Furuno GP-3500F - Manual (Page 220)

12. MAINTENANCE & TROUBLESHOOTING
12-2
12.2 Replacement of Fuse
Use the correct fuse.
Use of a wrong fuse can cause fire or
damage the equipment.
CAUTION
The fuse on the power cable protects the system from reverse polarity of the
ship’s mains and equipment fault. If the fuse blows, find the cause before
replacing it. Use only a 3 A fuse. Using the wrong fuse will damage the unit and
void the warranty.
Name Type Code No.
Fuse FGBO-A 3A AC125V 000-549-063
12.3 Replacement of Battery
A battery installed on the circuit board inside display unit preserves data when
the power is turned off. The life of the battery is about three years. When the
battery voltage is low the battery icon (
) appears on the display. When this
happens, contact your dealer to request replacement of the battery.
Name Type Code No.
BATT (L1) CR2450-F2ST2L 000-144-941
Note: Save data into the memory card or internal memory before replacing the
battery.
Replace teh battery with correct polarity.
Wrong polarity may cause an explosion.
WARNING