NEC PA521U - ❷ Cleaning the Lens; ❸ Cleaning the Cabinet

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7. Maintenance
❷ Cleaning the Lens
• Turnofftheprojectorbeforecleaning.
• Theprojectorhasaplasticlens.Useacommerciallyavailableplasticlenscleaner.
• Donotscratchormarthelenssurfaceasaplasticlensiseasilyscratched.
• Neverusealcoholorglasslenscleanerasdoingsowillcausedamagetotheplasticlenssurface.
WARNING
• Pleasedonotuseaspraycontainingammablegastoremovedustattachedtothelens,etc.Doingsomay
resultinres.
❸ Cleaning the Cabinet
Turnofftheprojector,andunplugtheprojectorbeforecleaning.
• Useadrysoftclothtowipedustoffthecabinet.
 Ifheavilysoiled,useamilddetergent.
• Neverusestrongdetergentsorsolventssuchasalcoholorthinner.
• Whencleaningtheventilationslitsorthespeakerusingavacuumcleaner,donotforcethebrushofthevacuum
cleanerintotheslitsofthecabinet.
Vacuumthedustofftheventilationslits.
• Cloggedventilationslitsmaycauseariseintheinternaltemperatureoftheprojector,resultinginmalfunction.
• Donotscratchorhitthecabinetwithyourngersoranyhardobjects
• Contactyourdealerforcleaningtheinsideoftheprojector.
NOTE:Donotapplyvolatileagentsuchasinsecticideonthecabinet,thelens,orthescreen.Donotleavearubberorvinylproduct
inprolongedcontactwithit.Otherwisethesurfacenishwillbedeterioratedorthecoatingmaybestrippedoff.