NEC PH1000U - Replacing the Filters

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7. Maintenance
 Replacing the Filters
Itisrecommendedthattheltersarecleanedafterevery5000hoursofuseandreplacedafterevery10000hoursof
use.Thesehourscanvarydependingonyourusageenvironment.
Therearetwolters,onelocatedatthefrontoftheprojectorandoneontheside.
Optionallters(twolter)areavailable.
Smalloneforthefront
Largeonefortheleftside
NOTE:
• Replacebothlterswiththenewonesatthesametime.
• Beforereplacingthelters,useavacuumcleanertovacuumdustanddirtfromthevents(inlet)oftheprojectoranduseadry
soft cloth to wipe dust off the cabinet.
• Theprojectorcontainshigh-precisionparts.Keepoutdustanddirtduringlterreplacement.
• Donotwashthelterwithwater.Waterwilldamagetheltermembrane.
• Attachthelterinthecorrectorientation.Failuretodosomaycausedustanddirttoenterinsidetheprojector,resultinginprojec-
tor malfunction.
Filter cover
Inlet
(Thelterisinside)
Filter cover
Inlet
(Thelterisinside.)
Replacing the filter on the left side
1. Removetheltercover.
(1)Looseneachofthetwoknobsbyturningthemcounter-
clockwise.
 •Theknobsarenotremovable.
 •If the knob is too tight to turn, use a Phillips screw-
driver.
(2)Removetheltercoverbyslidingittotheleftandpulling
it out.
1
2
Filter cover
Notch
Knob