Furuno 1763c ユーザーズマニュアル

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 7-1
7. MAINTENANCE, 
TROUBLESHOOTING 
This chapter provides information necessary for keeping your unit in good 
working order and remedying simple problems. 
WARNING
Do not open the equipment.
Hazardous voltage which can
cause electrical shock exists
inside the equipment. Only 
qualified personnel should 
work inside the equipment.
 
7.1 Preventive 
Maintenance 
Regular maintenance is important for optimum performance. A maintenance 
schedule should be established and should at least include the items below. 
Maintenance program 
Item Check 
point 
Remedy 
Display unit 
connectors 
Check for tight connection. 
Tighten loosened connectors. 
LCD 
The LCD will, in time, accumulate a 
coating of dust which tends to dim the 
picture 
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 solvents 
such as thinner, acetone or benzene 
for cleaning. 
Ground terminal 
Check for tight connection and 
corrosion. 
Clean or replace ground wire as 
necessary.