@ userwbFZ6M9UhI I would be happy to investigate further. Can you please send a Private message here: https://bit.ly/2mQxylV with the correct serial number as the one that was provided is not coming up as valid in our system.
Mark from Samsung helped me. All we did was to disconnect from the extension cord and plug in the Samsung tv directly to the wall plug. So it worked..
Tv with extention cord turns on and off since it receives low voltage.
My 49" Class KS8000 4K SUHD TV (UN49KS8000FXZA) started turning off and on in a loop about a year ago JUST after warranty expired. Chalked it up to a crappy TV and replaced it with an LG OLED. It's been sitting ever since but I'd like to fix it now seeing all of the complaints. I removed the back panel and checked the power and main board and they look normal. All ribbon cables are seated well. I've already tried all of the low-level troubleshooting as you can imagine.
Serial # is 05KC3CYHB02667E
What is wrong with this TV? How do I repair it? Do I need a new main board? A new entire panel? What are the troubleshooting steps. Samsung, help out your current (and former) customers please!
Having cycling issue With 9000 series (UN65F9000AFXZA) which has turned it into a $5500 paperweight... originally noticed it sometimes I'd used Netflix app & it would usually require unplugging for 2 minutes, but now it hasn't stop cycling for 48hrs, what is the fix?
Also, will only stay on 12-14 seconds so don't have the option to check for software version or updates or go to menu & turn off Anynet or check or change anything for that matter
Did you ever figure it out. I did the same thing. Just need to know what part to replace. It's so annoying that so many people are having the same issue and Samsung isn't even helping us out.
Same problem here. Out of warranty, but I still submitted a service ticket. Given the number of people with the exact same problem, this should be covered by Samsung, IMO.
UN65KS8000FXZA bought November 2016.