Quoted from Knxwledge:game starts (or tries to start) when I hit either of the micro switches in the coin chute, but not the start button
If the Credit button doesn't activate the Credit relay, Inspect and diagnose this circuit with Alligator clip jumper wires
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features