Thanks
Thanks for the help, I did find some advise on grounding on Bob Roberts site, it seems that it's a good idea to earth ground all the metal frames in the cabinet. I think the mystery green wire used to go to the power supply board, so I'll hook it to the switching power supply frame.
Jeff
Tron Upright, need help with earth ground (frame ground)
I recently found a Tron cabinet with a half arsed conversion to a switching PS, the old PS board is gone, it doesn't boot up properly.
The wiring harness has been hacked so I can't just get a MCR switcher board and plug it in.
The purple...