Quoted from smersh:no luck getting rhe start button to pull in the start relay.
Inspect and diagnose the circuit in currieddog 's post with Alligator clip jumper wires
https://pinside.com/pinball/forum/topic/mibs-start-button-wont-pull-in-start-relay#post-5816071
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features