JVC KS-FX850R Service Manual page 19

HD74HC126FP-X (IC801) : Buffer
1. Pin layout
1
2
3
4
5
6
7
3. Block diagram
Vcc
Input
RPM6938-SV4 (IC602) : Remote control receiver
I/V
conversion
PD
magnetic shield
2. 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
AGC
AMP
BPF
for
trimming
circuit
KS-FX850R/KS-FX835R/KS-FX820R
Inputs Outputs
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
Vcc
Comp
Detector
Vcc
22k
ohm
Rout
GND
2-17