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17
Maintenance and Troubleshooting
Very little maintenance is required to keep this NAV ONE system in good operating condition.
Keep the unit components clean by wiping with a soft cloth slightly moistened with lens cleaner or isopropyl alcohol.
Do not use solvents or harsh or abrasive cleaners, which could damage the case or scratch the LCD.
Protect the unit from moisture and from being dropped or struck by hard objects to prevent damage.
Do not apply pressure to the LCD screen.
Consult the Cobra web site (www.cobra.com) for the latest software and database versions and compare them to
those stored in your unit to determine if updating is needed. Software and information updates are also available
in DVD ROM format and can be purchased as accessories. NAV ONE needs to be connected to a computer running
a Windows 98 or higher operating system with a DVD drive using a USB-2.0 cable to install the updates.
Maintenance
. . . . . .
Troubleshooting
. .
Problem Possible cause(s) Solution(s)
Display does
not power up.
Power switch is turned off. Turn the unit on with the button on the left side of the unit.
Brightness and contrast are
turned completely down.
Use the controls on the right side of the unit to adjust
the display until it is comfortable to view.
Fuse in unit cigarette lighter
adapter is blown.
Unscrew the adapter tip and inspect the fuse.
Replace fuse if blown.
No voltage is present at cigarette
lighter or other power point.
Troubleshoot vehicle wiring.
NOTE for some powerpoints,
ignition key must be at RUN for the point to be energized.
NAV ONE GPS indicator
will not turn green.
NAV ONE antenna cannot “see” the sky.
Move vehicle to open area and make sure the NAV ONE
antenna has a clear view of the sky.
Push buttons on front
of unit do not work.
Power switch is turned off. Turn the unit on with the button on the left side of the unit.
Vehicle icon or map
does not move after
driving some distance.
NAV ONE is not working properly.
Is NAV ONE GPS signal indicator green? If yes, go to next step.
If no, go to “NAV ONE indicator will not turn green” step.
Geographic area is not fully mapped.
Drive to a main road. If the map shows the road, the system
is working properly, but the area is not fully mapped.