32
T
roub
leshooting
Dealing with Problems
(Summary)
No display after powering on
The power has not been
turned off, but after a cer-
tain period of time, there is
no display
When the battery pack is
used, the screen is darker
than when the AC adaptor
is connected
An afterimage appears (e.g.,
green, red, and blue dots re-
main on the display) or there
are dots not displaying the
correct colors
The external display no
longer displays properly
When you want to display
the fonts or icons at a larger
size
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.
The display destination may be set to the external display.
Try changing the display destination 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.
Press
Fn
+
F2
and adjust the brightness.
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 triggering of a
selection, like
Ctrl
.
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,
slide the power switch.
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.
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.
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 elements either
fail to light or remain constantly lit (that is, more than 99.998% of elements are function-
ing properly), no defect is considered to exist.
When an external display not compatible with the power saving mode is used with the
computer, the display may not function correctly when the computer enters the power
saving mode. In such cases, turn off the power to the external display.
Change the size of the icons, etc. using “Icon Enlarger” (
“Icon Enlarger”).
To enlarge a part of the screen, use Loupe Utility (
“Loupe Utility”).
Display
Press
F9
in the Setup Utility (
“Setup Utility”). This will restore the Setup
Utility’s settings to their default values (except the password settings).
Try removing all peripheral devices.
Check a disk error using the following procedure.
1
Select [start] - [My Computer], and select [Local Disk(C:)] with the right button.
2
Select [Properties].
3
Select [Tools] - [Check Now].
4
Select [Start] after selecting required items in [Check disk options].
At startup, hold down
F8
when the [Panasonic] boot screen disappears*
1
, and release
your finger when the Windows Advanced Options Menu is displayed. Start the computer
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
.
Starting Up (continued)
When the previous item is
not the cause
Содержание Toughbook CF-18FDAZXVM
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