Marantz sr 5005 setup question

Set the digital input to coax, I think that is all you need to do tho it's been a few months since I went through the setup, I think you can do it though.

Nope, can only play video from digital coax or component and audio from digital coax at the same time in this case. The manual says I can't play hdmi video and another audio source. The Video Select option will allow selection of different video sources, but only from inferior component or coax inputs. Also, can't play any digital inputs thru zone 2, got to come in thru the rca analog inputs. The HarmanKardon AVR 254 did these things for me. It's frustrating that the Marantz will not. The sound from the Marantz is so impressive, I'm keeping it despite being not near as user friendly as the HK imo.

You can then run component from the DTV box to a separate input and then assign the audio source to whatever you want, component will easily handle the 1080i of DTV and the audio is never better than DD/DTS sop coax of optical digital will cover that.