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no image has backlight and sound

@oldturkey03 . im looking at a tv for my friend, it has backlight and sound but not image. i have found a diode thats reading in both directions .718 on way and .201 the other. so i know its bad. my question is on the diode it says 5819 top line and 0908 bottom. what would the value be. thanks

model eu40b6000vw

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diode is in the middle of the 1st photo

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@djdannyrock what make and model is the TV? Post some images of your board and the diode on the board with your question. Use this guide Adding images to an existing question that way we can see what you see.

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@djdannyrock reference designator DM802?

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yes it is dm802

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@djdannyrock most like a 1N5819 1.0A SCHOTTKY Barrier Rectifier.

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Update (01/02/2018)

Here is the schematic for the power board samsung_PSLF171B01A.pdf

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so 40v 1a is it

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@djdannyrock attached the schematic (location C3 on sheet 5) for the power board to my answer. It verifies that DM802 is a 1N5819 diode

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thanks, got some ordered

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@oldturkey03 i replaced the diode but im still getting a reading from both sides, any ideas what could be the cause

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@djdannyrock you've checked the power board with the attached schematic to make sure it is not showing other components that have failed?

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daniel estará eternamente agradecido.
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