I bought a used ps 1 from ebay and it played fine the first day and the next and every time after that when it's on for more that like 2 minutes it freezes up. I opened it up but could find nothing unplugged and gently pushed on all the connections but still no luck. I also bought one from the pawn shop but it's missing the little black thing that holds the disc in place. It was mainly bought for parts. Is there anything I can do?