Question about Sony Grand WEGA KDF-55XS955 55" Rear Projection HDTV

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Missing color in picture - red

I noticed that the colors were looking sort of fadded. Reading the manual it say's one of the solutions would be to replace the bulb. I did, and now the colors may be brighter but we are still missing the color red as in before we replced the bulb. What is supposed to be red looks brown and green's look yellow, etc. I set the colors back to original seetings, no help. Played around with the hue and color bars, no help. What am I missing???

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For the KDF55XS955
possibly it could be the connections in back of tv if using the y p b connections, mabey a bad cable or one is unpluged or the signal source.

Posted on Jul 05, 2008

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1 Answer

In picture i face some sort of red lind in centre help me to solve this problem


let know the brand and model number as different ones have different solutions----if projection does it look 3d with colors skewed?

Mar 24, 2012 | Projection Televisions

1 Answer

Sony 60" HDTV Plasma WEGA....Picture Problem


My guess is that you're not missing the color it just appears muted... That problem is a common one in both the 50 and 60 inch models. And if you change video mode with nothing hooked up you'll see a faint color where none should be...
That's simply dust in the optical block on one of either the red, blue or green lcd panel. Wipe it down with a non-linting cloth and a "light" amount of windex and you're back in business...
But check it out by switchin through the video modes with nothing hooked up.. The faint color you see if the lcd panel that's having the most problem and the one that's muting your green.
Bill

Nov 10, 2007 | Sony Grand WEGA KF50WE610 50" Rear...

2 Answers

Looks like its in 3d red and green


Please do us a favor and rate this solution after reading.

Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


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69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Please do us a favor and rate this solution after reading

May 14, 2011 | Hitachi 43F300 43" Rear Projection...

3 Answers

I have red and green shadows. I tried using the Converge Red/Blue and Multipoint Red/Blue functions as described in the manual but neither worked


The tv 100% have convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike?The tv have a dead convergence board,the 2 STK convergence ICS and some or all of it resistors are dead too.These parts on the tv convergence board,must be change to fix the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Dec 10, 2010 | Philips Projection Televisions

1 Answer

Double picture and colors are neon green and pink


Your TV most likely has fone of two possible problems.

Problem #1 - Failure in the convergence circuits. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

3dc9420.jpg
645fba6.jpg
0dcec37.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed. Notice how dull the colors are and how white the screen looks. The screen may also look red, orange, dull, etc.

9e7eb5b.jpg

TV set after fluid change. Notice how bright the colors are now. Everthing looks crisp and sharp again.

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

May 20, 2009 | Zenith R57W46 57" Rear Projection...

1 Answer

TV picture is red.


Normal color picture is composed with 3 colors R-G-B (Red-Green-Blue). Picture turns Red means: Missing Green and Blue colors (many reasons: bad contacts, projector tubes dead, and other...). Try to give some "tabs" to diagnose ... I don't know what is the type of your Projection TV, how long you owned it, to have more idea.

May 15, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Colors shadowing eachother, adj convergence, but will not save.


Sounds like your convergence IC chips have failed. You can buy the parts from various suppliers or you can just get a complete repair kit from www.TvRepairKits.com

Mar 15, 2009 | Philips 46PP9302 46" Rear Projection...

1 Answer

Hitachi Ultravision50vf820


use the advanced options page and reset the factor blue and red convergence defaults then do re apply the auto color defaults color at first it seemed very red (which is good because red was the missing factor in the green picture) but after reseting all the color and tints to the normal ranges I then reset the color auto correct again and all seems fine.

Oct 22, 2007 | Hitachi UltraVision CineForm 55VG825 55"...

1 Answer

57" Toshiba with wavy green/red lines "good overall picture"


Appears to be a convergence problem, the chips are located on large aluminum heat sinks. Check near the 2 or 3, STK IC's for + and - voltage usually 20 to 25vdc. If 1 or both are missing, check microfuses. They should both be close to equal in voltage reading, if not, turn set off after it has been on for 10 minutes, feel the heat sinks at each IC,if one is hotter than the other, replace both IC's or all 3 if it has them. Now check the small low ohmage resisters in and around the STK IC's and you will most likely find a few burnt or discolored and have changed in value, replace these or the new chips installed will self destruct.

Jun 26, 2007 | Toshiba 57H81 57" Rear Projection...

1 Answer

Dark picture


use the advanced options page and reset the factor blue and red convergence defaults then do re apply the auto color defaults color at first it seemed very red (which is good because red was the missing factor in the green picture) but after reseting all the color and tints to the normal ranges I then reset the color auto correct again and all seems fine.

Sep 21, 2006 | Hitachi 53SDX01B 53" Rear Projection...

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