I just bought a Yamaha 770W 7.1 ch rxv563bl receiver. I hooked it up last night and I am having trouble using it with me charter Cable Motorola HD DVR. I hooked up the receiver to all speakers and connected all my components. My hook- up is as follows Motorola HD-DVR HDMI out to Reciver HDMI in and Then from Receiver HDMI out to Magnavox (sp) LCD TV. The picture and sound are working but only in 480i and 480P. When I am on a standard channel its in 480i but when I select an HD channel it will only go into 480p. If I run HDMI straight to the TV the cable box will go to 1080i the max supported resolution for the HD-DVR. Why will it not go to 1080i when hooked up through the receiver. I have been trying everything and searching everywhere to fix this. I really want to enjoy my new receiver with HD quality which is why I bought this receiver. Any help would be greatly appreciated.

Smething tells me it is a DRM problem. In other words, when the HDMI signal goes through the receiver, the TV does not get the DRM data it needs to enable the signal thinking that the signal is essentially "copied".

Could be a 'handshake' issue. Try this:
unplug power to all three (tv, receiver, dvr).
unplug all hdmi cables.
restore power to all three.
one at a time plug in hdmi (dvr>receiver>tv).

So here is my results from playing around with plugging and unplugging things. If the cable box is on and hooked into the receiver the motorola box says it is outputting 1080i as soon as I plug in the tv it reverts back to 480p. Why is confusing the hell out of me. I have tried several different HDMI cables no change, I tried looking at the settings of the tv no change. If I turn the tv off and keep the receiver on hooked up to the cable box I get out put at 1080i and can hear the audio but as soon as I turn the tv on it kicks it back to 480p. How do I solve this? Thank you for your replies. I am checking the forums about every 10 min hopeful for a solution. I have seen this problem posted else where but no solution. Please be my hero.

Okay so after doing even more research I came to the conclusion that my HDDVR was the problem for it auto assigns the format and would not chose the correct selection of 1080i. So I researched the the motorola HD DVR and found out how to access a secret menu and force the resolution after doing that I set it back to what it was set to and now it works for some reason. Here are the instructions to access the menu.

1. put dvr in standby mode by hitting the power button
2. as soon as it enters standby hit menu button
3. a white screen appears with all sorts of override functions
4. go to override line and right click to off
5. go to tv resolution line and right click looking at the dvr until it displays 1080i
6. click power button and bam 1080i is working.

after about 10 min I put the override setting back on so it will bounce back to 1080i and 480p and so far it seems to be working fine.

Glad it's fixed. If you don't mind, in the future, try to keep topic titles specific. See my edit. Someone with your same issue won't be able to find the thread later if it just says "please help." Being specific also gets faster answers. Much thanks.

Doc