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47
ous times of the day. The default setting is 50 percent.
To adjust the contrast, press
MENU DOWN
until the
S
YSTEM
menu ap-
pears, press
UP ARROW
, and the
C
ONTRAST
menu appears. To decrease
screen contrast, press the
DOWN ARROW
key. Press the
UP ARROW
key
to increase screen contrast. The bar graph in the Contrast menu box
shows a graph of the contrast. The screen will also show the effects of
the change. If you reach the maximum or minimum level, a tone sounds
alerting you to the limits. Press the
PWR
key to clear the menu.
Display Contrast menu.
DEPTH UNITS OF MEASURE
This unit can show the depth in feet, fathoms or meters.
To change the depth units of measure, press
MENU DOWN
until the
S
YSTEM
menu appears, press
UP ARROW
, then press
MENU
until the
D
EPTH
menu appears. Use the arrow keys to select the desired unit of
measure, then press the
PWR
key to clear the menu.
Depth menu controls the unit of measure used to show depth.