Technics SP10 Mk2 speed problem

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JohnnyIC

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I have a weird problem with my SP10 mk2. It was not working when I bought it but after I sourced a replacement logic board I managed to get it running, I never ran it for long because I still had to build a plinth for it. So this weekend I made a temporary plinth, fitted the table to it and switched it on. Now all of the sudden the speed was way off on all 3 speeds, it was running fine before.
Things I have checked so far: Power supply voltages are all correct, all the power supply electrolytics look brand new and was probably replaced by the previous owner, tried adjusting VR101 and VR102 which only made 78rpm run at the correct speed. What else should I check?
 

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