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Safetyinspectionguide
Theintentofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditionsonthese
products.Eachmachine,asitwasdesignedandbuilt,hadrequiredsafetyitemsinstalledtoprotectusers
andservicepersonnelfrominjury.Thisguideaddressesonlythoseitems.However,goodjudgmentshould
beusedtoidentifypotentialsafetyhazardsduetoattachmentoffeaturesoroptionsnotcoveredbythis
inspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutrstcorrectingtheproblem.
Considertheseconditionsandthesafetyhazardstheypresent:
•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock).
•Explosivehazards,suchasadamagedCRTfaceorbulgingcapacitor
•Mechanicalhazards,suchaslooseormissinghardware
Theguideconsistsofaseriesofstepspresentedinachecklist.Beginthecheckswiththepoweroff,and
thepowercorddisconnected.
Checklist:
1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2.Power-offthecomputer.Disconnectthepowercord.
3.Checkthepowercordfor:
a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wiregroundcontinuity
for0.1ohmorlessbetweentheexternalgroundpinandframeground.
b.Thepowercordshouldbetheappropriatetypeasspeciedinthepartslistings.
c.Insulationmustnotbefrayedorworn.
4.Removethecover.
5.Checkforanyobviousalterations.Usegoodjudgmentastothesafetyofanyalterations.
6.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetallings,contamination,wateror
otherliquids,orsignsofreorsmokedamage.
7.Checkforworn,frayed,orpinchedcables.
8.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingelectrostaticdischarge-sensitivedevices
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
Notes:
1.Useproduct-specicESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertied(ISO9000)asfullyeffective.
WhenhandlingESD-sensitiveparts:
•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
•Avoidcontactwithotherpeople.
Chapter2.Safetyinformation5
- HardwareMaintenanceManual 1
- Lenovo3000JSeries 1
- Contents 5
- Chapter10.FRUlists........119 6
- Chapter11.AdditionalService 6
- Information.............185 6
- AppendixA.Notices........189 6
- Index.................191 6
- Chapter1.Aboutthismanual 7
- Chapter2.Safetyinformation 9
- Safetyinspectionguide 11
- Groundingrequirements 12
- Chapter2.Safetyinformation7 13
- .Safetyinformation9 15
- Chapter2.Safetyinformation11 17
- .Safetyinformation13 19
- .Safetyinformation15 21
- Chapter2.Safetyinformation17 23
- Chapter2.Safetyinformation19 25
- .Safetyinformation21 27
- Chapter2.Safetyinformation23 29
- .Safetyinformation25 31
- Chapter2.Safetyinformation27 33
- Chapter3.Generalinformation 35
- .Generalinformation31 37
- Chapter4.GeneralCheckout 39
- Chapter5.Diagnostics 41
- Creatingdiagnosticdiskettes 42
- PC-DoctorforWindowsPE 43
- Runningtests 43
- Testresults 44
- Fixeddiskadvancedtest(FDAT) 44
- Chapter5.Diagnostics39 45
- QuickandFullerase-harddrive 46
- Viewingthetestlog 46
- Chapter6.UsingtheSetupUtility 47
- Selectingastartupdevice 48
- Chapter7.Symptom-to-FRUIndex 51
- Diagnosticerrorcodes 52
- .Symptom-to-FRUIndex47 53
- .Symptom-to-FRUIndex49 55
- .Symptom-to-FRUIndex51 57
- .Symptom-to-FRUIndex53 59
- .Symptom-to-FRUIndex55 61
- .Symptom-to-FRUIndex57 63
- .Symptom-to-FRUIndex59 65
- .Symptom-to-FRUIndex61 67
- Beepsymptoms 69
- POSTerrorcodes 70
- Miscellaneouserrormessages 71
- Undeterminedproblems 73
- 7394,and7395) 75
- Removingthecovers 76
- MachineTypes7387,7388,and7389 78
- MachineTypes7393,7394,and7395 79
- 6.Liftthesmallhandle1 92
- 7397,and7398) 99
- Removingthecover 100
- Locations 100
- MachineTypes7390,7391,and7392 102
- MachineTypes7396,7397,and7398 103
- Replacingamemorymodule 104
- ReplacingaPCIadapter 105
- ReplacingtheCMOSbattery 106
- Replacingthepowersupply 107
- 3andopentheretainer1 109
- 2straightupandoutofthesocket 109
- 2thatprotectsthegold 116
- Replacingtheharddiskdrive 120
- Replacinganopticaldrive 121
- Replacingthediskettedrive 122
- Replacingthefrontpanelcard 123
- CompletingtheFRUreplacement 123
- Chapter10.FRUlists 125
- .FRUlists121 127
- .FRUlists123 129
- .FRUlists125 131
- MachineType7388 133
- .FRUlists129 135
- .FRUlists131 137
- MachineType7389 138
- .FRUlists133 139
- .FRUlists135 141
- MachineType7390 142
- .FRUlists137 143
- .FRUlists139 145
- MachineType7392 146
- .FRUlists141 147
- .FRUlists143 149
- MachineType7393 150
- .FRUlists145 151
- .FRUlists147 153
- .FRUlists149 155
- .FRUlists151 157
- MachineType7394 159
- .FRUlists155 161
- MachineType7395 163
- .FRUlists159 165
- .FRUlists161 167
- .FRUlists163 169
- .FRUlists165 171
- .FRUlists167 173
- MachineType7396 174
- .FRUlists169 175
- .FRUlists171 177
- .FRUlists173 179
- .FRUlists175 181
- MachineType7397 182
- .FRUlists177 183
- .FRUlists179 185
- MachineType7398 187
- .FRUlists183 189
- ©CopyrightLenovo2006,2010 191
- Powermanagement 192
- AutomaticPower-Onfeatures 192
- Recoveringsoftware 193
- AppendixA.Notices 195
- Televisionoutputnotice 196
- Trademarks 196
- *41X8137* 200
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