Playboy
Bally, 1978You're currently viewing posts by Pinsider minnesota13.
Click here to go back to viewing the entire thread.
The ground for the displays comes from and through pin 6 of J1 of the sound board. The circuit ground originates from J3-20 on the solenoid driver board. Both the sound board and displays share the same ground circuit. A weak connection at the solenoid driver board could be the problem.
Try running a jumper from a ground test point on one of the xpin displays directly to the solenoid driver board ground test point and see if that eliminates the buzz.
You're currently viewing posts by Pinsider minnesota13.
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/bally-playboy-buzzing-sound?tu=minnesota13 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.
Macomb, MI
Coffs Harbour, NS