Hello, folks, and new to this forum. I have a Williams Grand Prix electromechanical pinball machine. Owned about 15 years, was working fine. Forgive me, I don't know a lot about electronics, but am very mechanical.
After not being used for a couple of months, a problem has developed. There are three holes in the play board where the ball drops in, points add up, and then the ball is kicked out of the holes and back into the field of play. When the ball drops into any of the three holes, or in the drain below the flippers, I hear a continuous "ker-chunk, ker-chunk, ker-chunk," but the ball does not get ejected.
Can someone please provide a suggestion as to how I might fix this? I do have the factory manual for the machine, but I'm kind of overwhelmed when I open up the lid and stare hopelessly at the 36,874 sets of points, relays, and other electrical bits.
If someone can get me in the right direction, I'm certainly capable of filing/sanding points clean, using electrical spray cleaner, etc.
Thanks in advance for any guidance you might provide.