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

4 Answers

Green flashes then tv turns off

My Sony, KP-51HW40, flashes green blips and then shuts down. The little red light on the front of the TV goes on and off eight times after the tv shuts down. IS there a part associated with this red flash code or is there something I can do to solve this? Same problem. I turn the TV on and it looks fine for 15-20 seconds. After 15-20 seconds the colors slightly shift toward red followed by a green flash or two. There no picture with hte green flashes, just green. After the flashes the TV turns itself off. The red LED flashes 8 times repeatedly - 8 flashes, pause, repeat forever. I tried the solution about turning the center adust screw counter-clockwise with no improvement. Something tells me it's time to get a new TV ...

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  • csyork Aug 23, 2008

    Here's a video

  • larrylwhalen Jan 07, 2009

    Yes i have the same problem and no help from sony someone suggested the d board #a1300417a is this correct my serial # is 9038392 thank you

  • souksanh926 Jan 10, 2009

    I have the same problem. I did adjust the 3 knobs for each color as the Tech support recommended, it worked for 3 days and it happened again with green light flashing and shut off. Not sure is the lamb issues.

  • soundtouch Feb 23, 2009

    I have the same problem after 20 seconds but it flashed red just like the video then pic shuts off and goes to standby mode

  • Tann Feb 23, 2009

    I have the same problem. I did an adjustment on the 3 knots, the TV can be stay on for an hour, then it dies. If I turn it on right away, then I see cyswok's problem. only stay on for 2 mintues.

    If I wait for 15 mintues, I can watch TV for another hour before it dies again.

    Is there a fix for that? How about the cost? If cost me more than $400, I want a new TV, making sure it is not another SONY.

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Blink codes are at this site. Also you can get the onscreen diagnosis by pushing set, number 5, volume -, then power.

Posted on Feb 25, 2013

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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.

Posted on Aug 23, 2008

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My sony TV KP-51HW40 stays on for less than 1 minute, the screen turns green and then shuts off.

Posted on Jan 05, 2009

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Hi I have a Sony KP-57hw40. It will work for few minutes and turns green and shutoff .It has some green lines from end to end.

Posted on Dec 06, 2009

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1 Answer

TV turns red,shuts off, stand-by light blinking 8Times


Eight blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.

Feb 27, 2014 | Sony KP-51HW40 51" Rear Projection...

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I have no picture and the power light flashes green and then red.


Hi,
I can help you to solve your Sony tv problem.
Is it Sony KP-51HW40 tv or any other model?
How many times red light start blinking after three seconds long pause?
Let me know to proceed, can you check voltages with multimeter in tv circuit board?
Thanks.

Nov 26, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

My KP-51HW40 clicks off after running for a period. The red power light blinks when it goes off but screen stays dark. When TV is shut off for a while it restarts and runs fine. The "On"...


Hi,
KP-51HW40 shuts off due to incorrect white balance and blue arch lines is an evidence of that incorrect white balance. I hope tv standby red light would flashing 5 times then 3 seconds pause and again 5 times when tv shuts down.
This is rear projection tv that has three picture tubes (red-green-blue) inside to generate picture that projected at front screen. These three picture tubes must be drive with correct drive voltage to produce good picture of each color.
Solution for your tv problem is Screen Voltage adjustment that can be done easily if you are handy with electronics stuff repair.
Let me know your expertise level to guide you more and if you feel unconformable by tv repair then local tv repairman will help you to adjust white balance in tv.
Hope these info will help you.
Let me know if you have additional questions.
Thanks.

Nov 05, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Turn tv on,picture good for 4 seconds,then green curved line like a rainbow all green,then 4 green sequence flashes,picture goes out theN volume continues for 2 seconds then out front red power light then...


This is a set with bad picture tubes-not available except on rebuild basis.

Are you seeing bright green screen and then set shuts off?

Let me know so I can help--8 blinks is AKB error.

SD TECH

Sep 15, 2010 | Sony KP-51HW40 51" Rear Projection...

1 Answer

5 flashing light code,unplug CR board,now 8 flashing light code


If you put the "CR" board back on, the error code will once again be 5 blinks. Your problem is likely the TV's IK blanking circuit. The Kine driver ICs on the CRT sockets boards CR, CB, and CG need replacement along with a few components in the 200 volt supply to the circuit.

Feb 12, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Turns red then shuts off


the red CRT is shorted . You should be able to get a replacement CRT at the following link.
http://servicemanuals.vstore.ca/

Sep 27, 2008 | Sony KP-51HW40 51" Rear Projection...

2 Answers

Green screen and shut down


TV screen flashes with Red lights for few times. sometime it shut down TV or red color is lost showing pictures without Red looks terrible. Any solution

Sep 17, 2008 | Sony KP-51HW40 51" Rear Projection...

9 Answers

Green flashes then tv turns off


OMG! My TV has been sitting in a closet for the last three years because I couldn't afford to have it fixed.  I have googled now and then trying to find a cure for its green affliction but never found the right advice until tonight. I can't thank J19666566666 enough!!  I just followed the instructions and presto!  Working TV again! And just in time for the Oscars (which is like the Super Bowl for me).  
The editor in me tweaked the instructions a little...
Its is real easy to fix. There are 2 screws holding the front speaker cover on near the bottom corners (there are plastic plugs covering the screws that need to come out first). Unscrew and remove the speaker cover (pull it out from the bottom a little then sort of down and out to get it loose but be careful because there are wires attached). Next remove the 4 screws holding the particle board panel in place. There will be a cluster of 6 adjustment nobs with a drop of white paint on each one (2 rows of 3 - do not touch the top row). The green is controlled by the bottom middle screw, Using a screwdriver turn it counter clockwise (to the left) ever so slightly (1-3mm) and there you have your TV back. Use the bottom right screw to adjust the red and bottom left screw for blue. 
Thanks again so much!

Jan 08, 2007 | Sony KP-51HW40 51" Rear Projection...

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