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I have an LG 32" 7 yr. old tv that had colored vertical lines and sound. Finally it turned to solid black.

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The Knight

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If you wish to get some details; check the site linked here. Pull up older posts. https://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
Screen-shots to defective LCD and Plasma panels are given. You can see and compare to that to your TVs', and can make sure about the fault to an extent...

Posted on Jul 01, 2020

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I have vertical colored lines and cant read menu on my l32w761 envision lcd It seems to be shutting its self off also and the light blinks an orange color in place of the usual green


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On all the plasma tvs there are control boards on the lower part of the screen that control the vertical images. If one of the chips on one of the boards fail, have a bad connection, or no ground it will result in a thick black line down the screen.

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1 Answer

TV Problem


No. Are the lines white or black? Does the picture look distorted at the top? Is there a chance it is still under warranty? It sounds like a problem in the vertical retrace circuit. Probably a capacitor near an IC that's used for timing. You shouldn't be having this issue already. A tech should be able to see a distorted waveform in the vertical section. Hope this helps.

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