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8. MAINTENANCE, TROUBLESHOOTING
8-4
8.4 Fuse Replacement
The fuses in the processor and transceiver units protect them from overvoltage, equip-
ment fault and reverse polarity of the ship's mains. If the power cannot be applied, first
check the fuse for the processor unit. The fuse for the transceiver unit is inside the unit;
have a qualified technician check the fuse. If a fuse blows after replacement, or the
power cannot be turned in spite of normal fuse, contact your dealer for advice.
8.5 Fan Replacement
The processor unit has a fan, and its life is about 25,000 hours, in ambient tempera-
ture of 50°C.
If the fan stops, because the area around the power supply is too hot, the power volt-
age may fluctuate. Contact a FURUNO agent or dealer to request replacement of the
fan.
Unit Fuse Type Code No.
Processor Unit FGBO-A 2A AC125V 000-549-062
Transceiver Unit
(100 VAC spec.)
FGMB 2A 250V 000-122-000
FGBO 7A AC125V 000-549-013
Transceiver Unit
(220 VAC spec.)
FGMB 2A 250V 000-122-000
FGBO 4A AC250V 000-546-707
Type Code No.
Fan 109-180 000-105-416
WARNING
WARNING
Use the proper fuse.
Use of a wrong fuse can result in damage
to the equipment.