Lenovo Y510 warranty Troubleshooting

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Chapter 3. Troubleshooting

The computer enters sleep mode (the sleep indicator turns on) immediately after Power-on self-test (POST).

Make sure that:

The battery is charged.

The operating temperature is within the acceptable range. See “Specifications” on page 57.

If the battery is charged and the temperature is within range, have the computer serviced.

The critical low-battery error message appears, and the computer immediately turns off.

The battery power is getting low. Connect the AC adapter to the computer, or replace the battery with a fully charged one.

The computer does not return from sleep mode, or the sleep indicator stays on and the computer does not work.

If the computer does not return from sleep mode, it may have entered sleep or hibernation mode automatically because the battery is depleted. Check the sleep indicator.

If the sleep indicator is on, your computer is in sleep mode. Connect the AC adapter to the computer; then press any key or the power button.

If the sleep indicator is off, your computer is in sleep/hibernation mode or power- off state. Connect the AC adapter to the computer; then press the power button to resume operation.

If the system still does not return from sleep mode, your system has stopped responding, and you cannot turn off the computer; reset the computer. Unsaved data may be lost. To reset the computer, press and hold the power button for 4 seconds or more. If the computer is still not reset, remove the AC adapter and the battery.

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Contents Lenovo IdeaPad Y510 Page Contents Read This First Read This First Top View Getting to Know Your ComputerPower button Wireless LAN antennasBattery Capacity indicators System status indicatorsLAN port AC power adapter jackLeft-sideView Getting to Know Your ComputerPCI Express card new card slot Ieee 1394 connectorGetting to Know Your Computer Fan louvers VGA portRight-side View Headphone/SPDIF jack externalMicrophone jack external Security keyhole Getting to Know Your Computer Video jackOptical drive types vary by model Modem PortBattery latch spring loaded Bottom ViewSubwoofer ™ Notes Getting to Know Your Computer Battery packBattery latch manual Hard Disk Drive/ TV card Specific models only compartmentFront View CIR port Wireless device switchGetting to Know Your Computer Array Microphone built-in Multi-media reader slot¾ Warning Using Your Computer„ Putting your computer to Sleep „ Shutting Down Your computerUsing Your Computer Adjusting the display„ Adjusting the brightness „ Switch between wide screen and normal screenUsing 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 System status indicators Drive in useNum Lock Wireless Device Indicator Using Your Computer Caps LockPower Indicator Battery Status Indicator„ Watching DVD Watching TV and DVDPlaying a CD „ Watching TVUsing the Integrated Camera „ Using PasswordsSecuring 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„ Your Computer Batteries Using battery and AC adapter„ Checking Battery Status „ Using the AC Adapter„ Charging the Battery Using Your Computer ™ Note „ Handling the BatteryFrequently Asked Questions TroubleshootingTroubleshooting „ Display Problems„ a Password Problem „ Keyboard Problems„ Sleep or Hibernation Problems Troubleshooting „ Computer Screen Problems Screen is blankScreen is unreadable or distorted Incorrect characters appear on the screen „ Sound Problems„ Battery Problems „ a Hard Disk Drive Problem„ a Startup Problem „ Other Problems Your computer does not respondComputer 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 WorkSafety, Use, and Care Information „ Be Gentle with Your Computer„ Carry Your Computer Properly „ Take Care in Setting Passwords „ Handle Storage Media and Drives Properly„ 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 Display ProcessorMemory Storage deviceCamera Wireless featuresExpressCard slot Optical driveSize 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„ Industry Canada Class B Emission Compliance Statement „ Avis de conformité à la réglementation d’Industrie Canada„ European Union EMC Directive Conformance Statement For Taiwan „ Japanese Vcci Class B Statement„ 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