Bally Capersville extraordinary Pinball from 1966 in gameplay with explanation

Short before selling the machine i shot this video in early 2023. This CAPERSVILLE pinball is one of the german versions they made especially for the big german pinball market back then. With strange german translation of the original feature descriptions. This machine is a pinball masterpiece - fully packed with spectacular features. It was many many years ahead of its time. So far - so good: Capersville is a BIG CHALLENGE to bring it back to life if it is not working. Or: finding hidden mistakes. This machine was working fine and suddenly - out of the blue - all the lights in the backbox went off. And the fuse was melting although there not one light bulb inserted anymore. Something deep inside is touching "ground" i think.....
Might be an "easy mistake" you will think - but it surely isn't. My brain is boiling!