Star Light
Williams, 1984The old owner of my Williams Star Light had a new XPin power supply installed and it looks like two (heavier gage) yellow wire somehow didn't get connected or now don't need to be?The game plays perfectly with the exception of no GI or backglass illumination. Please take a look at the pictures and see if you see anything wrong or have any clues on what would make this happen. Thanks!
I think those need to be connected. Looks like my comet GI wires. As I recall, they were soldered directly to the power supply and I had to cut or unsolder the wires to remove it.. Maybe that is what you do when the origianal gi connector burns up. I later added a molex connector which looks like the one on your new power supply. Maybe the old owner did not have the matching connector for the new power supply. Just My guess
First put your meter on Ohms and check the resistance between your two loose yellow wires. If it's less than 2 ohms, there is probably a short in the GI and that's why it's not hooked up.
Put your meter on AC and you should see 6vac on either the pins in that pigtail Molex or the 2 pin Molex on the lower right corner of the Xpin board.
You can attach those 2 wires to either of those 6vac connector.
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Marblehead, MA
North Adelaide
Sana'a