Garmin colorado 400c User Manual

Fishfinder 400C

quick reference guide

—press 

and hold to turn the unit on or 

off. Press and release to adjust the 

backlight and day/night modes.

—press to adjust 

the range of the sonar.

—press up, down, left, 

or right to move through menus, 

highlight fields, and enter data.

—press to select 

highlighted items and confirm 

on-screen messages.

—press to view additional 

settings and configuration 

options; press to return to the 

previous screen when indicated.

—press to 

return to the Home 

screen.

May 2007 

Part Number 190-00757-01 Rev. A 

Printed in Taiwan

The Full Screen is the main screen for both dual beam 

and dual frequency transducers. 
On the Home screen, highlight 

, and press 

.

You can switch between Day and Night modes and 

brighten or darken the backlight.
To change the display settings, on the Configure screen, 

highlight 

, and press 

.

OR
Press and release the   

 key.