Onkyo 805 receiver no sound - any clues?

I have the 805 and have not experienced this problem. I don't have enough information to diagnose the problem but I believe a systematic approach may help. First, unplug the unit for 5 minutes and then plug it in. Next, go back to default on all settings. Next, go to the radio function since it is built in and there is no concern for outside sources. Make sure you cycle through the DSP settings to stereo or Pure Audio to make sure it isn't the DSP engine. Then, let us know what you find in case it helps others. If those things fail, it may be the power supply. Did it overheat at any time? These units get hot and need lots of ventilation.

Tgrisham, thanks for the note. I have been in the troubleshooting mode for the last couple of days had have come to the conclusion that it may be a power supply or something similar.

Now the question is do I want to dump money into repairs or start fresh with a new receiver. I don't know how much a power supply would cost to fix but if it starts to get around $200 to $300 then I'm not sure that's the path I should take.

Then it is not worth fixing. Any new receiver will offer the same functionality as the 805 and cost approx $700 and have a new warranty. I still believe in Onkyo products. Good luck.

I just had this happen to my Onkyo 809. The audio just went dead on the receiver. I was told it was the audio processor board, it had to be replaced. I had purchased an extended warranty from Best Buy where I purchased this, so not sure what this would cost to get repaired. I would guess around $200.00. Good luck whatever you decide do.