Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Lasercompliancestatement(multilingual
translations)................17
Chapter2.Importantservice
information..............23
StrategyforreplacingFRUs.........23
Strategyforreplacingaharddiskdrive...24
Importantnoticeforreplacingasystem
board................24
Howtouseerrormessage........24
StrategyforreplacingFRUsforCTO,CMV,and
GAV...................24
Productdenition............24
FRUidenticationforCTO,CMV,andGAV
products...............25
Chapter3.Generalcheckout.....27
Whattodorst..............27
Checkoutguide..............28
DiagnosticsusingPC-DoctorforDOS....28
LenovoThinkVantageToolbox.......31
PC-DoctorforWindows.........31
FRUtests...............31
Powersystemcheckout...........33
Checkingtheacpoweradapter......33
Checkingoperationalcharging......33
Checkingthebatterypack........34
Checkingthebackupbattery.......34
Chapter4.Relatedservice
information..............37
RestoringthefactorycontentsbyusingProduct
Recoverydiscs..............37
RestoringthefactorycontentsbyusingRecovery
DiscSet.................37
Passwords................39
Power-onpassword...........39
Hard-diskpassword...........39
Supervisorpassword..........39
Howtoremovethepower-onpassword...39
Howtoremovethehard-diskpassword...40
Powermanagement............40
Screenblankmode...........40
Sleep(Standby)mode..........41
Hibernationmode...........41
Symptom-to-FRUindex...........42
Numericerrorcodes..........43
Errormessages............47
Beepsymptoms............48
No-beepsymptoms...........48
LCD-relatedsymptoms.........48
Intermittentproblems..........49
Undeterminedproblems.........49
Chapter5.Statusindicators.....51
Chapter6.Fnkeycombinations...53
Chapter7.FRUreplacement
notices................55
Screwnotices...............55
Retainingserialnumbers...........56
Restoringtheserialnumberofthesystem
unit.................56
RetainingtheUUID...........57
ReadingorwritingtheECAinformation...57
Chapter8.Removingandreplacinga
FRU..................59
BeforeservicingThinkPadX220andX220i
models..................59
1010Batterypack.............60
1020Harddiskdrive(HDD)andsolidstatedrive
(SSD)..................61
1030DIMM................63
1040Keyboard..............65
1050Palmrestorpalmrestwithangerprint
reader..................67
1060PCIExpressMiniCardforwireless
LAN/WiMAX................69
1070Backupbattery............71
1080PCIExpressMiniCardforwirelessWAN..72
1090Keyboardbezel............73
1100LCDassembly............75
1110Basecoverassemblyandspeaker
assembly.................78
1120Systemboard,DC-inconnector,fan,and
ExpressCardslotassembly..........82
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