Furuno 1722, 1753C, 1742, 1752 Replacement of Fuse, Replacement of Battery, Parts Name Type Code No

7. MAINTENANCE, TROUBLESHOOTING

7.2Replacement 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.

CAUTION

Use the proper fuse.

Use of a wrong fuse can cause fire or damage the equipment.

7.3Replacement 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 () appears at the top of the display. When the icon appears, contact your dealer to request replacement of the battery.

Parts Name	Type	Code No.
Lithium battery	CR2450-F2 ST2L	000-144-941

7-2