Quoted from SteamVette:The tilt light stays on and no game can be played
The Make-Break switch on the Reset Completed (AX) relay is responsible for activating the Tilt Hold (H) relay during game reset. If that's not happening, 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