Furuno FELCOM251 - 7. MAINTENANCE AND TROUBLESHOOTING; 7.1 Preventive Maintenance Procedures

7-1
7. MAINTENANCE AND TROUBLE-
SHOOTING
This chapter describes maintenance and troubleshooting procedures to keep the
equipment in good condition and restore normal operation in case of trouble.
7.1 Preventive Maintenance
Check point Action Remedy
Cable (Connector) Check that all cables are
connected tightly and free
of corrosion.
If necessary, connect loosened cables, etc. If a
cable is damaged, replace immediately.
Ground terminal Check that the ground wire
connected to the terminal is
tightly fastened and the ter-
minal is free of dust, dirt
and rust.
Remove dust and dirt from the terminal. Tight-
en the wire if it has loosened.
Communication
Unit
IP Handset
Check that there is no dust
or dirt on the unit.
Clean the unit with a soft, dry cloth. If the unit is
very dirty, clean with water-diluted mild deter-
gent and soft cloth. Wipe unit with clean cloth
after on a wet cloth then with a dry cloth. Do not
use alcohol or paint thinners, as they can re-
move writing and marks on the panel.
IP Handset LCD
screen
Check the screen for dust
and dirt, and that there are
no cracks on the screen.
Wipe the LCD carefully to prevent scratching,
using tissue paper and an LCD cleaner. To re-
move dirt or salt deposits, use an LCD cleaner,
wiping slowly with tissue paper so as to dis-
solve the dirt or salt. Change paper frequently
so the salt or dirt will not scratch the LCD. Do
not use solvents such as thinner, acetone or
benzene for cleaning.
WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
This equipment uses high
voltage that can cause
electrical shock.
0nly qualified persons can
work inside the equipment.
NOTICE
Do not apply paint, anti-corrosive
sealant or contact spray to plastic
parts or equipment coating.
Those items contain products that can
damage plastic parts and equipment
coating.