Lenovo M90 User's Guide download pdf (Page 52)

3.Followtheinstructionsonthescreentoselectthediagnostictestyouwanttorun.

Note:Foradditionalhelp,presstheF1key.

4.Removethediagnosticdiscfromtheopticaldrivewhenyoucompletethediagnosticprocess.

Cleaninganopticalmouse

Thissectionprovidesinstructionsonhowtocleananopticalmouse.

Anopticalmouseusesalight-emittingdiode(LED)andanopticalsensortonavigatethepointer.Ifthe

pointeronthescreendoesnotmovesmoothlywiththeopticalmouse,youmightneedtocleanthemouse.

Tocleananopticalmouse,dothefollowing:

1.Turnoffyourcomputer.

2.Disconnectthemousecablefromthecomputer.

3.Turnthemouseupsidedowntocheckthelens.

a.Ifthereisasmudgeonthelens,gentlycleantheareawithaplaincotton-tippedswab.

b.Ifthereisdebrisinthelens,gentlyblowthedebrisawayfromthearea.

4.Checkthesurfaceonwhichyouareusingthemouse.Ifyouhaveaveryintricatepictureorpattern

beneaththemouse,itmaybedifcultforthedigitalsignalprocessor(DSP)todeterminechangesinthe

mouseposition.

5.Reconnectthemousecabletothecomputer.

6.Turnyourcomputerbackon.

44ThinkCentreUserGuide

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Lenovo M90 User's Guide Page 52