Friend told me about a strange "failure mode" common to both manufacturers, was looking to get some advice. The main setup is a PFD/MFD with a TCW avionics backup battery. The screens are setup to use a dimmer knob to control brightness. Not sure what the dynon is using, but the g3x is wired through the gad27 for lighting control.
Failure scenario: power failure at night. you lose the gad27 lighting control and the screens revert to the ambient sensor but are still being powered by the backup TCW battery. We tested in a dark hanger and they dim to 3% and are barely readable even in the dark. Is there a setting somewhere to set minimum screen brightness when using the sensor?
The initial emergency response we thought of was to find your phone, turn on the flashlight and shine it at the sensor, or Menu-Menu-Setup-Display-Manual, then Increase brightness. During an emergency on a screen that's super dark, that's a lot of button presses during, for me, a night time engine out scenario. Discuss....
Failure scenario: power failure at night. you lose the gad27 lighting control and the screens revert to the ambient sensor but are still being powered by the backup TCW battery. We tested in a dark hanger and they dim to 3% and are barely readable even in the dark. Is there a setting somewhere to set minimum screen brightness when using the sensor?
The initial emergency response we thought of was to find your phone, turn on the flashlight and shine it at the sensor, or Menu-Menu-Setup-Display-Manual, then Increase brightness. During an emergency on a screen that's super dark, that's a lot of button presses during, for me, a night time engine out scenario. Discuss....
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