Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............1
Safetyinspectionguide............2
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Chapter2.Importantservice
information..............19
StrategyforreplacingFRUs.........19
Strategyforreplacingaharddiskdriveora
solid-statedrive............19
Importantnoticeforreplacingasystem
board................20
Howtouseerrormessage........20
StrategyforreplacingFRUsforCTO,special-bid,
andstandardmodels............20
Productdenition............20
FRUidentication............20
Chapter3.Generalcheckout.....23
Whattodorst..............23
Checkoutguide..............24
LenovoSolutionCenter.........24
Quicktestprograms...........24
UEFIdiagnosticprogram.........25
Bootablediagnosticprograms.......26
Powersystemcheckout...........26
Checkingtheacpoweradapter......27
Checkingthebatteryandoperational
charging...............27
Checkingthecoin-cellbattery.......28
Chapter4.Relatedservice
information..............29
Restoringthefactorycontentsbyusingthe
RecoveryDiscSet.............29
UsingtheWindowsrecoveryprogramsonthe
Windows8operatingsystem.........30
Passwords................31
Power-onpassword...........31
Harddiskpassword...........31
Supervisorpassword..........32
Howtoremovethepower-onpassword...32
Howtoremovetheharddiskpassword...32
Powermanagement............33
Screenblankmode(fortheWindows7
operatingsystemonly)..........33
Sleepmode..............33
Hibernationmode...........33
Symptom-to-FRUindex...........34
Numericerrorcodes..........34
Errormessages............36
Beepsymptoms............36
No-beepsymptoms...........36
LCD-relatedsymptoms.........36
Intermittentproblems..........37
Undeterminedproblems.........37
Chapter5.Statusindicators.....39
Chapter6.Functionkeys.......41
Chapter7.Locations.........43
Locatingcomputercontrols,connectors,and
indicators.................43
Frontview...............43
Leftview...............44
Bottomview..............44
LocatingFRUsandCRUs..........45
MajorFRUsandCRUs..........46
LCDFRUs..............48
MiscellaneouspartsandotherFRUs....49
LookingupFRUinformation.........49
Chapter8.FRUreplacement
notices................51
Screwnotices...............51
Retainingserialnumbers...........52
Restoringtheserialnumberofthesystem
unit.................52
RetainingtheUUID...........53
Chapter9.Removingorreplacinga
FRU..................55
Generalguidelines.............55
Beforeservicingthecomputer........56
1010Externalbatterypack..........56
1020Bigdoor...............57
1030Harddiskdriveorsolid-statedrive....59
1040Opticaldrive.............60
1050M.2wirelessLANcard.........61
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