Hey guys got a question , for some reason the players choice menu will pop up during game play without be activated it occurs randomly and the only link i can associate it with is when the left flipper is pressed repeatably, there is no sequence to determine what causes it, it can happen on startup then pop up throughout the game randomly, Ive run through the switch matrix and edges test they both register and there are no other random switches being triggered, I have removed the shared lamp strobe line on driver board no change have disconnected left flipper terminals individually and together "two left flippers in this game" and played thoroughly to make sure something else wasn't triggering the issue, i will continue to diagnose however my question is shouldn't the phantom switch like the right ramp opto in this case being triggered inactively, show some consistency in when it triggers as stated there is no sequence as to when the players choice pops up only to say that pressing the left flipper constantly seems to trigger it spasmodically.. Any help would be appreciated

Sorry mate not sure what you mean by menu pop up?, the opto is on the right side of the ramp "rightgap" and if by menu you mean in diagnostics then yes it registers it works also in game when its supposed it, just also randomly activates when it chooses to! nitrocow

sorry mate its not the diagnostic menu that pops up when in play its the "players choice" menu/option when you hit the right ramp in normal play "not in a round" its a feature of the game so example you can opt for a multi ball or extra ball or light double etc. nothing to do with the test menu, hope that makes sense!, big hurt is a great game the more i delve into it, im now thinking my problem maybe a dry joint on the diode board but not sure will test later today, my original question was as to why it pops up randomly. Generally in my "limited" experience a phantom switch playing up tends to have another switch cause the issue for example a shorted switch call it 32 causes 23 to play up every time you close switch 32 but in this case it doesn't, it happens at random so my my logic tells me that it is more than just a shorted or faulty switch that is causing my issue hence the post,

Thanks for you're help Benhurr it ended up being the opto board look like there was a heap of gunk Ive swapped over a temporary opto board and will get onto giving it a clean and testing components, your a wizard my man Will have to read up on ground upgrade never had cause to look into but as im getting more into repairs something ill have to tend too.. thank you for seeming to always reply on my gottlieb system 3 woes..