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Why does an nec projector image dims after 15 seconds?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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dhiman
  • 115 Answers

SOURCE: NEC vt460 Projector have a ghost problem on the screen

Hello

Pls Service the LCD Panels of the Projector, Also check the Fly-Eye lens, just next to Lamp unit. This will solve your problem. if it's not then the only solution is Replacement of LCD Panels, But Must check or replace the external RGB Cable first befor doing all this exercise.

Posted on Feb 07, 2008

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SOURCE: Projection is so dim

Hi,

Click HERE for the user manual.
I hope this helps.

Goodluck,
Please don't forghet to rate the solution

Posted on Mar 22, 2008

Marrie
  • 563 Answers

SOURCE: nec vt 675 projector

Hi there

Simply go into the menu and flip it back in the subfolder that will either read Mirror or Horisontal / Vertical Positioning

Posted on Apr 10, 2008

  • 1 Answer

SOURCE: Projection is so dim

Try turning up the brightness?

Posted on Apr 30, 2008

  • 14 Answers

SOURCE: proector image is dim

I have changed the bulb on my LG projector recently. I found the rotating colour wheel to be full of dust. Upon opening the cavity where the light is redirected and reflected onto the imager, I saw all mirrors also had a layer of dust. I don't think it was so dirty that it affected the brightness of the image, but I cleaned it anyway using an earbud. I cleaned both sides of the color wheel as well. You need to be careful in working with the optics of the projector!

Posted on Sep 14, 2008

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1 Answer

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probably needs filters cleaning or a new lamp replacement.

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I have three NEC LT 245 projetors, one of them is dim compared to the others even though all setting are the same. How can I correct this?


check the lamp of the projector. around the filament of the lamp, you might notice dark corrosion building around it. this what normally cause dim image.

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I work for a school district and one of our projectors is projecting a dim image. We have replaced with a brand new bulb and still have the same problem, however after changing the lamp there were pink...


You will possibly find that there is dust on the LCD units plus it sound as if the filters may have been blocked for a while, causing damage to the blus LCD unit giving a dull picture effect.
This is not repairable unless a new optical block is fitted.

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projectors really don't like hot and humid. they love cool and dry. if the colorwheel is failing, the lamp wouldn't come on. humidity+dust+intense lamp heat=coated components. such as the colorwheel glass, which is clear and coloered. fried dust will cause dimness. you'd have to send it in to nec.

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1 Answer

New lamp but image is dim


This usually means that there is some contamination in the light path. Since many of the mirrors and lenses must be carefully aligned, it is not recommended to have the homeowner dis-assemble +/or clean these. This unit should be sent in for serive, requesting a complete clean and alighment. The unit will be cleaned, any filters changed and the convergence checked.

Dan

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A trapezoid can be corrected using the "keystone" feature. This is used when your projector is located above or below some angle other than 90° to the centre of the screen.

As for the second tone, that may correct with the keystone.

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1 Answer

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go into menu, under image, and chose ceiling.

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