Question about Vizio L37 Television

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Vizio p42 very dark screen backlight off

I cant see the backlight shining through the slots in the back, picture is faint and blurry after black liquid goes away.

How do i turn on, or fix backlight on plasma tv?

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  • Anonymous Mar 29, 2014

    No backlight seen thru the back of the TV.Can I buy a replacement part for the backlight ?

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  • 56 Answers

There is no back light in plasma TV, Base on the description, the Z Sustainer board is bad. Replace the board will fix the problem.

Posted on Feb 17, 2009

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Do you have sound? If so, dim the lights in the room and shine a bright flashlight on the screen and see if you have a faint picture. If you have a faint picture, you have a backlight problem. On most of those sets, the backlight inverter is combined with the power supply so that power supply/inverter board will more than likely be the culprit!

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Dim the lights in the room, turn on the set. Shine a bright flashlight on the screen, do you see a faint picture?

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if the picture is REALLY dark, like you can just barely see it in a lit room, then the backlight might not be lit. LCD TVshave backlight that shines through the LCD screen which allows you to see the picture.

If it's not the backlight then it would be the brightness/contrast settings that need to be adjusted. If the picture used to be normal and all of a sudden went dark, verify the backlight. Normally you can look through the slots on the top of the set and determine if the backlight is on. If you can see a bright light through any of the slots, the backlight is probably OK... go after the brightness/contrast settings.

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