Furuno DFF3-UHD, Installation Manual

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6
Operation Check
For NavNet TZtouch3 and NavNet TZtouch2, the DFF3-UHD is powered on/off from the ship’s switchboard.
The STATUS LED and ERROR LED on the bottom of the DFF3-UHD lights or blinks according to equipment
state, as described in the table below.
LED Position
Troubleshooting
The table below provides basic troubleshooting procedures which the user may follow to restore normal op-
eration. If you cannot restore normal operation, do not check inside unit. Have a FURUNO dealer check the
equipment
.
LED Type STATUS ERROR Meaning
LED State
Blinking every two seconds
Off
Normal operation
Blinking every 0.4 seconds Off Transducer settings at NavNet
device not properly set.
Off
Lit continuously
Communication error with
NavNet device or internal fan
error (see “Troubleshooting”
about how to solve the prob-
lem).
Problem Reason
Cannot turn on power. • The power cable is disconnected or damaged. Check the
power cable and if it damaged, replace it.
• Check the ship’s mains and check if the switchboard is
turned on.
• Check the fuse on the power cable. If the fuse has blown,
find the cause then replace it.
No echo appears but fixed
range scale appears. • The sensor cable is disconnected or damaged.
Check the cable and reconnect or replace it as necessary.
Sensitivity is low. • Gain setting is too low. Raise the gain.
• Marine life is adhering to the transducer face. Clean the
transducer face.
• Vessel is in heavily sedimented water.
ERROR LED turns on. • Disconnect the Power cable and LAN cable.
• Connect the Power cable and LAN cable.
• Contact your local dealer for advice when the problem
cannot be solved.
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