The Full Screen is the main screen for both dual beam
and dual frequency transducers.
On the Home screen, highlight Full Screen, and press
SELECT.
Depth
Temp
Speed
Suspended
targets
Range
Bottom
Transducer
mode
Changing the Display SettingsUnderstanding the Full Screen
You can switch between Day and Night modes and
brighten or darken the backlight.
To change the display settings, on the Congure screen,
highlight Display, and press SELECT.
OR
Press and release the POWER key.
Press left or
right on the
Press left or
right on the
ROCKER
to switch
between Day
and Night
mode.
ROCKER to
adjust the
backlight
HOME—press to
return to the Home
screen.
Using the Fishnder 400C Keypad
POWER/BACKLIGHT—press
and hold to turn the unit on or
off. Press and release to adjust the
backlight and day/night modes.
RANGE(+/-) —press to adjust
the range of the sonar.
ROCKER—press up, down, left,
or right to move through menus,
highlight elds, and enter data.
SELECT—press to select
highlighted items and conrm
on-screen messages.
MENU—press to view additional
settings and conguration
options; press to return to the
previous screen when indicated.
Fishfinder 400C
quick reference guide
May 2007 Part Number 190-00757-01 Rev. A Printed in Taiwan
Understanding the Split Freq ScreenUnderstanding the Flasher ScreenUnderstanding the Split Zoom Screen
Tips and Shortcuts
Use the Split Zoom screen to view the full sonar data
from the graph as well as a zoomed in portion on the
same screen.
On the Home screen, highlight Split Zoom, and press
SELECT.
The Flasher screen (dual beam transducer only) provides
an almost instantaneous return of what is below your
boat. The depth scale is organized as a ring that starts
at the top, or 12:00, and progresses clockwise. Sonar
information ashes on the ring when it is received at the
depth indicated on the inside ring. Like the regular graph,
The colors indicate different strengths of the sonar return.
Depth, temperature,
and speed
On the Home screen, highlight Flasher, and press
SELECT.
Zoomed
depth scale
Zoom
window
Transducer mode
Range
Flasher ring
Depth
Use the Split Freq screen (dual frequency transducer
only) to view both the 50kHz and 200kHz frequencies on
the same screen.
On the Home screen, highlight Split Freq, and press
SELECT.
Press HOME from any screen to return to the Home
screen.
Press MENU from any of the main screens to access
advanced settings.
Press and release the POWER key to adjust the
display settings.
Depth,
temperature,
and speed
Range
Please visit www.garmin.com for additional documentation
Frequencies
and information.