Question about Samsung LE40R72BDX 40 in. HD-Ready LCD Television

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I have an le40a456c20...i get two vertical lines to the left of the screen when i switch the tv on...about 10cm apart. the one to the right gradually fades, the one to the left remains and causes colour distortion to its left to the edge of the screen...can you help.

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Either a bad controller board or bad panel,if lines are not intermittent bad lcd panel

Posted on May 05, 2010

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Lines vertical


These lines are called vertical retrace lines, and caused by the video output section; or improperly set screen voltage. All of these type of lines will be a little slanting type, across the screen all over, with an approximate one inch apart to each other. If you wish to get more details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window.

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I have a vizio p42hd TV. It has thin red vertical lines evenly spaced about 3/4" apart throughout the viewing area.


Hi,

IF YOU HAVE A SOLID BLACK LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........

ANOTHER WAY TO GET THIS FAULT IS WORN OR DAMAGED RIBBON/PLASTIC GOING FROM THE SCREEN MATRIX TO THE INVERTER

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My 12 year old Sony Trinitron KV-32XBR200 still works pretty well except that it cuts off about 25 - 30 scan lines at the bottom of the screen when cold, then gradually improves somewhat to missing only 15...


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Hello,

IF YOU HAVE A SOLID BLACK LINE RUNNING VERTICALLY THEN YOU HAVE A FAULTY MATRIX INVERTER. IF CENTRAL THE MAIN VERTICAL INVERTER NEEDS CHANGED. LEFT = LEFT VERTICAL INVERTER RIGHT=RIGHT.........

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1st -- need to exchange T-con Board.
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