IMPORTANT
TROUBLESHOOTING INFORMATION!
If your unit is not working, Or if
you need technical help, please
use the
following
troubleshooting section before contacting the
factory
customer
service
department. It may
save
you
the trouble of retqrning your unit.
Unit won't turn on:
1. Check the
power
cable's connection at the unit. Also check
the
wiring.
2. Make certain the power cable is
wired
properly. The red wire
connects
to the
positive battery terminal, black to negative or
ground.
3. Check the fuse.
4. Measure the
battery voltage at the
unit's
power
connector. It should be
at least 11 volts. If it isn't, the wiring to the unit is defective, the
battery
terminals or wiring on the terminals are corroded, or the
battery
needs
charging.
Unit freezes, locks up, or
operates
erratically:
1. Electrical noise
from the boat's motor, trolling motor, or an accessory
may
be
interfering with the sonar
unit.
Re-routing
the pwerand
transducer
cables
away
from
other electrical wiring on the boat
may help. Route
the
sonar unit's
power
cable
directly
to the
battery
instead of through a fuse
block or ignition switch
2. Inspect
the transducer
cable f&
breaks, cuts,
or pinched wires.
3. Checkboth the
transducerand powerconnectors. Make
certain both are
securely plugged in to the unit.
Weak bottom
echo,
digital readings erratic,
or no fish signals:
1. Make certain transducer is
pointing straight down. Clean
the face of the
transducer. Oil, dirt, and fuel can cause a film to form
on the
transducer,
reducing its
effectiveness. If the
transducer is mounted inside the
hull, be
sure it is
shootingthrough onlyone
layerof fiberglass andthat itis
securely
bonded to the
hull. Do NOT use
RTV silicone
rubberadhesive orMarinetex
N 36*08,8801
U 95*50.529
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GROUP "Q"
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GROUP "H"

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2. Electrical noise from
the boat's motor can
interfere with the sonar.
This
causes the sonar to automatically increase its Discrimination or noise
rejection feature. This
can cause the unit to
eliminate weaker
signals
such
as fish or even
structure from the display.
FT 38.'l
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65.5°F
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55,5°F J S UI!
—
3,7MPH tRIP 944
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BRG 203°
coo 73°
11.2M1
GROUP "V' GROUP "W"
38 41
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