JVC KD-S700GN Service Manual page 27

HD74HC126FP-X (IC801) : Buffer
1.Terminal layout
1
1C
2
1A
3
1Y
4
2C
5
2A
6
2Y
7
GND
2.Block diagram
Vcc
Input
3.Pin function
14
VU
13
4C
12
4A
11
4Y
10
3C
9
3A
8
3Y
Vcc
1A
Output
1Y
2A
3A
2Y
4A
1C
2C
Output
3C
2Y
4C
Output
3Y
Output
4Y
Note) CL includes probe and jig capacitance
Input Output
C A Y
L X Z
H L H
H H L
Note) H:High level
L:Low level
X:Irrelevant
Z:Off(High-impedance)
State a 3-state input
1k
S1
CL
1k
Sample as Load Circuit 1
Sample as Load Circuit 1
Sample as Load Circuit 1
KD-S700GN/KD-S700BU
KD-S7250
1-27