Just white noise

Hey, any ideas??
Receiver (hk3390) has white noise only through all inputs plugged in or not…. Headphones or speakers…. Have performed resets, but still only noise. Any ideas anybody?

 

As you haven't had a useful answer, and I hate seeing enquiries go unacknowledged, at least I would reply.

The only idea that came to me is that if your unit has been stored for some time, say a couple of years, it could be that there's a backup battery that stores settings that has gone flat. Otherwise, I have no idea what could be the problem, as you have said you've reset it.

Also, how loud is this white noise? A very gentle hiss, or a loud roar? If very quiet, could be a hardware or software failure that's stopping audio getting to the output. If loud, that points to a software failure that's screwed up digital audio data.

In either case, if you've checked any troubleshooting hints in the manual, you need go get a tech to look at it. It's not something we can diagnose remotely unless it's a common fault with an easy remedy.

S

 

Thanks for the reply. The noise is full volume btw, loud roar. It has been sitting up for a while. Another user posted the same issue last year with a similar model…. no resolve.

https://www.audio-forums.com/threads/all-white-noise-from-harman-kardon-3490-receiver.113412/

I did reach out to HK and they emailed me back. Impressive considering this is a 13 year old receiver…I will look into your suggestions, thnx again

 

Yep sounds like a digital fault. Not repairable.