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Lenovo Y460 manual Troubleshooting, Computer screen problems, Sound problems, The screen is blank

Models: Y460

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Computer screen problems

Chapter 5. Troubleshooting

Computer screen problems

The screen is blank.	•	Do the following:
		- If you are using the AC adapter, or using the
		battery, and the battery status indicator is on, press
		Fn + to make the screen brighter.
		- If the power indicator is blinking, press the power
		button to resume from the sleep mode.
		- If the problem persists, follow the solution in the
		following problem “The screen is unreadable or
		distorted.”
		- Press Fn+F2 to confirm whether the LCD screen
		has been turned off.
The screen is unreadable or	•	Make sure that:
distorted.		- The display device driver is installed correctly.
		- The screen resolution and color quality are
		correctly set.
		- The monitor type is correct.
Incorrect characters appear	• Did you install the operating system or application
on the screen.		program correctly? If they are installed and
		configured correctly, have the computer serviced.

Sound problems
No sound can be heard	•	Make sure that:
from the speaker even		- The Mute function is off.
when the volume is turned		- The headphone jack is not used.
up.		- Speakers is selected as a playback device.
		- Speakers is selected as a playback device.

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Lenovo Y460 Troubleshooting, Computer screen problems, Sound problems, The screen is blank, The screen is unreadable or

Contents

User Guide Lenovo IdeaPad Y460First Edition Jan Copyright Lenovo Dear user Respective UsersExplanation of hard disk capacity II. A portion of the hard disk space is used for specific purposes Page Chapter 2. Learning the ContentsChapter 4. OneKey Rescue Chapter 6. Upgrading andAppendix F. Features and ContentsSpecifications Appendix C. Lenovo limitedImportant safety information Important safety information„ Read this first DangerUnpack Important safety informationInspect the covers of the computer and the AC adapter, especially parts with the following labels attached for any crack or damage DangerWorking place Important safety informationDo NOT use the computer in humid places such as a bathroom DangerOn using Important safety informationUse ONLY the power cord, power adapter and battery pack shipped with the computer and never use them with another product DangerDo NOT wrap the power cord around the power adapter or other objects Important safety informationService and upgrades Important safety informationviii Keep the covers closed whenever the computer is plugged inTop view Chapter 1. Getting to know your computerBuilt-in microphone Wireless module antennas Computer display Speakers Power buttonSystem status indicators Chapter 1. Getting to know your computerAmbient Light Sensor 10 Lenovo SlideNav bar Chapter 1. Getting to know your computerCap sensor buttonsChapter 1. Getting to know your computer Left-side viewVGA port HDMI port Fan louvers RJ-45 portYour computer comes with an optical drive, such as a CD DVD drive Connects to USB devicesConnects to eSATA or USB devices Note For details, see “Using AC adapter and battery” on page AC powerChapter 1. Getting to know your computer adapter jackwireless device switch specificswitch Slide and release this switch to change the GPUChapter 1. Getting to know your computer Bottom viewBattery latch- spring loaded Battery packBattery latch- manual Chapter 1. Getting to know your computer„ Connect to the power Chapter 2. Learning the basicsInstall the battery pack „ Read the manuals„ Turn on the computer „ Configure the operating system„ Putting your computer into sleep state or shutting it down Chapter 2. Learning the basicsChapter 2. Learning the basics „ Shutting down your computer„ Checking battery status Using AC adapter and battery„ Charging the battery Chapter 2. Learning the basicsChapter 2. Learning the basics „ Removing the battery packChapter 2. Learning the basics „ Handling the batteryChapter 2. Learning the basics Using the touchpadTouchpad Left click button Right click buttonChapter 2. Learning the basics „ GesturesPinch zoom Two-Finger ScrollingPlace three fingers, slightly separated, down on the TouchPad surface Chapter 2. Learning the basicsThree-Finger Flick Chapter 2. Learning the basics Using the keyboard„ Numeric keypad Chapter 2. Learning the basics „ Function key combinationsFn + F6 Chapter 2. Learning the basicsFn + F7 Fn + F8a OneKey Rescue System button Special keys and buttonsChapter 2. Learning the basics Note For details, see the help file of Lenovo SlideNav Application Chapter 2. Learning the basicsb Lenovo SlideNav bar Volume Up button Volume Down buttonChapter 2. Learning the basics c Cap Sensor buttonsHard disk drive indicator Bluetooth indicator System status indicatorsTouchpad indicator Wireless communication indicatorChapter 2. Learning the basics Securing your computer„ Attaching a security lock not supplied „ Using passwords „ Using VeriFacescreen in BIOS setup utility Chapter 2. Learning the basicsChapter 2. Learning the basics Connecting external devices„ Using media cards not supplied Inserting a media card Chapter 2. Learning the basics1 Gently pull the dummy card out of the media card slot Removing a media card„ Connecting a Bluetooth device specific models only „ Connecting a universal serial bus USB deviceEnabling Bluetooth communications Chapter 2. Learning the basicsTo change the GPU, do the following Chapter 2. Learning the basicsGPU is short for graphics processing unit Wired connection Chapter 3. Using the InternetChapter 3. Using the Internet „ Software configuration„ Hardware connection CableChapter 3. Using the Internet Wireless connectionWi-Fi WiMAXChapter 3. Using the Internet „ Using Wi-Fi/WiMax specific models onlyEnabling wireless connection Software configurationChapter 3. Using the Internet „ Using Mobile Broadband specific models onlyTo insert the SIM card Chapter 3. Using the InternetInserting the SIM card Notched Corner Chapter 3. Using the InternetRemoving the SIM card Chapter 3. Using the Internet „ Introduction Chapter 4. OneKey Rescue SystemOneKey Rescue System Chapter 4. OneKey Rescue System „ Using Lenovo OneKey Recovery Within Windows operating systemFor more instructions, see the help file of Lenovo OneKey Recovery Chapter 4. OneKey Rescue System „ Using Lenovo OneKey Rescue System Without Windows operating systemFrequently Asked Questions Chapter 5. TroubleshootingWhere are the recovery discs? Chapter 5. TroubleshootingWhere can I find warranty information? How can I install the device drivers?When do I need to restore the system to the factory status? Chapter 5. TroubleshootingWhat can I do if the backup process fails? Display problems TroubleshootingChapter 5. Troubleshooting Your screen saver or power management may be Chapter 5. TroubleshootingProblems on changing graphics processing unit GPU If you are outputting the screen to an external Chapter 5. TroubleshootingA Password problem Keyboard problems Chapter 5. TroubleshootingSleep or hibernation problems Fn+F8The computer does not return from sleep mode and does not work Chapter 5. TroubleshootingComputer screen problems Chapter 5. TroubleshootingSound problems when the volume is turnedBattery problems Chapter 5. TroubleshootingA hard disk drive problem A startup problemOneKey Rescue System problems Chapter 5. TroubleshootingOther problems You are not currently using a Windows operatingDo not connect or disconnect any external device Chapter 5. Troubleshooting„ To replace the battery Chapter 6. Upgrading and replacing devicesReplacing the battery Chapter 6. Upgrading and replacing devices Chapter 6. Upgrading and replacing devices Replacing memory5 Remove the CPU/Memory compartment cover Chapter 6. Upgrading and replacing devices7 Insert the notched end of the DIMM into the socket Chapter 6. Upgrading and replacing devicesChapter 6. Upgrading and replacing devices Handling a hard disk drive Replacing the hard disk driveChapter 6. Upgrading and replacing devices Chapter 6. Upgrading and replacing devices 3 Remove the battery packTo replace the hard disk drive, do the following 2 Close the computer display, and then turn the computer over5 Remove the frame fixing screw Chapter 6. Upgrading and replacing devices6 Pull the tab in the direction shown by arrow 7 Take out the hard disk drive secured in a metal frameChapter 6. Upgrading and replacing devices A Reinstall the frame fixing screw B Reinstall the compartment coverChapter 6. Upgrading and replacing devices Appendix A. Getting help and service Calling the customer support center Appendix A. Getting help and serviceGetting help on the Web The following items are not covered Appendix A. Getting help and serviceMachine Type and Model Appendix A. Getting help and serviceGetting help around the world Lenovo warranty service telephone numbersAppendix A. Getting help and service Caring for your computer Appendix B. Use and care information„ Be careful about where and how you work Appendix B. Use and care information „ Notice of static-electricityAppendix B. Use and care information „ Be gentle with your computerAppendix B. Use and care information „ Carry your computer properly„ For outdoor use Appendix B. Use and care information „ Handle storage media and drives properly„ Take care in setting passwords „ Data safety„ Other important tips Appendix B. Use and care informationDo not modify or tape the latches to keep the display open or closed Appendix B. Use and care informationAppendix B. Use and care information Accessibility and comfort„ Ergonomic information Appendix B. Use and care information „ What if you are traveling?„ Questions about vision? Appendix B. Use and care information Maintenance„ General tips for maintenance Appendix B. Use and care information Update device drivers and BIOS when neededAppendix B. Use and care information „ Cleaning the cover of your computerAppendix B. Use and care information „ Cleaning your computer keyboardAppendix B. Use and care information „ Cleaning your computer display„ What this warranty covers Appendix C. Lenovo limited warrantyAppendix C. Lenovo limited warranty „ How to obtain warranty service„ What your service provider will do to correct problems Information.” Appendix C. Lenovo limited warrantyAppendix C. Lenovo limited warranty „ Replacement of a product or part„ Use of personal information Appendix C. Lenovo limited warranty„ Your additional responsibilities Appendix C. Lenovo limited warranty „ What this warranty does not cover„ Limitation of liability Appendix C. Lenovo limited warrantyAppendix C. Lenovo limited warranty „ Dispute resolution„ European Economic Area EEA Appendix C. Lenovo limited warranty„ Other rights „ Lenovo Turkey address Appendix C. Lenovo limited warrantyLENOVO TECHNOLOGY B.V. TURKIYE ISTANBUL SUBESI Posta Kodu Tel FaxAppendix C. Lenovo limited warranty Warranty information1 Customer Replaceable Unit “CRU” Service „ Types of warranty serviceAppendix C. Lenovo limited warranty 2 On-site Service Appendix C. Lenovo limited warrantyUnder On-Site Service, your Service Provider will either repair or exchange the product at your location. You must provide a suitable working area to allow disassembly and reassembly of the Lenovo product. For some products, certain repairs may require your Service Provider to send the product to a designated service center 3 Courier or Depot Service5 Product Exchange Service Appendix C. Lenovo limited warrantyproduct as it sees fit. For Mail-in Service, the product will be returned to you at Lenovos expense, unless your Service Provider specifies otherwise Appendix D. Customer replaceable units CRUs Your computer contains the following types of internal CRUs Appendix D. Customer replaceable units CRUsMorrisville, NC U.S.A Attention Lenovo Director of Licensing Appendix E. NoticesLenovo United States, Inc 1009 Think Place - Building One Appendix E. Notices Appendix E. Notices „ Export classification noticeAppendix E. Notices ENERGY STAR model informationWindows Table 1. ENERGY STAR power-management features, by operating systemAppendix E. Notices Appendix E. Notices Wireless related information„ Wireless interoperability Appendix E. Notices „ Usage environment and your healthAppendix E. Notices „ Safety information related to Mobile BroadbandAppendix E. Notices 3 Use of mobile devices on board aircraft is explicitly prohibited by many airlines companies, especially during take-off and landing. The built-in Mobile Broadband module on your computer is a low-power radio transceiver. When it is turned on, it intermittently receives and transmits radio frequency RF energy which could cause interference with the operation of the airplane communication or navigation system. Refer to rules or regulations of your airline company for Mobile Broadband use. Never enable Mobile Broadband feature on your computer unless you are explicitly permitted to do soAppendix E. Notices Electronic emissions notices„ Federal Communications Commission FCC Statement Appendix E. Notices „ Industry Canada Class B Emission Compliance StatementAppendix E. Notices „ Avis de conformité à la réglementation d’Industrie Canada„ German Class B Compliance Statement Deutschland Appendix E. NoticesAppendix E. Notices „ European Union Compliance Statement Class B ComplianceAppendix E. Notices „ Lenovo Product Service Information„ Japanese VCCI Class B Statement Appendix E. Notices „ Japan Compliance Statement for Power line Harmonics„ Korea Class B Türkiye EEE Yönetmeliğine Uygunluk Beyanı Turkish statement of complianceWEEE and recycling statements „ General recycling statementAppendix E. Notices EU WEEE statementsAppendix E. Notices Japan recycling statements„ Collecting and Recycling a Disused Lenovo Computer or Monitor Appendix E. Notices „ Disposing a Disused Battery Pack from Lenovo Notebook Computers„ Disposing of a Lenovo Computer Components Appendix E. Notices Notice on deleting data from your hard diskNotice for users in the U.S.A Appendix E. Notices Format your hard disk, using the software for initializing itModel Name IdeaPad Y460 Appendix F. Features and SpecificationsForm Factor SystemI/O Ports Appendix F. Features and SpecificationsLenovo IdeaPad VeriFace OneKey Index Index Interoperability Warranty informationIndex DO NOT RETURN IT TO THE STORE If your product is not working correctlyLENOVO Lenovo China P/N 147003036 Printed in China New World. New Thinking.TM