Maintenance & troubleshooting, 1 maintenance, Warning – Furuno GP-1650WDF User Manual
Page 93

13-1
13. MAINTENANCE &
TROUBLESHOOTING
13.1 Maintenance
Regular maintenance is essential for good 
performance. A maintenance program should 
be established and should at least include 
the items listed in below. 
Do not open the equipment.
Hazardous voltage which can
cause electrical shock, burn or 
serious injury exists inside the 
equipment. Only qualified 
personnel should work inside 
the equipment.
WARNING
Recommended maintenance program
Item Check
point
Remedy
Antenna
Check for loosened and corroded bolts.
Tighten loosened bolts. Replace 
heavily corroded bolts. 
Check connection point for 
watertightness. 
Check connector for tightness and 
corrosion. 
Antenna cable
Check cables for damage.
Replace damaged pats.
Display unit connectors
Check for tight connection.
Tighten loosened connectors.
Ground terminal
Check for tight connection and corrosion. Clean or replace as necessary.
Display unit
Dust and foreign material on the display 
unit. 
Dust may be removed with a soft cloth, 
if necessary anti-static cleaner may be 
used. Never use chemical solvents to 
clean the display; they can remove 
paint and markings. 
LCD
Dust and foreign material on the screen.
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. 
Transducer
Check the transducer face yearly for 
marine life, which can reduce sensitivity. 
