Lenovo Z480, Z485, Z580, Z585, Z380 manual Troubleshooting, Display problems

Page 38

Chapter 5. Troubleshooting

Troubleshooting -------------------------------------------------------------------------------------

If you do not find your problem here, see Chapter 2. The following section only describes problems that might negate the need to refer to the more comprehensive information in Chapter 2.

Display problems

When I turn on the computer, nothing appears on the screen.

When I turn on the computer, only a white cursor appears on a blank screen.

My screen goes blank while the computer is on.

•If the screen is blank, make sure that:

-The battery is installed correctly.

-The AC adapter is connected to the computer and the power cord is plugged into a working electrical outlet.

-The computer power is on. (Press the power button again for confirmation.)

-The memory is installed correctly.

•If these items are properly set, and the screen remains blank, have the computer serviced.

•Restore backed-up files to your Windows environment or the entire contents of your hard disk to the original factory contents using OneKey Rescue system. If you still see only the cursor on the screen, have the computer serviced.

•Your screen saver or power management may be enabled. Do one of the following to exit from the screen saver or to resume from sleep or hibernation mode:

-Touch the touchpad.

-Press any key on the keyboard.

-Press the power button.

-Press Fn + F2 to confirm whether the backlight for the LCD screen has been turned off.

34

Image 38

Contents Lenovo IdeaPad Z380/Z480/Z485/ Z580/Z585 Regulatory Notice First Edition December Copyright Lenovo Contents Page Top view Getting to know your computer„ Lenovo IdeaPad Z380/Z480/Z485 „ Lenovo IdeaPad Z580/Z585 Getting to know your computerCap sensor buttons Built-in microphone Touchpad Left-side view „ Lenovo IdeaPad Z380 „ Lenovo IdeaPad Z480/Z485/Z580/Z585 Right-side viewFront view „ Lenovo IdeaPad Z380 Bottom viewBattery latch manual Battery pack Learning the basics „ Connecting to the power„ Configuring the operating system „ Reading the manualsLearning the basics „ Shutting down your computerPutting your computer into sleep state „ Checking battery status „ Charging the battery„ Removing the battery pack „ Handling the batteryUsing the touchpad Touchpad Touchpad buttonLenovo IdeaPad Z380/Z480/Z485 Using the keyboard„ Numeric keypad Lenovo IdeaPad Z580/Z585„ Function key combinations Lenovo IdeaPad Z380/Z480/Z485 Lenovo IdeaPad Z580/Z585Fn + Home Fn + Esc Fn + F1 Fn + F2 Fn + F3 Fn + F4 Fn + F5 Fn + F6Fn + PrtSc Fn + EndInserting a memory card „ Using memory cards not suppliedConnecting external devices Removing a memory cardEnabling Bluetooth communications on your computer „ Connecting USB devices„ Connecting Bluetooth enabled devices on select models „ OneKey Rescue system button a Special keys and buttons„ Cap Sensor buttons Standard mode Thermal management button fPerforming dust cleaning System status indicators Securing your computer „ Using VeriFace„ Attaching a security lock not supplied „ Using passwords Connecting to the Internet Wired connection„ Hardware connection „ Software configurationConnecting to the Internet Wireless connection Wi-Fi WiMAXSoftware configuration Hardware connectionOneKey Rescue system OneKey Rescue system„ Introduction „ Creating a recovery discs OneKey Rescue systemTroubleshooting Frequently asked questionsTroubleshooting Where can I find warranty information?Troubleshooting Display problemsSleep or hibernation problems Password problemsKeyboard problems Computer screen problems Screen is blankHard disk drive problem Sound problemsBattery problems Startup problemTroubleshooting Other problems RespondReplacing the battery pack Appendix A. CRU instructionsAppendix A. CRU instructions Handling a hard disk driveAppendix A. CRU instructions Lenovo IdeaPad Z380 Lenovo IdeaPad Z480/Z485/Z580/Z585 Pull the tab in the direction shown by arrow d Take out the hard disk drive secured in a metal frame e Appendix A. CRU instructions Replacing memory Appendix A. CRU instructions Appendix A. CRU instructions Replacing the wireless LAN card Appendix A. CRU instructions Removing the optical drive Setup Poster User Guide Trademarks Page New World. New Thinking.TM