Bedienungsanleitung Nec NP-PA500U (Seite 228 von 235) (Englisch)

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9. Appendix

Common Problems & Solutions

(→“Power/Status/LampIndicator”onpage214.)

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 13, 14)

• Ensurethatthelampcoverisinstalledcorrectly.(→ page 161)

• 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 116)

• 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 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],[AUTOPOWEROFF]or[PROGRAMTIMER]isoff.(→ page 101, 111)

No picture

•

Check if the appropriate input is selected� (→ page 16) If there is still no picture, press the SOURCE button

or one of the input buttons again�

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

• Usemenustoadjustthebrightnessandcontrast.(→ page 93)

• Ensurethatthelenscoverisopen.(→ page 14)

• Resetthesettingsoradjustmentstofactorypresetlevelsusingthe[RESET]intheMenu.(→ page 116)

• EnteryourregisteredkeywordiftheSecurityfunctionisenabled.(→ page 37)

• If the HDMI input or the DisplayPort signal cannot be displayed, try the following�

- Reinstall your driver for the graphics card built in your computer, or use the updated driver�

For reinstalling or updating your driver, refer to the user guide accompanied with your computer or graphics

card, or contact the support center for your computer manufacturer�

Install the updated driver or OS on your own responsibility�

We are not liable for any trouble and failure caused by this installation�

• 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page218�

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 internal temperature of the projector by selecting [HIGH] for [FAN MODE]� (→ page 108)

Color tone or hue is

unusual

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

101)

• Adjust[HUE]in[PICTURE].(→ page 93)

Image isn’t square to

the screen

• Repositiontheprojectortoimproveitsangletothescreen.(→ page 17)

• UsetheKeystonecorrectionfunctiontocorrectthetrapezoiddistortion.(→ page 22)

Picture is blurred

• Adjustthefocus.(→ page 19)

• Repositiontheprojectortoimproveitsangletothescreen.(→ page 17)

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

(→ page 201)

• Has the lens been shifted by an amount exceeding the guaranteed range? (→ page 205)

• 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�

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