Epson Projector PowerLite 740HD User Manual
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You canalso reset theprojectors lampusage timertozero when youreplace thelamp using theReset Lamp Hours option. You cannot resetthefollowing settingsusingtheReset Alloption: • Input Signal • Users Logo • Language • Network menuitems • Lamp Hours • Password Parent topic:Adjusting theMenu Settings 141
Maintaining andTransporting theProjector Follow theinstructions inthese sections tomaintain yourprojector andtransport itfrom place toplace. Projector Maintenance Transporting theProjector Projector Maintenance Your projector needslittlemaintenance tokeep working atits best. You may need toclean thelens periodically, andclean theairfilter andairvents toprevent theprojector from overheating duetoblocked ventilation. The only parts youshould replace arethelamp, airfilter, andremote controlbatteries. Ifany other part needs replacing, contactEpsonoran authorized Epsonservicer. Warning: Beforecleaning anypart ofthe projector, turnitoff and unplug thepower cord.Never open any cover onthe projector, exceptasspecifically explainedinthis manual. Dangerous electricalvoltages in the projector caninjure youseverely. Warning: Donot trytoservice thisproduct yourself, exceptasspecifically explainedinthis manual. Refer allother servicing toqualified servicers. Cleaning theLens Cleaning theProjector Case Air Filter andVent Maintenance Projector LampMaintenance Replacing theRemote ControlBatteries Parent topic:Maintaining andTransporting theProjector Related references Optional Equipment andReplacement Parts Where toGet Help Cleaning theLens Clean theprojectors lensperiodically, orwhenever younotice dustorsmudges onthe surface. • To remove dustorsmudges, gentlywipethelens withlens-cleaning paper. 142
• To remove stubborn smudges, moistenasoft, lint-free clothwithlens cleaner andgently wipethe lens. Donot spray anyliquid directly onthe lens. Warning: Donot use alens cleaner thatcontains flammable gas.Thehigh heat generated bythe projector lampmaycause afire. Caution: Donot use glass cleaner orany harsh materials toclean thelens anddonot subject thelens to any impacts; youmay damage it.Do not use canned air,orthe gases mayleave aresidue. Avoid touching thelens withyour bare hands toprevent fingerprints onordamage tothe lens surface. Parent topic:Projector Maintenance Cleaning theProjector Case Before cleaning theprojector case,turnoffthe projector andunplug thepower cord. • To remove dustordirt, useasoft, dry,lint-free cloth. • To remove stubborn dirt,useasoft cloth moistened withwater andmild soap. Donot spray liquid directly onthe projector. Caution: Donot use wax, alcohol, benzine, paintthinner, orother chemicals toclean theprojector case. These candamage thecase. Donot use canned air,orthe gases mayleave aresidue. Parent topic:Projector Maintenance Air Filter andVent Maintenance Regular filtermaintenance isimportant tomaintaining yourprojector. YourEpson projector isdesigned with aneasily accessible, user-replaceable filtertoprotect yourprojector andmake regular maintenance simple. Filtermaintenance intervalswilldepend onthe environment. If regular maintenance isnot performed, yourEpson projector willnotify youwhen thetemperature inside theprojector hasreached ahigh level. Donot wait until thiswarning appears tomaintain your projector filterasprolonged exposuretohigh temperatures mayreduce thelifeofyour projector orlamp. Damage duetothe failure toproperly maintain theprojector orits filter may notbecovered bythe projector orlamp Limited Warranties. Cleaning theAirFilter andVents Replacing theAirFilter Parent topic:Projector Maintenance 143
Related references Projector LightStatus Cleaning theAirFilter andVents Clean theprojectors airfilter orvents ifthey getdusty, orifyou seeamessage tellingyoutoclean them. 1. Turn offthe projector andunplug thepower cord. 2. Gently remove thedust using asmall vacuum designed forcomputers oravery softbrush (suchas a paintbrush). Note: Youcanremove theairfilter soyou canclean bothsides ofit.Do not rinse theairfilter in water, oruse anydetergent orsolvent toclean it. Caution: Donot use canned air.The gases mayleave aflammable residueorpush dustanddebris into theprojectors opticsorother sensitive areas. 3. Ifdust isdifficult toremove orthe airfilter isdamaged, replacetheairfilter. Parent topic:AirFilter andVent Maintenance Related tasks Replacing theAirFilter Replacing theAirFilter You need toreplace theairfilter inthe following situations: • After cleaning theairfilter, youseeamessage tellingyoutoclean orreplace it • The airfilter istorn ordamaged 144
You canreplace theairfilter while theprojector ismounted tothe ceiling orplaced onatable. 1. Turn offthe projector andunplug thepower cord. 2. Carefully opentheairfilter cover. 145
3. Pull theairfilter outofthe projector. Note: Airfilters contain ABSresin andpolyurethane foam.Dispose ofused airfilters according to local regulations. 4. Place thenew airfilter inthe projector asshown andpush gently untilitclicks intoplace. 146
5. Close theairfilter cover. Parent topic:AirFilter andVent Maintenance Related references Optional Equipment andReplacement Parts Projector LampMaintenance The projector keepstrackofthe number ofhours thelamp isused anddisplays thisinformation inthe projectors menusystem. Replace thelamp assoon aspossible whenthefollowing occurs: • The projected imagegetsdarker orstarts todeteriorate • Amessage appearswhenyouturn onthe projector tellingyoutoreplace thelamp • The projectors lamplightisflashing orangeanditspower lightisflashing blue Replacing theLamp Resetting theLamp Timer Parent topic:Projector Maintenance Related references Optional Equipment andReplacement Parts Projector Information Display-Info Menu Projector LampSpecifications Projector LightStatus Replacing theLamp Before youreplace thelamp, letthe projector cooldown foratleast onehour sothe lamp willnot behot. Warning: Letthelamp fullycool before replacing itto avoid injury. You canreplace thelamp while theprojector ismounted tothe ceiling, ifnecessary. 1. Turn offthe projector andunplug thepower cord. 2. Allow theprojector lamptocool down foratleast onehour. 147
3. Use thescrewdriver includedwiththereplacement lamptoloosen thescrew securing thelamp cover. Warning: Ifthe lamp isbroken, glassfragments maybeloose inside thelamp chamber. Becareful removing anybroken glasstoavoid injury. Ifthe projector isinstalled onthe ceiling, standtothe side of the lamp cover andnotunderneath it;pieces ofglass could fallinto your eyes ormouth whenyou open thelamp cover. 4. Slide thelamp cover outand liftitoff. 148
5. Loosen thescrews securing thelamp tothe projector. Thescrews donot come allthe way out. 6. Grasp theraised section ofthe lamp andgently pullthelamp outofthe projector. Note: Thelamp(s) inthis product containmercury. Pleaseconsult yourstate andlocal regulations regardingdisposalorrecycling. Donot putinthe trash. 149
7. Gently insertthenew lamp intotheprojector. Ifitdoes notfiteasily, makesureitis facing theright way. Caution: Donot touch anyglass onthe lamp assembly toavoid premature lampfailure. 8. Push inthe lamp firmly andtighten thescrews tosecure it. 150