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Lg tv turn off and on by itself

The tv will turn it self off after being on for a few minutes, then the light blinks a number of times, never the same amount of time and turns back on. and this just keeps happening.

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There is a serv bulletin for certain LG model requiring the replacement of the wiring harness from the main to the power board.

Posted on May 13, 2014

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LG TV TURNED OFF BY ITSELF THEN RED LIGHT FLASH 4 TIMES


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Magazine" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. Do a search by type in the brand name of the device to the search box.

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