Gottlieb King of Diamonds (Gottlieb, 1967) issue

[Jonas 11]

Hi I have a gottlieb king of diamonds the problem I’m haveing does not happen constantly. But there definitely is a problem. Sometimes a ball will go thru a rollover that is suppose to award you 50 points when lite It will give you a extra 100 points . When special lite is on the bumpers will give you a 100 points instead of 10 . If ball hits bumpers 5 times 500 points will score . Like I said then next game it will be fine for awhile then act up help if you can thank you . It does not happen to every rollover or bumpers numbers changes each game .