JRC JMR-5406-X Instruction Manual page 15

When cleaning the display screen, do not wipe it too strongly with a dry cloth.
Also, do not use gasoline or thinner to clean the screen. Failure will result in
damage to the screen surface.
Do not change Initial Level/Area Offset unless absolutely necessary.
Incorrect adjustment will result in deletion of nearby target images and thus
collisions may occur resulting in death or serious injuries.
Confirm computer virus does not exist in USB flash memory beforehand
when reading and writing of the file by using USB flash memory.
Influences other equipment when the display unit is infected with the virus,
and it may cause a breakdown.
Do not remove USB flash memory while the access lamp (in USB flash drive)
is flashing.
Data may be damaged when the USB flash memory is inserted or removed
while accessing it, and it may cause a breakdown.
Confirm computer virus does not exist in external storage media beforehand
when reading and writing of the file by using external storage media.
Influences other equipment when the display unit is infected with the virus,
and it may cause a breakdown.
In case water or a metal object gets inside the equipment, turn off the power
immediately, unplug the power supply cable from an electric outlet, and
contact our head office, or a nearby branch or local office to request
servicing.
Keeping the equipment in operation under such condition may cause a fire,
an electric shock or a malfunction.
In case you find smoke, unusual odor or extreme high heat coming from the
equipment, turn off the power immediately, unplug the power supply cable
from an electric outlet, and contact our head office, or a nearby branch or
local office to request servicing.
Keeping the equipment in operation under such condition may cause a fire or
an electric shock.
Do not use the offset function during navigation.
If the equipment is used with the offset value entered as the own ship
position (deviated from the actual position), accidents may result.
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