Just received the 990 and 7125 yesterday. Initially was running just fine when I set up earlier today. Turned off to have dinner and when I turned them back on, the 990 shuts off after a few seconds. I see the display, see a picture, so there is a signal, and then shut-off. Keeps turning on and then almost immediately, off. I unplugged the amp to see if that was the problem, and shut-off continues. Any thoughts?

Ross