Reply sent in private message

Email from hjh632 :

I now notice when a game starts and I take the ball out, that manually closing the ball trough (drain) switch activates the F relay (B relay Delay Relay) and that F relay stays locked on - I don’t think it should lock on. Then nothing happens, ball count does not subtract from 5 to 4, ball release does not open to the ball lifter.
I get very lost on the schematic on all the paths leading up to the ‘subtract ball to play’ unit. Generally I’m good if I know a switch to check if it’s making contact or not. Over several months I’ve read through dozens of your responses to other people - I probably can do the jumpering you so often recommend, but have trouble finding faded wire colors. 70 y.o. eyeballs don’t help!

Coils locking on that shouldn't is the first thing to fix because they'll burn out.

Which one(s) of these 4 switches is keeping the F relay locked on?

pasted_image (resized).png