Question about Sony KP-51HW40 51" Rear Projection Television

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KP-51HW-40 FLASES BLUE ,RED, GREEN

I TURN ON MY TV AND IT SOMETIMES FLASHES RED BUT ONCE IT DOES IT WOULDN'T STOP FOR A COUPLE OF HOURS IF I LET IT. IT WILL TURN OFF EVERY FEW FLASHES OR SO BUT THEN IT WILL TURN BLUE THEN GREEN ALL WHILE TURNING OFF WHAT DO I DO PLEASE POST BACK I WAS TOLD I NEEDED NEW BULBS

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  • Sony Master
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Your picture tubes are trying to short out you have 3 red, green ,blue.

Posted on May 19, 2008

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Posted on Jan 02, 2017

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1 Answer

Convergence will not lock in on a kp-51hw-40


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


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69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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69189a5.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Sep 20, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Sony kp-57ws500 flashes blue, green, red then turns off


Re-insering the flyback wire is usually very easy. Push in and give a slght turn and check to see if grabbed. It sounds as if there is more issues than flyback wire. TV should turn on without one crt connected

Dec 14, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Sony Projection Stand by indicator flashing red


Ur FBT,Fly Back Transformer high voltage is dead, the black block of plastic with a red wire with cap hook to a CRT(Tv Tube).

Sep 14, 2009 | Sony KP-46S25 TV

1 Answer

Standby light flashes twice


The power supply board may have been damaged. Try leaving the TV unplugged overnight so the Tv can discharge and reset itself. If this doesn't work, the power supply board may need to be looked into by a TV repair shop.
If you have some electronic experience and wish to try to fix it yourself, you can most times find a Service Manual for your TV over the internet for less than $20. It will have schematics, diagrams and parts list for your TV.

Aug 21, 2009 | Sony Bravia KDL-40V5100 40 in. LCD HDTV

1 Answer

I was getting nine flashes and know the green crt


Sounds like a bad green crt. These Sonys are bad about that.

Jul 06, 2009 | Sony KP-65WS500 65" Rear Projection...

4 Answers

Green flashes then tv turns off


or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.

Aug 23, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

KP-57HW40 w/5 red Blinks


That is basically an easy repair its on of the video uotputs on the green, red, or blue crt circuits thats bad or IC309 on the A board. I would recomend getting the service manual for your set to be able to pinpoint which Ic is actually at fault. I can post a link where you can get the manual and they will provide free step by step support to help you diagnose the problem and help locating replacement parts. Thats a free service they provide when you purchase the manual that they will email to you. If you want the manual let me know.

Mar 24, 2008 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Standby Red Light Flashing


six flashes corresponds to "Horizontal deflection stop". In turn the "supposed malfunction" is then either Q5013 (H OUT) is broken and/or IC507 (H Jungle) is broken.
however i would check
Video out, IC7101, 7201, 7301 and others in C board circuit.
Q510, 516, 524 (A board).

There are actually three C boards, the CR, CG and CB boards. They are attached to the rear of the red, green and blue CRTs, respectively. I wouldnt attempt to repair the set myself. I would solicite the services of an authorized Sony servicenter.

Dec 26, 2007 | Sony KP-53HS10 TV

1 Answer

Kp-51hw40 problem


your blue tube is shorted unplug blue crt board see if set comes on and stays on!

Nov 07, 2007 | Sony KP-51HW40 51" Rear Projection...

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