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Severe Ghosting problem with J-PAC
BobA:
I am glad things are looking good for you. Weird problems are the worst since logic does not always help get to the root of the problem.
BuriedEgg:
I have new results to report:
After a almost the entire day of steady operation with the new Choke Cores attached to the wiring it finally did an auto-keystroke. It was P2-B6 that auto-triggered.
I wonder, if I go out and buy more chokes and just pile them on, if that would solve this thing. Is that ridiculous? Also, everybody, don't feel weird about making suggestions even if you feel it may seem random.
Just one auto-trigger all day long may seem pretty good. I know I may seem like a perfectionist. The reason I have to have the occurence of the auto-triggering buttons down to 0% is because just one single "F2" auto-trigger can ruin my entire progress in a game. That is a total show-stopper when friends are over.
Imagine having to explain that to a party of friends playing "Shadow Over Mystara" when the game resets in the middle of fighting Synn after collecting the "Sword Of Legend"! Yeah, that actually happened back in August. I was mortified...
AndyWarne:
--- Quote from: pinballjim on November 14, 2010, 08:56:37 am ---Eh, if you've already got all the wires RF choked, there's not much else to do there.
You could try the wrapping the JPAC in a towel and sticking in an anti-static bag, though.
I don't think you'll ever completely eliminate the presses... that's a problem that's dogged me and others for years with those encoders. I guess we'll all be shoving them in faraday cages ourselves (SO glad I was able to trouble shoot Andy's boards for him ::) )
--- End quote ---
I have never had one report before of phantom key presses with any of our boards. I have PMd you yesterday to ask for your email address so that I can remind myself what your problem was and how it was resolved. From your description it was an entirely different issue to random phantom keys. Also who are these "others" you mention?
If anyone else has ever experienced random phantom keys with our boards please post here.
Fact is, if other people were experiencing this issue I would have added a delay into the firmware which is a 5 minute task. Thats still an option as the firmware is downloadable but I dont want to introduce a delay into the button response on the basis of one user having an issue.
I have already suggested a fix for the extreme EMI/RFI problem that the OP is having but he has not yet implemented it.
BuriedEgg:
Installed the Ceramic Disc Capacitors on "F2" and "P2-B6" switches.
No more auto-triggers!
That's it. Done.
Thanks everybody. I hope this helped anybody else living in an area with high RFI/EMI floating around. This was a really screwy problem that got me extremely frustrated but I'm glad in the end. I got to learn a lot from everybody here who contributed.
Thanks!
Megaweapon:
Disregard