Furuno GP-3700F, Operator'S Manual

Page: 192 / 224

13. MAINTENANCE, TROUBLESHOOTING
13-2
13.2 Replacement of Fuse
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
the correct fuse. Using the wrong fuse will damage the unit and void the warranty.
13.3 Consumable Parts
Consumable parts are used in this equipment. Contact your dealer to replace the part
before its expected expiration.
Life of trackball
The life of the trackball is approximately 21,000 hours at the temperature of 40°C. If
the trackball (cursor) moves abnormally, ask your dealer about replacement of the
trackball. See section 13.4 about trackball maintenance.
13.4 Trackball Maintenance
If the cursor moves abnormally, clean the trackball and inside the trackball housing (in-
cluding the lens) as shown below:
1. Turn the retaining ring on the trackball module in the direction of the arrows (see
figure below) to unlock it, then remove the retaining ring.
2. Use cellophane tape to remove the trackball from the trackball housing. Place the
trackball and the retaining ring on a clean, soft cloth laid on a flat surface.
Name Type Code No.
Glass Tube Fuse FGBO-A 125V 5A PBF 000-155-853-10
Use the proper fuse.
Use of the wrong fuse can cause fire
or electrical shock.
WARNING
RCU-030 Display unit
Retaining
ring
Trackball