Lenovo M490s notebook User Manual Page 40
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Bottomview
2
10
1
4
3
4
5
6
7
8
9
Figure2.Bottomview
1Batterylock6Fanlouvers
2Batterypack
7USB2.0connector
3Batterylatch
8Comboaudiojack
4Speakers
9Mediacardreaderslot
5Securitykeyhole
10Bottomslotcover
Note:Thememorymodules,harddiskdrive,andwirelesscardsarelocatedunderneaththebottomslot
cover.
LocatingFRUsandCRUs
Thistopicintroducesthefollowingserviceparts:
•“MajorFRUsandCRUs”onpage35
•“LCDFRUsandCRUs”onpage36
Notes:
•EachFRUisavailableforalltypesormodels,unlessotherwisespecied.
•Acustomerreplaceableunit(CRU)isidentiedbyasingleasterisk(*)ortwoasterisks(**)intheCRUIDcolumn.
Asingleasterisk(*)meansthatthepartisaSelf-serviceCRU;twoasterisks(**)meansthatthepartisan
Optional-serviceCRU.ALetter“N”intheCRUIDcolumnmeansthatthepartisnotaCRU.
•CRUstatementforcustomers:
Youcanresolvesomeproblemswithyourproductwithareplacementpartyoucaninstallyourself,calleda
“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasself-serviceCRUsandothersare
designatedasoptional-serviceCRUs.Installationofself-serviceCRUsisyourresponsibility.Foroptional-service
CRUs,youcaneitherinstalltheCRUyourselforyoucanrequestthataServiceProviderinstalltheCRUaccording
tothewarrantyserviceforyourproduct.IfyouintendoninstallingtheCRU,LenovowillshiptheCRUtoyou.CRU
informationandreplacementinstructionsareshippedwithyourproductandareavailablefromLenovoatanytime
uponrequest.YoucanndalistofCRUsforyourproductinthisHardwareMaintenanceManual.Anelectronic
versionofthismanualcanbefoundathttp://www.lenovo.com/UserManuals.Followtheon-screeninstructionsto
ndthemanualforyourproduct.YoumightberequiredtoreturnthedefectiveCRU.Whenreturnisrequired:(1)
returninstructions,aprepaidshippinglabel,andacontainerwillbeincludedwiththereplacementCRU;and(2)you
mightbechargedforthereplacementCRUifLenovodoesnotreceivethedefectiveCRUwithinthirty(30)daysof
yourreceiptofthereplacementCRU.SeeyourLenovoLimitedWarrantydocumentationforfulldetails.
LenovocomputerscontainthefollowingtypesofCRUs:
34HardwareMaintenanceManual
- HardwareMaintenanceManual 1
- FirstEdition(January2013) 2
- ©CopyrightLenovo2013 2
- Contents 3
- Aboutthismanual 5
- Chapter1.Safetyinformation 7
- Safetyinspectionguide 9
- Groundingrequirements 10
- Chapter1.Safetyinformation5 11
- 6HardwareMaintenanceManual 12
- .Safetyinformation7 13
- Chapter1.Safetyinformation9 15
- VORSICHT 17
- .Safetyinformation11 17
- 12HardwareMaintenanceManual 18
- .Safetyinformation13 19
- 14HardwareMaintenanceManual 20
- .Safetyinformation15 21
- 16HardwareMaintenanceManual 22
- .Safetyinformation17 23
- 18HardwareMaintenanceManual 24
- .Safetyinformation19 25
- 20HardwareMaintenanceManual 26
- Chapter2.Generalcheckout 27
- Powersystemcheckout 28
- Checkingtheacpoweradapter 28
- Checkingoperationalcharging 29
- Checkingthebatterypack 29
- Recoveringthecomputersettings 31
- Usingpasswords 31
- Powermanagement 32
- Screenblankmode 32
- Sleepmode 32
- Hibernationmode 33
- 28HardwareMaintenanceManual 34
- Chapter4.Statusindicators 35
- 30HardwareMaintenanceManual 36
- Chapter5.Fnkeycombinations 37
- 32HardwareMaintenanceManual 38
- Chapter6.Locations 39
- Bottomview 40
- LocatingFRUsandCRUs 40
- MajorFRUsandCRUs 41
- LCDFRUsandCRUs 42
- LookingupFRUinformation 43
- 38HardwareMaintenanceManual 44
- Screwnotices 46
- Generalguidelines 47
- 1010Batterypack 48
- 1020Bottomslotcover 48
- 1030Memorymodules 49
- 1,andthencarefullyremovethe 50
- 1040Harddiskdriveassembly 51
- StepScrew(quantity)Color 52
- Black0.392Nm 52
- (4.0kgf-cm) 52
- 1060mSATAsolid-statedrive 53
- 1070Backupbattery 54
- 1080Basecover 55
- 8,returntheoldpart 56
- 1090Mediacardreaderslotboard 57
- Detachthengerprintconnector 59
- .RemovingorreplacingaFRU53 59
- 1120Thermalmoduleassembly 60
- 1130DC-inconnector 62
- 1140Powerboard 63
- 1150Systemboardassembly 65
- Black0.181Nm 69
- (1.85kgf-cm) 69
- 2010LCDfrontbezel 70
- 2020Cameraandmicrophoneboard 71
- 70HardwareMaintenanceManual 76
- AppendixA.Notices 77
- Electronicemissionsnotices 78
- Trademarks 78
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