Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Lasercompliancestatement(multilingual
translations)................18
Chapter2.Importantservice
information..............25
StrategyforreplacingFRUs.........25
Strategyforreplacingaharddiskdriveora
solid-statedrive............25
Importantnoticeforreplacingasystem
board................26
Howtouseerrorcodes.........26
StrategyforreplacingFRUsforCTO,special-bid,
andstandardmodels............26
Productdefinition............26
FRUidentification...........26
Chapter3.Generalcheckout.....29
Whattodofirst..............29
Checkoutguide..............30
LenovoSolutionCenter.........30
Quicktestprograms...........30
UEFIdiagnosticprogram.........31
Bootablediagnosticprograms.......32
Powersystemcheckout...........33
Checkingtheacpoweradapter......33
Checkingoperationalcharging......33
Checkingthebatterypack........34
Checkingthecoin-cellbattery.......34
Chapter4.Relatedservice
information..............37
Restoringthefactorycontentsbyusingthe
RecoveryDiscSet.............37
RecoveryoverviewfortheWindows8.1operating
system..................38
Refreshingyourcomputer........38
Resettingyourcomputertothefactorydefault
settings................38
Usingtheadvancedstartupoptions....39
RecoveringyouroperatingsystemifWindows
8.1failstostart.............39
Creatingandusingrecoverymedia.....39
Passwords................40
Power-onpassword...........41
Harddiskpassword...........41
Supervisorpassword..........41
Howtoremovethepower-onpassword...41
Howtoremovetheharddiskpassword...42
Powermanagement............42
Screenblankmode(fortheWindows7
operatingsystemonly)..........42
Sleepmode..............42
Hibernationmode...........43
Symptom-to-FRUindex...........43
Numericerrorcodes..........44
Errormessages............46
Beepsymptoms............46
No-beepsymptoms...........46
LCD-relatedsymptoms.........47
Intermittentproblems..........47
Undeterminedproblems.........47
Chapter5.Statusindicators.....49
Chapter6.Specialkeys........51
Chapter7.Locations.........53
Locatingcomputercontrols,connectors,and
indicators.................53
Frontview...............53
Rearview...............54
Bottomview..............54
LocatingFRUsandCRUs..........54
MajorFRUsandCRUs..........56
LCDFRUsandCRUs..........58
MiscellaneouskitsandotherFRUs.....60
LookingupFRUinformation.........60
Chapter8.FRUreplacement
notices................61
Screwnotices...............61
Retainingserialnumbers...........62
Restoringtheserialnumberofthesystem
unit.................62
RetainingtheUUID...........63
©CopyrightLenovo2014,2015
i
