Help with LG 47LH90-UB - AVS Forum
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Old 07-21-2013, 08:46 AM - Thread Starter
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Hello,

My wife and I were watching a movie when the video started to distort and then went blank. We still hear sound and the backlight works but no video from all inputs. No TV picture, no on-screen menus or indicators, nothing. Just the backlight and sound. The input selector appears to work and cycles through the different TV inputs and plays the appropriate audio from each input, but the picture never appears and neither does any visual feedback on the screen.

Found numerous references to issues with capacitors but I inspected the power supply and all capacitors look good.

Thanks in advance,
Barry
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Old 07-22-2013, 07:21 PM - Thread Starter
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Hello, anyone out there? Looks to be an active forum yet no response to my thread yet. Gotta believe someone has had similar symptoms.

Please help.....
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Old 07-28-2013, 05:50 AM - Thread Starter
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Hey folks, still without a TV. Any chance I posted to the wrong forum. Would appreciate any guidance from a moderator on where to post. Has anyone replaced a main control board or a power supply board?

LifeIsGood
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Old 07-28-2013, 07:51 AM
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Maybe try posting in this thread:

http://www.avsforum.com/t/1150014/official-lg-xxlh90-240hz-led-owners-forum-no-price-talk

though the tv is 4 years old now...
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Old 07-29-2013, 06:40 PM - Thread Starter
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The thread is also very old and addresses a very long list of issues. On many forums, it would be very bad practice to post an unrelated issue to an existing thread. And yes, the model may be over 4 years old but we have had it just over 3 years and this is the point where things are likely to start failing and when a forum like this should come in handy for troubleshooting.

Still hoping someone will reply with information on testing and replacing components.

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