Maintenance, Troubleshooting; Maintenance - Furuno GP-39 Operator's Manual

8. MAINTENANCE, TROUBLE-
SHOOTING
8.1

Maintenance

Regular maintenance is important to maintain performance. Check the following
points to help maintain performance.
• Check that connectors on the rear panel are firmly tightened and free of rust.
• Check that the ground system is free of rust and the ground wire is tightly fastened.
• Check that battery terminals are clean and free of rust.
• Dust or dirt may be removed from the cabinet with soft cloth. Water-diluted mild de-
tergent may be used if desired. DO NOT use chemical cleaners to clean the display
unit; they may remove paint and markings.
• Wipe the LCD carefully to prevent scratching, using tissue paper and a soft cloth.
To remove dirt or salt, use a damp soft cloth, wiping slowly so as to dissolve the dirt
or salt. Rinse the cloth regularly so the dirt or salt will not scratch the LCD. Do not
use solvents such as thinner, acetone or benzene for cleaning. Also, do not use
degreaser or antifog solution, as they can strip the coating from the LCD.
Life of LCD
The life of the LCD is approximately 30,000 hours. The actual number of hours de-
pends on ambient temperature and humidity. When the brilliance cannot be raised suf-
ficiently, ask your dealer about replacement.
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.
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