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Samsung TV UN50H6201AFXZA has audio and backlights, but no image on the screen. Replaced tcon board, but still no image.

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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Posted on Dec 03, 2016

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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

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does your model have separate board for backlight ? or is it integrated with TCON ?

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Could be the back lights themselves or the Tcon control board it could even be a faulty LCD , one test for lcd is to shine a powerful light onto corner of screen see if you see any image or raster on the screen . if you get an image most likely back lights need replacing quite a difficult job for the inexperienced . if not most likely t con board .

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Just so you know, the Tcon board which feeds the panel is way cheaper than a panel, sometimes samsung is out of stock and wants to sell you the panel (over $600) with the Tcon on it. you have either a bad signal board or bad Tcon board, my money is on the Tcon, be very careful with the ribbon cables to the Tcon when installing.
GD LK
E

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