I was futzing around behind my Denon 3310CI when it was powered up last night and suddenly all the audio stopped. When I power it on, I hear a huge pop from the speakers immediately then it goes through the normal relay clicking and startup. All indication is that the receiver is fine, video is passed correctly, headphones work.
- the front panel only has FL and FR enabled, no matter what I set in speaker setup.
- in setup, the option for Channel Level has been removed from the menu (it was there prior to my futzing, because I was using it!)
Both of these say to me that it thinks it's locked in headphone mode. Others have suggested blowing in the headphone jack, which I've done, but I think it's a stuck relay. I have reset the firmware, but that didn't fix anything (just wiped all my settings).
Is there anything I can do other than take it in? Can I fix the stuck relay myself? Please help!