Lately my TZ will act up during a game where the shooter lane diverter will engage, and the auto plunger lane kicker will fire like there is a ball in there - sometime multiple times. I have checked the optos and they seem to register. I searched the forum and the closest thing I can find is someone said they resoldered the opto boards because they thought there was an intermittent short. Some games go just fine, others are really bad. No rhyme or reason to it. Any thoughts or input would be most appreciated.
Thanks,
-Jeff