It is definitely the by product of do-it-yourself. But how else will I learn . . .
I was replacing burnt out bulbs and cleaning my ToM. Once I was done, I restarted the machine and noticed that the Two upper lanes didn't work (the switches didn't detect the ball rolling over them), the Bumper Jet didn't fire and the two "bumper" just above the flippers do not kick the ball when hit. I have carefully inspected the wiring and I cannot find any broken wires. But now when I turn on the machine, it double feeds a balls into the plunger.
I have attached two pics in case they help. I don't have an owners manual, but using the one I have found on line, does help me is understanding the the Test (T.1) results.
I have read about the blown U20 (and I have 3 on order in case that's the issue). But I'd like to confirm, if possible, before I start removing and replacing chips (which I have done before on other devices).
Any help would be greatly appreciated! My apologies if this has been covered. I tried to find out what I could before posting.
Thank you!
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