Samsung SCX-340x Series - Disassembly and Reassembly; Precautions When Replacing Parts; Precautions When Assembling and Disassembling; Preautions When Handling PBA

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3.DisassemblyandReassembly

3.1.Precautionswhenreplacingparts

3.1.1.Precautionswhenassemblinganddisassembling

•UseonlyapprovedSamsungspareparts.Ensurethatpartnumber,productname,anyvoltage,currentortemperature

ratingarecorrect.Failuretodosocouldresultindamagetothemachine,circuitoverload,reorelectricshock.

•Donotmakeanyunauthorizedchangesoradditionstotheprinter,thesecouldcausetheprintertomalfunctionand

createelectricshockorrehazards.

•Takecarewhendismantlingtheunittonotewhereeachscrewgoes.Thereare19differentscrews.Useofthewrong

screwcouldleadtosystemfailure,shortcircuitorelectricshock.

•DonotdisassembletheLSUunit.Onceitisdisassembleddustisadmittedtothemirrorchamberandwillseriously

degradeprintquality.Therearenoserviceablepartsinside.

•Regularlychecktheconditionofthepowercord,plugandsocket.Badcontactscouldleadtooverheatingandrfe.

Damagedcablescouldleadtoelectricshockorunitmalfunction.

3.1.2.PreautionswhenhandlingPBA

StaticelectricitycandamageaPBA,alwaysusedapprovedanti-staticprecautionswhenhandlingorstoringaPBA.

•PrecautionswhenmovingandstoringPBA

1)PleasekeepPBAinaconductivecase,anti-staticbag,orwrappedinaluminumfoil.

2)DonotstoreaPBAwhereitisexposedtodirectsunlight.

•PrecautionswhenreplacingPBA

1)Disconnectpowerconnectorsrst,beforedisconnectingothercables.

2)Donottouchanysolderedconnections,connectorterminalsorotherelectronicpartswhenhandlinginsulatedparts.

•PrecautionswhencheckingPBA

1)BeforetouchingaPBA,pleasetouchothergroundedareasofthechassistodischargeanystaticelectricalcharge

onthebody.

2)TakecarenottotouchthePBAwithyourbarehandsormetalobjectsasyoucouldcreateashortcircuitorgetan

electricshock.TakeextracarewhenhandlingPBAswithmovingpartsttedsuchassensors,motorsorlampsas

theymaygethot.

3)Takecarewhentting,orremoving,screws.Lookoutforhiddenscrews.Alwaysensurethatthecorrectscrewis

usedandalwaysensurethatwhentoothedwashersareremovedtheyarerettedintheiroriginalpositions.

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