Panasonic Toughbook CF-T8EWDTZ2M Operating Instructions Manual page 26

Troubleshooting (Basic)/Error Code/Message
Starting Up and Standby and Hibernation Mode
When logging on (e.g.,
resuming the computer),
audio is distorted.
Cannot resume.
Other startup problems.
Shutting Down
Windows does not shut
down.
Password
Even after entering the pass-
word, a message appears
requesting to type it again.
Display
When the screen becomes
black for a moment.
No display.
The screen is disordered.
The external display does
not work normally.
<For MUI OS model>
Characters are not dis-
played correctly.
26
Perform the following steps to change the audio settings to prevent audio output.
A Click [start] - [Control Panel] - [Sounds, Speech, and Audio Devices] - [Sounds and
Audio Devices], and click [Sounds].
B Set [Windows Logon] and [Windows Logoff] to [(None)].
One of the following operations may have been carried out.
• In standby mode, the AC adaptor or battery pack was disconnected, or a peripheral
was connected or disconnected.
• The power switch was slid for four seconds or longer to forcibly turn off the computer.
Slide the power switch to turn on the computer. Data not saved will be lost.
Check to see if there was a disk error.
A Remove all peripheral devices including an external display.
B Click [start] - [My Computer] and right-click [Local Disk (C:)], and click [Properties].
C Click [Tools] - [Check Now].
• A standard user needs to enter an administrator password.
D Select the option in [Check disk options] and click [Start].
Start the computer in Safe Mode and check the error details. (
does not start up".)
Remove all peripheral devices.
Wait one or two minutes. It is not a malfunction.
NumLk to disable the ten-key mode, and then input.
If lights up, press
Caps Lock to disable the Caps Lock mode, and then input.
If lights up, press
When you set [Intel video driver power saving function (Intel(R) Display Power Saving Tech-
nology)] of Power Saving Utility to [Enabled], if you do the following operations, the screen
becomes black for a moment, but this is not a malfunction. You can use it.
• Adjust the brightness of the screen with
• Remove and insert the AC adaptor.
While you are using motion video playback software, benchmark software for graphic, if
error screen is displayed or application software does not function normally, set [Intel video
driver power saving function (Intel(R) Display Power Saving Technology)] to [Disable].
The external display is selected. Press
play has been switched completely before pressing
The display is turned off by the power-saving function. To resume, do not press the direct
selection keys, but press any other key like
The computer entered standby or hibernation by the power-saving function. To resume,
slide the power switch.
The screen may become darker. Press
Changing the number of display colors and resolution may affect the screen. Restart the computer.
The refresh rate of the internal LCD may be 40 hertz. Change the refresh rate of the internal LCD.
A Click [start] - [Control Panel] - [Other Control Panel Options] - [Intel(R) GMA Driver
for Mobile].
B Click [Display Settings].
C If [Refresh Rate] of the Notebook is [40 Hertz], change to [60 Hertz] and click [OK].
If the external display does not support the power saving function, it may not work nor-
mally when the computer enters the power saving mode. Turn off the external display.
Confirm the language setting. (
Fn + F1 / Fn + F2 .
Fn + F3 to switch the display. Wait until the dis-
Fn + F3 again.
Ctrl .
Fn + F2 to make the screen brighter.
page 13, step 7)
Windows
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