So have a Black Knight that has been working fine for awhile. I recently tried to pull it from the wall to level the machine. When I put it back, the attract mode comes on and it has credits... everything looks normal. But the game won't start from the button. Tried reinserting the balls but no luck. Looked at the switch behind the button and it looks like it's making contact.
Not sure where to start or what it might be... have done some mods and basic repair.
Any help would be appreciated... thanks.