I hoped I could "share" the cd and dvd audio coax input so that they both look to the same coax input for audio. So that's good.
But it occurred to me after I posted that if the 7.1 input has no video assigned, would it just leave the video that already was on still on? This happens in my current system (Yamaha RXV990 as pre/pro with Sunfire amp) when I have it set to TV and switch to CD, the video remains unless I choose a source that has a video. So I wondered if I could just set the 990 to DVD and then choose 7.1 input, leaving the video still coming from the DVD, in this case, an S video as I'm not using the DVI or HDMI from my player. That is, if it's not possible to assign the 7.1 input to use the S video from the DVD source.
Mark