Wanhdt Speed controller Schematic or circuit diagram

Hello, I have a board that I purchased, and It has stopped working. it uses a basic dual motor ESC, and it is made by Wanhdt. I am hoping someone can guide me to a schematic or circuit diagram for this board, as that is what I need to fix it. A few of the resistors have come off the board, and I need to know their values. I appreciate any help I can get. The brand the board came from was a TeamGee, and the model is an H5.

Thank you very much,

Hugh M.