My wife dropped her portable radio in coke. I took it apart and cleaned it and it seems to work fine except the LCD Display is dim and erratic. It connects to the PCB lands by pressure only and pressing improves the display somewhat. I don't understand how this type of connection works. I have cleaned both parts but not much improvement.
Any advice would be appreciated. I understand that the acid from the soft drink can dissolve connections and that the sugar will cause shorts. However not much got in and I have cleaned everything else pretty well. Is there some kind of contact grease that has to be applied to the lands to make a good connection?