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Hi, my tv screen just went off. When i switch it on it shows a picture then becomes black on screen, please advise

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Your backlight controller board is faulty and requires repair. It may be due to bad capacitors or a faulty inverter transformer. Capacitors are fairly easy to replace, the inverter transformer is harder to replace and it is often easier to replace the whole controller board. This type of repair should only be carried out by an experienced electronics engineer.

Posted on Mar 15, 2011

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It is pretty much junk, sorry to say it but your picture tube went out and it is cheaper to buy a new t.v. My grandpa use to fix them for us for free but he passed:( If you call some where see how much they would charge for a picture tube, I bet it's expensive???

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I disagree with info provided, if screen of your LG lcd tv becomes green that means inverter board is working and lcd tv does not have convergence ICs.
Please unplug tv from ac wall socket for minute to get it reset, replug back in and turn it On and check its picture.
If still showing green screen then change input source with remote, if tv shows same green screen on all inputs that means its either lcd panel problem or digital signal processor got bad loacted on main board. Local tv repairman is needed to confirm and fix it.
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Hi Bob. The first Board to cause this problen is the Main bd. The next bd to cause this is the T-Con bd which is mounted on the Panel. Since you saw horizontal lines and that you have text on the screen and are missing audio from the tv means that the Main bd has gone bad. Have a trained Samsung tech service your tv. Call 1-8020-Samsung as they can direct you to a Qualified tech in your area.

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Before you do anything else, make sure you do a hard reset. Unplug your television for an hour or two and then plug it back in. If you are still seeing the blinking lights and no picture or sound then we know of several possible prolbems that it might be. All of which require a local repair service to open the tv and replace a part.

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