I do not know a lot about this. The overall appearance is in a great shape. I purchased several units from a gentleman that had the stuff for years. Powers up, but when you put a cassette in and hit play after about three seconds, it pops up it does not turn or anything so I carefully took apart the bottom and there were some belts that are broken. They are the wider ones I cleaned those up carefully I took them out the motor does spin to play the cassette other than that I buttoned it back up. could’ve really be just needs a new flux capacitor.
eBay