1Y
1
0Y
2
1Z 3
Z-COM 4
0Z
5
INH
6
V 7
EE
GND 8
1-20
2. Truth table
14 Vcc
13 4B
12 4A
11 4Y
10 3B
9 3A
8 3Y
2. Truth table
A
14 Vcc
H
X
13 2Y
X
12 2D
X
11 2C
X : Don't care
10 2B
9 2A
8 NC
2. Truth table
16
Vcc
INHIBIT
15
Y-COM
14
X-COM
13
1X
12
0X
11
A
10
B
9
C
X: Don't Care.
A B Y
L L L
L H L
H L L
H H H
B C D Y
X X X H
H X X H
X H X H
X X H H
L L L L L
CONTROL INPUTS
C B A
L L L L
L L L H
L L H L
L L H H
L H L L
L H L H
L H H L
L H H H
H X X X
"ON" CHANNEL
0X, 0Y, 0Z
1X, 0Y, 0Z
0X, 1Y, 0Z
1X, 1Y, 0Z
0X, 0Y, 1Z
1X, 0Y, 1Z
0X, 1Y, 1Z
1X, 1Y, 1Z
NONE