Lenovo ThinkCentre E73z - USB Problems

Chapter9.ReplacingFRUs
ThischapterprovidesinstructionsaboutremovingorreplacingmajorFRUs.NotallFRUsaredocumented.
Important
BeforeyoureplaceanyFRU,readChapter2“Safetyinformation”onpage3.Theseprecautionsand
guidelineswillhelpyouworksafely.
FRUreplacementsaretobedonebytrainedservicetechniciansonly.
ThischapterprovidesinstructionsaboutremovingorreplacingmajorFRUs.NotallFRUsaredocumented.
Removingandinstallingthecomputerstand
CAUTION:
Turnoffthecomputerandwaitthreetoveminutestoletthecomputercoolbeforeremovingthe
computerstand.
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
2“Safetyinformation”onpage3
.
Thissectionprovidesinstructionsonhowtoremoveandinstallthecomputerstand.
Thecomputermightbeinstalledwithamonitorstandoraframestand.
•Toremoveandinstalltheframestand,see“Removingandreinstallingtheframestand”onpage71
.
•Toremoveandinstallthemonitorstand,see“Removingandinstallingthemonitorstand”onpage73
.
Removingandreinstallingtheframestand
Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe
“Importantsafetyinformation”onpage1
Thissectionprovidesinstructionsonhowtoremoveandreinstalltheframestand.
CAUTION:
Turnoffthecomputerandwaitthreetoveminutestoletthecomputercoolbeforeremovingthe
framestand.
Toremoveandreinstalltheframestand,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.
2.Disconnectallpowercordsfromelectricaloutlets.
3.Disconnectthepowercords,Input/Outputcables,andanyothercablesthatareconnectedtothe
computer.See“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”onpage
65
and“Locatingconnectorsontherearofyourcomputer”onpage66.
4.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
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