why is my dvd frozen?

I have a JSI Home Theater System Model JS5010 and it won't come on. When it's left on to long it goes to sleep, so when I evacuated for Hurricane Gustav I didn't turn it truely off. When I got back home it was on playing the radio through the speakers. I turned the power off and the next day I turned it on it said "HELLO" like it normally does when the power is turned on and then went back to the radio. I tried to press the function button on the device to put it on dvd but it was frozen on the radio station and would not change functions from the device or the remote. So I turned it off and unplugged it for about a day turned it back on and nothing comes on the screen it just sounds like the dvd in there is spinning. Did it blow a fuse when the power went out and came back on? Can it be fixed?