Lenovo A1000L Tablet User Manual download pdf (Page 21)

Important service information

Usethefollowingstrategytopreventunnecessaryexpenseforreplacingand

servicingFRUs:

• IfyouareinstructedtoreplaceanFRU,butthereplacementdoesnotsolve

theproblem,reinstalltheoriginalFRUbeforeyoucontinue.

• Somecomputershavebothaprocessorboardandasystemboard.Ifyouare

instructed

toreplaceeitherofthem,andreplacingoneofthemdoesnotsolve

theproblem,reinstallthatboard,andthenreplacetheotherone.

• IfanadapteroradeviceconsistsofmorethanoneFRU,anyoftheFRUsmay

bethecauseoftheerror.Beforereplacingtheadapterordevice,removethe

FRUsonebyonetoseeifthesymptomschange.ReplaceonlytheFRUthat

changedthesymptoms.

Attention:Thesetupconfigurationonthecomputeryouareservicingmayhave

beencustomized.RunningAutomaticConfigurationmayalterthesettings.Note

thecurrentconfigurationsettings(usingtheViewConfigurationoption);then,

whenservicehasbeencompleted,verifythatthosesettingsremainineffect.

Important notice for replacing a system board

Somecomponentsmountedonasystemboardareverysensitive.Improper

handlingcancausedamagetothosecomponents,andmaycauseasystem

malfunction.

Attention:Whenhandlingasystemboard:

• Donotdropthesystemboardorapplyanyexcessiveforcetoit.

• Avoidroughhandlingofanykind.

• Avoidbendingthesystemboardandhardpushingtopreventcrackingat

eachBGA(BallGridArray)chipset.

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Lenovo A1000L Tablet User Manual Page 21