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LG 55 in. Replaced backlights. Why is there a black screen with one white strip (about 2-3 inches) near the left side of the screen?

Replaced backlights because the screen had a blue tint.

Posted by Brandon Musso on

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Larry

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I hate to give you bad news but your damaged the panel when you had it out and now the TV is junk, a blue screen is generally caused by a bad main or tcon board but it's to late for that if the screen is damaged

Posted on Jul 31, 2021

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The Knight

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That is not the fault with backlight. Contact any service technician. If you wish to get some details; check the sites linked here.
https://elektrotricks.blogspot.com/
https://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault . Search the site by type in the Brand Name of your set, in its search bar at the right side column, and press enter. See it in Webview with mobile or by desktop. Mobile View has no search box. Screen-shots to defective LCD 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 31, 2021

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