5. MAINTENANCE, TROUBLESHOOTING
5-2
LCD
Dust and dirt may be removed from the units with a soft cloth. The LCD will in time
accumulate a layer of dust that can dim the picture. Wipe the LCD carefully to prevent
scratching, using tissue paper and an LCD cleaner. To remove stubborn dirt, use an
LCD cleaner, wiping slowly with tissue paper so as to dissolve the dirt. Change paper
frequently so the dirt will not scratch the surface of LCD. Do not use chemical-based
cleaners for cleaning. They can remove paint and markings.
Ground terminal on monitor and processor units
Tighten or replace as necessary.
Connectors on monitor and processor units
Tighten if the connectors are loosened.
Exposed nuts and bolts on the antenna unit
Exposed bolts and nuts are subject to corrosion. Further, they may loosen by vibra-
tion. Check that bolts and nuts are securely fastened. Refasten if necessary. If cor-
roded, and coat with anticorrosive sealant.
Antenna radiator
Dust, dirt and salt deposits on the radiator cause signal attenuation, resulting in loss
of sensitivity. Wipe radiator with a freshwater-moistened cloth. The radiator is made of
fiber-glass reinforced plastic. Therefore, do not used gasoline, benzene and the like
to clean the radiator. If the radiator is iced, use a wooden or plastic headed hammer
to remove the ice.
5.2
Parts Replacement
Fuse
The fuse in the processor unit protects the equipment from overcurrent and equipment
fault. If the fuse blows, find the cause before you replace the fuse. Use the correct
fuse. A wrong fuse can damage the equipment.
Unit
Type
Code No.
Remarks
Processor Unit
FGBO 125V 10A PBF
000-155-826-10
24 VDC
WARNING
Use the correct fuse.
A wrong fuse can damage the equipment
and cause fire.
