1-21
RX-E112RSL/RX-E111RSL
NJM2246M (IC511, IC512, IC513) : Video switch
GND Vout V+ Vin3
Vin1 CTL1 Vin2 CTL2
1 2 3 4
8 7 6 5
6dB
AMP.
BIAS
INPUT CONTROL SIGNAL- OUTPUT SIGNAL
CTL1
L
H
L/ H
OUTPUT SIGNAL
Vin1
Vin2
Vin3
CTL2
L
L
H
1. Block diaglam
1
3
2
IN B
GND
IN A
5
4
VCC
OUT Y
TC7SET32FU (IC672) : 2 input or gate
A
L
H
Y
H
L
1
1A
2
1Y
3
2A
4
2Y
5
3A
6
3Y
7
14
13
12
11
10
9
8
GND
VCC
6A
6Y
5A
5Y
4A
4Y
TC74HCU04AF (IC621) : Inverter
1. Pin layout