Question about Sony KP-51WS500 51" Rear Projection Television

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The screen is all blue

The tv screen is totally blue. I have replaced 2 color tubes on this tv. Now what?

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Back of the screen control for the blue tube

Posted on May 27, 2010

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I'm having issues with color? Every blue is now green. Can't adjust the tint. Any fixes?


You didn't say what the model number of the TV was, so I'll guess it has tubes for each color Red, Blue and Green. The blue tube is probably weak. If you really want to spend the money on replacing the tubes (costly) you may be able to buy a similar sized flat screen TV for less than the cost of the repairs.

Feb 18, 2016 | Televison & Video

1 Answer

I have Zenith rear projection TV Model IQC60H95W.The blue tube does not work. The red and green project. Is this a bulb or tube and are they available to purchase? The TV was made in 2001


This is a CRT(cathode ray tube) not a bulb. A Bulb is totally different. If you replace one Tube, you need to replace all 3 or the colors will never match properly. However, This model no longer has parts available. Even if they were, the cost would be close to $1000 in parts. I would not recommend repairing this TV.

Sep 14, 2014 | Zenith Televison & Video

2 Answers

My new (used) Sony Trintiron recently took a fall and the screen was damaged. The damage appears to be a gash approximately 4-41/2 inches long and 1/4 inch wide. Is there a way I can fix this or get a...


The tv CRT-(tv tube) screen itself is broken now or dying already and tv PCB board broken require replacing too,tv will still work after replacing PCB board or repairing it but tv will not be watchable becauuce tv screen will all mess up like screw up picture colors will have black and blue colors be all over the tv screen.Tv now will not be worth repairing if require replacing CRT-(tv tube) will cost the same as a new tv if tries replacing CRT-(tv tube) if u still can buy it.Can't buy analog CRT-(tv tube) anymore.Sorry time to buy a new tv.

Apr 14, 2011 | Sony FD Trinitron WEGA KV-34HS420 34" TV

2 Answers

Turns on for 30 sec then goes bright blue and goes back into standby. turn back on it does it agian


This is blue CRT problem in tv as it is rear projection tv that has three CRTs red-green-blue inside to project color picture on front screen.
Blue CRT (tube) will be replaced to fix the issue and it is job of Pro because lots of adjustments are required after replacement of tube.
Local tv repair shop will help you for that.
Thanks

Oct 02, 2010 | Sony KP-51WS500 51" Rear Projection...

1 Answer

The colors are kind of 3d and not focused there is a wave of blue green and red that dips down in the center of the screen. is there some way to focAS THE LAMPS OR SOMTHING TO MAKE THE PICTURE MORE CLEER?


u have 2 problems one is the convergence ic and also u need a oil chage on picture tube blue a green , maybe total repair $400 , u need to contac a tv shop for thie job

Apr 13, 2010 | Philips 43P8341 43" Rear Projection...

1 Answer

53 inch projection tv...seems like the color red and color blue have shifted giving me a picture with red and blue shadows


For CRT projection TV's, this indicates that the Green picture tube is burned (warn out). The less green that strikes the screen, the more redish the image will look. You will need to find an old school TV repair shop that knows how to replace picture tubes.
In the case of a DLP style TV, the color wheel needs replacing.

Dec 29, 2009 | Hitachi Televison & Video

1 Answer

I was just given this t.v because friends couldn't figure out what is wrong with itl. The colors don't line up right,looks kinda blurry depending on the lighting of the program being watched. How do i fix...


According to the manual:
1) go to the "TV Main Menu"
2) Select "Screen"
3) Select Adjust Projection TV (obviously only if a projection TV).
This then allows you to adjust the TV's 3-colors. Selecting GREEN CENTERING brings up a control panel that lets you center the green projection tube on the screen. Selecting RED CONVERGENCE or BLUE CONVERGENCE lets you align the Red & Blue projector tubes. Centre the green projector tube 1st. Then adjust the red & blue until the test pattern on the TV screen appers white.
Good Luck!

Jun 08, 2009 | Proscan PS50700 50" Rear Projection...

3 Answers

I have a glow or a shadow around everything I watch...I tried the converse blue but i dont know if i did it right bc it didnt work...how can I fix that?


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 17, 2009 | Philips 50P8341 50" Rear Projection...

1 Answer

The blue color sags in regular tv but is fine in hd


Your TV most likely has one or more 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.
701cb04.jpg
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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 www.TvRepairKits.com. 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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

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.

Apr 06, 2009 | Akai PT4298HD Rear Projection Television

1 Answer

Color


It needs repaired. I can think of many different possibilities causing the problem: 1. Shorted video luminance driver transistor. Should be under $200 total repair if you take set in. 2. Shorted green kine bias transistor. $200 3. Failed jungle ic. $250 4. Shorted green gun in the picture tube. More than you paid for tv set... Rca picture tubes commonly run 25% more than the tv set did new!!!!!!!

Nov 27, 2005 | RCA F27625 27" TV

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