Sad day in the Lombardi household and a question.

There was a power outage that happened while I was watching my plasma with the 1050 doing powering my M60's. When the power went out I thought, "big deal" and when I powered up the 1050 again everything was fine. Well....about 2 days later my Mother-in-law was watching a DVD and the 1050 clicks off. Strange I think so I turn it back on and it turns itself back off. I then turn the volume very low and turn it back on and it powers up. I turn the volume up and it works fine. What I have found is that if the volume is higher then say 1/2 then it shuts off. What is wrong here and is the unit worth fixing or is it scap?