Lenovo A720 User Manual download pdf (Page 49)

Step18.Useaatheadscrewdriverasalevertopriseoutthebatteryasshown.

Step19.Toinstallthenewmotherboard:

a.Insertthebattery(CR2032)intothesocketwiththesidelabeled“+”facingup,andpress

thebatteryintoplace.

b.InsertthenotchedendoftheTV-Tunercardintothecardportonthenewmotherboardand

secureitwiththe2screws.

c.Connecttheantennacable(s)totheTV-Tunercard.

d.Lineupthenewmotherboardwiththechassisandslideitintoposition.Aligntheholeson

thenewmotherboardwiththemountingholesonthechassisandsecureittothechassis

withthescrews.

e.Attachtheopticaldriveejectboard,solidstatedisk,opticaldrive,CPU,heat-sink,systemfan,

memorymodule,harddiskdrivetothenewmotherboard.

f.Connectallthecablestothenewmotherboard.

Step20.Reattachthebasecoverandsecureitwiththescrews.

Replacingthespeakersystem

Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.

Toreplacethespeakersystem:

Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating

system,andturnoffthecomputerandallattacheddevices.

Step2.Unplugallpowercordsfromelectricaloutlets.

Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)

cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”

and“Rearview”forhelpwithlocatingthevariousconnectors.

Step4.Removethebasecover.Referto“Removingthebasecover” .

Step5.Removetheharddiskdrive.Referto“Replacingtheharddiskdrive” .

Step6.Removetheheat-sink.Referto“Replacingtheheat-sink” .

Step7.Removetheopticaldrive.Referto“Replacingtheopticaldrive”.

Step8.Removethehingefromthechassis.Referto“Removingthehingefromthechassis” .

Step9.Disconnectthespeakercablefromtheconnectorsonthemotherboard.

Chapter8.Replacinghardware43

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Lenovo A720 User Manual Page 49