I have a Judge Dredd (Bally from 1993) pinball machine. It used to work fine, but the drop targets got stuck (just popped up and down at times).
I cut one of the cables to the drop targets and everything worked fine (except the drop targets would not go up and down obviously) for many weeks.
The only thing I noticed after cutting that wire, was that the left launcher would not launch the ball when it ended up in the lane on the left (the count down thing). But it would launch automatically when the countdown ended - and the top flippers would go off).
Then suddenly the balls will not be prepared (put in the launcher lane) when I start a new game. The start button worked fine, but there will be no ball coming up from below.
I tried to manually put a ball in the lane, but the right launcher will not launch the ball.
I tested the switches, and both left and right launcher seems to work.
I have uploaded a video to show the problem here: https://photos.app.goo.gl/edcttc381rH2LsGC7
I have even re-solded (connected) the wire for the drop targets that I initially cut off.
Help please? I am no expert at mechanics, but I am a computer guy, so I understand that this can be fixed