Ya turning that front panel knob has the same results, the DTV and Tuner work but CD and DVD don't. Having it set on remote just allows me to flip around faster to try to find some discrepency between the inputs.
A studio engineer friend of mine offered the idea that the internal amp wasn't putting out enough power to get the signal to the speakers in Zone2. There's probably forty or fifty feet of speaker wire in the walls between the reciever and the speakers. But if that was the case, that would mean that the DTV and Tuner are externally amped, right? I can see how the DTV would be since the audio signal gets run through a 5.1 system with an amp in the sub, but I don't know how the Tuner would be.
Just more confusion.