SENSITM
BAR
•'i1F9i1'1bth'
AUTO
j'tU'
Figure
2
SENSITIVITY
When first turned
on,
the X-3 is in the AUTO
SEARCH mode. This means
the
sensitivity
and
range
are
being automatically adjusted
by
the micro-
computer
to find
and lock onto the bottom.
The
sensitivity
can
be left in the automatic
mode, or it can be
manually
adjusted
higher
or
lower to suit conditions.
The
sensitivity
level
settings
are
displayed
by
a horizontal bar at the
top
of the
display.
See
Figure
2.
When the
sensitivity
is at
minimum,
the bar is
very
short As
sensitivity
is
increased,
the bar will travel to the
right
increasing
in
length
corresponding
with
the
higher sensitivity selling.
When the
sensitivity
is
set to
maximum,
the bar will run
completely
across the
top
of the
display
from
left to
right
The AUTO
key
at the
top
middle
position
on the
keyboard
tUrns
auto sen-
sitivity
off and on. Press it
once,
and autO
sensitivity
is turned off. Press it
again,
and
auto
sensitMty
will
be turned ott The auto annunciator is
below the
sensitivity
bar,
and can be
seen when the auto
sensitivity
is on.
5
TROUBLESHOOTING
If the unit works
properly
when
stopped
or at low
speeds,
but loses the
bottom
signal
at
high speed,
the transducer could be
improperly
installed.
Read the transducer installation
manual for the correct
mounting
procedure.
If the
transducer is installed
properly,
then electrical
interference could
be
the cause. Double check the
installation,
particularly
the
power
and
transducer cable
routing.
Make certain that
they
are
away
from the
engine
wiring
or other
wiring harnesses,
especially
the
tachometer
wiring.
Should the
display "freeze'
check to see if
the
top
line of the
display
or
the
digital
bottom
depth
is
flashing.
If it
is,
then the
unit is
working,
but
the
digital
has lost the
bottom
signal,
and it is
trying
to find it The chart
stops
scrolling
when the
digital
loses the bottom. It will
start
moving again
when
the
digital regains
the
bottom. If neither the
top
line of the
display
nor the
digital
bottom
depth
is
flashing
and the chart won't
scroll,
then turn the
unit off and back on
again.
The unit should
begin
working normally.
If it
cannot find the bottom
signal,
and
you
are in shallow
water, (less
than
eight feet)
following
the
directions on
page
24
concerning
shallow water
operation
may help.
If the unit
doesn't turn on when the
ON/OFF
key
is
pressed,
then
check
the fuse or
battery
conections for
tightness
or corrosion.
Fish
signals,
especially
in shallow
water,
do not
always
arch, but
appear
as
irregularly shaped
marks. Fish
arches are most
likely
seen in
40 feet
or
deeper water,
using
a zoom
range (for
example
40 to 60
feet).
Read
the section "Fish
Signals"
on
page
25.
If the unit will not turn
off,
remember that
you
should
press
and HOLD
the
ON/OFF
key
down
until the
display goes
blank. If
you
don't hold the
key
down,
the unit won't
turn off:
On rare occasions
and in certain
installations, electrical interference
could cause the LCG to
display
random
information on the screen or the
keyboard may
not
function
properly. (For example, pressing
the ON/OFF
key
will not turn the unit
oft).
To
restore it to
working order,
first
try
pressing
2nd-O-0.
This should clear the screen. If
this doesn't
work,
simply
unplug
the
power
cable from the back of the
unit
plug
it
back
in,
and
turn it on.
30
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