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Sony kdl46w5150 still dead set after power supply replaced

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Fault at its main digital board. No startup signal from it to the power 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. 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.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Posted on Dec 09, 2016

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Posted on Jan 02, 2017

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SD Tech
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SOURCE: Dead set

Do what should have been done first: follow the voltage in and out of the power board and measure at turn on---too many people guess and buy a board and try it--dart game.

Posted on May 14, 2012

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