https://pinside.com/pinball/forum/topic/how-to-efficiently-ask-for-pinball-repair-help-em
https://pinside.com/pinball/forum/topic/welcome-to-pinside’s-em’s-sub-forum-how-to-use-this-section
If your machine is full of integrated circuits (Has electronic displays), Pinside has lots of forums just for you, but not this section.