Lenovo 3484JMU User Manual Page 116
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USBproblems
Symptom:TheUSBconnectorscannotbeaccessed.
Actions:
•MakesuretheUSBcableissecurelyconnectedtotheUSBconnectorandtotheUSBdevice.IftheUSB
devicehasitsownpowercord,makesureitisattachedtoaproperlygroundedelectricaloutlet.
•IftheUSBdevicehasitsownOn/Offswitch,makesureitisintheOnposition.
•IftheUSBdevicehasanOnlineswitch,makesureitisintheOnlineposition.
•IftheUSBdeviceisaprinter,makesurepaperisloadedcorrectly.
•MakesureanydevicedriversorothersoftwaresuppliedwiththeUSBdeviceiscorrectlyinstalled.
RefertothedocumentationfortheUSBdevice.
•ResetthedevicebydetachingandreattachingtheUSBconnector.
Iftheseactionsdonotcorrecttheproblem,runthediagnosticprogramstotesttheUSBconnector(see
“Diagnosticprograms”onpage104forinstructions).IftheUSBdevicecamewithitsowndiagnostics,run
thosediagnosticsagainsttheUSBdevice.Ifyouneedtechnicalassistance,seeChapter11“Getting
information,help,andservice”onpage107.
Diagnosticprograms
Diagnosticprogramsareusedtotesthardwarecomponentsofyourcomputer.Diagnosticprogramscan
alsoreportoperating-system-controlledsettingsthatinterferewiththecorrectoperationofyourcomputer.
Youcanusethepreinstalleddiagnosticprogramtodiagnosecomputerproblems,ifyourcomputeris
runningtheWindowsoperatingsystem.
Notes:
1.Dependingonthedatewhenyourcomputerwasmanufactured,yourcomputerispreinstalledwith
eithertheLenovoSolutionCenterprogramortheLenovoThinkVantageToolboxprogramfordiagnostic
purposes.FormoreinformationabouttheLenovoThinkVantageToolboxprogram,see“Lenovo
ThinkVantageToolbox”onpage105
.FormoreinformationabouttheLenovoSolutionCenterprogram,
see“LenovoSolutionCenter”onpage104.
2.YoucanalsodownloadthePC-DoctorforDOSdiagnosticprogramfromhttp://www.lenovo.com/support.
See“PC-DoctorforDOS”onpage105fordetailedinformation.
3.Ifyouareunabletoisolateandrepairtheproblemyourselfafterrunningtheprograms,saveandprint
theloglescreatedbytheprograms.YouwillneedthelogleswhenyouspeaktoaLenovotechnical
supportrepresentative.
LenovoSolutionCenter
TheLenovoSolutionCenterprogramenablesyoutotroubleshootandresolvecomputerproblems.It
combinesdiagnostictests,systeminformationcollection,securitystatus,andsupportinformation,along
withhintsandtipsformaximumsystemperformance.
Notes:
•TheLenovoSolutionCenterprogramcanbedownloadedfromhttp://www.lenovo.com/diags.
•IfyouareusingotherWindowsoperatingsystemratherthanWindows7andWindows8,goto
http://www.lenovo.com/diagsforthelatestinformationondiagnosticsforyourcomputer.
ToruntheLenovoSolutionCenterprogram,see“Lenovoprograms”onpage5
.
104ThinkCentreUserGuide
- ThinkCentre 1
- UserGuide 1
- ThirdEdition(September2012) 2
- Contents 3
- Importantsafetyinformation 7
- Powercordsandpoweradapters 8
- Plugsandoutlets 9
- Externaldevices 9
- Heatandproductventilation 9
- Operatingenvironment 10
- Modemsafetyinformation 10
- Lasercompliancestatement 11
- Powersupplystatement 11
- Cleaningandmaintenance 11
- Chapter1.Productoverview 13
- Chapter1.Productoverview3 15
- Specications 17
- Lenovoprograms 17
- Chapter1.Productoverview7 19
- Locations 21
- 10ThinkCentreUserGuide 22
- .Productoverview11 23
- Locatingcomponents 24
- Locatingpartsonthesystemboard 25
- Locatinginternaldrives 26
- Machinetypeandmodellabel 27
- 16ThinkCentreUserGuide 28
- Chapter2.Usingyourcomputer 29
- Usingthekeyboard 30
- UsingWindowsshortcutkeys 30
- Usingangerprintreader 30
- Usingthewheelmouse 31
- Adjustingaudio 31
- Aboutyourcomputeraudio 31
- UsingCDsandDVDs 32
- PlayingaCDorDVD 33
- RecordingaCDorDVD 33
- 22ThinkCentreUserGuide 34
- Chapter3.Youandyourcomputer 35
- Glareandlighting 36
- Aircirculation 36
- Registeringyourcomputer 37
- Voltage-selectionswitch 37
- Replacementpowercords 38
- Chapter4.Security 39
- Lockingthecomputercover 40
- Usingpasswords 41
- BIOSpasswords 41
- Windowspasswords 42
- Conguringthengerprintreader 42
- Usingandunderstandingrewalls 42
- Protectingdataagainstviruses 42
- .Security31 43
- 32ThinkCentreUserGuide 44
- Installingexternaloptions 45
- Installingorreplacinghardware 45
- Removingthecomputercover 46
- Attention: 47
- InstallingorreplacingaPCIcard 48
- Figure13.RemovingaPCIcard 50
- Figure14.InstallingaPCIcard 51
- Replacingthebattery 53
- Replacingtheopticaldrive 56
- Replacingthemicroprocessor 62
- 2onthemicroprocessor 64
- ReplacingtheWiFiunits 66
- RemovingtheWiFicardmodule 67
- InstallingtheWiFiunits 68
- InstallingtherearWiFiantenna 71
- RemovingtherearWiFiantenna 71
- InstallingthefrontWiFiantenna 72
- Replacingthekeyboardormouse 74
- Completingthepartsreplacement 75
- Obtainingdevicedrivers 76
- Chapter6.Recoveryinformation 77
- Creatingrecoverymedia 78
- Usingrecoverymedia 78
- Performingabackupoperation 78
- Performingarecoveryoperation 79
- Creatingandusingarescuemedium 80
- Reinstallingsoftwareprograms 82
- Reinstallingdevicedrivers 82
- Solvingrecoveryproblems 82
- 72ThinkCentreUserGuide 84
- Viewingandchangingsettings 85
- Passwordconsiderations 86
- Power-OnPassword 86
- AdministratorPassword 86
- HardDiskPassword 86
- Enablingordisablingadevice 87
- Selectingastartupdevice 88
- EnablingErPcompliancemode 88
- ExitingtheSetupUtilityprogram 89
- 78ThinkCentreUserGuide 90
- Usingsystemprograms 91
- Chapter9.Preventingproblems 93
- UsingSystemUpdate 94
- Cleaningyourcomputer 95
- Goodmaintenancepractices 96
- Movingyourcomputer 96
- Chapter9.Preventingproblems85 97
- 86ThinkCentreUserGuide 98
- Basictroubleshooting 99
- Troubleshootingprocedure 100
- Troubleshooting 100
- Audioproblems 101
- CDproblems 102
- DVDproblems 103
- DVDmoviewillnotplay 104
- Playbackisverysloworchoppy 104
- Intermittentproblems 105
- ThinkCentreUserGuide 106
- Monitorproblems 107
- Theimageappearstobeickering 108
- Theimageisdiscolored 108
- Networkingproblems 109
- AwirelessLANproblem 110
- Optionproblems 111
- Performanceandlockupproblems 112
- Insufcientmemory 113
- Printerproblems 114
- Serialportproblems 114
- Softwareproblems 115
- USBproblems 116
- Diagnosticprograms 116
- LenovoSolutionCenter 116
- LenovoThinkVantageToolbox 117
- PC-DoctorforDOS 117
- 106ThinkCentreUserGuide 118
- ©CopyrightLenovo2012 119
- LenovoSupportWebsite 120
- Helpandservice 120
- Callingforservice 120
- Usingotherservices 121
- Purchasingadditionalservices 121
- 110ThinkCentreUserGuide 122
- AppendixA.Notices 123
- Trademarks 124
- Exportclassicationnotice 125
- Televisionoutputnotice 125
- Electronicemissionsnotices 125
- 116ThinkCentreUserGuide 128
- ImportantWEEEinformation 129
- Recyclinginformation 129
- RecyclinginformationforBrazil 130
- 120ThinkCentreUserGuide 132
- ChinaRoHS 133
- TurkishRoHS 133
- UkraineRoHS 133
- IndiaRoHS 134
- 124ThinkCentreUserGuide 136
- 126ThinkCentreUserGuide 138
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