Luxman PD-441 Needs Service


I have used and enjoyed problem-free my PD-441 for mono recordings for about 2 years. Suddenly, both the 33 and 45 speeds will not lock in and recordings sound predictably horrible. I have already run up about $250 in local service fees and since they have no definitive solution in sight, I have pulled the plug on their efforts. So, does anyone know where I could have this problem corrected?
4musica44107
Have all the original electrolytic capacitors been replaced? This should be done as a matter of course to ensure stability, and may even solve the problem.
Yes, all of the caps were replaced along with several other parts. The problem appeared to be corrected; the table ran at 33 and at 45 for hours-long periods without a hitch. Then the next day when the table was turned on and tested, the speed lock problem had returned for both speeds. Very frustrating.