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Contents
Aboutthismanual...........iii Chapter1.Safetyinformation.....1
Chapter2.Importantservice information..............19
Chapter3.Generalcheckout.....23
Chapter4.Relatedservice information..............31
Chapter9.Locations.........79
Chapter10.Partslist.........81
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AppendixA.Notices........103
Aboutthismanual
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Chapter1.Safetyinformation
Generalsafety
Electricalsafety
Safetyinspectionguide
Handlingdevicesthataresensitivetoelectrostaticdischarge
Groundingrequirements
Safetynotices(multilingualtranslations)
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Chapter2.Importantserviceinformation
StrategyforreplacingFRUs
Strategyforreplacingaharddiskdrive
Importantnoticeforreplacingasystemboard
Howtouseerrormessage
StrategyforreplacingFRUsforCTO,CMV ,andGAV Productdenition
FRUidenticationforCTO,CMV,andGAVproducts
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Chapter3.Generalcheckout
Whattodorst
Checkoutguide
DiagnosticsusingPC-DoctorforDOS
Testingthecomputer
DetectingsysteminformationwithPC-Doctor
LenovoThinkVantageT oolbox
FRUtests
Powersystemcheckout
Checkingtheacpoweradapt er
Checkingoperationalcharging
Checkingthebatterypack
Checkingthebackupbattery
Chapter4.Relatedserviceinformation
RestoringthefactorycontentsbyusingRecoveryDiscSet
Passwords
Power-onpassword
Harddiskpassword
Supervisorpassword
Howtoremovethepower-onpassword
Howtoremovethehard-diskpassword
Powermanagement
Screenblankmode
Sleep(standby)mode
Hibernationmode
Symptom-to-FRUindex
Note:ForadevicenotsupportedbydiagnosticcodesintheThinkPadNotebooks,seethemanualfor thatdevice.
Numericerrorcodes
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Errormessages
Beepsymptoms
No-beepsymptoms
LCD-relatedsymptoms
Intermittentproblems
Undeterminedproblems
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Chapter5.Statusindicators
Thischapterpresentsthesystemstatusindicatorsthatshowthestatusofthecomputer .
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Chapter6.Fnkeycombinations
ThefollowingtableshowsthefunctionofeachcombinationofFnwithafunctionkey.
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Chapter7.FRUreplacementnotices
Screwnotices
Retainingserialnumbers
Restoringtheserialnumberofthesystemunit
RetainingtheUUID
ReadingorwritingtheECAinformation
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Chapter8.RemovingandreplacingaFRU
BeforeservicingThinkPadX121emodels
1010Batterypack
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1020Bottomslotcover
1030Memorymodules
1040Harddiskdriveorsolidstatedriveassembly
1050PCIExpressMiniCardforwirelessLAN
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1060PCIExpressMiniCardforwirelessWAN
Foraccess,removetheseFRUsinorder: 1010Batterypackonpage50 1020Bottomslotcoveronpage51
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1070Keyboard
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1080Powersubcardandmicrophone
1090T opcaseassembly
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1100Bluetoothdaughtercard
1110Speakerassembly
1120I/Oboard
1130Systemboardassembly,fanassembly,andbackupbattery
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1140CRTboardassembly(withcable)
1150DC-insubcardandbasecoverassembly
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2010LCDunit
72
2020LCDbezelassembly
2030Integratedcamera
2040LCDpanel,LCDcable,andhinges
2050WirelessLANantennaassembly,wirelessWANantennaassembly, andL CDrearcoverassembly
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Chapter9.Locations
ThischapterpresentsthelocationsoftheThinkPadX121ehardwarecomponents.
Frontview
Rearview
Bottomview
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Chapter10.Partslist
Overall
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LCDFRUs
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Keyboard
94
Miscellaneousparts
acpoweradapters
Powercords
AThinkPadpowercordforaspeciccountryorregionisusuallyavailableonlyinthatcountryorregion:
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Recoverydiscs WindowsXPProfessional(32-bit)DVDs
WindowsVistaBusiness(32-bit)DVDs
Windows7HomeBasic(32-bit)DVDs
Windows7HomePr emium(32-bit)DVDs
Windows7HomePremium(64-bit)DVDs
Windows7Professional(32-bit)DVDs
Windows7Professional(64-bit)DVDs
Windows7Ultimate(32-bit)DVDs
Windows7Ultimate(64-bit)DVDs
Windows7Starter(32-bit)DVDs
Commonservicetools
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AppendixA.Notices
Electronicemissionsnotices
Trademarks
