All the sudden I have no sound on any of my inputs. When I run the speaker test I see it cycle through the speakers and I get a slight rumble on the subs. I thought at first the headphones option had been activated but it is not that. I show a digital signal coming in from the componets on the 990 screen but no sound coming out. When I turn it way up I can hear a slight rumble on the subs but nothing from any of the speakers (7 speaker set up? any suggestions. My son was fooling around with the remote so I was thinking it could be something there but cant find anything to do. Help. Thanks in advance.

Just solved my own problem the auto switch for the amp somehow got turned off. Sorry for any headaches.

Glad to hear you got it working.