model N641.3 ser# 680452fs. i was getting a ac lo on display and throw the gfi on trailer and a separate cord as well. checked input was fine. was told i needed a 621270001. i put it in and no power to display, nothing. read something about non compatible displays and boards. original board has 1078-83-603 printed on it and a sticker with 619361. trying to get this figured out for next weekend use. please feel free to call 727-432-2813 thanks, Jason field