30
C:\WINNT\Profiles\Administrator\Desktop\NAV-
U\2695873121NVU81U\01US02NAV-U.fm
masterpage:Right
NV-U81T/U81
2-695-873-
12
(1)
Resetting the unit
If the navigation software freezes, try
resetting the unit.
Press the RESET button with a pointed
object, such as a ballpoint pens
(page 9).
Note
After you reset the unit, it may take time to
receive GPS signals.
The car position on the map does not
match the current road.
The error margin of the signal from the GPS
satellites is too large. A maximum error
margin of a few hundred meters can exist.
Voice guidance cannot be heard.
The volume is set too low.
t
Raise the volume by touching
in the
top menu or the map display.
When the unit is powered by the built-in
battery, volume may slightly decrease.
The LCD is not displayed normally.
• In high temperatures, the LCD may darken
and not display clearly. In low
temperatures, afterimage may occur on the
LCD. These are not malfunctions, and the
LCD will return to normal when the
temperature returns to within the specified
operating range.
• The LCD is dark.
t
The auto dimmer function may be
activated because its sensor (page 9) is
covered by a hand, etc.
The cradle comes off from the
attachment surface.
Attachment strength weakens if the surface
of the suction cup or attachment surface
become dirty.
t
Wash and clean the suction cup and the
attachment surface (page 24).
The demonstration mode starts
automatically even if no operation is
performed.
t
Turn off the auto demonstration mode by
selecting “More...” in the top menu
c
“Settings”
c
“General Settings”
c
“Demo Mode.” Then, confirm that
“Demo Mode” is set to off.
00US+00COV-U.book Page 30 Friday, November 10, 2006 6:24 PM