Troubleshooting - Furuno DRS4D-NXT Installation Manual

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3. MAINTENANCE, TROUBLE- SHOOTING
3.3

Troubleshooting

The table below provides simple troubleshooting procedures to restore normal opera-
tion. If you cannot restore normal operation, contact your dealer for advice.
The radar type does not appear
on the multi function display de-
vice.
The radar type appears on the
multi function display device, but
the radar display does not appear
or transmission does not start.
The radar appears on the multi
function display device, but disap-
pears when the transmission
started or continue rebooting.
Transmission starts, but echoes
do not appear or weak echoes oc-
cur.
Too much interference.
Marks and characters appear on
the display, but echoes do not ap-
pear.
You changed the range, but the
radar picture does not change.
Signal strength is too low.
Trouble
Remedy
• Check if the Cable Assembly is connected to the
power source and the power source is on.
• Check the power cable for damage.
• Check if the fuse has blown.
• Check the voltage of ship's main.
• Check the software version of the multi function
display device.
Check the software version of multi function display
device.
Check the power voltage is sufficient.
Check the settings of GAIN/SEA/RAIN.
• Turn the interference rejector on.
• Turn the transmission on/off.
• Change the transmission channel.
Check that the Cable Assembly is fastened.
• Try to zoom the radar display in or out.
• Turn the power off and on.
Have a technician check the radar.
14

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