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Buttons double firing -- please help

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ahofle:
Update.
It seems that about half of my buttons (around 10 or so) have this problem.

ShinAce:
Until you replace one of the microswitches and retest, stop making foolish assumptions.
Two years of heavy use should show AT LEAST one failure. Look at the joystick switches, and you'll see one is clearly more worn that the others. From experience, I can tell you that's likely the switch for down. If that cherry actuator on it shows enough wear to expose the white, that's a clue to keep a close eye on all switches.

Lilwolf:
but having 10 fail? 

I'm guessing its either a single wire on the grounds or something with the ipac.

But since you have soldered the wires... you can't easily check that... so try this...   Reprogram the ipac (since its easy).  Then try swapping a button that is working with one that isnt (at the ipac... two screws and your done).  Does the problem follow the button?  If not the ipac might have some issues...

Ok, now we know its the wiring.  Do you have the 10 buttons on the same ground (and the others on another one?)  Then you probably just want to redo the ground wire end to end. 

You can also write a quick program that detects key presses / releases and sends them to the console.  Then force a button down (either by hand or with a wire) and then start shaking each ground wire.  See if you can make it fault. 

Good luck

rdagger:
Your picture of the buttons shows a brownish discoloration where the ground terminals meet the plastic base of the switch.  There's a possibility that you heated the microswitches too much when you soldered them and shortened their life.

Flinkly:
if you do end up witching them, invest in some quick disconnects...

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