Lenovo 3980 User Manual Page 75
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- Table of contents
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1.Removeanymediafromthedrives.Then,turnoffallattacheddevicesandthecomputer.
2.Disconnectallpowercordsfromelectricaloutlets.
3.Disconnectthepowercords,Input/Output(I/O)cables,andanyothercablesthatareconnectedtothe
computer.
4.Removeanylockingdevices,suchasacablelockthatsecuresthecomputercover.
5.Pushthecover-releasebuttononthesideofthecomputerandpivotthecomputercoveroutward.
Figure5.Removingthecomputercover
6.Notethelocationsofallpartsandconnectorsonthesystemboard.See“Locatingpartsonthe
systemboard”onpage67.
7.Disconnectallthecablesfromthesystemboardandcompletelyremovethecomputercover.
Removingandreinstallingthefrontbezel
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoremoveandreinstallthefrontbezel.
Toremoveandreinstallthefrontbezel,dothefollowing:
1.Removethecomputercover.See“Removingthecomputercover”onpage68.
2.Removethefrontbezelbyreleasingthetwoplastictabsandpivotingthefrontbezelforwardto
completelyremoveitfromthecomputer.
Chapter8.ReplacingFRUs69
- HardwareMaintenanceManual 1
- Contents 5
- AppendixA.Notices........101 6
- Chapter1.Aboutthismanual 7
- Chapter2.Safetyinformation 9
- Voltage-selectionswitch 11
- Safetyinspectionguide 11
- Groundingrequirements 12
- Chapter2.Safetyinformation7 13
- .Safetyinformation9 15
- 10HardwareMaintenanceManual 16
- Chapter2.Safetyinformation11 17
- .Safetyinformation13 19
- 14HardwareMaintenanceManual 20
- .Safetyinformation15 21
- LenovoWelcome 36
- AccessHelp 36
- Specications 36
- .Generalinformation31 37
- 32HardwareMaintenanceManual 38
- Chapter4.Generalcheckout 39
- Problemdeterminationtips 40
- .Generalcheckout35 41
- 36HardwareMaintenanceManual 42
- Chapter5.Diagnostics 43
- PC-DoctorforRescueandRecovery 44
- PC-DoctorforDOS 44
- Creatingadiagnosticdisc 44
- Runningtests 45
- Viewingthetestlog 46
- Chapter6.UsingtheSetupUtility 47
- SetUserPassword 48
- ChangeSupervisorPassword 48
- Enablingordisablingadevice 48
- Selectingastartupdevice 49
- 44HardwareMaintenanceManual 50
- Chapter7.Symptom-to-FRUindex 51
- 46HardwareMaintenanceManual 52
- .Symptom-to-FRUindex47 53
- 48HardwareMaintenanceManual 54
- .Symptom-to-FRUindex49 55
- 50HardwareMaintenanceManual 56
- .Symptom-to-FRUindex51 57
- 52HardwareMaintenanceManual 58
- .Symptom-to-FRUindex53 59
- 54HardwareMaintenanceManual 60
- .Symptom-to-FRUindex55 61
- 56HardwareMaintenanceManual 62
- .Symptom-to-FRUindex57 63
- 58HardwareMaintenanceManual 64
- .Symptom-to-FRUindex59 65
- 60HardwareMaintenanceManual 66
- Beepsymptoms 67
- POSTerrorcodes 67
- Miscellaneouserrormessages 68
- .Symptom-to-FRUindex63 69
- Undeterminedproblems 70
- Chapter8.ReplacingFRUs 71
- Locatingcomponents 72
- Locatingpartsonthesystemboard 73
- Removingthecomputercover 74
- Attention 75
- Replacingthebattery 78
- Replacingtheharddiskdrive 79
- Chapter8.ReplacingFRUs75 81
- Replacingthesystemfanassembly 83
- 2onthemicroprocessor 86
- Replacingthesystemboard 88
- Replacingtheacpoweradapter 89
- Completingthepartsreplacement 90
- .ReplacingFRUs85 91
- 88HardwareMaintenanceManual 94
- .FRUlists89 95
- MachineType3980 96
- .FRUlists91 97
- 92HardwareMaintenanceManual 98
- MachineType5214 99
- .FRUlists95 101
- MachineType5354 102
- .FRUlists97 103
- 98HardwareMaintenanceManual 104
- ©CopyrightLenovo2009,2010 105
- AppendixA.Notices 107
- Televisionoutputnotice 108
- Trademarks 108
- *71Y6308* 110
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