Garmin 640 Guida Utente

Marine Mode: Getting Started

1.  From the Home screen, touch 

 > 

.

2.  Touch the waypoint you want to navigate to.
3.  Touch 

 > 

.

4.  Follow the magenta-highlighted line drawn between your current 

location and your destination. Navigate with caution; avoid 

land masses and obstacles while following the line to your 

destination.

•  In addition to navigating directly to your destination, you 

can create a route or allow the device to create a route. For 

•  You can also use the Compass screen to actively navigate to 

your destination by following a pointer on a compass.  

for more information.

1.  While navigating, from the Navigation chart, touch 

. 

2.  Touch 

.

  Note: you can also stop navigation from the Where To? screen.

1.  From any screen, press and quickly release the   

 key.

2.  Touch 

.

3.  Touch and drag the volume slider bar left to decrease the 

volume and right to increase the volume. The box to the right of 

the volume slider bar shows the volume level as a percentage.

To mute the volume, touch the box to the right of the volume slider 

bar. The word Mute replaces the volume percentage.

  Note: The GPSMAP 640 must be connected to an external audio 

source for you to hear audio alerts.

1.  From any screen, press and quickly release the   

 key.

2.  Touch and drag the backlight slider bar left to decrease the 

brightness and right to increase the brightness. The box to the 

right of the backlight slider bar shows the backlight level as a 

percentage.

Touch 

 to change between Day Colors and Night 

Colors. The auto setting automatically

changes the colors 

depending on the time of day.