Maintenance, Troubleshooting; Maintenance - Furuno 1715 Operator's Manual

2. MAINTENANCE, TROUBLESHOOTING

2.1 Maintenance

Regular maintenance is important for good performance. A maintenance program should be
established and should at least include the items listed in the table below.
Period Item
Fixing bolts for
antenna unit
Antenna unit
cleanliness
Antenna unit
cover
3 to 6
months
Display unit
case, LCD
6 months Display unit
to 1 year connectors
WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
Only qualified personnel
should work inside the
equipment.
Maintenance program
Check point
Check for corrosion and if
tightly fastened.
Check for foreign material.
(Foreign material on the
antenna unit can cause a
considerable drop in
sensitivity.)
Check for cracks. Permanent
damage to the unit's circuitry
will result if water leaks inside.
The display case and LCD will,
in time, accumulate a coating
of dust, and dust on the LCD
tends to dim the picture.
Check for tight connection and
corrosion.
18
Action
Replace corroded bolts. Coat new
bolts with anticorrosive sealant.
Clean the antenna unit with a
freshwater-moistened cloth.
Alcohol may be used. Do not use
commercial cleaners to clean the
antenna unit; they can remove
paint and markings or deform the
equipment.
If a crack is found, it should be
temporarily repaired by using a
small amount of sealing compound
or adhesive. The unit should then
be brought to your dealer for
permanent repairs.
Wipe the LCD carefully to prevent
scratching, using tissue paper and
an LCD cleaner. To remove dirt or
salt deposits, use an LCD cleaner,
wiping slowly with tissue paper so
as to dissolve the dirt or salt.
Change paper frequently so the
salt or dirt will not scratch the LCD.
Do not use commercial cleaners to
clean the display unit; they can
remove paint and markings or
deform the equipment.
If corroded, ask your dealer about
replacement.