NAD 6240 Cassette Deck Needs Work.

This unit plays, but one spindle stops turning and it unwinds the tape. It sounds good for a few seconds, then stops. There is some wear to the head (or dirt - I’m not sure). And I was wiping the unit off with some alcohol and it faded the cassette door. That’s the lighter spot on the door. With a little know-how, I think you could have a great player!