Question about Sony Grand WEGA KF50XBR800 50" Rear Projection HDTV-Ready Television

1 Answer

Red-striped ghost images.

The set is a couple years old. When it displays images with dark areas bordering light areas, especially with dark appearing to the right of the light, a ghost image appears along the light side of the border. The ghost consists of red stripes that appear stationary relative to the image (i.e. moving images appear to pass by the stripes) but it only appears in the area along these light/dark borders. It appears in HD and SD, as well as signals through different inputs (cable box and DVD player, both connected via component cables). Adjusting the image revision didn't fix the problem.

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  • Anonymous Dec 27, 2007

    I have the same problem - exactly as you described.

  • Stevies Jan 08, 2008

    Thanks for the input.  I'm 99% sure it wasn't caused by a static image, because it has rarely if ever had static images left on it, or been used very much (mostly just weekends and holidays).  And unless I'm misunderstanding what happens with burned-in images, the stripes appear and disappear according to what's being displayed.  Also, the aforementioned striping effect occurs over the entire screen, and there has definitely never been a static image of narrow stripes left on the screen.  Are there any other possible causes for this? 

  • Viewer Feb 09, 2008

    Yes, I am experiencing the same problem. I have tried the image revison with no success.

  • Knapster Mar 06, 2008

    I have had the same red/pink ghost image for a couple of years.  It is to the left side of the images.  If you use a smaller screen image the ghost image runs along the entire right side of the frame.  Sony is no help.  From having worked with microscopes and projection aligners in the semiconductor industry, it behave like a lamp collimation issue, where the lamp needs slight adjustment in its position in the holder.  But there is no way to do that, that I know.

  • CVPJ Mar 06, 2008

    I had 1/2" red stripe on right side and green ghosting on images. A Sony tech came to my home and using only the remote, he completely recalibrated the picture using the procedure from a service buliten. He did not even touch the set itself except to get the model #. It took about 30 minutes for the entire procedure. I was charged $99 and he was gone with atotal time spent of about 1 hour. The picture is like new!!!

    PS:  A local TV repair shop said the set was not worth repairing.



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When you leave your TV (no matter what kind) and you leave it for long periods of time on a static image or something.. the image tends to burn in to the screen... so changing the glass would be a way to fix it.... the problem is that that kind of repairmen is more expensive and difficult than buying a new set...

Posted on Jan 08, 2008

  • Asdrubal Perez Jan 08, 2008

    jum.. that is really strange.... are you getting the signal from a decodifier or just from a normal cable?
    try with diferent inputs.. other wise, it must be some rusted or sulphated thing near lightbulb... hard to tell without looking at it..



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Pictures appear to be darker than original in print outs.

You can make several adjustments to improve your images such as lightening dark areas, changing the exposure, sharpening blurred edges, and changing the brightness and contrast.
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Adjusting the image Follow the steps below to make adjustments:
  1. Click the View tab and select the image you want to edit by either clicking the image, or by clicking the small box at the bottom left corner of the image. Figure 1: Select the image c00603524.gif
  2. Click the Edit tab and then click the Advanced tab.
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GHOST: May be described as "Out of Convergence" but ghost is still attached to main image.
A "ghost image" appearing to the left or right of images in the picture. Can be varying shades of a primary color (red, green, or blue) as well as gray. Can easily be seen in the 4 x 3 mode, at the edges of the picture.

To correct the problem, please do as follows:
  1. Access I2C Menu. (See page 57 of the Service Manual).
  1. To enter the I2C Service Menu, with power off, (on the front control panel) press and hold the INPUT button. Then press the POWER button for two seconds. The following Service Menu will appear.
03b_ghost_image01.gif Figure 1
  • Be sure to press SELECT after each change to SAVE the new Data.

  1. Using the Remote Control joy stick, scroll down to next page (see Figure 2) until LCD ADJUST is highlighted.
03b_ghost_image02.gif Figure 2
  1. Move the joy stick to the right to cursor right once. The next page will appear with the word GHOST highlighted.
  2. Cursor right again, and a white screen will appear with a BLACK SQUARE in the center, as in Figure 3. You will see LCD ADJUST, followed by “SHP” and a number (value).
Figure 3

  1. If the unit is out of adjustment, you will see a gray ghost on either side of the black square. Move the joystick to the right or to the left until the ghost disappears. The number values will change up or down.
    • If the ghost adjustment is off with a lower value, there will be a ghost to the left of the square.
    • If the ghost adjustment is off with a higher value, there will be a ghost to the right of the square.
  2. Once you get the square to look good without ghosts, press "SELECT" to save any data values that have been changed.
  3. Press the "EXIT" button three times to return to normal picture.
  4. Adjustment is completed

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1. Power off -- let bulb cool.
2. Display - 5 - VOL+ - Power (in quick sequence) to display service menu.
3. Go into the user menu and set auto revision back to auto.
4. Put an image on the screen that shows the problem. I always found the edges of a 4:3 aspect ratio signal displayed the ghosting very well on my set.
5. Use 2 to scroll through the categories to find D GM TG
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7. Write down current value.
9. Use 3 and 6 to change the value to minimize the ghosting. You should only need to move it up or down a value or two.
10. Press Mute - Enter to save the changes.
11. Power off and let the bulb cool.

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