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GPSMAP
®
4000/5000 Series Owner’s Manual 3
Getting Started
Getting
Started
Minimum Safe Depth—select the minimum safe depth for your boat. Refer to your boat
specications for more information.
Minimum Overhead Clearance—select the minimum overhead clearance for your boat. Refer to
your boat specications for more information.
Adjusting the Backlight
1. Press and release the Power key.
2. Select Backlight.
To allow the unit to automatically adjust the backlight based on ambient light, select Auto.
To manually adjust the backlight,
either select Up or Down, use the
ROCKER (GPSMAP 4000 series),
or touch and drag the brightness
bar (GPSMAP 5000 series).
To adjust the color mode:
1. Press and release the Power key.
2. Select Color Mode.
3. Select Day Colors, Night Colors, or Auto.
Acquiring GPS Satellite Signals
When you turn the unit on, the GPS receiver must collect satellite data and establish its current
location. When the unit acquires satellite signals, the signal strength bars at the top of the Home
screen are green . When the unit loses satellite signals, the green bars disappear and the
position icon shows a ashing question mark.
For more information about GPS, visit the Garmin
®
Web site at www.garmin.com/aboutGPS.