I have a nice Willliams Jokerz and the bumper lights and the left side GI lights are out on the playfield. All under playfield feature lights work too. I do have a manual but I'm used to old school SS Ballys. Any thoughts what to check? All connections were tight. Maybe a ground issue?? Thanks for any help.........

I will check those out. Thanks........

Just checked the relay GI board and there was a burnt connector. Pin came off in the female connection. The board is a little toasted to where there is little to no metal pad on the board the pin solders to. Do you think I need a new connector and header pin?? What caused the meltdown I wonder????????Whole new relay board??????? Could probably rig it but would rather not. Thanks again guys for any insight.

Thanks for all the info guys. I can fix it myself. Any ideas what size pins these are. I've got .100 and .156 for my Bally machines already. Again thanks for steering me in the right direction....................