Hello, I have a 1980 Black Knight and I'm having trouble diagnosing this new issue. When a drop target falls the timer light and sound have slowed way down from what it normally would count down before resetting the targets. Also, the game is set up for just 3 play balls. The game will not end after 3. It will just keep putting a ball in play when ball passes flipper and should end game. I went up to 10 balls before powering off. This all happened at the same time, so it must be related.
Anyone have any ideas where to look for this problem?