You're currently viewing posts by Pinsider Tuukka.
Click here to go back to viewing the entire thread.
Probably your ground connection is bad. The 50V and slight tingle you feel are present because the game line filter has small capacitors from live and neutral to ground, and they act as voltage divider for your 110V line voltage. Not dangerous as such (very small current), but try to find out why the ground is not "grounded".
Just checked my system 11 Bad Cats and Elvira, and they are both wired exactly like that. Everything inside is connected together by the ground strap, but the strap itself is not connected to mains ground.
Maybe that's why nearly all Finnish games have an isolating transformer installed.
WPC games seem to have their ground strap connected to mains ground however.
You're currently viewing posts by Pinsider Tuukka.
Click here to go back to viewing the entire thread.
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/unusual-grounding-issue-in-williams-system-11-pinbot?tu=Tuukka 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.
Lempäälä