Help! My Nakamichi LX-5 won’t play, rewind, ff, or record.

Every time I press play, it starts up, then automatically stops. The counter doesn’t move at all, either. Any idea what this could be?
I've probably repaired thousands of cassette machines over the years- I started in 1974. Nakamichis are a bit trickier to source parts but not impossible. If you plan to do this yourself be warned that you have to be careful!! I would take it to a qualified technician and expect to spend $200-$300 getting everything sorted- it likely needs new filter capacitors in the power supplies as well.
atmasphere Yes, I think i'll take it to a cassette deck tech. I opened it up once, and it was very cluttered and I didn't touch anything, because I was afraid I would mess it up more.