Checked the power. Got 5v to the controller board then just below 5v to each stick. Buttons all still work except for P4. Ground wire is good to go. I couldn't find anything coming from the output pins on the board. So I know going in and up to that point things check out. What kind of signal should be going out? I can't find and values on that.
Any other ideas?
Pessimist: Oh, this can't get any worse!
Optimist: Yes, it can!