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How can you determine if your TV issue is with the backlight LED's or the mainboard?

My mom has a Sanyo DP42D23 TV, it has sound and you can still see the picture with a flashlight. There is no light when looking into the back of the TV so the issue is related to the backlight. How do I determine if the issue is with the backlight LED's or the mainboard?

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If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/.

Posted on Mar 13, 2017

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Posted on Jan 02, 2017

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