Troubleshooting, Display problems | Lenovo Z480, Z485, Z580, Z585

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

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 computer Cap sensor buttons Built-in microphone Touchpad Left-side view „ Lenovo IdeaPad Z380 „ Lenovo IdeaPad Z480/Z485/Z580/Z585 Right-side view Front view „ Lenovo IdeaPad Z380 Bottom view Battery latch manual Battery pack Learning the basics „ Connecting to the power„ Configuring the operating system „ Reading the manuals Learning the basics „ Shutting down your computerPutting your computer into sleep state „ Checking battery status „ Charging the battery „ Removing the battery pack „ Handling the battery Using the touchpad Touchpad Touchpad button Lenovo IdeaPad Z380/Z480/Z485 Using the keyboard„ Numeric keypad Lenovo IdeaPad Z580/Z585 „ Function key combinations Lenovo IdeaPad Z380/Z480/Z485 Lenovo IdeaPad Z580/Z585 Fn + Home Fn + Esc Fn + F1 Fn + F2 Fn + F3 Fn + F4 Fn + F5 Fn + F6Fn + PrtSc Fn + End Inserting a memory card „ Using memory cards not suppliedConnecting external devices Removing a memory card Enabling 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 f Performing 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 WiMAX Software configuration Hardware connection OneKey Rescue system OneKey Rescue system„ Introduction „ Creating a recovery discs OneKey Rescue system Troubleshooting Frequently asked questions Troubleshooting Where can I find warranty information? Troubleshooting Display problems Sleep or hibernation problems Password problemsKeyboard problems Computer screen problems Screen is blank Hard disk drive problem Sound problemsBattery problems Startup problem Troubleshooting Other problems Respond Replacing the battery pack Appendix A. CRU instructions Appendix A. CRU instructions Handling a hard disk drive Appendix 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