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

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Screen goes green

I havce a Sony KP-51HW40. The screen goes green, then shuts off

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6ya6ya
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Posted on Jan 02, 2017

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techman
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SOURCE: Picture Quality

without seeing a picture I can guess that you may have a shorted green crt or the drive going to it has changed and you may need to turn down the g2 control for the green. If the tube is shorted or bad see what type of warrantee you have on the crts as some sets have two to 5 years. Good Luck

Posted on Apr 22, 2006

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SOURCE: Sony KP-51HW40 51 Screen Protector

this tv has three parts to screen , the most outer part is called CONTRAST screen part # 408195411 for the model you gave.This is available @ sony.com (parts&access) Please make sure this what you need and model is correct..Good luck

Posted on Nov 29, 2007

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SOURCE: KP-51HW40 Sony 51" Fades to blue screen

The service manual on page 8 shows how to adjust the Red/Blue/Green screen voltages. To get to the adjustment board, take the front speaker grill off (two screws at the bottom left and right) and set it aside. No need to disconnect any wires. Then remove the plywood board with 4 screws that exposes the screen/focus adjustments. The top 3 adjustments are for focus, and you need not mess with these. The bottom 3 adjustments are for Red/Blue/Green screen voltage rough adjustments. My screen showed red lines, so I had to turn the bottom right adjustment with a philips head screwdriver just slightly until the red gun retrace lines where no longer visible.

Posted on Sep 06, 2008

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SOURCE: 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!

Posted on Feb 23, 2009

  • 1 Answer

SOURCE: Sony tv rear video projector KP 51hw40 green screen, turns off

it cost $500 to fix then my red went

Posted on May 11, 2009

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Hi There... I have a sony kp-51hw40 and when I turn it on a green screen appears, then turns off and the standby indicator light begins to blink in sequence of 6 times each. can you help please or make...


The 6 blinks is happening be cause the set has lost high voltage and shut down due to the green CRT needing replacement. You should be able to get a replacement Green CRT from www.tvrepairworld.com

Jun 25, 2011 | Sony KP-51HW40 51" Rear Projection...

1 Answer

My Sony Projection TV Model # KP-51HW40 currently has a GREEN screen, no picture, and only sound coming from the TV. HELP what is the part that needs to be replaced


Sounds like the Green CRT drive board is needing replacement. The Green CRT could also be bad but usually the set will shut down if its the CRT, so I would try the Green CRT drive you can get one from www.tvrepairworld.com

Jun 09, 2011 | 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...

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...

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

Power


Sounds to me like its your green tube. Kind of expensive replacement, but easy.

Jul 24, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Reducing voltage for Sony KP-51HW40


G2 = screen...On the screen controls behind the front grill, behind the hardboard. 6 pots, 2 rows of 3 pots. 3 for focus and 3 for screens. 1 for each of the the red, green and blue guns/crts.
To adjust: Run set, change to black screen with tv/video button. Dial each screen clockwise untill you see a color. Then counterclockwise slowly untill that color goes black, then stop. Do this for all 3 screen controls.
If you need to adjust the focus then bring up lettering. I use the QVC channel for this. Focus is done by eye.

Mar 19, 2008 | Sony KP-51HW40 51" Rear Projection...

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