I'm, working on T2 Williams machine, Resoldered new pins for J115 J120 and 121 as the print was fully burnt away on that parts..
So the GI and playfield lighting are working perfectly now. fixed the dropdown target (coil and transistors). Was very proud of myself
So then I needed to fix the gun as it didn't move properly, So I first took the housing apart and relubed the components. Then I moved the switches around a bit and it worked! NOW IT WON'T FIRE! I am not a technician but very resourceful. But I can't figure out where the problem lies... Is it a burnt transistor, bad wiring or something else. I can't seem to find the schematics for this problem. Coil is fine, fires well in test mode. grip handle works for the plunger coil, so nothing wrong about that.. What Am I overlooking here? Can anybody help me?