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Are you getting anything on the display? It sounds like you're saying you just get no audio from the speakers. Is that correct, or the receiver seems entirely dead?

If you plug in headphones, do you get anything there?

Try using the tuner (am/fm) mode which will ensure audio is sent to the speakers (as long as speakers are on/volume turned up) and this isn't a source setup issue.

Off hand this sounds like a bad amplifier circuit, but I'll be able to tell you more with some more info from you.

If you don't get sound from headphones either, then it may be an issue with the main board or the amp (which also powers the headphones)

As it appears to be a hardware fault, firmware updates wouldn't help, most likely the amp would need to be repaired.

Go ahead and try the headphones please.

Hopefully you're still covered under warranty, should repairs be necessary. If it comes to that, let me know your zip and I'll help you find a local shop that can work on this for you.

There isn't a local shop that can work on this, since you have one of the specialty models, it will need to go to the regional service center, you can take it in or ship it to them:

Adams Electronics
7128 Edinger Ave
Huntington Beach, CA 92647
714-848.0110

This is generally a good receiver.

In most cases with receiver repair, I'd say not to bother, you can replace it for less, however if this is less than a few years old or still under warranty, because it's at the higher end of the price spectrum, it may be more economical to fix.

As long as you haven't had any other issues with it, I would at least get an estimate for fixing it.

If you have had any other problems (especially with hdmi, which is a common thing to go bad in Onkyos) then I would just look into replacing instead.

If you'd like a recommendation for a replacement model, let me know.

If you decide to look into replacement, here is the one I'd go with: Denon AVR-3313CI (click for link)