Help! Onkyo tsxr501 only plays center channel in prologic 2 for t.v.

[pbc74]

All of a sudden, I only get sound out of my center channel when I watch t.v. using prologic 2. The only change I made was upgrading my center channel (alpha center) to a bigger center channel (alpha 37c). Before I made this change, prologic 2 would play sound out of all speakers as normal. Now, it will only play out of the center channel when watching t.v. When I play dvds or music, it my receiver (onkyo tsxr501) works fine. Has anyone ever experienced this?

[AsSiMiLaTeD]

Can you try hooking up your old center again and see what happens?

I'd be reluctant to think it's an issue with the speaker, but might as well try it...

[pbc74]

....no, unfortunately I can't put the old center back. I traded it in for my new one. That was the only change I made to my whole system so it doesn't make sense why all of a sudden it would change the whole sound field but something changed. I checked all the receiver settings I could think of and still no luck.

[AsSiMiLaTeD]

Originally posted by pbc74
....no, unfortunately I can't put the old center back. I traded it in for my new one. That was the only change I made to my whole system so it doesn't make sense why all of a sudden it would change the whole sound field but something changed. I checked all the receiver settings I could think of and still no luck.
I wouldn't think it would be the speaker...but I've seen wierder things...

Somehow you need to rule that out as a possibility...Do you have another speaker somewhere you can hook up to that channel? Maybe one of your surrounds?

[pbc74]

yeah, I have an old sony box set that I can take one of the speakers and do a quick test. The strange thing is that it is only the prologic 2 mode when I watch t.v. that changed. Every other mode works fine.

[AsSiMiLaTeD]

Yeah, sound strange for sure...at least this will rule out the new center and you can start troubleshooting other areas...

Let us know what you come up with...

[fireshoes]

It's probably not this but just in case.....did you maybe bump the speaker A on/off button on the receiver? I work in retail and you would be surprised how often this comes up.

[pbc74]

I finally figured it out. Out of all things, it was my CABLE BOX!!!! I had to get it replaced. Somehow it was sending a bad signal or something. ...the good thing is that it wasn't my home theater equip. Thanks for the help though guys.

[Shizelbs]

Phew. Bet you were relieved.