I'm having a problem with the electrical parts of my shockwave nitro buggy. I've checked all the batteries and all are fully charged but when I flip the on switch nothing turns on. The servos don't move at all, they don,t respond to the controller, and its as if there is no power going through. The servos are plugged into the correct port. I need to know if either the switch is bad, or the receiver. Thank You for your help.