I have a very early MCS Series A 6801 which has a corresponding Technics design but I do not know which model it corresponds to. This model includes pitch control, programmability, a VFD display, repeat, headphone w/ volume control etc. This unit was built in July 84. Mine will track even the most terribly flawed CDRs overburned to 80+ minutes with ease. Mine saw very little use and was stored somewhere free of dust (circuit boards are clean as a whistle), I would try cleaning the lens first and foremost and just hope the laser itself is not going. The transport design overall seems well built, lots of metal even in the tray itself. Technics did a nice job on these IMHO. Much better built than my circa 1985 Akai CD-A7 (though that unit works fine too). Very good sounding even for their age at this point, detailed and clean. I purchased a Soundesign (gag!) 5050BLK yesterday under the mere curiosity of who made it (made in Japan) which has a most unusual remotely driven laser pickup assembly, circuit board is very nice and looks like a Toshiba but if that odd drive mechanism still works I wouldnt give up hope on the Technics yet. Try cleaning the lens though, I had a more modern Sharp unit that had the worst time reading CDs of any sort if you did not keep the lens completely spot free, the slightest bit of lint would make it go nuts. The real test I think is those older blue CompUSA 80 minute CDRs I have. If the player can read those then its still doing its job. Ironically the Akai likes these better than the silver Sony CDRs.