Question about Samsung LN-S4692D 46 in. LCD HDTV

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Has sound no picture back lights are working - Samsung LN-S4692D 46 in. LCD HDTV

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  • Samsung Master
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You either have a main board or t-con problem. What color is the screen? blue? white?

Posted on Nov 17, 2013

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How do you fix a vizeo tv with sound and no picture?


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

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1 Answer

Sound but why no picture?


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
Some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

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try changing the back light inverter that's what light the screen some sets have separate back light inverter while some comes in he power supply...good luck

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1 Answer

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Check whether the back light is working or not. The problem sounds to be a back light related. If CCFL lamps have defect or back light inverter board is faulty, this kind of problem can occur. But if this is the problem, there sill be sound output from the TV. Only picture will be out.

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U put the cover back on,u might of acidently hit the reset protection switch to the lamp module.Check it over,becarefull after the switch back to it proper place.The lamp will light up and work.

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1 Answer

I have no picture. Sound & Signal are working


Hi,
It seems back light inverter board is not producing voltages to lit the back light inside lcd panel to show the picture on lcd screen.
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1 Answer

The picture blinks three times and then blanks out but the sound remains


This sounds like your monitor back light is not working. If you look really hard at the screen, can you see a very dim picture? If so the back light isn't working. This is almost always an inverter problem and can be fixed.

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WD-52631 Red Light-No Picture, still have Sound


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TV Picture Goes Black


I had the same exact problem.
I removed the bulb and cleaned it. There is a small screen at the top of the bulb and it was covered with dust. Once it was cleaned I replaced the bulb and it solved the problem.
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