Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Lasercompliancestatement(multilingual
translations)................16
Chapter2.Importantservice
information..............23
StrategyforreplacingFRUs.........23
Strategyforreplacingaharddiskdrive...24
Importantnoticeforreplacingasystem
board................24
Howtouseerrormessage........24
StrategyforreplacingFRUsforCTO,CMV,and
GAV...................25
Productdenition............25
FRUidenticationforCTO,CMV,andGAV
products...............25
Chapter3.Generalcheckout.....27
Whattodorst..............27
Checkoutguide..............28
SystemsupportingtheLenovoThinkVantage
ToolboxprogramandthePC-DoctorforDOS
diagnosticsprogram..........28
SystemsupportingtheLenovodiagnostics
programs...............33
Powersystemcheckout...........35
Checkingtheacpoweradapter......35
Checkingoperationalcharging......36
Checkingthebatterypack........36
Checkingthebackupbattery.......37
Chapter4.Relatedservice
information..............39
RestoringthefactorycontentsbyusingProduct
Recoverydiscs..............39
RestoringthefactorycontentsbyusingRecovery
DiscSet.................39
Passwords................41
Power-onpassword...........41
Hard-diskpassword...........41
Supervisorpassword..........41
Howtoremovethepower-onpassword...41
Howtoremovethehard-diskpassword...42
Powermanagement............42
Screenblankmode...........42
Sleep(Standby)mode..........43
Hibernationmode...........43
Symptom-to-FRUindex...........44
Numericerrorcodes..........45
Errormessages............49
Beepsymptoms............50
No-beepsymptoms...........50
LCD-relatedsymptoms.........51
Intermittentproblems..........51
Undeterminedproblems.........51
Chapter5.Statusindicators.....53
Chapter6.Fnkeycombinations...55
Chapter7.FRUreplacement
notices................57
Screwnotices...............57
Retainingserialnumbers...........58
Restoringtheserialnumberofthesystem
unit.................58
RetainingtheUUID...........59
ReadingorwritingtheECAinformation...59
Chapter8.Removingandreplacinga
FRU..................61
BeforeservicingThinkPadX220TabletandX220i
Tabletmodels...............62
1010Digitizerpen.............63
1020Batterypack.............63
1030Harddiskdrive(HDD)andsolidstatedrive
(SSD)..................64
1040DIMM................66
1050Hingecaps..............68
1060Keyboard..............68
1070Palmrest..............71
1080Backupbattery............73
1090PCIExpressMiniCardforwireless
LAN/WiMAX................75
1100PCIExpressMiniCardforwirelessWAN..77
1110Bluetoothdaughtercard........78
1120Keyboardbezel............79
1130LCDassembly............81
©CopyrightLenovo2012
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