Question about Flat Panel Televisions
New TV MAT15LI618 - no picture even though it is plugged into an aerial from which current digital TV works. Picture sometimes comes up for a few seconds then fades
Anytime an LCD has a shade of pink, that means the CCFL lamps are about to go out. Now that you have a black screen, I'd say you just need some new bulbs.
Posted on Oct 04, 2008
Sorry, this has no easy fix. The good news is you do not need an LCD Panel. The bad news is the Video Processor has a problem.
This TV has x3 Boards. The one you should replace first is the one in the middle. If this doesn't fix it, try the one on the right. The Part #s are on the Boards if you wanna try ebay.
Posted on May 06, 2009
It sounds like it is loseing signal, check your connections, and make sure you have the correct cable
Posted on Jun 01, 2009
Maybe getting a solution to this problem doesn't matter to you any longer, but I purchased three of this same model at the same time and two of them have failed. One with picture and no sound; the other with sound and no picture. I'm just going to swap the components until I discover what the problem is. I'll post the results if I achieve success.
Posted on Apr 17, 2010
SOURCE: LG LCD HDTV 'NO SIGNAL'
To fix the problem, try turning off the TV and unplugging it from the outlet. Once unplugged, push the power button and hold it down for 1 minute. Then turn the TV back on and rescan for channels.
If the problem persists, contact LG customer service immediately as there is a problem with the memory card. The device is unable to retain scanned channels for immediate feedback.
All LG LCD automatically comes with a 1 year manufacturing warranty. You would have to provide proof of purchase to show when it was purchased. Hope this helps. The Guru
LG customer service: http://www.lg.com/us/support/index.jsp
Posted on May 12, 2010
The problem you are having is a common and easily repaired one. The problem is caused by a failing power supply board. If you can do a little soldering then you should be able to do the repair. Check out this article on repairing the power supply in this model.
If you don't want to do the repair yourself we do offer a repair service, you can use the link on that page to request service.
I hope this helps you, if so please rate our solution.
Posted on Jan 30, 2011
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Get some double-screened satellite cable and fit a female TV plug to it (or a male plug with an adapter). Connect it to RF Output 2 at the rear of your Digibox. Fit a TV plug to the other end and plug it into your TV.
Temporarily disconnect the aerial feed from the Digibox aerial socket. Switch the Digibox on to get a picture on your main TV. The Sky Digibox normally sends its signal out on UHF channel 68 so go to the second TV and tune it to 68 (or tune it till it finds the Sky picture).
Now plug the aerial cable back into the Digibox. If there is now interference on the Sky picture on the second TV (or on the terrestrial channels) your Sky signal on 68 is causing interference. Press [services] 401 [select]* and set the RF output to a different UHF channel number. You need to connect it via a Scart lead on your main TV in order to see the menu.
*In the new EPG (April 2009) it's [services] 001 [select]
Try each RF output channel number in turn (21 - 69) and retune the second TV until you get clean pictures on the terrestrial channels and the Sky channel. Also check the picture from the VCR (if connected).
This is just a brief overview. If you need a real in-depth explanation you should read the "Piping TV Around the House" Ebook by satcure.
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