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

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42 inch sony vega rear projection LCD , bought 2 years ago, bought dec 06

My Sony vega remote will only turn the tv on(power button works). None of the other remote features (i.e. vega gate, volume, etc..) will work. Also, the TV panel will not work either(vega gate, volume, channel)

When the TV turns on, the screen is full with all verticle color lines, very thin lines, on the screen, like a rainbow of colors in a repeating order.

When the cable box connected, i can see the channel image(movie, show, commercial, etc... faintly through the colored lines.

From the trheads i've seen, i guess there are a lot of sony rear projection tvs with a few problems. Considering that my tv is displayed a picture, lines, colors, etc... are the bulbs fine and am i dealing with a bigger issue

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6 Suggested Answers

  • 59 Answers

SOURCE: SONY 57' HDTV color projection TV, red color dominance on-screen

these tv's have a problem with bad crt's you could try to replace the red but a better choice would be all three

Posted on Oct 31, 2007

  • 3459 Answers

SOURCE: color distortion and arched picture

Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip Failure ( 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 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.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, 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.

TV set after fluid change


2c07611.pngSolution #2

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

Posted on Feb 22, 2009

  • 10594 Answers

SOURCE: Sony HD Projection TV - Picture bent and seeing multiple colors

This is due to failure of convergence out ICs that need to be replaced in D board.
If you are comfortable with TV repair let me know to provide you technical info to fix TV.

Posted on Apr 17, 2009

  • 135 Answers

SOURCE: Sony KP46WT510 picture goes back and fortto horizontal color bars

The pictures show the result of a bad terminal input board. You can verify this by checking the inputs. Connect devices to the board and try different inputs. You will most likely find this problem on the tuner and component input were your DVI and composite video will be ok. If it is the same on all inputs replace the A board

Posted on Jul 09, 2009

  • 8617 Answers

SOURCE: Sony 51" Rear Projection TV is blurry with colored ghost images

Thats caused by a convergence failure. The Sony type 1 convergence repair kit from will usually correct that issue the kit contains the components and the CD with repair instructions so you can repair yourself.

Posted on Dec 21, 2009

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SOURCE: I have a sony projection tv. Colors/piture not right

Replace convergence ICs and a 5 amp pico fuse on power supply. ICs are part number STK392-560.

Just be sure to use thermal paste on the ICs or they will self destruct in a short amount of time.

Posted on Jul 06, 2010

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Problem for Sony Grand WEGA KF-42SX300 42 in. LCD TV Only goes from red to amber on led

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Reset code after replacing bulb in sony grand vega

hello Press "Display" on the remote, followed by the 5 button, then the sound up key, and "Power On." Do this while the TV is in Standby mode.Then press "Jump" 3 times to enter the DE Service menu. The TV screen will display the total lamp time hours.Reset the lamp time by pressing channel 3, then mute, then enter. This will put your lamp counter back to 0. hope it helps


Nov 02, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

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Blue tint on bottom of screen

I have the same KDF60XS955 sony and have the same problem. I called sony customer support and was told there was a recall on the optical block for this tv. But the recall ended in Dec. of 2008. I was upset that they did not call or send out a notice to me. They should of had my information because I had a different issue that they sent someone out to fix a few years ago. They said it was an expensive fix, like over 1000 dollars. Instead of fixing it they offered me a deal on a smaller tv, a 52 inch sony. I could buy that one at a discount which is about 1100 dollars. I told them that I thought that was the worst deal I have ever heard of. Why would I spend about 4000 dollars for a tv 4 years ago only to be told that I could buy a smaller one today for 1100 dollars more. I said if I bought that 52 inch tv today, what would happen 4 years from today, am I going to be offered an even smaller one for more money again? I thought I was buying a top of the line tv back then, I only wished it would have lasted longer than this. Not happy!

Mar 16, 2009 | Sony KP-46WT500 46" Rear Projection...

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Sony WEGA 42" LCD Rear Projection TV It won't change channels up or down with the remote or the buttons on the television.  It will change channels with the number pad on the remote but not the channel...

Hi, it sounds like your saying that punching in 08, 09 etc. works but channel up button won`t switch from 08 to 09 correct??? If so you need to go into your tv`s menu and "autoprogram" your channels into memory, video-tek

Jan 29, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Blue edge from top to bottom

Its problem of blue LCD in light engine.
Sony will repair it with very little money or even free up to Dec 31, 2008

Click Sony Support for details...hurry up as time is running.

Good luck.

Dec 23, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Dead sony

The $1200 was for the lcd engine not the lamp. You should change the lamp. The buzz is the power supply trying to light the lamp.

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42 inch sony grand wega

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