Sony KP-51HW40 51" Rear Projection Television Logo

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Anonymous Posted on Jul 08, 2014

Sony KP-51HW40 51" Rear Projection Television how to fix the blue screen?

5 Related Answers

D&L Services

  • 51 Answers
  • Posted on Mar 08, 2008

SOURCE: Sony KP-57WS500 57 in. Rear Projection Television

Hi Guys

Your problem here has to do with the amount of aging that happens to the three colour tubes - red, green and blue.

Blue actually ages slower than red and green. What actually happens is the green tube deteriorates and due to green being the predominant colour for brightness causes the blue tube`s flyback lines to appear - especially when switching between inputs or when the video is blanked.

No replacing the blue tube will not solve your problem as the tube is actually the best one of the three.

As someone mentioned there is a way to adjust this by removing the speaker grill assembly in front of the set. Doing the service mode adjustment with the remote is not the right way to solve the problem - you would be adjusting the colour gain and off-set values and would seriously be compromising the white balance of the set.

On the left hand side behind the speaker cover you will see a black square block with six adjustment points. Look for the one marked SCR BLUE, Switch the set to a unused input so the blue lines become visible. Now adjust the BLUE point counter clockwise until the lines disappear. A small adjustment should do it, Switch back to a picture and make sure the whites are still white.

This should sort your problem. I would however suggest asking a Sony service centre to do this for you. This is a dangerous thing to do as you will be working close to the 35Kv supply the the anodes of the three tubes.

I hope this answers your question.

Goo luck.

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A

Anonymous

  • Posted on Aug 01, 2008

SOURCE: Sony KP-61HS10 61 in. Rear Projection Television

my tv has the same problem but it blinks five time with no picture but good sound

Anonymous

  • 10594 Answers
  • Posted on Oct 28, 2008

SOURCE: Sony KP-57WS500 57" Rear Projection Television

When your tv shuts down after too much blue screen, how does its standby light flashes?
There would pause in flashes of this light, so count it and let me know to help you out.

shaun taylor

  • 1527 Answers
  • Posted on Nov 11, 2009

SOURCE: kp-65wv700 7 blinks

hello High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.

shaun

Chi Chu

  • 8457 Answers
  • Posted on Jun 06, 2010

SOURCE: BLUE SCREEN My sony KP 46wt500 hdtv ready rear projection has

Ur tv have a problem known as convergence problems.Ur tv convergence board must have it 2 STK convergence ICS and some or all it resistors to be replaced to solved convergencce problems.The shop will cost u $300-350 for parts and labors.

Testimonial: "Thank you at least now I know the problem can this be done yourself? or would it be better to leave it to a professional?"

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Common issue on this set--locate the master screen / focus block and lower the BLUE screen control until the blue cast is gone, only a slight adjustment will be needed.
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Sony KP-57WS500 57" Rear Projection Television

If you follow the info from this website, you will be able to fix your TV.
Use at your own risk. Please be very careful when working around devices that generate high voltage is excess of 32.5Kv.
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