In the control panel, tucked behind the pressure switch, is a factory supplied trouble-shoot/wiring diagram. It doesn't show the actual board diagram, but it shows all the pin connections and all the machine controls. Do you mean you can fix a burnt board, or are you saying you can fix the problem that causes the board to fry ? The 2 common things to fry on the board are the R11 resistor and the Q6 triac.