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

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Sonykp57hw40 the re d and green tubes stop working after a couple of minutes leaving a blue screen which goes out a few minutes later. how do i fix my TV

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  • Sony Master
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Sounds like the blue CRT is shorted and thats what is shutting down the set.

Posted on Jun 07, 2008

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Can dust build up on a picture tube's circuit board cause them to overheat and shut the tv down.


dust will not cause an issue like this in this type of set--RCA? it means a short of some type exists and the set shuts down or blanks the tubes--all you have described as far as appearance is normal.

RCA sets like this can be difficult to repair and also if you Google the model number you will see they have a lot of "problems".

Apr 23, 2012 | Televison & Video

1 Answer

The screen turns blue after about 2 minutes of turning on the TV


Sony TVs has an Optical Block issue. If there is an issue with the optical block, then there will be green, blue patches or tint on the TV display. Try resetting the TV to the factory settings and try Power resetting the TV. Turn Off the TV and remove the power plug from the wall outlet for 1 minute and reconnect it and check the operation. If the issue still persists, then TV may require service. You can contact the Customer relations team and check for the available options. Sony had repaired free of cost for such issues. Hence, contact the customer relations.

Jul 25, 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...

1 Answer

The blue light on my base unit is on but the headset does not app


Unplug the unit -- Then grab the ear peice, and slide off the battery, wipe off the metal prongs ...leave apart for a couple minutes, then put back together. Make sure you plug the unit back in. It will take a couple hours for the battery to charge. But this should solve your issue.

Aug 29, 2009 | GN Netcom GN 9350 Wireless Headset

2 Answers

Screen goes all blue


if it is a KP65ws500 it is one of a group of sets made by Sony where all the picture Tubes(set has a RED, Green, and Blue Tube.) ARE BAD. Most of these sets had all three tubes replaced during a program Sony had. The tubes are NO LONGER AVAILABLE---the only way to get one is remove the tube and send it out for rebuild---most of these cost about 250-300 just for the tube.

The set is shutting down because when the screen goes bright blue it detects one of the CRT's(tubes) is pulling way to much current.

The problem with Replacing your Blue Tube is cost and----sooner or later the other two(red and green) are going to fail also.

best advice is maybe not to fix it.

I replaced dozens of the tubes in these sets when Sony had a recall and provided the tubes for free and paid for the labor etc.

I know I am not giving you good news but I do this here for free and if this has been helpful give me a vote here. Thanks!

Aug 20, 2009 | Sony KP-65WS500 65" Rear Projection...

2 Answers

61'' SONY Rear Projection KP 61HS10 blinking


My Sony HiScan 61" intemittent black screen for couple of seconds. I opened the back and look at what is happening. All three blue, green and red projection lights go off for a second or two frequently.

Anyone know what is the fix.
thanks
James

Mar 25, 2009 | Sony KP-61HS10 61" Rear Projection...

1 Answer

Screen goes gren


you probably need to replace the red and blue tubes to make it work right again

Sep 04, 2008 | Sony KP-51WS500 51" Rear Projection...

1 Answer

BLUE SCREEN THEN SHUTS OFF


cause: tuner i believe will cause tv to not find channels turn blue and turn itself off

Aug 18, 2008 | Sony KP-51WS500 51" Rear Projection...

1 Answer

FADING TO BLUE SCREEN


Sounds like you have a problem with the blue gun in your picture tube or its drive circuit. You might remove the back cover and gently tap on the neck of the picture tube using a plastic screwdriver handle while watching the screen in a mirrow. If the picture flashes back on or on and off then the picture tube is the problem. If this is a projection tv you have three separate tubes : red, green & blue. you'd need to tap the blut one.Gently!!!! Stargazer

Feb 13, 2007 | Sony KP-53HS20 TV

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