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Dealing with Problems (Summary)
24
Troubleshooting
When the previous item is
not the cause
z Press
F9
in the Setup Utility. This will restore the Setup Utility’s settings to their
default values (except the password settings).
z Try removing all peripheral devices.
z Check a disk error using the following procedure.
A Display [Local Disk (C:) Properties].
Select [Local Disk(C:)] with the right button in [start] - [My Computer],
and select [Properties].
B Select [Tools] - [Check Now].
C Select [Start] after selecting required items in [Check disk options].
z At startup, hold down
F8
when [Panasonic] boot screen disappears
*1
, and release
your finger when the Windows Advanced Option Menu is displayed. Start the com-
puter in Safe Mode, and confirm the details of the error.
*1
When [Password on boot] is set to [Enable], [Enter Password] appears after the [Panasonic]
boot screen disappears. Hold down
F8
soon after inputting the password and pressing
Enter
.
Display
No display after powering
on
z When there is no display to an external display,
• Check your cable connection to the external display.
• Confirm your display is powered on.
• Check the settings for your external display.
z The display destination may be set to the external display.
Try changing the display by pressing
Fn
+
F3
.
If you want to switch the display destination repeatedly by pressing
Fn
+
F3
, make
sure that the display destination has switched completely each time before pressing
Fn
+
F3
again.
z When displaying only through an external display, if the computer is shut down by
using the standby or hibernation function, there will be no display on the LCD unless
the external display is connected when operations are resumed. In this case, con-
nect the external display or press
Fn
+
F3
.
z Press
Fn
+
F2
and adjust the brightness.
The power has not been
turned off, but after a certain
period of time, there is no
display
z Has the computer been set to the power-saving mode?
To resume operation of your computer from the condition the power of the display is
off (for energy conservation purposes), press any key unrelated to the direct trigger-
ing of a selection, like
Ctrl
.
z To save power, your computer may have automatically entered the standby mode
(power indicator blinks green) or hibernation mode (power indicator turns off). In
such cases, press the power switch.
When the battery pack is
used, the screen is darker
than when the AC adaptor
is connected
z Press
Fn
+
F2
and adjust the brightness. Note, however, that when the brightness
is increased, the battery running time will become shorter.
Brightness can be set to separate levels for when the AC adaptor is connected and
when it is disconnected.
The cursor cannot be con-
trolled properly
z If you are using an external mouse, ensure that the external mouse has been con-
nected correctly.
z Restart the computer by using the keyboard (Press ,
U
, and select [Restart] with
R
).
z If the computer does not respond to keyboard commands, read “No response”
(Î page 26).
An afterimage appears
(e.g., green, red, and blue
dots remain on the display)
or there are dots not dis-
playing the correct colors
z If an image is displayed for a prolonged period of time, an afterimage may appear.
This is not a malfunction. The afterimage will disappear when a different screen is
displayed.
z High-precision and advanced technologies are necessary in the production of color
liquid crystal displays (color LCDs). Therefore, if 0.002% or less of the picture ele-
ments either fail to light or remain constantly lit (that is, more than 99.998% of ele-
ments are functioning properly), no defect is considered to exist.
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