I have an Onkyo HT-R510 that came as as part of a theater in a box, which has worked fine, until today. I am not sure I have a receiver failure or what. Here is what's happening.

* Onkyo HT-R510 switched to Video 1. Normally gives Comcast cable TV picture and sound. Now, I get the picture, but no sound at all.

* Onkyo HT-R510 switched to DVD. Normally gives DVD picture and sound. With the DVD player OFF, I get no picture, but get the Comcast cable box sound.

No connections have been touched. I pulled components out and there are no apparent loose connections. Does the Onkyo receiver have its wires crossed inside?

- Phil

I have a similar (or the same) problem. Just recently moved to a new location so had to disconnect my system. After reconnecting the receiver at the new location I find that I can no longer get sound through the receiver on any of the video connections.

When I go to DVD, I can hear the disk, but cannot see the picture.

Now I know I'm not crazy, because I've connected the system back the way how it was, and it was working perfectly in this configuration for almost 3 years!

The only difference is the cable box. At the old location I had Directv, but at the new location I had to get Comcast. Sound familiar??

Anyway, I'm kind of ticked right now because I can't get my system to work.

Any tips???

check to see if the digital input assignments have changed

maybe the settings got reset

Thanks for the tip man, I'll check out that lead to see if its the source!

check to see if the digital input assignments have changed

maybe the settings got reset

How do you do that?

How do you do that?

Press the "Input Selector" button for which your components are connect to (DVD, VIDEO-1, VIDEO-2, VIDEO-3, TAPE or CD), see page 24 in OM.

Then press the "Digital Input" button, the display will show the currect source assignment (for example" DVD < COAX)

Using the "Digital Input" button again to cycle between COAX, OPT-1, OPT-2 and ----)

Default Settings are:
DVD --------COAX
VIDEO-1 (not assigned)
VIDEO-2-----OPT-2
VIDEO-3 (not assigned)
TAPE (not assigned)
CD ----------OPT-1