Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Lasercompliancestatement(multilingual
translations)................19
Chapter2.Importantservice
information..............27
StrategyforreplacingFRUs.........27
Strategyforreplacingaharddiskdrive...28
Importantnoticeforreplacingasystem
board................28
Howtouseerrormessage........28
StrategyforreplacingFRUsforCTO,CMV,and
GAV...................28
Productdenition............28
FRUidenticationforCTO,CMV,andGAV
products...............29
Chapter3.Generalcheckout.....31
Whattodorst..............31
Checkoutguide..............32
LenovoSolutionCenter.........32
Quicktestprograms...........32
UEFIdiagnosticprogram.........33
Bootablediagnosticprograms.......33
Powersystemcheckout...........34
Checkingtheacpoweradapter......34
Checkingoperationalcharging......35
Checkingthebatterypack........35
Checkingthebackupbattery.......36
Chapter4.Relatedservice
information..............37
RestoringthefactorycontentsbyusingRecovery
DiscSet.................37
Passwords................38
Power-onpassword...........38
Hard-diskpassword...........38
Supervisorpassword..........39
Howtoremovethepower-onpassword...39
Howtoremovethehard-diskpassword...39
Powermanagement............40
Screenblankmode...........40
Sleepmode..............40
Hibernationmode...........41
Symptom-to-FRUindex...........41
Numericerrorcodes..........42
Errormessages............42
No-beepsymptoms...........43
Beeperrors..............43
LCD-relatedsymptoms.........44
Intermittentproblems..........44
Undeterminedproblems.........44
Chapter5.Statusindicators.....47
Chapter6.Fnkeycombinations...49
Chapter7.Locations.........51
Locatingcomputercontrols,connectors,and
indicators.................51
Frontview...............51
Rearview...............52
Bottomview..............52
LocatingFRUsandCRUs..........52
MajorFRUsandCRUs..........54
LCDFRUsandCRUs..........56
LookingupFRUinformation.........57
Chapter8.FRUreplacement
notices................59
Screwnotices...............59
Retainingserialnumbers...........60
Restoringtheserialnumberofthesystem
unit.................60
RetainingtheUUID...........61
ReadingorwritingtheECAinformation...61
Chapter9.Removingorreplacinga
FRU..................63
Beforeservicingthecomputer........64
1010Batterypack.............64
1020Bottomdoor.............65
1030Opticaldrive.............66
1040Harddiskdriveorsolid-statedrive
assembly.................68
1050Keyboard..............69
1060Memorymodule............72
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