I'm in a bit of a spot of trouble and could use some help. My nephew accidently spilled some koolaid on my Floor Pod Plus and now the amp selector knob wont switch to different distortions no matter how much i turn it. I know a little bit about circuitry and such so i took great care to clean of the main circuit board, the only one that had koolaid on it. I'm grateful the rest of it still works fine but i dont have the money to send it to be repaired so i need an at home solution if possible. Any help would be greatly appreciated.