Lowrance electronic X-3 II

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

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

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.

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

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"

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.

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