Furuno DFF1-UHD, Operator'S Manual

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4. MAINTENANCE
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4.2 How to Replace the Fuse
The 5A fuse (Type: FGBO-A 125V 5A PBF, Code No. 000-155-853-10) in the snap-in fuse holder
on the power cable protects the equipment from equipment fault and reverse polarity of the power
supply. If the equipment cannot be powered, the fuse may have blown. Find out the cause for the
blown fuse before replacing it. If the fuse blows again after replacement, contact a FURUNO agent
or dealer for instructions.
4.3 How to Restore Default Settings
This procedure restores all default sounder settings on the NavNet series device. You can restore
all default settings or restore those other than transducer and LAN. This procedure should only be
performed by a suitably qualified FURUNO technician.
1. Disconnect the power and LAN cables from the DFF1-UHD.
2. Turn on the #3 or #4 switch of DIP Switch S3 as applicable.
#3: Restore default settings other than LAN and transducer.
#4: Restore all default settings. Use this when changing transducers.
3. Connect the power cable to the DFF1-UHD, and turn on the power at the ship’s switchboard.
4. The LED blinks (every 0.4 seconds) when default settings are completely restored.
5. Set up the transducer at the NavNet equipment.
WARNING
Use the proper fuse.
Use of a wrong fuse can damage the equip-
ment and cause fire.