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14.4 Sonar / DownVision troubleshooting
Problems with the Sonar or DownVision and their possible causes and solutions are described here.
Problem Possible causes Possible solutions
Unit power supply fault. Check the unit power supply and cables.Sonar / DownVision data not
available.
Sonar disabled. Select Enable Sonar from the Shortcuts page.
Sensitivity settings may be
inappropriate for present
conditions.
Check the Sensitivity settings.
Unit power supply fault Check the voltage from the power supply, if this is too low
it can affect the transmitting power of the unit.
Unit cable fault. Ensure that the power / transducer cable is properly
connected and free from damage.
Check that the transducer has been installed in accordance
with the transducer location requirements (refer to the
Location and Mounting section of the manual).
Transducer location
The presence of thin lines at a constant depth may be a
reection of structures on the bottom of the vessel check
that the transducer has been installed in accordance with
the transducer location requirements (refer to the Location
and Mounting section of the manual).
Check that the transducer is mounted correctly and is
clean.
Transducer fault
Check that the transducer hasn't kicked up due to hitting
an object.
High vessel speed
Turbulence around the transducer may be confusing the
unit.
Problematic depth readings or
on-screen image.
Scroll speed set to zero
Adjust scroll speed
Troubleshooting
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