I know a lot of people have posted advice about this subject before but my issue is a bit odd. Today I went to play and test shows that opto 1 was closed. I took the advice of reflowing the solder on the optic board but had no luck. What's odd is that previously I would be playing and the game would make the noise as if the supercharger had been activated. So at this point I'm not sure if I just first change the opto or check to see if it's a board issue. I know my posts seem very noobish so please forgive me in advance. I am learning slowly. ~_~ Any advice is appreciated. Thanks.