Manual Nec NP43 (page 93 of 107) (English)

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8. Appendix

Common Problems & Solutions (→“Power/Status/LampIndicator”onpage83.)

Problem Check These Items

Does not turn on

• Checkthatthepowercableispluggedinandthatthepowerbuttonontheprojectorcabinetortheremotecontrolis

on� (→ page 15, 16)

• Ensurethatthelampcoverisinstalledcorrectly.(→ page 81)

• Ensurethatthetwoscrewsonthelamphousingarecompletelytightened.(→ page 81)

• Ensurethatthecoolingpumpisinstalledcorrectly.(→ page 82)

• Checktoseeiftheprojectorhasoverheated.Ifthereisinsufcientventilationaroundtheprojectororiftheroom

where you are presenting is particularly warm, move the projector to a cooler location�

• Checktoseeifyoucontinuetousetheprojectorforanother100hoursafterthelamphasreachedtheendofitslife.

If so, replace the lamp�

 Afterreplacingthelamp,resetthelamphoursused.(→ page 77)

• Thelampmayfailtolight.Waitafullminuteandthenturnonthepoweragain.

• Set[FANMODE]to[HIGHALTITUDE]whenusingtheprojectorataltitudesapproximately5000feet/1500meters

orhigher.Usingtheprojectorataltitudesapproximately5000feet/1500metersorhigherwithoutsettingto[HIGH

ALTITUDE]cancausetheprojectortooverheatandtheprojectorcouldshutdown.Ifthishappens,waitacouple

minutes and turn on the projector� (→ page 71)

 Alsowhenthelampisturnedoff,theprojectorinternaltemperatureishot.Ifthepoweristurnedonbeforethepro-

jector has cooled down, the fan will run a short time before the lamp will turn on�

Will turn off • Ensurethatthe[OFFTIMER]or[AUTOPOWEROFF]isoff.(→ page 72, 73)

• Checkiftheprojectorhasstayedwithitslenscoverclosedformorethan2hours.(→ page 5)

No picture

• Usetheappropriatesourcebuttonontheremotecontroltoselectyoursource.(→ page 18) If there is still no pic-

ture, press the button again�

• Ensureyourcablesareconnectedproperly.

• Usemenustoadjustthecontrastandbrightness.(→ page 59)

• Checktoseeiftheimageismuted.(→ page 30)

• Ensurethatthelenscoverisopen.(→ page 5)

• Resetthesettingsoradjustmentstofactorypresetlevelsusingthe[RESET]intheMenu.(→ page 77)

• EnteryourregisteredkeywordiftheSECURITYfunctionisenabled.(→ page 33)

• BesuretoconnecttheprojectorandnotebookPCwhiletheprojectorisinstandbymodeandbeforeturningonthe

powertothenotebookPC.

 InmostcasestheoutputsignalfromthenotebookPCisnotturnedonunlessconnectedtotheprojectorbeforebe-

ing powered up�

* Ifthescreengoesblankwhileusingyourremotecontrol,itmaybetheresultofthecomputer’sscreen-saveror

power management software�

• Seealsothenextpage.

Picture suddenly be-

comesdark

• Whenoneofthefollowinghappens,the[ECOMODE]automaticallychangesfrom[OFF]to[ON].

* Whentherearenosignals(blueorblackscreen)→Toreturntothe[OFF]mode,selectanotheravailablesource.

* Whentheroomwhereyou’representingisparticularlywarm→ Move the projector to a cooler location�

Imageisn’tsquaretothe

screen

• Repositiontheprojectortoimproveitsangletothescreen.(→ page 20, 21)

• UsetheKEYSTONEcorrectionfunctiontocorrectthetrapezoiddistortion.(→ page 25)

Picture is blurred

• Makesurethatfocusisappropriate.

• Repositiontheprojectortoimproveitsangletothescreen.(→ page 20, 21)

• Ensurethatthedistancebetweentheprojectorandscreeniswithintheadjustmentrangeofthelens.(→ page 10)

• MakesurethatthedistancebetweenthefocussensorandthescreeniswithintheeffectiverangeoftheAUTOFO-

CUS� (→ page 22)

• MakesurethattherequirementsfortheAUTOFOCUSaremet.(→ page 22)

• Condensationmayformonthelensiftheprojectoriscold,broughtintoawarmplaceandisthenturnedon.Should

this happen, let the projector stand until there is no condensation on the lens�

Flicker appears on screen • Set [FAN MODE] to other than [HIGH ALTITUDE] mode when using the projector at altitudes approximately 5000

feet/1500 meters or lower. Using the projector at altitudes less than approximately 5000 feet/1500 meters and setting

to [HIGH ALTITUDE] can cause the lamp to overcool, causing the image to icker. Switch [FAN MODE] to [AUTO].

(

→

page 71)

Image is scrolling verti-

cally, horizontally or both

• Usetheappropriatesourcebuttonontheremotecontroltoselectyoursource.(→ page 18)

• Adjustthecomputerimagemanuallywiththe[HORIZONTAL]and[VERTICAL]in[ADJUST]→[IMAGEOPTIONS]in

the menu� (→ page 61)

Remote control does not

work

• Installnewbatteries.(→ page 8)

• Makesuretherearenoobstaclesbetweenyouandtheprojector.

• Standwithin22feet(7m)oftheprojector.(→ page 8)

Indicatorislitorblinking • SeethePOWER/STATUS/LAMPIndicator.(→ page 83)

CrosscolorinRGBmode • PresstheAUTOADJ.buttonontheremotecontrol(◀ button on the projector cabinet)� (→ page 27)

• Adjustthecomputerimagemanuallywith[CLOCK]and[PHASE]in[ADJUST]→[IMAGEOPTIONS]inthemenu.(→

page 60)

Cannot control the pro-

jector in standby mode

from the PC Control�

• Checkif[STANDBYMODE]isnotsetto[POWER-SAVING].

The projector does not

operate correctly�

• Turnoffthepowerandunplug thepowercable.Waitfor5minutes.Plugthepowercableandturnonthepower

again�

Formoreinformationcontactyourdealer.

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