Lenovo Y510 warranty Display Problems, Troubleshooting

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Chapter 3. Troubleshooting

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

If you do not find your problem here, see Chapter 2. The following section only describes problems that might prevent you from accessing the comprehensive information in Chapter 2.

Display Problems

When I turn on the computer, nothing appears on the screen and the computer does not beep while starting up.

Note:

If you are not sure whether you heard any beeps, turn off the computer; then turn it on again, and listen again. If you are using an external monitor, See “Computer Screen Problems” on page 35.

If a user password is set, press any key to display the user password prompt; then enter the correct password and press Enter.

If the user password prompt does not appear, the brightness level might be set to minimum brightness. Adjust the brightness level by pressing Fn + .

If the screen still remains 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.)

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

When I turn on the computer, nothing appears on the screen, but I hear two or more beeps.

Make sure that the memory card is installed correctly. If it is, but the screen is still blank, and you hear five beeps, have the computer serviced.

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

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

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Contents Lenovo IdeaPad Y510 Page Contents Read This First Read This First Top View Getting to Know Your ComputerBattery Capacity indicators Wireless LAN antennasSystem status indicators Power buttonLeft-sideView AC power adapter jackGetting to Know Your Computer LAN portGetting to Know Your Computer Fan louvers Ieee 1394 connectorVGA port PCI Express card new card slotHeadphone/SPDIF jack external Right-side ViewMicrophone jack external Optical drive types vary by model Getting to Know Your Computer Video jackModem Port Security keyholeBottom View Battery latch spring loadedSubwoofer Battery latch manual Getting to Know Your Computer Battery packHard Disk Drive/ TV card Specific models only compartment ™ NotesFront View Getting to Know Your Computer Array Microphone built-in Wireless device switchMulti-media reader slot CIR port„ Putting your computer to Sleep Using Your Computer„ Shutting Down Your computer ¾ Warning„ Adjusting the brightness Adjusting the display„ Switch between wide screen and normal screen Using Your ComputerUsing the Touch Pad „ Numeric Keypad Using the KeyboardFn + PrtSc/SysRq System request „ Function Key Combinations„ Novo button Special keys and buttonsTouch inductive panel a~l „ Touch inductive panel and multi-media buttonsMulti-media buttons m~n Drive in use System status indicatorsNum Lock Power Indicator Using Your Computer Caps LockBattery Status Indicator Wireless Device IndicatorPlaying a CD Watching TV and DVD„ Watching TV „ Watching DVD„ Using Passwords Using the Integrated CameraSecuring your computer To set a Supervisor Password To set a User password Changing or Removing the Supervisor PasswordHard Disk Passwords Changing or Removing the User PasswordTo set a hard disk password Changing or Removing the HDD Passwords Installing Device Drivers„ Checking Battery Status Using battery and AC adapter„ Using the AC Adapter „ Your Computer Batteries„ Charging the Battery Using Your Computer ™ Note „ Handling the BatteryFrequently Asked Questions TroubleshootingTroubleshooting „ Display Problems„ Keyboard Problems „ a Password Problem„ Sleep or Hibernation Problems Troubleshooting Screen is blank „ Computer Screen ProblemsScreen is unreadable or distorted Incorrect characters appear on the screen „ Sound Problems„ a Hard Disk Drive Problem „ Battery Problems„ a Startup Problem Your computer does not respond „ Other ProblemsComputer does not start from a device you want Getting Help and Service Getting Help and ServiceGetting Help on the Web Getting Help and Service Getting Help around the World Caring Your Computer „ Be Careful about Where and How You Work„ Be Gentle with Your Computer Safety, Use, and Care Information„ Carry Your Computer Properly „ Handle Storage Media and Drives Properly „ Take Care in Setting Passwords„ Other Important Tips „ Cleaning the Cover of Your Computer „ Cleaning Your Computer Display „ Cleaning Your Computer Keyboard„ Ergonomic Information Accessibility and Comfort„ Questions about Vision? „ What If You are Traveling?„ General Tips for Maintenance MaintenanceSafety, Use, and Care Information Warranty Information Appendix A. Warranty Information„ Types of Warranty Service Warranty Service Telephone Numbers Lenovo Warranty Service Telephone NumbersAppendix B. Customer Replaceable Units CRUs Memory ProcessorStorage device DisplayExpressCard slot Wireless featuresOptical drive CameraSize Environment Power source AC adapter Battery pack SpecificationsAppendix D. Notices Appendix D. Notices „ Television output notice„ Wireless Interoperability Wireless related information„ Usage Environment and Your Health „ Federal Communications Commission FCC Statement Electronic Emissions Notices„ Avis de conformité à la réglementation d’Industrie Canada „ Industry Canada Class B Emission Compliance Statement„ European Union EMC Directive Conformance Statement „ Japanese Vcci Class B Statement For Taiwan„ General Recycling Statement Japan Recycling Statements EU Weee Statements„ Disposing of a Lenovo Computer Components Copyright Lenovo 2007. All rights reserved. U.S. Government Appendix D. Notices Trademarks CPU IndexHandling Index