Is my Mitsubishi LT-46 rare? I can't find videos or help to fix it.

Many years ago (back in the early 90s), I took a chance and bought a new-to-me Mitsubishi stereo system, including a receiver, speakers, a drawer-style cassette deck, and a turntable. I LOVED and used it all the time (I even hauled the whole setup with me to DJ dances for several events. Maybe I loved it to death.

I have a huge music collection, and everything worked great up until just recently. I had the cassette deck in to an electronics repair place just once, about a year after I got it. I got rid of the speakers (they were huge, and I couldn't be bothered to fix the one I'd blown), but I still have everything else. The receiver needs one fuse replaced, and my dad told me what kind it was, but I can't for the life of me remember, and he has passed away.

Now I want to fix the turntable. The tone arm won't go back and forth anymore. All I have is the instruction book for setup, no repair manual, and I'm not an electronics expert, just a tinkerer. I took it (mostly) apart without destroying or losing anything, but now, before I take any further steps, I'd love to find someone who has repaired this particular model. Does anyone know where I could find a video or instructions to restore an LT-46 turntable?