Panasonic Toughbook CF-U1A1E1Z2M Operating Instructions Manual page 40

Troubleshooting (Basic)
Starting Up
Other startup
problems.
(continued)
Shutting down
Windows does not
shut down.
Display
No display.
The screen is dark.
40
Start the computer in Safe Mode and check the error
details. When the [Panasonic] boot screen disappears
startup, press and hold
Advanced Options Menu is displayed.
*1
When [Password on boot] is set to [Enabled] in the [Secu-
rity] menu of the Setup Utility, [Enter Password] appears
after the [Panasonic] boot screen disappears. As soon as
you enter the password and press
hold + (F8).
Remove the USB device.
Wait one or two minutes. It is not a malfunction.
The external display is selected. Press
switch the display. Wait until the display has been
switched completely before pressing
again.
When using an external display,
Check the cable connection.
Turn on the display.
Check the settings of external display.
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
( )
or hibernation by the power-saving func-
tion. To resume, press the power switch.
The screen may not be displayed even after the computer
resumed from standby or hibernation. In this case, press
+ ( ) to enter standby and resume the computer
again.
The screen is darker when the AC adaptor is not connect-
ed. Press +
increase the brightness, battery consumption increases.
You can separately set the brightness for when the AC
adaptor is connected and when not connected.
+ (F8) until the Windows
.
sleep (
( ) and adjust the brightness. As you
at
*1
(Enter), press and
+ ( ) to
+ ( )
) / standby