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

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Sony KP 57HW40, blue flashes and sometimes shuts off

I figured out how to get rid of the red or green archs thanks to FixYa a year ago. Small adjustments to the screws does it. I was a EE so not dumb. Now it gives me periodic "blue flashes" on the screen. Whole screen blue for an instant. Sometimes it shuts itself off. Now comes the question, since it must go in for repair and repair is expense I am guessing since it may be a board or a part, is it really worth fixing?

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  • Anonymous Jan 20, 2009

    blue flashes tv shuts off then the standby light flashes eight times in a row

  • sweetierook Jan 27, 2009

    green arch lines screen turns blue flashes turns itself off

  • cowboy92684 Jan 29, 2009

    what screws did you adjust to fix the lines? also i have the same problems witht the blue flashes and also some red flashes and it turns it self off alot then it stops for a week and then it does it again can anyone help?

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  • Master
  • 899 Answers

Can you solder? there may just be some dry solder joints and or caps and a voltage regulator that are causing this.
otherwise you are looking at a $400 or so repair!

Posted on Jan 11, 2009

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Posted on Jan 02, 2017

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1 Answer

I own a KP-57HW40 set that has a color and shut off issue. Started as a green tinge problem to the screen after watching for a few hours. Started becoming more and more frequent a couple months ago....


IF YOU HAVE A RA 6 CHASSI THE TUBES RUN HOT ANOID CATHOD SHORT IF YOU TAP ON THE NECK OF THE TUBES AND GOES TO SOLID COLOR THEN SHUTS OFF YOU HAVE TO REPLACE THAT TUBE ALL 3 TUBES WILL HAVE THIS PROBLEM

Feb 09, 2010 | Sony KP-57HW40 57" Rear Projection...

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Sony Color Rear Video Projector - KP 57hw40 / Mfg. February 2002


i have the same problem picture is blue/green with blue and green arched horizontal lines

no picture at all only sound then tv shuts off after 5-10 seconds and then a bright blue flash in the center of the screen

have tried adjusting the voltage screws didnt do anything

Jul 13, 2008 | Sony KP-57HW40 57" Rear Projection...

1 Answer

A few green flashes and the TV shuts down, blinking stand by light.


If you get rid of your TV I will buy your blue Tube Mike Audiomonkey@comcast.net

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1 Answer

Kp-57hw40 screen goes bright red or green then powers off


http://esupport.sony.com/perl/news-item.pl?news_id=24
heres a recall of sony hope it helps.

Dec 18, 2007 | Sony KP-57HW40 57" Rear Projection...

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Sony KP-57HW40 Error Codes 6 & 8


ITS PROBABLY THE RED PICTURE TUB (CRT). IT LOOKS EASY TO INSTALL, BUT YOU NEED TO MAKE ADJUSTMENTS TO THE SCREEN ONCE IT IS INSTALLED. THE PART IS $3OO. TRY TO FIND SOMEONE TO INSTALL IT FOR $150 OR LESS. HERE IS A WEBSITE TO HELP YOU MAKE ADJUSTMENT IN THE FUTURE ON YOU OWN.

PRIDAH


http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

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Probable bad blue CRT and if blue goes bad guess what might
happen to the red and green.........T.

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SONY KP-57HW40


you are experiencing one or more of three things
1.the crt itself is damaged
2. the vertical ic on blue crt board is bad
3. the focus block is bad
if you hire a sony authorized technician they should be well aware of this problem.

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Sep 08, 2007 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Green flashes


It is a defective green CRT and most likely the red and blue will need to be replaced as well. This was a known issues with this year of Sony projection TV's.

Apr 07, 2007 | Sony KP-57HW40 57" Rear Projection...

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