Lenovo B470E User Manual Page 13
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- Table of contents
- TROUBLESHOOTING
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DANGER
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing.
Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical
instruments,andavoiddirectexposuretothebeam.
Liquidcrystaldisplay(LCD)notice
CAUTION:
Forproductswithmercury-containinguorescentlamps(forexample,non-LED)
•Theuorescentlampintheliquidcrystaldisplaycontainsmercury;disposeofaccordingtolocal,
state,orfederallaws.
•TheLCDismadeofglass,androughhandlingordroppingthecomputercancausetheLCDto
break.IftheLCDbreaksandtheinternaluidgetsintoyoureyesoronyourhands,immediately
washtheaffectedareaswithwaterforatleast15minutes;ifanysymptomsarepresentafter
washing,getmedicalcare.
Usingheadphonesorearphones
Ifyourcomputerhasbothaheadphoneconnectorandanaudio-outconnector,alwaysusetheheadphone
connectorforheadphones(alsocalledaheadset)orearphones.
CAUTION:
Excessivesoundpressurefromearphonesandheadphonescancausehearingloss.Adjustmentof
theequalizertomaximumincreasestheearphoneandheadphoneoutputvoltageandthesound
pressurelevel.Therefore,toprotectyourhearing,adjusttheequalizertoanappropriatelevel.
Excessiveuseofheadphonesorearphonesforalongperiodoftimeathighvolumecanbedangerousifthe
outputoftheheadphoneorearphoneconnectorsdonotcomplywithspecicationsofEN50332-2.The
headphoneoutputconnectorofyourcomputercomplieswithEN50332-2Subclause7.Thisspecication
limitsthecomputer’smaximumwidebandtrueRMSoutputvoltageto150mV.Tohelpprotectagainst
hearingloss,ensurethattheheadphonesorearphonesyouusealsocomplywithEN50332-2(Clause7
limits)forawidebandcharacteristicvoltageof75mV.UsingheadphonesthatdonotcomplywithEN
50332-2canbedangerousduetoexcessivesoundpressurelevels.
IfyourLenovocomputercamewithheadphonesorearphonesinthepackage,asaset,thecombinationof
theheadphonesorearphonesandthecomputeralreadycomplieswiththespecicationsofEN50332-1.
Ifdifferentheadphonesorearphonesareused,ensurethattheycomplywithEN50332-1(Clause6.5
LimitationValues).UsingheadphonesthatdonotcomplywithEN50332-1canbedangerousdueto
excessivesoundpressurelevels.
Additionalsafetyinformation
DANGER
Plasticbagscanbedangerous.Keepplasticbagsawayfrombabiesandchildrentoavoiddanger
ofsuffocation.
Noticefortabletpersonalcomputerusers
SafetynoticeforusersinAustralia
©CopyrightLenovo2011,2012
xi
- UserGuide 1
- Contents 3
- Readthisrst 5
- Importantsafetyinformation 6
- Safetyguidelines 7
- Powercordsandpoweradapters 8
- Plugsandoutlets 8
- Powersupplystatement 9
- Externaldevices 9
- Generalbatterynotice 9
- Rechargeablebatterynotice 10
- Lithiumcoincellbatterynotice 10
- Heatandproductventilation 11
- Lasercompliancestatement 12
- Usingheadphonesorearphones 13
- Additionalsafetyinformation 13
- ©CopyrightLenovo2011,2012 15
- Left-sideview 16
- Right-sideview 17
- Frontview 17
- Bottomview 18
- Specications 18
- 6UserGuide 20
- Chapter2.Learningthebasics 21
- Usingacpoweradapterandbattery 22
- Checkingbatterystatus 22
- Chargingthebattery 22
- Removingthebatterypack 23
- Handlingthebattery 23
- Usingthetouchpad 24
- Usingthekeyboard 24
- Numerickeypad 24
- Functionkeycombinations 25
- Connectingexternaldevices 26
- Specialkeysandbuttons 27
- Systemstatusindicators 27
- Securingyourcomputer 28
- Usingpasswords 29
- 16UserGuide 30
- Wiredconnection 31
- Hardwareconnection 31
- Softwareconguration 32
- Wirelessconnection 32
- 20UserGuide 34
- 22UserGuide 36
- Chapter5.Troubleshooting 37
- Troubleshooting 38
- Displayproblems 38
- Apasswordproblem 38
- Sleeporhibernationproblems 39
- Computerscreenproblems 39
- Soundproblems 39
- Batteryproblems 40
- Aharddiskdriveproblem 40
- Astartupproblem 40
- OneKeyRescuesystemproblems 40
- Otherproblems 40
- .Troubleshooting27 41
- 28UserGuide 42
- AppendixA.CRUinstructions 43
- Replacingtheharddiskdrive 44
- 4inthefollowingillustration 45
- AppendixA.CRUinstructions31 45
- Replacingamemorymodule 46
- AppendixA.CRUinstructions33 47
- 34UserGuide 48
- Wirelessrelatedinformation 49
- Exportclassicationnotice 50
- Electronicemissionsnotices 50
- ChinaWEEEstatement 53
- ImportantWEEEinformation 53
- Japanrecyclingstatements 53
- RecyclinginformationforBrazil 54
- Trademarks 55
- 42UserGuide 56
- ChinaRoHS 57
- TurkishRoHS 57
- UkraineRoHS 57
- IndiaRoHS 58
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