Hi all - long time lurker here.
Developing problem with my new Mits 65831 - perhaps y'all can help a feller out.
Within 5 minutes of turning the set on, it, well, groans. This is not the fan noise which does not bother me. It's a soft grinding noise that varies in pitch and volume, culminating in a distinct clicking sound (like an electronic relay), accompanied by flickering of the general picture, and also temporary higher brightness - then it all settles down. The groan, sounding like electronic indigestion, seems to be coming from behind the control panel in the very center of the bottom of the set.
It does not appear that a fully warmed up set eliminates the problem, which appears intermittently, but always 5 minutes after power up. The whole cycle will go on for about 2-3 minutes before finishing its little evil dance. I've also noticed that the set no longer displays the source format (720, 1080i) when changing channels. I have not changed any settings other than PQ. Using Comcast STB though Composite 1 input.
Help me to get this gremlin!