NEED HELP WITH TX-SR608 SET UP

I can only get two of four speakers to play sound.

Is there a balance setting or mono/stereo setting that I have hit that has knocked the one side off line?

Earlier all 4 speakers were operating well, as well as another two set up on the Zone 2.

Will resetting to factory settings bring everything back to normal? Help!

Hi elkskins,
Can you try using new or different speaker wires to see if the issue is within the wires?

I don't think it is the speaker wire.

I can swap the two non-working speakers in to the side that is working, and they start to work, and the other side is still dead.

Hi elkskins,
Have you ran through Audyssey speaker calibration?

I have not run speaker calibration

Hi elkskins,
Please try running audyssey to see if that corrects the issue, if not we can troubleshoot this further for you. Thanks!