JVC RX-DP10VBK Service Manual page 31

TC74HC4053AF (IC501, IC502, IC541, IC542, IC543) : Multiplexer
1. Pin layout
1Y 1
16
0Y
2 15
1Z
3 14
Z-COM
4
13
0Z 5
12
INH 6
11
V
7 10
EE
GND
8 9
TC74VHC157FT (IC681, IC682) : Multiplexer
1. Pin layout
1
SELECT
A S
2
1A
B
3
1B
Y
4
1Y
A
5
2A
B
6
2B
Y Y
7
2Y
8
GND
TC74HCT04AF (IC654) : Inverter
1. Pin layout
1A 1
1Y 2
2A 3
2Y 4
3A 5
3Y 6
GND 7
(TOP VIEW)
2. Truth table
CONTROL INPUTS
Vcc
INHIBIT
Y-COM
L
X-COM
L
1X
L
0X
L
A
L
B
L
C
L
L
H
X: Don't Care.
16 VCC
G
15 ST
A
14 4A
B
13 4B
Y
12 4Y
A
11 3A
B
10 3B
9 3Y
14 VCC
13 6A
12 6Y
11 5A
10 5Y
9 4A
8 4Y
"ON" CHANNEL
C B A
L L L
0X, 0Y, 0Z
L L H
1X, 0Y, 0Z
L H L
0X, 1Y, 0Z
L H H
1X, 1Y, 0Z
H L L
0X, 0Y, 1Z
H L H
1X, 0Y, 1Z
H H L
0X, 1Y, 1Z
H H H
1X, 1Y, 1Z
X X X
NONE
2. Truth table
INPUT
ST SELECT A B
H X X X
L L L X
L L H X
L H X L
L H X H
X: Don't care
2. Truth table
A Y
L H
H L
RX-DP10VBK/RX-DP10VSL
RX-DP10RSL
OUTPUT
L
L
H
L
H
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