Lenovo Z570, Z370, Z470 manual Troubleshooting, Display problems

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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.

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Contents IdeaPad Z370/Z470/ Z570 Regulatory Notice First Edition December Copyright Lenovo Contents Page Top view Getting to know your computerZ370/Z470 „ Z570 Getting to know your computerCamera Wireless module antennas Computer display Speakers Power button OneKey Rescue system buttonGetting to know your computer Integrated Thermal management button„ Z370/Z470 Left-side viewESATA/USB Getting to know your computer Combo port USB portOptical drive „ Z370 „ Z470 „ Z570Right-side view Getting to know your computer USB port Front view „ Z370 Bottom viewC d Battery pack „ Connecting to the power „ Configuring the operating systemLearning the basics „ 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 Z570 Using the keyboard„ Numeric keypad Z370/Z470 „ Function key combinations Learning the basics Removing a memory card „ Using memory cards not suppliedInserting a memory card „ Connecting USB devices „ Connecting Bluetooth enabled devices on select models Enabling Bluetooth communications on your computerSpecial keys and buttons „ Volume buttons b~d„ OneKey Rescue system button a „ OneKey Theater button e Standard mode Super silent modeEfficient thermal dissipation mode „ Thermal management button fPerforming dust cleaning System status indicators Page Securing your computer „ Using VeriFace„ Attaching a security lock not supplied „ Using passwords Enabling Nvidia Optimus on select modelsConnecting 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 systemOneKey Rescue system Troubleshooting Frequently asked questionsWhere can I find warranty information? Troubleshooting Display problemsSleep or hibernation problems Troubleshooting Password problemsKeyboard problems Computer screen problems Puter does not workTroubleshooting Sound problems Battery problemsHard disk drive problem Startup problemTroubleshooting Other problems RespondReplacing the battery pack Appendix A. CRU instructionsAppendix A. CRU instructions Replacing the hard disk drive Handling a hard disk driveZ370 Appendix A. CRU instructions Appendix A. CRU instructions Z470/Z570 Z570 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 Removing the optical drive Setup Poster User Guide Trademarks Page New World. New Thinking.TM