I have to fix a water damaged controller

@rcfan422 it will help if you give us more details. What circuit board? From what device? What happened to it? What is wrong with it? What have you checked? Those would be a good start. The more details you provide, the greater the chance of getting some helpful answers. Also, pictures always help. Post some of your board with our QUESTION. You need to edit the Question and use this guide Adding images to an existing question

You can only add pictures to Questions or Answers but NOT comments.