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How do i fix LG 52SZ8R-TB keeps turning off. i turn it on and a minute later it turns off

The power light is on ad the light next to it is on when tv is turned on but after a minute tv turns off

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Fault in the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Posted on Apr 18, 2015

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Capasator prob????

Posted on Apr 18, 2015

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Posted on Jan 02, 2017

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This problems it is the causes by the tv power supply board.That the board,where the power a/c cord plug into it.Try website like Ebay.com to buy a whole refurbish power supply board for the replacement.

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YOU CAN REVIEW THE MANUAL FROM THE FOLLOWING LINK.
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These instructions are taken from page 44 of the User Guide.

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