Turning On The Astro 220; Adjusting Backlight - Garmin Astro 220 Owner's Manual

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Turning on the Astro 220

The first time you turn on the Astro 220, a message
appears followed by a prompt. Thereafter, when the
Astro 220 is turned on, the Introduction page appears,
followed by the Dog Tracker page.
To turn the Astro 220 on and off:
1. Press and hold the POWER key, a tone sounds
and the Introduction page appears, followed by the
Dog Tracker page.
2. To turn off, press and hold the POWER key again.
Introduction Page

Dog Tracker Page
Adjusting the Astro 220 Backlight
You may want to adjust the backlight to see the display
better.
To adjust the backlight level:
1. Press and quickly release the POWER key.
2. Press the POWER key repeatedly to cycle through
the brightness levels or use the ROCKER up/down
arrows.
3. Press ENTER or BACK to close the backlight
adjustment window.
Backlight Adjustment Slider
See page 55 for information on changing the display
colors and backlight time out.
Astro Dog Tracking System Owner's Manual