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Monday 8 January 2018 at 21:18
Quoted from Iizi:I had my board modded by previous owner. Rightside opto was replaiced with 4-legged instead of 5-legged and modifications were made accordingly. I fixed it back to original and have had no issues since. I think 4-legged opto was too sensitive, and i could see it giving rapid phantom...
Source: http://pinside.com/pinball/forum/topic/corvette-racetrack-problem/page/2#post-4164698