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Hi, I bought LG LCD TV 5-6 months ago and I have a problem with this TV now. When I switch it on is working fine for about 1 hour and screen get black. There is sound, but no picture. The model is LG 42F65.

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If your fan motors have alot of bullted up dust in them set will quit playing correctly . Also most of the LGs need resoldering on power supply boards.

Posted on Nov 01, 2008

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6ya6ya
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Posted on Jan 02, 2017

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My LG tv model 50LB6300 ( 50 inch ) had 3 months ago 1 bright spot on the screen. After 1 month there came 2 more. And today it is 5. These white spots become very bright at a white background.


If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

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I have the same problem and need help. Have this TV over 5 years and don't know what to do this it

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I had this same problem. Vizio sent someone out to replace the motherboard. It didn't fix the problem. Since it was under warranty, they replaced it with a newer model VU42L. Doesn't have this problem, but it has others.

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If you are using a set top box this might be caused by turnig the box on at the same tie as you turn the tv on or slightly after you turn the tv on.  If you are using compnent or HDMI inputs the set needs to see the signal as it is turned on to know what formt the signal is in. 

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