Lenovo A540 All In One User Manual Page 44

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Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)
cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.
Step4.Removethebasecover.Referto“Removingthebasecover”.
Step5.Removethehingefromthechassis.Referto“Removingthehingefromthechassis”.
Step6.Removetherearcover.Referto“Removingtherearcover”.
Step7.Removethe4screwsthatsecurethepowerswitchboardtotherearcoverandthenrelease
thepowerswitchboardfromthelockingpin.
Step8.Disconnectthepowercablefromthepowerswitchboard.
Step9.Toinstallthepowerswitchboard:
a.Connectthepowercabletothenewconverterboard.
b.Lineuptheholeonthenewpowerswitchboardwiththemountingholeontherearcoverand
secureitwiththescrew.
Step10.ReattachtherearcovertotheLEDpanel.
Step11.Reattachthehingetothechassis,andreconnectthetouchandLEDpanelcablestothe
motherboard.
Step12.Reattachthebasecoverandsecureitwiththescrews.
ReplacingtheNFCmodule
Attention:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
ToreplacetheBluetoothmodule:
38LenovoA540/A740HardwareMaintenanceManual
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