Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Lasercompliancestatement(multilingual
translations)................17
Chapter2.Importantservice
information..............23
StrategyforreplacingFRUs.........23
Strategyforreplacingaharddiskdrive...24
Importantnoticeforreplacingasystem
board................24
Howtouseerrorcodes.........24
StrategyforreplacingFRUsforCTO,CMV,and
GAVproducts...............24
Productdenition............24
FRUidenticationforCTO,CMV,andGAV
products...............25
Chapter3.Generalcheckout.....27
Whattodorst..............27
Checkoutguide..............28
LenovoSolutionCenter.........28
Quicktestprograms...........28
UEFIdiagnosticprogram.........29
Bootablediagnosticprograms.......29
Powersystemcheckout...........30
Checkingtheacpoweradapter......30
Checkingoperationalcharging......31
Checkingthebatterypack........31
Checkingthebackupbattery.......32
Chapter4.Relatedservice
information..............33
Restoringthefactorycontentsbyusingthe
productRecoveryDiscSet..........33
RecoveryoverviewfortheWindows8operating
system..................34
Refreshingyourcomputer........34
Resettingyourcomputertothefactorydefault
settings................34
Usingtheadvancedstartupoptions....35
RecoveringyouroperatingsystemifWindows
8failstostart.............35
Creatingandusingrecoverymedia.....35
Passwords................36
Power-onpassword...........37
Harddiskpassword...........37
Supervisorpassword..........37
Howtoremovethepower-onpassword...37
Howtoremovetheharddiskpassword...38
Powermanagement............38
Screenblankmode(fortheWindows7
operatingsystemonly)..........38
Sleepmode..............38
Hibernationmode...........39
Symptom-to-FRUindex...........39
Numericerrorcodes..........40
Errormessages............40
No-beepsymptoms...........41
LCD-relatedsymptoms.........41
Intermittentproblems..........42
Undeterminedproblems.........42
Chapter5.Statusindicators.....43
Chapter6.Specialkeys........45
Chapter7.Locations.........47
Locatingcomputercontrols,connectors,and
indicators.................47
Frontview...............48
Rearview...............50
Bottomview..............50
LocatingFRUsandCRUs..........50
MajorFRUsandCRUs..........52
LCDFRUsandCRUs..........54
MiscellaneouspartsandotherFRUs....55
LookingupFRUinformation.........55
Chapter8.FRUreplacement
notices................57
Screwnotices...............57
Retainingserialnumbers...........58
Restoringtheserialnumberofthesystem
unit.................58
RetainingtheUUID...........59
ReadingorwritingtheECAinformation...59
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