Do you know where the connected side of the green wire terminates too? That will help alot in figuring out what it is!
Yeah, it terminates on the metal plate on the other side of the board, you can see part of the plate through the hole on the board, it's definitely a ground, I just don't know where it came from, my guess is it's tied to the EL panel as that's the only thing not functioning on the head
