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Power
Connections
The X-20A
operates
from a 12
volt
battery system.
Attach the
power
cable to an
accessory
or
power
buss. If
you
have
problems
with
electrical
interference,
then attach the cable
directly
to the
battery.
Electrical interference shows as random dots on the
display
whenever
the boat's
engine
or an
accessory
is on.
The
power
cable
has
two
wires,
red is the
positive
lead and black is
negative
or
ground.
Attach the in-line fuse holder to the red wire on the
power
cable with the
crimp
connector. The
other end of the fuse holder
attaches to the
battery
or
accessory
buss.
If
the cable is not
long
enough, splice ordinary
#18
gauge
wire onto it. Be certain
that the fuse
holder is as close to the
power
source
(battery
or
accessory buss)
as
possible.
This
protects
the
power
cable and
your
unit
in
the event of a
short. Use a
3-amp
fuse.
This unit has reverse
polarity protection.
No
damage
will occur if the
power
wires are reversed.
(However,
the unit will not work until the
wires are attached
correctly.)
IMPORTANT
SERVICE
INFORMATION!
If
your
unit
is
not
working,
or if
you
need technical
help, please
use the
following
troubleshooting
section before
contacting
a service center or the
factory
cus-
tonierservice
department.
It
maysave you
the trouble of
returning yourunit.
See
the How To
Obtain Service section on
page
26 if
you
need service.
SONAR TROUBLESHOOTING
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. Measurethe
batteryvoltageatthe
unit'spowerconnector.
ltshould
be
atleast
11 volts. It it
isn't,
the
wiring
to the unit is
defective,
the
batteryterminals orwiring
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
withthe sonar unit.
Re-routing
the
powerand
transducercables
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 for
breaks, cuts,
or
pinched
wires.
3. Check both the transducer and
power
connectors,
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
afilmto form on
thetransducer, reducing
its effectiveness, If the transducer is mounted inside the
hull,
be sure it is
shooting through only
one
layer
of
fiberglass
and that it is
securely
bonded to the
hull. Do NOT use RN silicone rubber adhesive or Marinete,e.
RED
FUSE
HOLDER
2
23
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