GPSMAP 400/500 Series Owner’s Manual
5
Getting Started
Using the Keypad
POWER/
BACKLIGHT
MENU
ROCKER
SELECT
HOME
RANGE (-/+)
MARK
POwER/baCKLigHT
—Press and hold to turn the unit on or off.
Press and release to adjust the backlight and day and night modes.
RaNgE (-/+)
—Press to adjust the range of the sonar. Press to zoom
in or out on a chart. Press to page up or down on lists.
ROCKER
—Press to adjust the range of the sonar, to zoom in or out
on a chart, to page up or down on lists, to scroll the map, or to adjust
the backlight level.
MaRK
—Press to mark a waypoint at your current location.
SELECT
—Press to select highlighted items.
HOME
—Press to return to the Home screen.
MENU
—Press to access additional settings and configuration
options. Press to return to the previous screen when indicated.
Acquiring GPS Satellite Signals
When you turn on the unit, the GPS receiver must collect satellite
data and establish the 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 displays a flashing
question mark.
