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Why does my backlights come and fade out to dark on my Vizio E320-B2.

Why does my backlights come and fade out to dark on my Vizio E320-B2.

I connect my tv to power and the led strips come on (dim) ,then they slowly fade away to darkness,I replaced the power supply and seems I have 9v at standby pin and hardly any voltage going to the backlight,I’m grounding the multimeter to the case,any help would be greatly appreciated…. Thanks

ANSWERS:

"@bull40dawg

it’ll help us if you tell us what voltage you get on the LED connector. It is the mainboard that tells the power board to enable the backlight. Post some good pictures of all of your boards with your question. That way we can see what you see. Adding images to an existing question"

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