My C330 will power itself off and right back on after a few minutes of use, with the power cord attached or not. It will also power itself on, without being touched when the power cord is attached. Really need a schematic for it. I have avionics gurus who can help me if I had that. Thanks, T. Brady
The first problem with it powering itself off is a battery problem. Your battery is not hold a charge.
The second problem with it powering itself on with the power cord attached is a power cord issue. The unit is suppose to automatically power itself on if a power cord is attached to it. This is Garmin way of turning the unit on when you start your car. Most auto cigarette lighter will cut power if the ignition is off, and restore power when the ignition is on.
Garmin uses this to turn the unit on and off. If the unit was being powered by the the cigarette lighter then it say unit is shutting down in 20 seconds after the power is cut.
Posted on Jan 11, 2008
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I have the same problem. Did you get a resolution?
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