Alright, so I have a Super Mario Kart that's not working and I can't seem to figure out why. The pins are clean and shiny, I can't see any broken traces, all of the pins are getting continuity, I reflowed the solder joints, and still get nothing. Not even a garbled screen or blank screen. Maybe I'm missing something obvious? As they say two heads are better than one so I'd like to hear another opinion on this.