Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............1
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Chapter2.Importantservice
information..............17
StrategyforreplacingFRUs.........17
Strategyforreplacingaharddiskdrive,a
solid-statedrive,oranmSATAsolid-state
drive.................18
Importantnoticeforreplacingasystem
board................18
Howtouseerrormessage........18
StrategyforreplacingFRUsforCTO,CMV,and
GAV...................19
Productdenition............19
FRUidenticationforCTO,CMV,andGAV
products...............19
Chapter3.Generalcheckout.....21
Whattodorst..............21
Checkoutguide..............22
LenovoSolutionCenter.........22
Quicktestprograms...........22
UEFIdiagnosticprogram.........23
Bootablediagnosticprograms.......23
Powersystemcheckout...........24
Checkingtheacpoweradapter......24
Checkingoperationalcharging......25
Checkingthebatterypack........25
Checkingthebackupbattery.......26
Chapter4.Relatedservice
information..............27
Restoringthefactorycontentsbyusingthe
RecoveryDiscSet.............27
UsingtheWindowsrecoveryprogramsonthe
Windows8operatingsystem.........28
Passwords................30
Power-onpassword...........31
Harddiskpassword...........31
Supervisorpassword..........31
Howtoremovethepower-onpassword...31
Howtoremovetheharddiskpassword...32
Powermanagement............32
Screenblankmode(fortheWindows7
operatingsystemonly)..........32
Sleepmode..............32
Hibernationmode...........33
Symptom-to-FRUindex...........33
Numericerrorcodes..........34
Errormessages............38
Beepsymptoms............39
No-beepsymptoms...........40
LCD-relatedsymptoms.........40
Intermittentproblems..........41
Undeterminedproblems.........41
Chapter5.Statusindicators.....43
Chapter6.Fnkeycombinations...47
Chapter7.Locations.........49
Locatingcomputercontrols,connectors,and
indicators.................49
Frontview...............49
Rearview...............50
Bottomview..............50
LocatingFRUsandCRUs..........50
MajorFRUsandCRUs..........52
LCDFRUsandCRUs..........54
MiscellaneouskitsandotherFRUs.....55
LookingupFRUinformation.......56
Chapter8.FRUreplacement
notices................57
Screwnotices...............57
Retainingserialnumbers...........58
Restoringtheserialnumberofthesystem
unit.................58
RetainingtheUUID...........59
ReadingorwritingtheECAinformation...59
Chapter9.Removingorreplacinga
FRU..................61
Generalguidelines.............61
Beforeservicingthecomputer........62
RemovingtheSIMcard.........62
1010TabletDigitizerPen...........62
1020Batterypack.............63
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