Hi tushar
Thanks for your reply. yesterday i bought a HDMI 1.4 cable and connected it from HDMI out (on AVR) to HDMI (TV - ARC). Still im facing the same issue that is when i change the input and then put it back on STB the screen goes blank and HDMI out continuously flashes.
I have connected my STB to AVR and from AVR i have taken HDMI out to TV. I do not have Optical output for my TV.
Thanks
Newton