Garmin MX20 - Manual (Page 21)


Getting Started
Basic Operation
Use the following items to get a basic feel for the operation of the MX20. The basic steps for using any of the
separate functions of the MX20 are:
• Turn the power on.
• Adjust the brightness or set it to automatic.
• Check that all tests pass on the Start Up screen.
• Press the FN key to view available functions. Each press of the FN key will step through the lists of
functions.
• Press the key below the function label to select the desired function.
• Confirm or enter the current barometric pressure
• Press the MENU/ENtER key to display available options.
• Press the MENU ItEM key next to the displayed option to choose desired capabilities. Some options
use multiple key presses for different states for the option. Press the MENU/ENtER key again to
extinguish the option display.
• Refer to the Detailed Operation section for more details on each function.
Brightness
Rotary Knob Model
With the Power knob pulled out, turn the knob in each direction to adjust the display brightness manually.
Manual brightness mode may be selected to adjust the display for difficult lighting conditions. Push the knob
in, and the brightness is adjusted automatically according to the ambient light. When the brightness is set
automatically, the display will not dim below a pre-defined level.
Rocker Switch Model
Press the “-” and “+” rocker switches at the same time briefly to set the brightness automatically according to
ambient light by the photo sensor. Press the “-” and “+” rocker switches alone to adjust the display brightness
manually. When the brightness is set automatically, the display will not dim below a pre-defined level.
Power On
Turn the power rotary knob clockwise past the
detent to turn the power on OR press the “+”
rocker switch to turn the power on. The MX20
will progress through a series of startup screens.
The final startup screen shows System Informa-
tion and the results of the Self-Test.
Pre-Heat Mode
MX20s with the rotary power/dimmer knob will
go into a pre-heat mode for a short period of
time on start-up. During the pre-heat mode, the
display will remain dark. The pre-heat mode is
designed to extend the life of the LCD backlight.
Basic Operation