Question about Sony KP-57WS500 57" Rear Projection Television

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Sony kp-57HW40, screen flickers with blue tint, then shuts off

This problem has been occurring intermittently for about 6 months. Sometimes it goes away for weeks. And sometimes, I can't get my TV to stay on for more than 5 minutes. It can be very frustrating. The TV is about 8 years old, so I am assuming that some sort of repair is in order, what will this cost me? Or is there any other solutions? I lvie in Ontario Canada.

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The problem with you set is: focus block and(or) intermittent G1 short in a blue CRT(picture tube). To determine the tube failure, you must take front panel off, rectangular cover under it and gain access to CRTs. You will see 3 picture tubes with wiring and boards attached to them. on a bootom of the set there is a black plastic box with 2 rows of 3 potentiometers on it.one raw is for the focuses, the other one is for the screen controls. it will be written on the box with letters R.G.B. first: take a light isolated handle screwdriver and tap very slightly on the neck of the right tube. Do not brake the glass! That's the blue CRT. It might have a blue color sticker on it or blue socket. Tv must be on and running, while you perform the test.If your tapping on the neck makes blue flashing, your CRT is bad, if not, try to play with blue "screen" potentiometer by turning left and right, slightly. If that will cause the blue flashes and hard to adjust, replace the unit.
Good luck,
Alex's TV Service,
Philadelphia, PA, 215-806-5980.

Posted on Jan 21, 2010

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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!

Jul 12, 2010 | Sony KP-57HW40 57" Rear Projection...

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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My sony kp-57hw40 has some color issues most of the time the picture has a very blue tint to it. Occassionaly it has a very red tint to it and sometimes it looks ok. What might the problem be?


To correctly repair your tv all three CRT's (picture tubes) would need to be replaced as instructed by SONY service bulletins. Many years ago SONY wanted a better brighter picture and began making some CRT's differently and "better" . But they sadley did not do enough testing . After a few years they realised the mistake and they paid dearly for it. Unfortunatly enough time has passed that the $750.00 or more cost or repair can only come of the consumers pocket . They are good solid tv's when the CRT's get replaced with Panasonic picture tubes.
Sometimes screen control adjustments can done to make the TV work for now but usually a flicker in color remains and it most likely will get bad again .
Hope this explains it for you.

Oct 11, 2009 | Sony KP-57HW40 57" Rear Projection...

1 Answer

The screen is all bright blue


I have Model # KP-WS500. The screen turn blue.

May 02, 2009 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Sony KP 57HW40, blue flashes and sometimes shuts off


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!

Jan 11, 2009 | Sony KP-57HW40 57" Rear Projection...

1 Answer

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

KP-57HW40 problem


· http://esupport.sony.com/perl/news-item.pl?news_id=24
· Which models are affected with the "flicker" problem?
A1: There are 12 models in total: KDP57XBR2, KDP65XBR2, KP46WT500, KP51HW40, KP51WS500, KP57HW40, KP57WS500, KP57WV600, KP57WV700, KP65WS500, KP65WV600 and KP65WV700.

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

1 Answer

Overheating problem??????


· http://esupport.sony.com/perl/news-item.pl?news_id=24
· Which models are affected with the "flicker" problem?
A1: There are 12 models in total: KDP57XBR2, KDP65XBR2, KP46WT500, KP51HW40, KP51WS500, KP57HW40, KP57WS500, KP57WV600, KP57WV700, KP65WS500, KP65WV600 and KP65WV700.

Jan 08, 2008 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Blue tint screen in video mode


· http://esupport.sony.com/perl/news-item.pl?news_id=24
· Which models are affected with the "flicker" problem?
A1: There are 12 models in total: KDP57XBR2, KDP65XBR2, KP46WT500, KP51HW40, KP51WS500, KP57HW40, KP57WS500, KP57WV600, KP57WV700, KP65WS500, KP65WV600 and KP65WV700.

Jan 05, 2008 | Sony KP-57HW40 57" Rear Projection...

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