Question about Symphonic ST420FF 20" TV

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Tv color messed up

Have an 4 or 5 year old tv. and the color is messed up, on a blue screen for video for instance the whole left side of the screen is green the center is fine and the right side is red, tv has been degaussed and no luck i think its an adjustment issue.

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  • jreycrx Jun 05, 2008

    any idea of how much it would cost?

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2 Answers

***.

Posted on Jun 26, 2008

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  • 206 Answers

There is the chance that the yoke has sliped and a purity adjustment is in order, since you would be dealing with voltages that could kill you if you don't know haw to do this the safest bet would be to take it to the shop

Posted on Jun 03, 2008

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Posted on Jan 02, 2017

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My Sony Bravia KDL 40WL 135 TV has been flashing strange colors for awhile; today screen is black with a thin blue line across the bottom. No sound. Any help appreciated.


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Blue color flowing from side and bottom into picture


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All color guns out of alignment


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Tv


Good day.

The problem with your unit is that when your tube was replaced, it was not degaussed or demagnitized. The purpose of such is to distribute the color evenly unto the entire television matrix.
You can try to demagnetized it by rotating a magnet around the surface( but not so near) of the picture tube while it is operating.

Also, please check for the degaussing coil around the rear portion of the tube was returned and also check for loose contacts.


chris

Mar 07, 2008 | Toshiba 36A61 36" TV

1 Answer

Color messed up


Most likely your visitor turned one of the controls located on the back of the TV. There are only two controls they are the right side of the set in the back. The top one is the focus and the bottom one is the SCREEN control. You can carefully rotate clockwise the screen control until the brightness is back to normal. If you go to high with it you will see faint diagonal lines going accross the picture.

May 02, 2007 | RCA F19207BC TV

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Limited blue


your tv has a fault in the matrix board the blue driver volt to the screen is missing or some dried up soldering at a pin should be seen by qualified , but sereen is ok , regards please don't forget to rate thx

Apr 28, 2007 | Toshiba TP43H60 43" Television

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