I have a Yamaha Rx a820. We want to play movies in the yard using our external speakers too. When I connect the second hdmi out to a hdmi cable to rsr 232 adapter to connect to the older projector I get no video signal when on DVD...works fine wine I change the receiver to cable box etc....but it won't get a signal on the projector when set to DVD....would it be the adapter, if yes what is different about the signal that DVR cable works but DVD player does not?