Operator`s manual

Chapter 11-2 Troubleshooting, Service and Specifications
Symptom Check Remedy
No data from replaced
SimNet sensor.
Check connection of Sim-
Net cables.
Perform SimNet system
reset, see section 10.8.
All data is deleted after
turning off the unit and
turning it back on
Check battery lifetime.
Expected lifetime is min.
5 years
Internal battery must be
replaced by authorized
dealer
Radar function:
Echo image on radar
display differs from actual
image
Check if ship’s heading is
incorrect
Set ship’s heading cor-
rectly - see section 10.1
Check if timing is incor-
rect
Set Zero Range correctly
- see section 10.1
Echo images on radar
display are blurred
Check Gain, Sea and Rain
settings
Make adjustments - see
section 3.2.5
Too much noise in radar
display
Check if tuning is incor-
rect
Adjust TUNE - see sec-
tion 3.2.5
Alarm activated in radar
function
Check Alarms in section
3.2.10
Additional data for CX34/44/54 with built-in echosounder function:
Echo picture appears
normal, but no target are
shown or only random
“noise” is seen
Check that the correct
transducer frequency is
selected
Change frequency from
Echo quick menu, press
[ENT], [1] - see section
5.5.
Check that the transducer
connectors are securely
mated with the unit
Correctly mate the con-
nectors to the unit
Check that the receiver
gain is set high enough
Increase the receiver gain
in 5.7 Presentation setup
Check that the range is
correct for the water depth
Adjust the range in 5.7
Presentation setup
Too much noise in the
echo picture
Check that the unit is
properly grounded.
Good ground connection
between echosounder
and connected equipment
should always be observed.