Panasonic CF-71 Reference Manual page 42

Dealing With Problems
Sound
The sound is not heard
Display
No display after powering
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 remain on the dis-
play) or there are dots not
displaying the correct
colors
The cursor cannot be
controlled
During simultaneous dis-
play, the screen of the
e x t e r n a l d i s p l a y b e -
comes disordered
The external display no
longer displays properly
The screen becomes dis-
ordered
Try changing the mute by pressing Fn + F4 .
Has the Setup Utility been used to set [Speaker] to [Disable]?(
Try raising the volume on the taskbar.
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* function, there will be no display on the LCD unless the exter-
nal 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 the condition the power of the display
is OFF (for energy conservation purposes), 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
elements either fail to light or remain constantly lit (that is, more than 99.998% of
elements are functioning properly), no defect is considered to exist.
Restart the computer by using the keyboard (e.g.,
Try changing the display by pressing
When an external display not compatible with the power saving mode is used with
the computer, the external display may no longer display properly when the computer
enters the condition the power of the display is OFF (for energy conservation pur-
poses). In such cases, turn off the power to the external display.
When using an external display, set [Turn off monitor] to [Never] in [Start] - [Settings]
- [Control Panel] - [Power Options].
Changing the number of colors of the display may affect the screen. Restart the
computer.
Fn + F3 .
).
Fn + F3 .
* With Windows 2000, the "Suspend" is called "Standby".
42
page 32)