Question about Panasonic CT-27SX12 27" TV

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Rings of Color

I turned on my tv tonight to find the color is distorted into rings. The center is a solid green and takes up most of the screen surrounded by a blue and red ring. Is this fixable (at a reasonable price) or do I junk the tv?

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Re: Rings of Color

You will need a degausser. Check out Wikipedia for the definition. Look on ebay or your local TV repair shop. Cost should be $20-$100.

Posted on Dec 13, 2007

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Rings on outside edge of screen and color of entire screen is green,blue and purple

Your TVs Degausing coil is not working. Degausing coil is one, which fitted around the picture tube internally, to demagnatize it at each time you switch on the tv. if you are using your TV without switching it off by its mains switch, and turn it to an other direction, this effect will occcur. You just switch off the TV by its main switch, and leave it for about 1/2 an hour, and then switch it on, and see whether it helps or not.
If not, the degausing posistor inside fitted on the circuit board of the TV, has to be replaced. It can be located on the power supply input section of your TVs circuit board. Ok.

Nov 23, 2010 | Haier HTF24R21 24" TV

1 Answer

Picture color is distorted.

Try turning off power and let set cool completely. Then turn back on. Letting it cool complety re-arms the autmatic degaussing circuit. It may take several cycles to completly clear it up.

Jul 25, 2009 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

1 Answer

Color regristration

The rings on the neck of the picture tube may have moved. this is a convergence problem and you need either a color bar generator or a very stable text screen to adjust the rings. by rotating them back and forth you will see the color outlines move. try to line all of them up until they are all on the text or image.

Apr 20, 2008 | Sony KV-27S42 27" TV

1 Answer

Sudden color/picture distortion

you have a shorted green CRT that is affecting the other crts the short is internat to the crt that leaves what is called retrace lines. if the set is more than three years old then replace all three guns.

Feb 25, 2008 | Samsung TX-R3080WH 30" TV

1 Answer

Colored Circles

sounds like the degausing coil isnt working or you have a speaker close by.

Dec 04, 2007 | Panasonic CT-36D32 36" TV

1 Answer

Color problem

Replace D805 (?) Thermistor for permanent fix, manually
degauss with coil is temporary........T.

Oct 29, 2007 | Panasonic CT-36SF37 36" TV

1 Answer

Panasonic Color Rings

It sounds like you have a warped shadow mask in your picture tube if your set uses a picture tube. A shadow mask is like a screen wire that lets the three color guns shoot electrons to their respective phosphor dot on the screen to produce the three primary colors which are mixed properly to produce the scene that is being shown. In other words you have a bad picture tube. Stargazer

Aug 12, 2007 | Panasonic CT-27SF37 27" TV

1 Answer

Color rings on hdtv

Sounds like a CRT (picture tube) that did suffer a bit of a blow to it. The rings are caused by the thin sheet of steel inside of the CRT called a shadow mask being warped. The other cause for this is the internal degauser in the TV comming on and staying on too long causing damage to the CRT. Either way the CRT is over $400 plus you will need to find out what caused the issue and repair that first.

Apr 17, 2007 | Samsung TXP3275H 32" TV

1 Answer

RCA MM36100 color problem

sounds like you have a deguassing problem with your TV .. have the repair person bring out a deguassing coil and see if thsat helps.. This will only be a temp repair as you will have to have the problem that caused this to be fixed. good Luck

Aug 12, 2006 | RCA MM36100 36" TV

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