My cat decided to urinate in a NES I have been working on (the NES did not have top of the casing on it and it was not plugged in). I have not actually tried hooking it back up yet, because I am uncertain about what steps to take before hand to insure that the NES will still function.

I know about cleaning contacts, but the board itself? What can it be cleaned, and will cleaning be enough or should I consider it an already lost cause?

Anyone here wise to the effects of urine vs. electronics?