Replacement Of Fuse; Replacement Of Battery - Furuno NAVNET 1722 Operator's Manual

7. MAINTENANCE, TROUBLESHOOTING
7.2

Replacement of Fuse

The fuse on the power cable protects the equipment from reverse polarity of the
ship's mains and equipment fault. If the fuse blows, find out the cause before
replacing it. Use the correct fuse (10A for 12 V, 5A for 24 V). Using the wrong
fuse will damage the equipment and void the warranty.
7.3

Replacement of Battery

A battery fitted on a circuit board inside the display unit preserves data when the
equipment is turned off, and its life is about three years. When its voltage is low
the battery icon (
contact your dealer to request replacement of the battery.
Parts Name
Lithium battery
7-2
CAUTION
Use the proper fuse.
Use of a wrong fuse can cause fire or
damage the equipment.
) appears at the top of the display. When the icon appears,
Type
CR2450-F2 ST2L 000-144-941
Code No.