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Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberoormatsthatcontainsmallconductiveberstodecreaseelectrostaticdischarges.
Donotusethistypeofmattoprotectyourselffromanelectricshock.
•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–RemovingorinstallingFieldReplaceableUnits(FRU)
•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer
topower-offthewallboxthatsuppliespowertothemachineandtolockthewallboxintheoffposition.
•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowingprecautions:
–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.
Remember:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.
–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Remember:Theremustbeacompletecircuittocauseanelectricshock.Byobservingtheabove
rule,youmaypreventacurrentfrompassingthroughyourbody.
–Whenusingatester,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor
thattester.
–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas
metaloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;theseinstructionsarein
thesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuringhighvoltages.
•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.
•Donotusewornorbrokentoolsandtesters.
•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpowered-off.
•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistoors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.
•Donottouchliveelectricalcircuitswiththereectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.
•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
placesinamachine:
–Powersupplyunits
–Pumps
–Blowersandfans
–Motorgenerators
andsimilarunits.(Thispracticeensurescorrectgroundingoftheunits.)
•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.
2LenovoM5800HardwareMaintenanceManual
- LenovoM5800 1
- HardwareMaintenanceManual 1
- FirstEdition(August2013) 2
- Contents 3
- Chapter9.Additionalservice 4
- AppendixA.Notices.........109 4
- Index.................111 4
- Aboutthismanual 5
- Chapter1.Safetyinformation 7
- Voltage-selectionswitch 9
- Safetyinspectionguide 9
- Groundingrequirements 10
- Chapter1.Safetyinformation5 11
- .Safetyinformation7 13
- Chapter1.Safetyinformation9 15
- .Safetyinformation11 17
- .Safetyinformation13 19
- Chapter1.Safetyinformation15 21
- ≥18kg≥32kg≥55kg 23
- .Safetyinformation19 25
- Chapter1.Safetyinformation23 29
- Chapter2.Generalinformation 33
- LenovoSupportWebsite 34
- Chapter3.Generalcheckout 35
- Basictroubleshooting 37
- Troubleshootingprocedure 38
- Troubleshooting 38
- Audioproblems 39
- CDproblems 40
- DVDproblems 41
- Intermittentproblems 42
- Harddiskdriveproblems 43
- Monitorproblems 45
- Networkingproblems 46
- AwirelessLANproblem 48
- AwirelessWANproblem 48
- ABluetoothproblem 48
- Optionproblems 49
- Performanceandlockupproblems 49
- Printerproblems 51
- Serialportproblems 51
- Softwareproblems 52
- USBproblems 52
- Diagnostics 53
- LenovoSolutionCenter 53
- Viewingandchangingsettings 55
- Usingpasswords 55
- Passwordconsiderations 56
- Power-OnPassword 56
- AdministratorPassword 56
- HardDiskPassword 56
- Enablingordisablingadevice 57
- Selectingastartupdevice 57
- EnablingErPcompliancemode 58
- ExitingtheSetupUtilityprogram 59
- Chapter6.Symptom-to-FRUindex 61
- POSTerrorcodes 62
- .Symptom-to-FRUindex57 63
- Miscellaneouserrormessages 64
- Undeterminedproblems 65
- Chapter7.Locations 67
- LocatingmajorFRUs 68
- .Locations63 69
- Locatingpartsonthesystemboard 71
- Locatinginternaldrives 72
- .Locations67 73
- Chapter8.ReplacingFRUs 75
- Attention: 76
- InstallingorreplacingaPCIcard 77
- Figure9.RemovingaPCIcard 79
- Replacingthebattery 80
- Replacingtheopticaldrive 83
- Replacingthemicroprocessor 88
- Chapter8.ReplacingFRUs83 89
- Replacingthesystemboard 90
- Chapter8.ReplacingFRUs85 91
- .ReplacingFRUs87 93
- Replacingthesystemfan 95
- Figure28.Removingthesystemfan 96
- Replacingthethermalsensor 97
- ReplacingtheWiFiunits 99
- RemovingtheWiFiadaptercard 100
- RemovingtheWiFicardmodule 101
- InstallingtheWiFiunits 102
- .ReplacingFRUs97 103
- InstallingtherearWiFiantenna 105
- RemovingtherearWiFiantenna 105
- InstallingthefrontWiFiantenna 106
- Chapter8.ReplacingFRUs101 107
- Completingthepartsreplacement 108
- Chapter8.ReplacingFRUs103 109
- ©CopyrightLenovo2013 111
- Powermanagement 114
- AutomaticPower-onfeatures 114
- AppendixA.Notices 115
- Televisionoutputnotice 116
- EuropeanconformanceCEmark 116
- Trademarks 116
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