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HDMI inputs stopped working. How can they be fixed?

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Fault at its main digital 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://electro-medical.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 17, 2016

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HDMI inputs stopped working


I had the same problem with the HDMI connected to my HD cable box DVR. We called the cable company and he changed the box and the problem remained. He said there was something wrong with my TV.  The component (5-wire) jacks on input 5 work fine.  A few months later i got the 'green tint" problem and the tech came out to replace the whole optical box.  I asked about the HDMI problem and he said that the Sony protocol for HDMI is the problem. It will "talk" to some hardware and not others. He has not found a fix, except to use the other A/V inputs and abandon the HDMI (#7) input.

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