Panasonic Toughbook CF-F9KWH011M Operating Instructions Manual

Also see for CF-F9 Series: Supplementary instructions Reference manual Reference manual Reference manual Operating instructions

Contents

26Troubleshooting (Basic)Getting StartedUseful InformationTroubleshootingAppendixCannot log on to Windows.(“The user name or passwordis incorrect.” is displayed.)z The user name (account name) includes an “@” mark.If another user account exists:Log on to Windows using another user account, and delete the account thatincludes “@”. Then create a new account.If no other account exists:You need to reinstall Windows (Î page 22). DisplayWhen the screen becomesblack for a moment. z When you set [Intel(R) video driver power saving function] - [Intel(R) Display Power Sav-ing Technology] of Power Plan Extension Utility to [Enabled], if you do the following oper-ations, the screen becomes black for a moment, but this is not a malfunction. You canuse it.• Adjust the brightness of the screen with Fn + F1 / Fn + F2.• Remove and insert the AC adaptor.While you are using motion video playback software, benchmark software for graphic, if errorscreen is displayed or application software does not function normally, set [Intel(R) videodriver power saving function] - [Intel(R) Display Power Saving Technology] to [Disabled].z When you set [Intel video driver power saving function (Intel(R) Display Power Saving Tech-nology)] of Power Saving Utility to [Enable], if you do the following operations, the screenbecomes black for a moment, but this is not a malfunction. You can use it.• Adjust the brightness of the screen with Fn + F1 / Fn + F2.• Remove and insert the AC adaptor.While you are using motion video playback software, benchmark software for graphic, iferror screen is displayed or application software does not function normally, set [Intel videodriver power saving function (Intel(R) Display Power Saving Technology)] to [Disable].No display. z The external display is selected. Press Fn + F3 (or + P) to switch thedisplay. Wait until the display has been switched completely before pressing Fn + F3(or + P) again.z The display is turned off by the power-saving function. To resume, do not press the directselection keys, but press any other key like Ctrl.z The computer entered sleep/ standby or hibernation bythe power-saving function. To resume, slide the power switch.z The screen may become darker. Press Fn + F2 to make the screen brighter.The screen is disordered. z Changing the number of display colors and resolution may affect the screen. Restart thecomputer.z The refresh rate of the internal LCD may be 40 hertz. Change the refresh rate of theinternal LCD.A Right-click on the desktop, and click [Graphics Properties].B Click [General Settings].C If [Refresh Rate] of the Notebook is [40 Hz], change to [60 Hz] and click [OK].The external display doesnot work normally.z 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. BatteryThe battery indicator islights red.z The battery level is very low (the charge is approx. 9% or less).z Connect the AC adaptor. You can use the computer when the indicator light is orange. Ifyou do not have an AC adaptor, save your data and power off your computer. Afterreplacing the battery pack with a fully charged one, turn your computer on again.The battery indicator isblinking.z If blinking red:Quickly save your data and power off your computer. Remove the battery pack and dis-connect the AC adaptor, then connect them again. If the problem persists, contact yourtechnical support office. The battery pack or charging circuit may be defective.z If blinking orange:• Battery cannot be recharged temporarily because the internal temperature of the bat-tery pack is outside the acceptable temperature range for recharging. Your computercan be used normally in this state. Once the range requirement is satisfied, chargingbegins automatically.• Software applications and peripheral devices (USB devices, etc.) are consuming toomuch power. Exit the software applications currently running, and remove all peripher-als. Once the range requirement is satisfied, charging begins automatically. Password