I’ve built a Picade three weeks ago and, since the begining, I’m facing a strange problem.
From time to time, all the three lower buttons of the control pannel stop working at once for some seconds. When this happens, the Picade PCB does not light up when I press any of these buttons (the other buttons, including the utility ones, just work fine and make the PCB to light up). After some random pressing of buttons the problematic ones usually start working again (also, at once). This problem used to happen quite rarely but for the last three days, it happens more frequently (once an hour).
I’ve checked the connections of the PCB and also reflashed the PCB firmware with the latest one (tried the different versions available with or without headphone detection) with no luck. My PCB seems to be the latest one (blue circuit). I also changed the power supply (I do not get any lighting symbols), but nothing changed.
Any ideas on the cause of the problem or on things I may try to solve it?