JVC RX-E112RSL Service Manual page 21

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