I have heard in the past a procedure for marine electronics (radios, depth finders, etc.) that were wet with salt water;
Flush them completely with fresh water. This removes all the salt. Then flush them completely with rubbing alcohol. This removes the water. Then dry completely with a hair dryer.
I've never tried this so I can't say that it will work but if your display does not work now it would only cost the alcohol to find out.
Thanks Harry, It sure wont hurt to try not like It Is working now.lol. The board actually looked good so I just dried It out, I will definitely give It a try and let you guys know. New one Is like $130, only thing I used It for was feed mode
I have a friend who was looking to sell one and I can ask him tomorrow about it if you want. It was only connected to apex to set it up initially then taken off and put back in box. PM me if you want me to ask him about it.