Panasonic CF-37 Series Toughbook Reference Manual page 47

Dealing With Problems
Display
No display after power-
ing on
The power has not been
turned off, but after a cer-
tain period of time, there
is no display
The resolution of the dis-
play cannot be changed
An afterimage appears(i.e.,
green, red, and blue dots re-
main on the display) or
there are dots not display-
ing the correct colors
During simultaneous dis-
play, the screen of the
ex t e r n a l d i s p l ay be-
comes disordered
Touchscreen
Unable to input by
touching the display
Reference Manual
Unable to display the
Reference Manual
At the time of purchase, the display setting is preset for an external display. If you
connect an external display, the screen is displayed on the external display.
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.
Try changing the display by pressing
When displaying only through an external display, if the computer is shut down by
using the suspend or hibernation function, there will be no display on the LCD
unless the external display is connected when operations are resumed. In this
case, connect the external display.
Has the computer been set to the power-saving mode?
To resume operation of your computer from ECO mode, press any key.
To save power, your computer may have automatically entered the suspend or
hibernation mode. (
Set [None] for [Wallpaper] in [Start] - [Settings] - [Control Panel] - [Display] - [Back-
ground], and then press [OK]. Then, once again try changing the resolution. After
the change, be sure to restart the computer.
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 ele-
ments are functioning properly), no defect is considered to exist.
Try changing the display by pressing
Has the Setup Utility been used to set [Serial Port B] to [Touchscreen]?
( )
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Confirm that the setting for resource in [Start] - [Programs] - [Updd] - [Settings] -
[Hardware] and the setting for [Base I/O] in [Serial Port B:] of the Setup Utility are
appropriate.
When mouse drivers are installed (i.e. Intellimouse), the touchscreen may at times
be unable to be used. In such cases, reinstall the touchscreen driver.
Has Acrobat Reader been uninstalled?
If Acrobat Reader has been uninstalled, select [Star t] - [Run], then type
"c:\util\reader\setup.exe". Follow the on-screen instructions.
(Acrobat Reader can be also downloaded from "http://www.adobe.com".)
(Advanced)
Fn + F3 .
)
page 18
Fn + F3 .
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