Speed problem with Pioneer PL 630

Dear  @irish_tim : That's very good TT with pretty decent tonearm and magnesium headshell. I owned for several years and now is playing in my brother's home audio system.

Here you can get the service manual:

https://www.vinylengine.com/library/pioneer/pl-630.shtml


Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

Can you lubricate the platter bearing?
EDIT Checked the manual. Apparently the bearing is "oil less".
Good luck fixing it. These old direct drive tables are complex.
EDIT2 I read through the service manual. It’s very helpful and thorough. Study it and you should be able to fix this (assuming parts if needed are available).
Check to ensure all 3 hall elements are in place. Check for leaky capacitors.

Thank you gents.