Garmin RS-232 GPS Receiver User Manual


 
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3.3 BRIGHTNESS CONTROL
The display brightness is controlled by the BRIGHT/DIM toggle
switch. Moving the BRIGHT/DIM toggle switch to BRIGHT
repeatedly will make the display brighter; moving it to DIM
repeatedly will dim the display. The default brightness after power
up is full brightness.
4. EMERGENCY PROCEDURES
In case of electrical power failure in-flight, the instrument will
cease to function. After restoring power, the system will resume
accurate fuel flow reading, but time remaining, fuel used, fuel
remaining, fuel reserve, fuel to destination, and all warnings will
not be accurate unless the duration of power failure is known, and
fuel consumption during the electric power failure is calculated, and
subtracted from fuel remaining.