Question about Sony KP-46WT510 46" Rear Projection HDTV

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I have a Sony wide screen (rear projection) and blue is starting to bleed thru all the other colors. I called a repair man and he told me it was the tube. He went further and told me the tube may not be completely sealed and a dust particle may have gotten into it. He said there is a process/piece of equipment he can do at his shop to reseal the tube (take about 4-6 hours). It this true? Should I just buy a new set, or find a new repairman?

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Common failure of this one is convergence.when unit is on does the blue or red not sit ontop each other.go into menu find convergergence see if you can adjust the red onto green then blue onto green.if not you have bad convergence ics part number STK392-560 use STK392-570,also check pico fuses(yellow) all 5 amp location ps8006,ps8002,ps8004

Posted on Sep 24, 2009

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Picture is not as clear, brought 2005. Has blue color on lower right side of screen.


You may want to do some research with the model number via Google--"problems"

The set indicated here is LCD rear projection--it uses a OPTICAL LIGHT ENGINE and a lamp= lamp shines into the engine and goes thru a series of lens and baffles and emerges from a 2-3 inch wide lens at top of engine--shines it into a mirror at the rear of set which places the picture on the screen.

The first place the very bright and hot lamp hits inside the engine is the BLUE SECTION----damage occurs and you get blue streaks or area anywhere on picture.

Damage is permanent and only way is to replace 800 + engine.

You might want to at least call Sony with the model number as they were extending the warranty (beyond original) on several models and repairing or replacing sets outright.

They were not doing this because they wanted to but because of several class action lawsuits they settled in this way.

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I just replaced the bulb in my Sony 55'' Grand Wega. the picture looked fantastic the first day. turned on the TV the next day and everything that should have a ''white color'' looked pink. the blues...


Please adjust TINT control of Video Settings in Menu that will adjust color tone of TV. I do not think this problem is related with Lamp because TV screen does not have any color blobs or spots.
Above solution is for Sony KDF-55WF655 model TV, if your model number is different, let me know.
Thanks.

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1 Answer

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you can remove front speaker cover,then remove screws from board,you will see 6 controls,3 are focas(all in a row)3 are screen controls.sets are for red green and blue,blue should be to the rite,turn blue controls until picture gets better.they are labeled screen and focas

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1 Answer

Colors appear to be bleeding out to the side.


have you tried the blue convergence adjustment via menu

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1 Answer

Blue haze and dull yellow patches on screen


The light engine in your set has gone belly up. It is a very expensive repair. Good news is that on a whole bunch of models like yours Sony has extended the waranty on the light engine. Check with a local authorized Sony service center and give them the model & serial number and you might get a free ride. If I were a betting man I'd take odds on 'you're in luck'. LOL

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1 Answer

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Hi Fkanode.
The failure(s) in your TV is related to a part called light engine or optical block and Sony TVs are known for these kind of failures with the video showing with different colors or lines.
Check the link provide for more info or if you would like to try fixing the TV yourself.
Let me know if you would need further assistance.

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RED-GREEN-BLUE TUBES cost $400.00 per Tube.

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I had the same problem about a 8 months ago. I searched online and found that there is a problem with one of the color guns. They need to be replaced. I don't remember where I found the information, but there is a number or something to call for this problem. I think that my authorized sony repair man knew of the problem, there are other models that have the same problem. Anyway, sony replaced all three guns in my tv FREE of charge, and my tv was no longer under warranty. They did all repairs and fixed my tv.

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1 Answer

Yellow vertical bar on right edge of screen


Your set is starting to get a convergence problem and the only way to repair it is by changing the convergence IC's,(3)one for each color,the blue migh be showing more now but soon all 3 colors will be out of alignment and you will not be able to correct it with the custumer controls,is great that it has worked for so long without this problem,if you are familiar with tv service you have a place to check but if you are not too familiar be safe and call for help from a pro-servicer.Let Us know how it goes.

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