Pioneer Elite SC-61 High Pitched Buzz
Hello, I have a Pioneer Elite SC-61 receiver which I purchased in 2012. I have my Apple-TV, DVD and FIOS Cable box all switched through it. It's connected to a Samsung QN75Q70RAFXA 72" TV.
In the last few days I've had a problem. The sound is fine for about 10 minutes, then it starts to cut out for a few minutes. Then it emits a high-pitched buzz. It happens when any of my sources are used (DVD, Apple-TV, Cable, Radio). Any idea what could be causing this?