JVC KD-S713R Service Manual page 21

HD74HC126FP-X (IC801) : Buffer
1.Terminal layout
1
2
3
4
5
6
7
2.Block diagram
Vcc
Input
NJM4565M-WE (IC581) : Ope. amp
1
A OUTPUT
2
A INPUT -
+
A INPUT 3
V -
4
3.Pin function
14
13
12
11
10
9
8
Vcc
1A
Output
1Y
2A
3A
2Y
4A
1C
2C
Output
3C
2Y
4C
Output
3Y
Output
4Y
V +
8
B OUTPUT
7
B INPUT -
6
5
B INPUT +
Input Outout
C A Y
L X Z
H L H
H H L
1k
S1
CL
1k
Sample as Load Circuit 1
Sample as Load Circuit 1
Sample as Load Circuit 1
KD-S713R/KD-S711R
1-21