Question about Sony BRAVIA KLV-40U100M 40 in. HD-Ready LCD Television

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Lcd tv I think one of my children waved a magnet in front of the tv. Color is green yellow and blue. Any way to fix this

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Hello Galal:


It sounds like your Tv will need o be deguassed, that will need to be done by a repair shop, no may try to unplug the Tv from the electrical outlet for about 10 minutes the plug it back in that may help as well.


The Slash

Posted on Aug 17, 2008

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My tv has a yellow wave at the top and a blue one on the bottom the objects on the screan have yellow and blue shadows. i have tried the hd focus with no help.


Usually means a magnet had been to close to the TV. They will cause color lines. Either from someone (maybe a kid) potting a magnet against it or from having two electronics to close to each other

Jun 23, 2012 | Zenith R56W28 56" Rear Projection...

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I have a Sony KDP-57WS550 TV that has a convergence problem. Based on the symptoms, I'm not sure whether to indict the convergence ICs. In the convergence mode, I can move the red (and blue) crosses,...


With your TV in setup Use a small magnet to "move" the non converged Red, Blue, or, Green color lines "crosses" (each CRT will need to be adjusted in turn) by moving the magnet close to the offending Red, Blue or,Green color CRT yoke or, tube while observing the movement of the CRT color line "cross" in a mirror ( try several places near the tube and, several strengths of magnets:) a refrigerator sheet magnet works well (you can cut these with a scissors to make a better fit or, apply less magnetic "pull." by making them smaller (you may need more than one magnet per tube to fix each CRT's convergence) When you have each CRT tube's convergence right, apply some clear silicone adhesive to the magnet and, permanently affix the magnet to the now "fixed" CRT tube exactly where you placed the magnet to obtain the best convergence on the CRT.
(Do not adjust the "Green" CRT unless you must, as it is used as the color line to adjust other lines to)

Jun 30, 2011 | Sony Grand WEGA KDP-57WS550 57" Rear...

2 Answers

PT50LC14 Color problem with color too much yellow and green no white or blues can not correct is this the lamp again im on why does it seem that I end up replacing the lamp every year (on number 3 now)....


ok,,your problem is not on the lamp itself.,the problem is on your screen controller.the controller is connected on the plyback you can adjust the screen intensity of the red,green,blue cathode..on your screen adjustment.

May 17, 2010 | Panasonic PT-50LC14 50" Rear Projection...

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Problem with picture color


Magnetized The set is probably magnetized and needs degaussing (demagnetizing).
All CRT type TV's have an internal demagnetizing circuit that is engaged when the set is first turned on after being off for the day.
If this circuit is working then you sometimes hear a "bonk" sound (about 1/2 a second long when the set is first turned on. If this circuit isn't working the set will become magnetized over time and will have to be degaussed using a degauss coil available at a TV repair shop (cost aprox. $35.00) and you should have the circuit checked at the same time. A set will also become magnetized if a large speaker (magnet) or motor is close to the TV. Be sure to vote/rate me if this helped Thanks!

Oct 26, 2009 | RCA F27TF720 27" TV

2 Answers

Only yellow,blue & green colors, occas hint of red. What are correct settings? middle of gauge,


sounds like degausing circuits bad. unplug for couple of hours. if this doesnt work try waving a heavy magnet in front of tv about 2-3 inches from screen.

Jun 01, 2009 | Philips Magnavox MT1905B 19" TV

1 Answer

No blue color, green replaced blue, white is yellow/green


Hello,

If the set is hooked up using Component cables (red, green, blue), then check to make sure the cables are hooked up correctly, and not defective (change them out). If the color problem remains, then the problem may be in the Optics block of the television (which is not unheard of in this unit).

If the menu of the TV displays blotchy discoloration, and the discoloring is the same for every input on the tv (stationary), then it is the Optics, and the optics need to be changed. It is not the easiest job in the world, and the block itself is quite expensive, although the unit my be under an extended warranty from Sony. Contact them directly to see if you can get any help (cost or service-wise). Hope this helps...

Dec 29, 2008 | Sony KDF-E60A20 60 in. LCD HDTV

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Color fades when wathcing TV from greens to reds and also get dark.


Typical problems with lcds.. When they get hot, the color tends to shift. The reason your seeing the problem on the red and green is because of a lack of blue.. Makes sence if you think about it as blue is the hottest wave of light, so the blue panal is getting too hot or possibly the polarizing filter on the tv..

Lamps can cause this somtimes as they tend to shift twords the higher waves at the end of there life.. So if you have another lamp, try it out.

Another possible cause is the driver board for the lcds.. If there is a chip that has a small short, it will overheat as well and cause it not to function properly. I see this all the time on lcd projectors. 1 of 3 things.

Jul 26, 2008 | Sony KDF-E42A10 42 in. LCD Television

1 Answer

Re Degaussing


Now Degaussing and convergence are two different things, if you say its degaussing then you should have just a color differential in a certain area, meaning the color should not be arched, everything that passes through should pass throu only with the changing of color. Now if its a convergence the the color may lift upward in an arch, likely separated from the other colors, Red, Blue,or Green. So now which do you think you have? Deguassing usually give you a highish green color or yellow

Sep 11, 2007 | Panasonic PT-47WX52 47" Rear Projection...

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No blue screen


what you are describing is a degaussing problem. It normally occurs if some Magnetic source has been brought close to your TV. Perhaps you have shifted your TV from part of the room to another? Or to another room? Did you or someone place a magnetic source (Speakers, Tape recorder, Walkie talkie, some toy of your children, etc near or on top of the TV? Just remove it. And wait for a few days. The problem will get automatically cleared up, as the TV set's Auto Degaussing circuits will clear the color patches.

Aug 18, 2007 | Samsung TSL2795HF 27" TV

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