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174

7. Maintenance

Thissectiondescribesthesimplemaintenanceproceduresyoushouldfollowtocleanthelters,thelens,thecabinet,

andtoreplacethelampandthelters.

❶ Cleaning the Filters

Theair-lterspongekeepsdustanddirtfromgettinginsidetheprojectorandshouldbefrequentlycleaned.Ifthelter

isdirtyorclogged,yourprojectormayoverheat.

WARNING

• Pleasedonotuseaspraycontainingammablegastoremovedustattachedtothelters,etc.Doingsomay

resultinres.

NOTE:Themessageforltercleaningwillbedisplayedforoneminuteaftertheprojectoristurnedonoroff.Whenthemessageis

displayed,cleanthelters.Thetimetocleantheltersissetto[OFF]attimeofshipment.(→ page 110)

To cancel the message, press any button on the projector cabinet or the remote control.

Thetwo-layerlter on theprojectorimprovescoolingand dust-proof capabilities compared with the conventional

models.

Theoutsides(theintakeventside)oftherstandsecondlayerltersremovedust.

Tocleanthelter,detachthelterunitandtheltercover.

CAUTION

• Beforecleaningthelters,turnofftheprojector,disconnectthepowercordandthenallowthecabinettocool.

Failuretodosocanresultinelectricshockorburninjuries.

1. Press down on the buttons on the left and right and then

pull the ﬁlter cover towards you to open it.

 Thecoverwillopenabout90degreesbeforeitstops.

Filtercover Button

When mounting the projector to a ceiling

 Theltercoverwillopenabout90degreesbeforeitcomestoa

stopatthestopperposition.Removeyourhandsasthestopper

willbedetachedifitisopenedfurther.Theltercoverwillstop

atapositionofabout90degrees.

 However,theltercovermaycloseiftheprojectorvibrates.

NEC PA721X User Manual

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