Apologies for the crossposting - I wasn't sure which forum I should post in!
I've picked up a cheap Pioneer PL-400 turntable. It had a few issues - some of which I think I've fixed - mostly with the control panel and the speed select switch.
I doused the speed select switch in contact cleaner and WD40 to loosen it up and now it latches properly. However, the turntable seems to have issues with 33rpm - the strobe lights seem to go steady at far too slow a speed for 33rpm. I can of course adjust the speed using the fine tuning controls underneath (which I also cleaned) but then the strobe is out (showing the record as spinning too fast).
Any ideas what could be going wrong?