JVC KS-FX460R Service Manual page 21

HD74HC126FP-X (IC751) : Buffer
1.Terminal layout
1
2
3
4
5
6
7
2.Block diagram
Vcc
Input
UPC1228HA(IC901):Head amp
IN1
1
ANP1
NFB1
2
OUT1
3
VCC
4
GND
5
OUT2
6
NFB2
7
ANP2
IN2
8
UPC1228HA
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
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
KS-FX460R/KS-FX463R
1-19