BAD SOLDER JOINT
I just used a piece of cardboard to press on the J3 connector and the screen lit right up! Wow. I heated up each pin on the connector, added a tiny little bit more solder, and it's as good as new.
I just used a piece of cardboard to press on the J3 connector and the screen lit right up! Wow. I heated up each pin on the connector, added a tiny little bit more solder, and it's as good as new.