This is a used DAT recorder/player used in our church for recording sermons.  It's been on a shelf unused for over a decade.  It powers up and functions on the play  and record features.  The only problem is the tape door.  The motor that opens the door is not working.  I have managed to manually open the cassette door in order to test function.  After opening up the unit and inspecting, the door mechanism (gears and belts, etc.) works correctly, but just needs a new motor.