Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Chapter2.Importantservice
information..............23
StrategyforreplacingFRUs.........23
Strategyforreplacingaharddiskdrive...24
Importantnoticeforreplacingasystem
board................24
Howtousetheerrorcode........24
StrategyforreplacingFRUsforCTO,CMV,and
GAV...................24
Productdenition............24
FRUidenticationforCTO,CMV,andGAV
products...............25
Chapter3.Generalcheckout.....27
Whattodorst..............27
Checkoutguide..............28
SystemsupportingtheLenovoThinkVantage
ToolboxprogramandthePC-DoctorforDOS
diagnosticsprogram..........28
SystemsupportingtheLenovodiagnostics
programs...............32
Powersystemcheckout...........34
Checkingtheacpoweradapter......34
Checkingoperationalcharging......35
Checkingthebatterypack........35
Checkingthebackupbattery.......35
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
Sleepmode..............41
Hibernationmode...........41
Symptom-to-FRUindex...........42
Numericerrorcodes..........42
Errormessages............44
Beepsymptoms............44
No-beepsymptoms...........45
LCD-relatedsymptoms.........45
Intermittentproblems..........45
Undeterminedproblems.........46
Chapter5.Statusindicators.....47
Chapter6.Specialkeysand
buttons................51
Chapter7.FRUreplacement
notices................53
Screwnotices...............53
Retainingserialnumbers...........54
Restoringtheserialnumberofthesystem
unit.................54
RetainingtheUUID...........55
ReadingorwritingtheECAinformation...55
Chapter8.Removingandreplacinga
FRU..................57
BeforeservicingThinkPadX1andX1Hybrid
models..................58
1000DisablingthebatterypackintheUEFI
BIOS..................58
1010Harddiskdriveandsolidstatedrive....59
1020Keyboard..............61
1030DIMM................64
1040Backupbattery............65
1050PCIExpressMiniCardforwireless
LAN/WiMAX................65
1060PCIExpressMiniCardforwirelessWAN..67
1070mSATAsolidstatedrive.........68
1080InstantMediaModecard........69
1090Keyboardbezelassemblywithngerprint
readerandaudiosubcard..........71
1100Batterypack.............73
1110RJ45subcard............74
1120Fanassembly.............75
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