JVC TH-A75 Service Manual page 31

4.13 BA7603F-X (IC211/IC221) : Video signal switcher
• Pin layout & Block diagram
16 15 14 13 12
SWa
1 2 3
4.14 BD4740G-W (IC272) : Reset
• Pin layout
5
Vcc
NC
1
11 10 9
SWc
SWb
4 5 6 7 8
4
Vout
SUB GND
2 3
CTL OUTPUT
H IN2
L IN1
SWa,SWb,SWc: Clamp inputs
• Block diagram
Vcc
Vref
GND
5
4 Vout
3
(No.22009)1-31
TH-A75