Recent purchase, Sankyo BIG SLOT with electronically operated mechanical rotating center wheel, won't payout when prizes are won. Thought it may be the sensor in the bottom of the ball collector/ball run. Switched it out with a known good one from another Sankyo(digital center screen). The sensor in question actually operated correctly in the known good machine. Checked all 4 of the fuses too. This worked properly when I checked it out a month ago. Not sure where to go from here. Can't seem to upload any pics either. Any suggestions or help would be appreciated, thank you.