JVC KW-XC8 Service Manual page 64

KW-XC828
HD74HC126FP-X (IC461,IC761) : Buffer
1.Pin layout
1C 1
2
1A
3
1Y
4
2C
5
2A
2Y 6
GND 7
3.Block diagram
Vcc
Input
NJU7241F25-X(IC651,IC504):Voltage regulator
1.Terminal layout & Pin function
(Top View)
1
2
3
1-60
14 VCC
13
4C
12
4A
11
4Y
10
3C
9 3A
8 3Y
Vcc
1A
Output
1Y
2A
3A
4A
1C
2C
Output
3C
2Y
4C
Output
3Y
Output
4Y
Note) CL includes probe and jig capacitance
Pin function
1 GND
5
2 V
IN
3 V
OUT
4 NC
4
5 STB
2.Pin function
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
CL
Sample as Load Circuit 1
Sample as Load Circuit 1
Sample as Load Circuit 1
S1
1k