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How to fix/ trouble shoot a 2015ish LG LED 47" TV that plays sound but keeps losing the picture.

My sister gave me her old (2015ish) LG LED 47" TV because it played sound but had no picture now I'm trying to fix it. I turned it on a few days ago and it worked fine but then the screen when out but the sound of my show kept plying. Turned it off of a bit then it turned back on and the cycle continued. I'm not sure if its the LED strip going bad or what part to replace any help or suggestions would be great!

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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on May 11, 2017

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Posted on Jan 02, 2017

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