I'm hoping someone can help me out here.
It's the Switch Matrix on a Party Animal.
I posted earlier about how it's behaving oddly. Pressing a switch will sometimes (not always) trigger another switch (or two or three) in the same ROW.
At first, I thought it would be the capacitors that are on some of the switches. They get old... they dry out.
Correct me if I am wrong, but those capacitors are there so when a switch is VERY QUICKLY pressed, that the CPU will still have time to detect that switch. Which means that removing those caps (cutting one leg) should allow the Switch Matrix to continue to function while losing some sensitivity on the switches with caps.
I have cut a leg on all switches with caps. However, my phantom switches are still occurring all over. Which means it has to be bad diodes, right? But my problem is, for example, I press the Left Outlane switch and it sometimes triggers the Mushroom switch. So I replace the diode on BOTH of those switches... and... the problem persists. Ugh!
Is there more to the story of this 6803 switch matrix? Is there another place I should be looking?
My game is triggering phantom switches all over the place. It seems like its not "a couple bad diodes".
Anyone been down this road before and know how to resolve this issue?