Panasonic Toughbook CF-18FHAZXBM Operating Instructions Manual

Also see for Toughbook CF-18 Series: Precautions for Installing Precautions for Installing Operating instructions Supplementary instructions Supplementary instructions

Panasonic Toughbook CF-18FHAZXBM Operating Instructions Manual Manual pdf 32 page image

32 TroubleshootingDealing with Problems (Summary)No display after powering onThe power has not beenturned off, but after a cer-tain period of time, there isno displayWhen the battery pack isused, the screen is darkerthan when the AC adaptoris connectedAn afterimage appears (e.g.,green, red, and blue dots re-main on the display) or thereare dots not displaying thecorrect colorsThe external display nolonger displays properlyWhen you want to displaythe fonts or icons at a largersizeWhen 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 , makesure that the display destination has switched completely each time before pressingFn + 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 aselection, like Ctrl .To save power, your computer may have automatically entered the standby mode (powerindicator 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 isincreased, the battery running time will become shorter.Brightness can be set to separate levels for when the AC adaptor is connected and when itis disconnected.If an image is displayed for a prolonged period of time, an afterimage may appear. This isnot a malfunction. The afterimage will disappear when a different screen is displayed.High-precision and advanced technologies are necessary in the production of color liquidcrystal displays (color LCDs). Therefore, if 0.002% or less of the picture elements eitherfail 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 thecomputer, the display may not function correctly when the computer enters the powersaving 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”).DisplayPress F9 in the Setup Utility ( “Setup Utility”). This will restore the SetupUtility’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 releaseyour finger when the Windows Advanced Options Menu is displayed. Start the computerin Safe Mode, and confirm the details of the error.*1 When [Password on boot] is set to [Enable], [Enter Password] appears after the [Panasonic] bootscreen disappears. Hold down F8 soon after inputting the password and pressing Enter .Starting Up (continued)When the previous item isnot the cause