Memphis Amp protect light

Hey guys , my friend just gave me his Memphis PR4400 amp and told me that it was broken and he had already bought a new amp. I told him i would try and sell it on ebay for parts, anyway he doesnt know much about his audio system in his car so I decided to hook it up and see what happens. I checked both fuses and they are fine. When i turned the amp on the power light blinked but the protect light stays on. I dont know what this means maybe you guys know a simple solution to the problem. Just ask me if theres any more information you need.

Its cooked.....theres not much of anything in there that would have any value....I would'nt waste the time tryin to pedal it on Ebay....The best thing I would suggest, is to get it fixed, or throw it in the garbage