HI I have a 2005 Genie S-40 Boom lift and both joysticks quit working overnight. With key switch on ground control everything functions properly from the ground control panel. When key is on platform with the foot pedal pushed all of the toggle switched functions properly but neither joystick functions. Also the platform circuit board red and yellow LEDS are both flashing at the same time so I can't read any error codes. The machine worked great the day before and over night no joystick controls. I am thinking that maybe a diode went out or maybe something on the circuit board. There are no visual signs of anything burnt out. I followed the service manuals troubleshooting flow charts but none of them are for the joysticks specifically. Any help with a possible fix would be very much appreciated. I don't want to call a service technician if I don't need one with there high prices and all. Thanks for any help. Mark