Anybody know what model Discman laser modules ( D-25?) will retrofit into a Sony D-555? I've got a 1990 D-555 that powers up, motor spins a few times intermittently and then the unit powers off. I've seen this problem described in numerous threads. HAS ANYBODY FIGURED THIS OUT YET?? Is it...

Just bought a used Sony D-555 Discman (July 2010) that was supposed to work but doesn't. When turned on, it lights up, the laser eye moves up, the motor spins for a second or so, stops and the laser retracts. This repeats 2 more times and the unit powers off. Questions: Anybody been able to...