Garmin 521s 用户手册

Getting Started 

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 up, down, left, or right to move through menus, 

highlight fields, and enter data.
MaRK—Press to mark a waypoint.
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.

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.
For more information about GPS, visit the Garmin Web site at