I just received my F3 + PB3 from Italy and I'm trying to troubleshoot the audio problems. I don't have my multiboard yet so I can't test a different cart. On boot up, I'll get the sfx for the first 2 characters, but not the others. I'll also get the sfx for the bouncing ball animation. However I get no other music or sfx in-game or otherwise. I do consistently get those other previously mentioned sfx though, even after power cycling and leaving it on for a few minutes. I cleaned the edge connector and reseated the game a number of times. I also varied the voltage at the edge connector from about 4.9 to 5.1V and nothing changed the behavior. I lightly pressed on the mobo while it played and the behavior still didn't change. In test mode I was able to get the first sound to play one time and the effects that play while changing the volume work for a few seconds while I raise/lower the volume, but then stop.
Any ideas on where to continue looking?
Any ideas on where to continue looking?