I dont think its got anything to do with an overwhelmed microprocessor that hangs when the processing burden gets too much.
Just watching sat tv, just watching a blu ray, just listening to music by a cd, just using headphones, low volume, high volume, speakers on, speakers off......
it doesn't make a bit of difference it freezes and the only solution is unplugging it.
I tried reseting the microprocessor once, no good.....tried it 2,3,4 times in a row as suggested by jdsmoothie......no good , it still freezes eventually.
It drove me crazy, lol. It has soured me on marantz i'm sad to say.