Bedienungsanleitung Nec P451X (Seite 219 von 231) (Englisch)

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9. Appendix

Common Problems & Solutions

(→“Power/Status/LampIndicator”onpage206.)

Problem CheckTheseItems

Does not turn on or

shut down

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

is on� (→ pages 14, 15)

• Ensurethatthelampcoverisinstalledcorrectly.(→ page 162)

• 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 160)

• 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5500feet/1700meters

or higher� Using the projector at altitudes approximately 5500 feet/1700 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 108)

If you turn on the projector immediately after the lamp is turned off, the fans run without displaying an image for

some time and then the projector will display the image� Wait for a moment�

Will turn off • Ensurethatthe[OFFTIMER]or[AUTOPOWEROFF]isoff.(→ page 103, 111)

No picture

• UsetheCOMPUTER1,theCOMPUTER2,theVIDEOortheS-VIDEObuttonontheremotecontroltoselectyour

source (Computer, Video or S-Video)� (→ page 17) If there is still no picture, press the button again�

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

• Usemenustoadjustthebrightnessandcontrast.(→ page 95)

• 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 117)

• 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

being 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

becomes dark

• CheckiftheprojectorisintheForcedECOmodebecauseoftoohighambienttemperature.Ifthisisthecase,

lower the room temperature by turning down your air conditioner�

Color tone or hue is

unusual

• Checkifanappropriatecolorisselectedin[WALLCOLOR].Ifso,selectanappropriateoption.(→ page 102)

• Adjust[HUE]in[PICTURE].(→ page 95)

Image isn’t square to

the screen

• Repositiontheprojectortoimproveitsangletothescreen.(→ page 19)

• UsetheKeystonecorrectionfunctiontocorrectthetrapezoiddistortion.(→ page 24)

Picture is blurred

• Adjustthefocus.(→ page 21)

• Repositiontheprojectortoimproveitsangletothescreen.(→ page 19)

• Ensure that the distance between the projector and screen is within the adjustment range of the lens.

(→ page 143)

• 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5500

feet/1700 meters or lower� Using the projector at altitudes less than approximately 5500 feet/1700 meters and

setting to [HIGH ALTITUDE] can cause the lamp to overcool, causing the image to ﬂicker� Switch [FAN MODE] to

[AUTO]� (→ page 108)

Image is scrolling

vertically, horizontally

or both

• Checkthecomputer’sresolutionandfrequency.Makesurethattheresolutionyouaretryingtodisplayissupported

by the projector� (→ page 214)

• AdjustthecomputerimagemanuallywiththeHorizontal/Verticalinthe[IMAGEOPTIONS].(→ page 97)

Remote control does

not work

• Installnewbatteries.(→ page 9)

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

• Standwithin22feet(7m)oftheprojector.(→ page 9)

Indicator is lit or blinking

• SeethePOWER/STATUS/LAMPIndicator.(→ page 206)

Cross color in RGB

mode

• PresstheAUTOADJ.buttonontheprojectorcabinetortheremotecontrol.(→ page 26)

• Adjustthecomputerimagemanuallywith[CLOCK]/[PHASE]in[IMAGEOPTIONS]inthemenu.(→ page 96)

Formoreinformationcontactyourdealer.

Nec P451X Seite 219

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