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For my HD33 projector, a vertical line appears on the screen

The line seems very dominant on the bright long shot scenes. It is almost invisible in darker scenes. The line is like the edge of a glass panel as if watching the movie thro a glasss panel on one half of the screen.

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

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Kimi
  • 277 Answers

SOURCE: MT830 Color Convergence (Blue Left - Yellow Right)

take a look here: http://www.extremetech.com/article2/0,1697,1049289,00.asp "... The others, however, have lost portions or all of their blue channels. TI's theory is that the shorter wavelength and higher energy of the blue light apparently causes the organic polarizing material in the LCD to get lightburn much faster. TI showed us a damaged LCD panel that controlled blue light transmission, and there was a large spot in the center that was apparently burned out..."

Posted on Oct 31, 2006

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SOURCE: Vertical bands appear on projection image

Check the Panel ribbon cables and re install

Posted on Jun 04, 2007

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SOURCE: Projector shows only 50% of the computer screen

mine does the same thing but i can see the whole screen it's just half height full width, above solution about zooming to 1X is what i've been doing to fix it for the last 6 months, needs to be done every time I turn the power back on. Anybody know of a more perminate fix?
Now my power supply has gone have the projector in pieces, found a failed on transistor but because it's over heated can't read of it what type it was....
Already replaced two blown diodes in the main H-bridge
Looks like one coil will need rewinding.
If anybody has one in pieces I would be great if you can help me work out what the blown transistor was.

Posted on Mar 25, 2008

  • 8 Answers

SOURCE: Vertical lines on projected image from a Dell Data Projector. White vertical lines are appearing at even spacing across the width of the image projected. At a loss to how to fix this. Any ideas as to

that is due to lcd filter units , try to align, precision work

Posted on May 25, 2009

  • 1 Answer

SOURCE: Thin vertical line appears on projector

I have found that vertical lines that suddenly appear from projectors are due to poorly connected cables. Sut off your projector and wait for the fan to go off. Then unplug the connectors from the computer to the projector and secure them again, making sure to go all the way. Hope this helps.

Posted on Oct 16, 2009

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PICTURES ARE BLACK


6 Ways To Fix Too Bright and Too Dark Photos

Recompose The Photo This is probably the simplest solution. When taking a photo of a scene with very bright and very dark parts, move your camera to eliminate one of the extremes. In the case of the band, I would have either closed the curtains for the shot, or recomposed completely and photographed from the window looking at the band, and the crowd behind.
Use Exposure Lock If you can't recompose the photograph, instead tell the camera what part of the image you would like to see. The rest of the photo will be either over or under exposed (too bright or too dark) but at least you will see your subject. You can dothis by placing the center of the image at your subject; half depressing the shutter to lock the focus and exposure; move the camera to re-compose the image; and fully depressing the shutter.
In the band image, the camera chose to correctly expose the scene outside, but even if the band member had been correctly exposed, the window would have ended up being over exposed and you would just have seen white.
Some cameras have an option called 'spot metering' to set the part of the image you'd like to be correctly exposed. If your camera has this setting, enable it before using the technique above.
Use Fill In Flash If your scene has a sunny background, but your subject is in the shade (or has a hat on), turn on the flash (as I explained way back in tip number 9 - Using Flash During The Day). I know it seems wrong but it really does work! By using the flash, your subject will look as bright as the background. This would have worked well for the child shot above.
High Dynamic Range Imaging This technique is not for the faintof hearted. It requires a subject that does not move; a good camera with the capability to set the exposure and output RAW images. A tripod and image editing software like Photoshop CS3 are also needed.
High Dynamic Range Imaging (or HDR for short) is a technique for placing both very dark and very light areas in the same photo. It requires you to take a number of photographs of thesame scene - each with a different exposure. First take the shot using the camera's recommended settings. Then, in manual mode and keeping the aperture at the same value as the first shot, take a sequence of shots - each shot having a different shutter speed (above and below the original). You'll have 5-9 shots of the same scene all in different exposures.
hdrunder.jpghdrmean.jpghdrover.jpg
Merging the three images to the left creates the HDR image below. Thanks to Photomatix for the images.
hdrmerged.jpgNow import these into your favorite paint program. I use Photoshop, but you can as easily use a cheaper program designed specifically for HDR photos like Photomatix. Follow the HDR directions and the paint program will merge these images into one great looking shot!
Use a Filter If your scene is of a brightsky and a dark ground (for instance at sunset, or on a cloudy day), you can use a graduated neutral density filter. This filter cuts out someof the light from one part of the photo (the sky). This will correctly expose the ground and the sky without needing to use HDR. These filterscan be complex to setup, so I don't usually recommend them for beginners.
Fix The Original Photo in an Image Editing Program twobright2.jpgFinally, if you can't take another shot at the same location, you can fix the original image by changing the levels using a paint program. This works best when your subject is darker than the rest of the photo (because cameras lose detail in over-bright areas). I've brightened the band member in the top image using this technique and while it looks okay in thissmall shot, this technique can tend to amplify any noise in the image. The darker the subject, the harder time you will have fixing the image.
I discuss exactly how to use this technique in lesson 2 of my free Image Editing Secrets course. I have a tutorial for Photoshop, Photoshop Elements, Paint Shop Pro and the free Google Picassa.
- See more at: http://www.digital-photo-secrets.com/tip/140/6-ways-to-fix-too-bright-and-too-dark-photos/#sthash.58eENOTt.dpuf

Jul 09, 2014 | Nikon D3000 Digital Camera

1 Answer

I have a vizio Vt470m....the picture has always been perfect. All of a sudden when picture shows scenes with very little light (dark scenes like at night, space, low light) the black color almost look


Either the TCON board or the LCD panel has failed. Start by replacing the TCON board. If the problem persists, the panel is bad and the cost to replace it would be too high.

Mar 22, 2014 | Vizio Televison & Video

1 Answer

Toshiba 40xv640u vertical ghosting


This will require a technician to resolve with some specially equipment.

May 14, 2012 | Computers & Internet

1 Answer

Image is bright but there is a slight issue - on the left hand side a purple line displays vertically. Anybody knows why is this fault appeared and how could it be solved.


There is three LCD in the projector red, green and blue. If green LCD make any fault mean line or dot or dots then screen show these line or dot in purple color:
If line is very straight and sharp edges then green LCD is faulty and need to be replaced.
If line is not straight and faded edges then some thing in LCD block so your projector need service

Feb 22, 2011 | Sony VPL PX40 Multimedia Projector

1 Answer

Hello, I would like my pictures to have a white background. When I take the picture on a white background the background ends up looking gray. I am taking pictures of baby clothing and I want the clothing...


Exposure meters are designed on the premise that the scene is an average, middle gray, in brightness. If you take a picture of a white dog playing in the snow, the camera will try to make the picture come out middle gray (a gray dog playing in gray snow). If you take a picture of a black cat sitting on black asphalt, the camera will try to make the picture come out middle gray (a gray cat sitting on gray ground).

If the white background is dominating the scene, the camera will reduce exposure to try to make the entire scene come out middle gray. The solution is to meter on something else. Move in close and fill the frame with the subject, press the AE-LOCK button, then move back, compose the picture, and take the shot. For full details, refer to the "Shooting with the exposure locked --- AE-LOCK" section in the manual (page 52 in my copy).

If you're taking a lot of pictures, you might want to switch to Manual mode and set the exposure accordingly.

Dec 29, 2010 | Sony Cyber-Shot DSC-F717 Digital Camera

1 Answer

Negative effect on Bright areas of Monitor/TV


Try demagitizing the moniter. In the monitor's menu it will have a picture of a magnic , select it. Sometimes it is listed as degrous. After selecting this, your screen will seem to spin then settle. If your still have problems, a magnic may have come close to the moniter while it was being stored, and that will ruin the picture.

Sep 21, 2009 | Computers & Internet

1 Answer

When I am watching a dvd with a dark scene it seems to get even darker almost to the point where I cant see anything.The light scenes are fine. Is there a setting I can change


try adjusting your brightness a little highter up and if you have a LCD tv you can adjust the backlight through your picture/video/image settings in your On Screen Display menu to your television

Aug 07, 2009 | GPX D1816 DVD Player

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