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

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My sony kp-51hw40 has a green screen - Sony KP-51HW40 51" Rear Projection Television

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This link has the instructions on how to fix this problem and other similar problems. You have nothing to lose, so I recommend that you try it.

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

This works with the two other colors, blue and green also. Not all models of Sony Projection TVs have the red, green, and blue pots in the same order as the picture that is listed on this link, so you may want to google search for your model's service manual. The service manual can also help you be able to remove the cover for your particular model of TV. I was able to find the service manual for my model, and sure enough, the order of the pots are reversed on mine, so I would have been adjusting the wrong color. Read all of the comments on this link too, because you can find other helpful tips and may even find someone with the same model of TV as you.

I hope this helps you!
Fare well. :)
Iconoclast

Posted on Jul 27, 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...

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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...

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My Sony KP-51HW40 is flashing a green screen and then going back to the image, then it gets more frequent, and eventually cuts off, i'm guessing it's a heat issue... but where?


Your Green picture tube is arching / Failing. The only way to fix is to remove the tube and ship it to a company that rebuilds tubes, but this would not be cost effective.

Apr 19, 2011 | Sony KP-51HW40 51" Rear Projection...

3 Answers

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.

Aug 26, 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...

3 Answers

Sony kp-51hw40


Yes you have bad green and red crt but with an adjustment you can still use it. remove the front panel and you'll see the focus pack (it;s a black piece with 6 rotating knobs on it. Adjust clock otherwise the red and green screen (the bottom line knobs) till the lines has gone. The better way to check it is to adujt in video input with no signal, just black screen.

Nov 06, 2007 | Sony KP-51HW40 51" Rear Projection...

1 Answer

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

Apr 22, 2006 | Sony KP-51HW40 51" Rear Projection...

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