Try connecting the AVR to a different circuit as a test (using an extension cord if necessary).Hi!
I've owned the SR7011 for 3-4 years without issue but have started seeing some erratic behavior recently with one of them starting last night causing me to post this.
Starting last night, when I turn on the receiver, there is a loud pop/feedback from what seems to be all my 7 connected speakers, and there is a heavily visible voltage drop on the ceiling light that's on the same circuit as the receiver. Prior to this issue starting, there was the standard receiver turn on click, and a faint flicker of the ceiling light (if switched on) that I came to expect as normal.
When I turn the volume knob physically on the unit, no matter what direction I turn it, the volume changes in random directions. I read about this being somewhat standard wear-and-tear of the volume knob that can be fixed by a dusting so I haven't given it much attention. Just use the remote anyway.
In my receiver setup, only one of the 'HDMI OUT' ports is in use - and it goes to a Sony TV (XBR75X900F). As an input, I have the Nvidia Shield Pro as my main streaming device.
Separately, I have a Sony Bluray Player (X700) with two HDMI out ports; the primary port goes directly to a Sony projector (VW715ES), and the secondary hdmi (audio) port goes to the receiver. Now, when I view content on my projector, the audio is routed through the receiver, but remember no video is being processed/passed through there. The problem is that I get frequent audio cutouts when watching movies. After a lot of trial and error, if found that if I disconnect my (powered off) TV from the receiver while I view the projector, the cutouts go away and everything works fine. I can't really figure out how to fix this. All sort of HDMI cec/control settings are turned off on all devices.
I was getting by with issues (2) and (3), but with (1) that started last night, I'm now thinking I need to get this looked at. Any advice?
Refer to post #6 and do a "Restart" and if no joy, then do a microprocessor reset.