Samsung UN65F7050AFXZA power cycling

I know this has been discussed before in an older thread, but it seemed to be older model tvs. My UN65F7050 has been power cycling frequently for the past couple of weeks. Samsung has sent out a service tech, he replaced the mentioned cable, as well as the control board. No change in symptons. Should he be looking at the power supply board for symptoms like this? Any help would be appreciated, its getting old waiting between service visits without a tv. This will be his third trip out....

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Firmware ?

I'm not an expert or a TV technician, but the more I read of such problems the more I'm getting convinced that Samsung have no control of the firmware updates that they are injecting in our TVs without or knowledge. If you research more you will find that you're not the first who had to go through multiple visits by a Samsung service tech. Some consumers had this problem with TVs that they have just bought and taken out of the box.
If you have the time, go through the link below. Good luck.

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Thanks for the reply. Yeah, I was hoping the firmware would take care of it, but no such luck. I have had the main board and cable replaced, and I am now waiting for a phone call to set up the next appointment. I did a factory reset two days ago, and it worked great for 24 hours. Then started cycling again while watching a bluray. Hockey playoffs are upon us, I would LOVE to have my big tv to watch on. Hopefully the next visit will be the last...

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