I have a Cue Ball Wizard by Gottlieb Premier 1992, that blows skill shot fuse F27 2a sb on 3rd ball with 2 ball multiball that happens every 3rd ball. Ive replaced driver chips, filter board parts, opto sensor board and both optos, and finally upgraded to a new driver board made by Rottendog Amusements. I've researched on line and have seen forum report of a software issue that I'm not sure was ever resolved. I can't find a software version on the machine setup and the roms only have 734 and rom type marked on them. I'm in need of experienced wizard.....

thanks wayout440 , I have experienced q10 cooking on the older board and had a number of
Buzz 72's I replaced but without luck. so I went to the new driver board with heavier duty transistors.

thanks paragon66x , Ill check out and beef up the grounds, something I haven't tried.