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

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Sony KP-57HW40 57 in. Green Circles

When I turn the TV off or on there is a large Green Ball in the middle of the screen. When the TV is running there are several large green circles on the screen that are very noticable when the picture is showing something dark like a night scene. I have taken the back off the TV and cleaned the CRT lenses and the Mirror and vaccumed all the PC boards which had some dust build up.. It is still there!!!!!!! I already had to have this set repaired about 3 months after I puchased it because everything was green when you were watching it. This thing has a great picture when its right but its not very reliable & it doesn't have have a very long life.

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Well just remember the in the electrical industry its not 100 percent all of the time. you might just want to buy a new one.

Posted on Apr 05, 2008

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Hi there,
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Posted on Jan 02, 2017

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Mitsubishi WD-62528... When I turn the tv on it has a massive green circle in the middle. How can I fix it?


If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD screen are similar, irrespective of its brand and screen size.

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I have a Panasonic pt-44Lcx65 tv and it has this blue snowflake or blue star looking stuff all over the screen area and now within the last 2 weeks or so it developed this yellow or green large circle area...


Is the tv new? On which input is set your tv? Change some cables they are connected to your tv (like the HDMI) and see if you can get a clear image.

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Screen blury,very pink,green edging on picture almost colorless!


This would be a convergence issue you can run the convergence setup that is in your user manual if that does not work you are going to need service.


thanks

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

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1 Answer

Television picture colour


This is because you have something emitting an electric magnetic pulse close to the TV. Like a large unshielded speaker or large Battery. First thing you need to do is move anything near the TV away and see if that correct the issue. Next would be to degauss the TV. Unfortunately the TV probably does not have a built in degausser.

A degausser is an electro magnet in a circle. you plug it in and run it around the surface of the TV.

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1 Answer

TV KOLIN 21"


hello.... do you have any speakers near your television? what color is the circle your talking about? Do the green,pink colors are scattered all over the screen and specially on the corners?
If you have or had speakers near your tv? then do this try to get a magnet.a magnet on a speaker would do.what you have to do is to place the magnet near the screen of the tv approx. above the green,pink color (turn it on first).you will notice the that the color will react with the magnet try to pull it on the side you will notice that the green,pink color is moving on the same direction do it until its gone.NOTE make sure youll not scratch the screen ok.email me what happened. [email protected] GOODLUCK

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1 Answer

42HDS69 42 in. Plasma has several thin green vertical lines in middle of screen


If the set is still in warranty, call for warranty service. If not and you feel comfortable working on the set, carefully open up the back and reseat all of hte cables and connectors. This can be caused by marginal connections inside the set.

Keep us posted on your progress and results.
Dan

Aug 29, 2008 | Hitachi 42HDS69 42 in. Plasma Television

1 Answer

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replace fuse looks like cap next to flyback transfomer FL231 it will be the one in the middle.there are 3 of them next to FBT.

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1 Answer

Green circle on the screen when I turn off TV


there is something really something wrong with your tv.try to reheat the main board.

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2 Answers

Green is not being displayed on my TV


If you have experience troubleshooting solid state TV sets, you should be able to tell by a couple of voltage measurements if its a problem with the picture tube or the drive circuit. Simply take the multimeter and compare the base voltage of the green drive to the red or blue drive transistor. If the voltage is about the same, measure the collector of all three. if the green voltage on the collector is higher then the others, then theres an open between the drive transistor and the crt element. this could be an open resistor, a bad solder connection on the crt socket, or an open picture tube element. If theres no voltage there then your going to have to trouble shoot the drive circuit.

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