Hi hjh632
look at the JPG here https://pinside.com/pinball/forum/topic/king-of-diamonds-start-up-sequence#post-3907359 --- toggle-off Your pin and unplug the main power cord (Safety reasons), locate in Your Hearts and Spades the mentioned Relays and switches --- clean the contact-points on the leaf blades on the switches - may look for "good closing when they are closed". Maybe this helps on Your problem. Greetings Rolf