Question about LG 37LG30 37 in. LCD HDTV

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Works for a few hours and then screen goes black. turn if off for a few hours works again

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Thats what happens to me but there is because theres an emerency alert thing so just stop watching tv there so it can stop maybe check its battery

Posted on Jul 16, 2009

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Posted on Jan 02, 2017

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TCL CRT TV slowly turns into black screen and than only sound comes but no image, just a black screen. After some hours than again the TV works fine but after sometime again the problem repeats!


CRT base card circuit fault. Contact any service technician to get it rectified. It will be somewhat difficult to a normal user to repair this fault. Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site.

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I would check the power board capacitors. Many people are losing the electrolytic caps on these boards. It is possible yours are failing only when they heat up.

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1 Answer

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1 Answer

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