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My tv will turn on manually, but only shows a blank screen, then cuts off automatically,. what do i do.

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Fault to its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. 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/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Posted on Apr 21, 2015

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Posted on Jan 02, 2017

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budmrtn
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SOURCE: the screen went blank and the tv will cut on but

Look to see if you do have 16~24 vdc feeding the backlight inverter board, check the power supply section for caps with leaking/bulging tops. So it can be the power supply or he backlight inverter board.
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Posted on Jun 14, 2010

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