Micro had both a DC and AC motor available for the 1500 series TT's.
Model RY1500D is DC servo motor.
Model RY1500A is an AC motor - these are quite rare.
I don't think the controllers will work in either case.
You might get an improvement plugging into a regenerated power source such as the PS Audio Power Plant, otherwise leave as is. I did clean and replace the oil on the Micro motor unit I had - but you need to know what you are doing.