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Blue flashes on screen and then just quits - Projection Televisions

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  • Justin
    Justin Jun 01, 2008

    turning knobs in the innards of the set



  • Anonymous Jun 06, 2008

    I have

  • captmike Jun 06, 2008

    I have similar problem with my KP57WS500 Sony TV. When I turn it on, a green squiggly line appears, then disappears, followed by full blue screen falashhes, then quites. light flashes 8 times on front panel. Is it doomed, or can I save it? I am mechanically inclined and can follow a troubleshooting tree if provided.

  • LEstes Jun 08, 2008

    I have the exact same problem, even the 8 flashes of the LED. What's wrong with it?

  • Anonymous Sep 21, 2008

    i have had the same issues with my tv the first time it was the red tube and know it is the blue tube, i believe i will be looking for a new tv 500.00-700.00 to repair is not worth it , i think that sony should be recalling or stand behind there product this is a big expense on a 4-5 year old tv. i will be looking at a different brand that's for sure .

  • nbtwine Sep 26, 2008

    I have the same problem...Turn TV on...have sound and picture for about a minute...flashes blue, goes blue screen, and then quits. In addition, for about two years I have had red curvy lines across the screen...paid $2400 for this TV about 6 years ago...not very happy with the product...unusual for Sony.



  • nbtwine Sep 26, 2008

    By the way my TV model is Sony Projection KP-51HW40.

  • croweman Sep 30, 2008

    set comes on and works for less than a minute flashes blue and goes off sometimes screen is blue when set is off. it will not stay on/

  • mzegarski Nov 05, 2008

    I have Mitsubishi VS-50802 50 in. rear projection and the TV works fine for a short while then the screen flickers blue, goes all blue then fades and the TV shuts it self off. Any suggestions?

  • jbarenie Dec 16, 2008

    I have same problem with tv fashing blue screen and turning off after a minute or two. It sometimes takes 5-10 starts and 10 minutes to get it to stay on. TV is a Solny KP-51HW40. Can you help with the fix?



    Jim

  • isii Jan 22, 2009

    Blue fades in and out.....need to leave the set on......plus I also have red curvy lines on the screen.........don't know what the problem is. same as another poster

  • techphill Feb 03, 2009

    i have a sony KP-51WS500 HD tv and when i turn it on i will get a picture with over-saturated blue, quickly turning into solid blue, than shuts off. i get an error code 5 after. i looked inside and there is alot of dust. i remember researching the error and finding something about the D board being the cause of the problem

  • Anonymous Feb 19, 2009

    I have the dark outer blue, with a lighter "flashing" blue radiating from the center. I can change channels and I have sound. I can also bring up the menu...but that is it!

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My t.v. works fine when turned on I get picture of what I'm watching but ever so often blue light/blotches flashes through the screen in various areas of the screen while I'm watching t.v. The t.v. does stay on and I still see picture but with blue flashes of light coming in and out of the picture.
It seems to get worse as time goes by. I have a Samsung rear projection t.v. Please help.

Posted on Oct 14, 2008

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  • Projection T... Master
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Post your model. Sounds like the blue CRT is shorted. But let me know the model and I will let you know how to test it.

Posted on Apr 04, 2008

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Have Sony Model# KP-57HW40 Big screen rear projection tv..Has blue wavy lines across screen, and sometimes flashes blue, can you give me assistance??


Blue Picture Tube , bad Video IC on Blue CRT board.Or Blue screen drive control to tube needs to be adjusted down some.

Most Likely Bad Tube!

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TV screen Flashes blue and then shuts off.


When it flashes blue, are the flashes bright blue lines going across the screen with the picture in the background, if so, It sounds like the Blue tube or blue driver circuit is breaking down after a short period of time. If this is the case, the uPC that controls the set is detecting a large current drain on and is shutting the set off for protection, An engineers expert eye is required I`m afraid. Ian.

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1 Answer

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Try looking into the blue CRT lens while its on and see if the coolant has congealed. You will be able to tell if it has bacteria growing as this can cause the blue to be unresposive and make your screen have a blue haze. The coolant will need changing if this is congealed with bacteria. This is a common problem in all projection tvs blue and green are more prone to this sympton red is not.

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1 Answer

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Convergence amp ic bad or loose connection on ic's

http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/


Feb 26, 2008 | Projection Televisions

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