Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Chapter2.Importantservice
information..............19
StrategyforreplacingFRUs.........19
Strategyforreplacingaharddiskdrive...20
Importantnoticeforreplacingasystem
board................20
Howtouseerrormessage........20
StrategyforreplacingFRUsforCTO,CMV,and
GAV...................20
Productdenition............20
FRUidenticationforCTO,CMV,andGAV
products...............21
Chapter3.Generalcheckout.....23
Whattodorst..............23
Checkoutguide..............24
SystemsupportingtheLenovoThinkVantage
ToolboxprogramandthePC-DoctorforDOS
diagnosticsprogram..........24
SystemsupportingtheLenovodiagnostics
programs...............28
Powersystemcheckout...........30
Checkingtheacpoweradapter......30
Checkingoperationalcharging......31
Checkingthebatterypack........31
Checkingthebackupbattery.......31
Chapter4.Relatedservice
information..............33
RestoringthefactorycontentsbyusingRecovery
DiscSet.................33
Passwords................34
Power-onpassword...........34
Hard-diskpassword...........34
Supervisorpassword..........35
Howtoremovethepower-onpassword...35
Howtoremovethehard-diskpassword...35
Powermanagement............36
Screenblankmode...........36
Sleep(standby)mode..........36
Hibernationmode...........37
Symptom-to-FRUindex...........37
Numericerrorcodes..........38
Errormessages............38
No-beepsymptoms...........38
LCD-relatedsymptoms.........39
Intermittentproblems..........39
Undeterminedproblems.........39
Chapter5.Statusindicators.....41
Chapter6.Specialkeys........43
Chapter7.FRUreplacement
notices................45
Screwnotices...............45
Retainingserialnumbers...........46
Restoringtheserialnumberofthesystem
unit.................46
RetainingtheUUID...........47
ReadingorwritingtheECAinformation...47
Chapter8.Removingandreplacinga
FRU..................49
BeforeservicingThinkPadEdgeE220sand
S220..................49
1000DisablingthebatterypackinUEFIBIOS..50
1010Harddiskdriveorsolidstatedrive
assembly.................50
1020Keyboard..............52
1030Topcaseassembly...........54
1040Backupbattery............56
1050Speakerassembly...........57
1080Batterypack.............58
1090DIMM................58
1100PCIExpressMiniCardforwirelessLAN..59
1110PCIExpressMiniCardforwirelessWAN..60
1120Bluetoothdaughtercard........62
1130DC-insubcard............62
1140Systemboardassemblyandfanassembly.64
1150HDDsubcard.............67
1160I/Osubcard.............68
1170LCDunit...............69
Chapter9.Locations.........71
Frontview................71
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