I have a Williams Strato-Flite which has me baffled on a problem. The game has 3 each of A-B-C and D targets. Hitting all of them will light a "Special" or any two sets will be "Double Bonus" etc.
My problem is that one of the "D" targets is dead unless some other targets are hit first. Specifically all of the A's or the D closest to it. When this happens the problem D lights up and functions normally. Without hitting any of the other targets, it does nothing at all!
I have poured over the schematics and cant find any reason why this could happen. The relay functions very well when activated. I'm baffled! Any ideas?