Lenovo 57323748, B550 Troubleshooting Sound problems, Battery problems, Hard disk drive problem

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Chapter 5. Troubleshooting

Sound problems

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

Battery problems

Your computer shuts down before the battery status indicator shows empty.

-or-

Your computer operates after the battery status indicator shows empty.

The operating time for a fully charged battery is short.

The computer does not operate with a fully charged battery.

The battery does not charge.

•Discharge and recharge the battery.

•For details, see “Handling the battery” in Chapter 2.

•The surge protector in the battery might be active. Turn off the computer for one minute to reset the protector; then turn on the computer again.

•For details, see “Handling the battery” in Chapter 2.

A hard disk drive problem

The hard disk drive does not work.	• In the Boot menu in BIOS Setup Utility, make sure that the hard
	disk drive is included in the Boot priority order correctly.

A startup problem

The Microsoft® Windows operating	• Use the OneKey Rescue system to help solve or identify your
system does not start.	problem. For details about OneKey Rescue system, see “Chapter 4.
	OneKey Rescue system” on page 19.

OneKey Rescue system problems

Backup cannot be made.	• You are not currently using a Windows operating system.
	• There is not enough space to store the backed up data. You will need
	to free more hard disk space on your system partition (C drive).
Fail to restore system partition to	• The system partition, such as the partition size or the drive capacity
factory default.	of C, has been modified.

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Contents Lenovo B550 First Edition January Copyright Lenovo Dear user Explanation of hard disk capacity Contents Important safety information Important safety information„ Read this first UnpackImportant safety information Correct usage proceduresService and upgrades Getting to know your computer Getting to know your computer Power button System statusSelect models only TouchpadGetting to know your computer Fan louversRJ-45 port VGA portUSB port Optical driveSpeakers Microphone jack Headphone jackSpring loaded Hard disk drive Battery latchManual Battery pack „ Connecting to the power „ Configuring the operating systemLearning the basics „ Reading the manualsPutting your computer into sleep state „ Shutting down your computerLearning the basics Using AC adapter and battery „ Checking battery status„ Charging the battery „ Removing the battery pack„ Handling the battery Left click button„ Numeric keypad „ Function key combinationsLearning the basics OneKey Rescue system button System status indicators E f„ Attaching a security lock not supplied „ Using VeriFace„ Using passwords Connecting external devices „ Connecting a universal serial bus USB device„ Connecting a Bluetooth enabled device select models only Enabling Bluetooth communications„ Hardware connection Using the Internet„ Software configuration Wireless connection „ Using Wi-Fi/WiMAXUsing the Internet Enabling wireless connectionOneKey Rescue system „ IntroductionTroubleshooting Frequently asked questions Troubleshooting What can I do if the backup process fails?Display problems Password problemTroubleshooting Sleep or hibernation problems Computer screen problemsTroubleshooting Sound problems Battery problemsHard disk drive problem Startup problemTroubleshooting Other problems Upgrading and replacing devices Replacing the batteryTo replace the battery, do the following Replacing the hard disk drive Upgrading and replacing devicesHandling a hard disk drive To replace the hard disk drive, do the followingUpgrading and replacing devices To install an SO-DIMM, do the following Upgrading and replacing devices Removing the optical drive To remove the optical drive, do the followingUpgrading and replacing devices Appendix A. Getting help and service Calling the customer support centerAppendix A. Getting help and service Getting help around the worldLenovo warranty service telephone numbers Warranty Service Telephone Numbers„ Be careful about where and how you work Appendix B. Use, and care informationCaring for your computer „ Notice of static-electricity„ Be gentle with your computer „ Carry your computer properly„ For outdoor use „ Handle storage media and drives properly„ Other important tips „ Data safety„ Take care in setting passwords „ Questions about vision? „ Ergonomic information„ What if you are traveling? „ General tips for maintenance „ Cleaning your computer display „ Cleaning the cover of your computer„ Cleaning your computer keyboard Appendix C. Lenovo limited warranty „ What this warranty covers„ How to obtain warranty service „ What your service provider will do to correct problems„ Your additional responsibilities „ Replacement of a product or partAppendix C. Lenovo limited warranty „ Limitation of liability „ What this warranty does not cover„ Use of personal information „ European Economic Area EEA „ Dispute resolution„ Other rights „ Suplemento de Garantía para México „ Lenovo Turkey address Lenovo Technology B.V. Turkiye Istanbul Subesi„ Types of warranty service Customer Replaceable Unit CRU Service On-site ServiceCourier or Depot Service Customer Carry-In or Mail-In ServiceAppendix C. Lenovo limited warranty Product Exchange Service Appendix D. Customer replaceable units CRUs Appendix E. Notices „ Export classification notice Appendix E. NoticesWindows XP Energy Star model informationWindows Wireless related information „ Wireless interoperability„ Safety information related to Mobile Broadband „ Usage environment and your healthTV tuner information Appendix E. Notices Electronic emissions notices „ Federal Communications Commission FCC Statement„ German Class B Compliance Statement „ Industry Canada Class B Emission Compliance Statement„ Avis de conformité à la réglementation d’Industrie Canada „ European Union Compliance Statement Class B Compliance Turkish statement of compliance Türkiye EEE Yönetmeliğine Uygunluk BeyanıWeee and recycling statements „ Disposing of a Lenovo Computer Components Japan recycling statementsEU Weee statements Appendix E. Notices Appendix F. Features and specifications Trademarks Index Index Page Do not Return IT to the Store New World. New Thinking.TM