User Manual
Table Of Contents
- Important safety information
- Read this first
- Important information about using your computer
- Conditions that require immediate action
- Service and upgrades
- Power cords and power adapters
- Extension cords and related devices
- Plugs and outlets
- Power supply statement
- External devices
- General battery notice
- Notice for built-in rechargeable battery
- Notice for non-rechargeable coin-cell battery
- Heat and product ventilation
- Electrical current safety information
- Liquid crystal display (LCD) notice
- Using headphones or earphones
- Plastic bag notice
- Glass parts notice
- Chapter 1. Product overview
- Chapter 2. Using your computer
- Registering your computer
- Frequently asked questions
- Getting help about the Windows operating system
- Using the multi-touch screen
- Using the special keys
- Using the ThinkPad pointing device
- Power management
- Cabled Ethernet connections
- Wireless connections
- Using audio features
- Using the camera
- Using a media card or a smart card
- Using an external display
- Traveling with your computer
- Chapter 3. Enhancing your computer
- Chapter 4. Accessibility, ergonomic, and maintenance information
- Chapter 5. Security
- Chapter 6. Advanced configuration
- Chapter 7. Troubleshooting computer problems
- General tips for preventing problems
- Diagnosing problems
- Troubleshooting
- Computer stops responding
- Spills on the keyboard
- Error messages
- Beep errors
- Memory module problems
- Ethernet problems
- Wireless-LAN problem
- Wireless-WAN problem
- Bluetooth problem
- ThinkPad pointing device problems
- Keyboard problems
- Computer screen problems
- External monitor problems
- Audio problems
- Fingerprint reader problems
- Battery problems
- ac power adapter problem
- Power problems
- Power button problem
- Boot problems
- Sleep and hibernation problems
- Hard disk drive problems
- Solid-state drive problem
- Software problem
- USB problem
- Docking station problem
- Chapter 8. Recovery information
- Chapter 9. Replacing devices
- Static electricity prevention
- Disabling the built-in battery
- Replacing the micro SIM card
- Replacing the base cover assembly
- Replacing the dc-in cable and dc-in bracket
- Replacing the USB subcard assembly
- Replacing the M.2 solid-state drive
- Replacing the memory module
- Replacing the wireless-WAN card
- Replacing the keyboard
- Chapter 10. Getting support
- Appendix A. Supplemental information about the Ubuntu operating system
- Appendix B. Regulatory information
- Certification-related information
- Wireless-related information
- Export classification notice
- Electronic emission notices
- Federal Communications Commission Declaration of Conformity
- Industry Canada Class B emission compliance statement
- European Union - Compliance to the Electromagnetic Compatibility (EMC) Directive or Radio Equipment Directive
- German Class B compliance statement
- Korea Class B compliance statement
- Japan VCCI Class B compliance statement
- Japan compliance statement for products which connect to the power mains with rated current less than or equal to 20 A per phase
- Japan notice for ac power cord
- Lenovo product service information for Taiwan
- Eurasian compliance mark
- Brazil audio notice
- Appendix C. WEEE and recycling statements
- Appendix D. Restriction of Hazardous Substances (RoHS) Directive
- Appendix E. ENERGY STAR model information
- Appendix F. Notices
- Appendix G. Trademarks
•Problem:WhenIconnectheadphonestomycomputerwhileplayingsound,aspeakerdoesnot
producesound.
Solution:Whentheheadphonesareattached,thestreamingisautomaticallyredirectedtoit.Ifyouwant
tolistentosoundfromthespeakersagain,ensurethatyousetthosespeakersasthedefaultdevice.For
moreinformation,seethehelpinformationsystemforRealtekHDAudioManager.
•Problem:Sounddoesnotcomefromaheadphoneoraspeaker,orthecomputercannotrecordsounds.
Solution:Toswitchfromonedevicetoanother(forexample,fromaspeakertoaheadphone,orfrom
anexternalmicrophonetoabuilt-inmicrophone),dothefollowing:
1.GotoControlPanel,andensurethatyouviewControlPanelbyCategory.
2.ClickHardwareandSound.
3.ClicktheRealtekHDAudioManagericon.
4.EnsurethatthecomputerisinMULTI-STREAMmodeintheDeviceadvancedsettingswindow.
5.IntheVolumeMixerwindow,selectthedeviceyouwant,forexample,speakers.
6.Playanysoundthroughamusicprogram(forexample,WindowsMediaPlayer).Ensurethatsound
comesfromthespeakersnow.
7.Then,ifyouwouldliketoswitchtoaheadphone,closethemusicprogram.
8.GototheVolumeMixerwindow.Thenselectanotherdevice(forexample,theheadphone).
9.Playanysoundthroughthemusicprogram.Ensurethatsoundcomesfromtheheadphoneattached
directlytothesystem.Formoreinformation,seethehelpinformationsystemofRealtekHDAudio
Manager.
Note:TheVolumeMixerwindowofRealtekHDAudioManagerdisplaysallaudiodevicesdetected
inthesystem,suchasspeakersforaplaybackdevice,orabuilt-inmicrophoneforarecording
device.Acheckmarkbesidetheaudiodeviceshowsthatthedevicehasbeenselected.
Fingerprintreaderproblems
•Problem:Thesurfaceofthereaderisdirty,stained,orwet.
Solution:Gentlycleanthesurfaceofthereaderwithadry,soft,lint-freecloth.
•Problem:Thereaderoftenfailstoenrollorauthenticateyourfingerprint.
Solution:Ifthesurfaceofthereaderisdirty,stained,orwet,gentlycleanthesurfaceofthereader
withadry,soft,lint-freecloth.
Fortipsonhowtomaintainthefingerprintreader,see“Usingthefingerprintreader”onpage62
.
Batteryproblems
•Problem:Thebatterycannotbefullychargedinthestandardchargetimewhenthecomputerispowered
off.
Solution:Thebatterymightbeover-discharged.Dothefollowing:
1.Turnoffthecomputer.
2.Ensurethattheover-dischargedbatteryisinthecomputer.
3.Connecttheacpoweradaptertothecomputerandletitcharge.
Ifaquickchargerisavailable,useittochargetheover-dischargedbattery.
Ifthebatterycannotbefullychargedin24hours,useanewbattery.
•Problem:Thecomputershutsdownbeforethebatterystatusiconshowsthatthebatteryisempty.
Solution:Dischargeandrechargethebattery.
•Problem:Thecomputeroperatesafterthebatterystatusiconshowsthatthebatteryisempty.
98T470sUserGuide