Question about Sony KP-57HW40 57" Rear Projection Television

6 Answers

Blue Screen and TV shuts off

Intermitently, TV screen turns blue, then TV shuts off. Also, screen starting to go red now too. I've been told there could be a "short" that needs to be repaired on blue tube and other tubes...not sure I'm phrasing this correctly.Does this sound right? Is the TV worth fixing or should I just get a new one? TV is model Sony KP-57HW40 and is about 5 yrs old. Thanks! Mary Jane

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  • joeypalms Jun 11, 2008

    I have the same tv and the same problem. Can an adjustment really fix it? I s it true about the warranty extension from Sony? Also, what is code 4?



    Thanks,



    joeypalms

  • Anonymous Jun 29, 2008

    Redish screen with lines accross it, I removed the two front covers and very carefully adjusted one knob at the time for a couple of times having another person looking at the screen to let me know if I'm doing better or worse. it work it does not need much adjustment, I started with the bottom right knob first then I moved left to the next one and that was all it need it.

  • Anonymous Jul 08, 2008

    blue screen and tv shuts off and tv go on for a few seconds and turns blue

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6 Answers

Sony has a warranty extension on this until august 2008. They will pay for free to fix this problem.

Posted on May 18, 2007

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Check the CRT board first then if you find it O.k. the picture tube is defective!

Posted on Mar 14, 2007

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I had the same problem but now I have another this tv is garbage. Anyway your problem is free and easy. Pop off the two screw covers at the front bottom and unscrew. unscrew the next cover. There are six adjustments you need to turn the blue down a little bit. It is one of the bottom ones. Make sure you mark all original positions.

Posted on Mar 12, 2007

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The solution here is of course to never buy sony again. After paying $3000 for this set and having the tubes go bad - Sony should reimburse or fix this set. I own one and the same problem is happening. This is a design flaw or manufacturing flaw and SONY should stand behind the product they make NEVER BUY SONY AGAIN. John

Posted on Mar 11, 2007

  • John Schuholz Aug 13, 2007

    sent my set to tech for repair - tubes R no longer available. How does a company sell a product and then drop support for it after 4 years. NEVER BUY SONY AGAIN.

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Yes, you are correct on the phrasing. The CRT's were a common issue with these units and all three must be replaced as sooner or later the green will follow the other two CRT's. It was a great model and had a beautiful picture when operating normally. The CRT's are costing about 200 each for rebuild as the green and blue are mostly no longer available. Your repair cost are going to approach $1000.00 or more.

Posted on Mar 10, 2007

  • Don
    Don Mar 10, 2007

    Sorry to give you the bad news there...

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Hi

Is this true , that Sony will cover the cost of repair, warranty extension until august 2008?

My Sony 51" kp-51hw40 has a blue screen then turns blank.

The sound is still ok. The diagnostic code is AKB 1 and HV 1. The Red LED on the font of the tv blinks 5 times.

Please help. I contacted Sony by e-mail and they only gave repair tv services in my area.

Thank you,

shelbyss@yahoo.com

Posted on Apr 07, 2008

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Posted on Jan 02, 2017

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Here's a shortcut to what the blinking codes mean.
http://www.somelifeblog.com/2007/08/sony-tv-led-blinking-codes-what-does-it.html
Strange how some people have 5 blinks. Most with this problem have 8 blinks (like myself)

I still have the blue-flash-then-shutting-off problem.. (8 blinks meaning voltage error) but I did fix the blue lines.. The lines across the screen can be very easily fixed whether they're blue green or red. . No, I mean REALLY easy. Took me longer to get the cover off. Once the front cover is off it takes 10 seconds. This link was also posted recently in one of the posts below as a solution..
http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html
(My lines didn't look like the ones in the picture mine were several evenly spaced blue arcs)

After some research I believe the flash/shutting off problem means the CRT is going. I've also read that it might be the D-board and I'm not even sure that that is... But If it is indeed the CRT then I'll let you know it's very difficult to find a replacement blue CRT as this part has been discontinued.. but I did eventually find an alternate to an alternate part (yes that's the 3rd alternate !)) online for $256. Here: http://store.tv-repair-service-salinas.com/8-733-649-35.html

If you're bold enough to attempt that then good luck and please let us know if it worked.
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