Filter
Top Products
DISPLAY CONTRAST
The unit's
display
contrast is
adjustable
to suit different
light-
ing
conditions. To
adjust
it,
first
press
the menu
key.
The first
menu
page appears.
Now
press
the
key
next to the "ADJUST
DISPLAY CONTRAST" label.
A screen similar to the at
right
appears.
Now
press
the
key
adjacent
to the left arrow to
decrease the contrast. Press
the
key adjacenttothe rightarrowto
increase it. The
percentage
of contrast
in use
changes
as the arrow
keys
are
pressed.
The bar chart also
gives
a
graphical
indication of the contrast level. You can see the
change
on the
screen
asyou pressthe keys. Afteryou've
made the
adjustment, press
the
CLEAR
key
to erase the menu.
MENU
-
PAGE 2
ADJUSTBACKLIGHT LEVEL
The X-55A has internal
lights
for the
display
and
keyboard.
To
adjust
the
intensity
of
the
lighting,
press
the MENU
key
twice,
then
press
the
key adja-
cent to the "ADJUST BACK
LIGHT LEVEL" label. The
screen shown below
appears.
Now
press
the left arrow
key
to
decrease the
light
level. Press
the
right
arrow
key
to increase
ADJUST BACK
MEW
LIGHT LEUEL
TURN DIGITAL BOX OFF
CONSTRUCT DIGITAL BOX
F
EXIT'
AtE
changes
as the arrow
keys
are
pressed.
The bar chart also
gives
a
graphical
indication
of
the
level.
After
you've
made the
adjustment, press
the
CLEAR
key
to
erase
the
menu.
BACK LIGHT ONIOFF
To turn the back
lighting on, press
the menu
key twice,
then
press
the
key
adjacentto
the "BACK LIGHT' label. This moves the black boxfrom "OFF"
to the "ON"
position.
To turn the
backlights
off,
repeat
the same
steps.
SELECT UNITS OF MEASURE
The X-55A can
display
the wa-
ter
depth
in
feet, fathoms,
or
meters,
surface
watertempera-
ture in
degrees
Fahrenheit or
Celsius, speed
in statute miles
perhour,
kilometers
perhour,
or
knots,
and distance
(log)
in
miles,
kilometers,
or nautical miles.
!PTH:FMM
LJH
iw
To
change
the units of
measure,
press
the
key adjacent
to the
"SELECT UNITS OF MEASURE" label. The screen shown at
right ap-
pears.
The black
box on each
line shows the
unit of measure
currently
in
use. In the screen shown
below,
the units of measure are in feet for the
depth, temperature
in
degrees Fahrenheit,
and both
speed
and
log
are in
statute miles
per
hour. Press the
key adjacent
to the
unit that
you
wish to
change.
For
example, press
the
key
next to the DEPTH label two times to
switch from feet
to meters. This moves the black box two times from the
"Fl"' to the "M".
When
you
have
the units
of measure set as
desired,
press
the
key
next to the "EXIT" label.
CLEAR DISTANCE LOG
The X-55A starts
counting
distance as soon as the X-55A is turned on. To
reset the distance
log
to
zero, press
the MENU
key
until the "CLEAR
DISTANCE LOG" label
appears,
then
press
the
key adjacent
to that label.
MENU-PAGE 5
ADJUST CHART
SURFACE CLARITY
The
markings
extending
downward from the zero line on the chart are
called "surface clutter." These
markings
are caused
by
wave
action,
boat
wakes, temperature inversion,
and other natural causes.
The Surface
Clarity
Control
(5CC)
reduces or eliminates
surface clutter
signals
from
the
display.
SCC varies the
sensi-
tivity
of the
receiver,
decreas-
ing
it near the surface and
gradually increasing
it as the
depth
increases. The maximum
depth
that SCC will affect is
JUSTHART
SURFACE CLARITY
tEDHIGL
rUST
LEUEL
OF CHART ASP
IEJJrnu HIGH
PIGES
MORE
it. The
percentage
of back
light
in use
24 29
PDF compression, OCR, web-optimization with CVISION's PdfCompressor