Question about NEC LT 240K Multimedia Projector

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Can I project vertically by changing projector orientation?

I want to use my projector to project a vertical image for a project I'm working on. Will it harm the projector to run it held vertically - on its side - the projector itself rotated 90 degrees from normal? I have a ceiling mount which screws into the projector so I can hold it securely in this position. I'm worried whether it will overheat or suffer some other problem I'm not thinking about.

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  • jnfrazer Sep 17, 2007

    The presentation will play from a DVD player; the DVD created in Final Cut from Photoshop stills. If I can use the projector vertically, then I will be able to use the whole frame - fill the whole frame with image. If I have to use the projector horizontally, then I need to create the whole thing with a vertical image in the middle and black on either side filling in the frame. So I can have a more pixels devoted to the image the viewer will see if I can turn the projector itself sideways. I wish that NEC provided some option to project a vertical image but apparently not. Of course I need to figure this out before I start making the Photoshop images. Can you tell me where I can read about the people who have used theirs in a vertical position with no troube? I haven't been able to find this on my own.

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I have checked over the specs on a few different sites and ive found where a few people have stated that theyve used theirs in vertical position with no problems. If you are that worried you should be able to go to whatever program you are using and rotate the picture there also.

Posted on Sep 17, 2007

  • 1 more comment 
  • scott gregg
    scott gregg Sep 17, 2007

    ok, i couldnt find the site i looked at last night so i decided to give them a call. The service tech stated that you actually can pop a lamp due to air flow problems. He highly reccommends that you dont use it this way, it wont HURT anyhting but you'll blow a few lamps and that can get pricey. for something shorter its possible but he still does not recommend it. He could not recommend any other way to turn your pics or presentation. This model was not designed for a panoramic view.

  • scott gregg
    scott gregg Sep 17, 2007

    you could always resize your stills using photoshop and redo the whole thing but wow that would be alot probably. sorry cant give you a more likable answer.

  • scott gregg
    scott gregg Sep 17, 2007

    support number i called was, 8003665213

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1 Answer

I would like to project the image 'window' sideways so that the rectangle of the screen is vertical (not horizontal) - how can this be done?


Probably not possible with this projector. You could simply create a "mask" on the image you wish to project and use the normal orientation.

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It's probably you have a busted DMD chip, have your technician replace that, better yet buy a new projector because replacing that chip costs almost a brand new unit.

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Image problem


IF I understand the problem from the limited info in your question, the problem is a distorted picture on whatever surface [probably a wall, or screen] onto which the image is projected.

With all lenses, the axis [centerline of the lens projected] MUST be absolutely PERPENDICULAR [in both the vertical and horizontal planes] to the perfectly plane [flat] surface onto which the image is projected.

IF for example, the projector is mounted in a rear corner of the room, and the camera is aimed downward and to one side to project the image on the center of the opposite wall, or a screen located there, the image will be distorted. It will be larger on one edge [fartherist from the lens] and smaller on the opposite [nearest] edge.

If it is non-perpendicular in only one axis, then two opposite edges will be different lengths, and if out of perpendicular in two axis then no edges will be the same length.

The solution to this problem is that the center axis of the lens must be perpendicular to the surface projected on, in both vertical and horizontal axis.

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Two reset attempts to factory settings seems to have been the fix.

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White vertical line in the center of projected image


I have a Dell 2400MP projector that had the same problem of vertical white lines appearing over the screen.

This may seem like a simple solution, and I don't know if this will work for you, but the way I solved the problem was simply to press the bottom side of the projector, until the white lines disappear . Until now, the problem has yet to resurface.

Here's some simple steps:
1. Turn on projector
2. Connect projector to computer
3. Focus projector
4. If white vertical line appears, firmly press underside body of projector
5. See if vertical white line disappears
6. If not, try slowly pressing other parts of the body of the projector and see if white lines disappear.
7. If solution doesn't work, you may need to send it to the service center.

Hope this solution works for you.

Best Regards,
Ghazali Ridzwan
http://www.ghazaliridzwan.com

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