Bedienungsanleitung Nec NP-M271W (Seite 134 von 146) (Englisch)

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8. Appendix

Common Problems & Solutions

(→“Power/Status/LampIndicator”onpage122.)

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 119)

• 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 117)

• 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/1600meters

or higher� Using the projector at altitudes approximately 5500 feet/1600 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 89)

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 85, 92)

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 78)

• 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 99)

• EnteryourregisteredkeywordiftheSecurityfunctionisenabled.(→ page 29)

• 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 be-

comes dark

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

lower the internal temperature of the projector by selecting [HIGH] for [FAN MODE]� (→ page 89)

Color tone or hue is un-

usual

• Checkifanappropriatecolorisselectedin[WALLCOLOR].Ifso,selectanappropriateoption.(→ page 84)

• Adjust[HUE]in[PICTURE].(→ page 78)

Image isn’t square to the

screen

• Repositiontheprojectortoimproveitsangletothescreen.(→ page 18)

• UsetheKeystonecorrectionfunctiontocorrectthetrapezoiddistortion.(→ page 21)

Picture is blurred

• Adjustthefocus.(→ page 20)

• Repositiontheprojectortoimproveitsangletothescreen.(→ page 18)

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

(→ page 102)

• 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�

Fl i cke r ap p ea r s on

screen

•

Set [FAN MODE] to other than [HIGH ALTITUDE] mode when using the projector at altitudes approximately 5500 feet/1600

meters or lower� Using the projector at altitudes less than approximately 5500 feet/1600 meters and setting to [HIGH ALTI-

TUDE] can cause the lamp to overcool, causing the image to ﬂicker� Switch [FAN MODE] to [AUTO]� (→ page 89)

Image is scrolling ver-

tically, 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 129)

• AdjustthecomputerimagemanuallywiththeHorizontal/Verticalinthe[IMAGEOPTIONS].(→ page 80)

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 blink-

ing

• SeethePOWER/STATUS/LAMPIndicator.(→ page 122)

Cross color in RGB

mode

• PresstheAUTOADJ.buttonontheprojectorcabinetortheremotecontrol.(→ page 23)

• Adjustthecomputerimagemanuallywith[CLOCK]/[PHASE]in[IMAGEOPTIONS]inthemenu.(→ page 79)

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

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