I have a HPI 309 GT speed controller that has sat idle for about 10 years. It worked fine when the Savage went into storage but would not work when we started using the car again. The indicator lights function the way the book says they should, the receiver seems OK, the steering servo works fine if connected to either channel, the internal components seem fine, nothing burned or blackened, no bad smells. Motors work fine if connected directly to a battery, Both seem to have similar internal resistance. Battery voltages are both within .05V of each other and do not vary when the throttle is moved. There is no voltage on the output side of the controller apart from electrical "noise" picked up by the wires.
My silly question is: Does this speed controller have some sort of internal memory that was pre-installed during manufacture and has now just faded away, sort of like electronic Alzheimer's disease?
Obviously I need a new controller but my inquisitive mind needs to know why the old one failed while it sat in a box doing nothing.
My silly question is: Does this speed controller have some sort of internal memory that was pre-installed during manufacture and has now just faded away, sort of like electronic Alzheimer's disease?
Obviously I need a new controller but my inquisitive mind needs to know why the old one failed while it sat in a box doing nothing.