Pharaoh
Williams, 1981Hello, novice here. I am having issues with my GI lights dimming during game play. The lights dim for minutes at a time and return to full brightness. I have noticed this happening when multiple coils are firing at once, shaking the playfield a bit. Any advice on what I should be checking?
Thanks
The GI is on its own circuit on the power board so it’s probably physical.
Check the connectors on the yellow wires in the lower right corner of the power board.
They are probably burnt and could also be loose or even melting off the board.
If you have a dmm you could test the voyage there too while you monkey flip to duplicate play. It should be about 6.3 v AC.
Check out pin wiki for more details
https://www.pinwiki.com/wiki/index.php?title=Williams_System_3_-_7
Wanna join the discussion? Please sign in to reply to this topic.
Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!
This page was printed from https://pinside.com/pinball/forum/topic/gi-lights-dimming-williams-system-7 and we tried optimising it for printing. Some page elements may have been deliberately hidden.
Scan the QR code on the left to jump to the URL this document was printed from.
Blue Ridge, GA