UE55KS8005T What is wrong?

[mm901]

Hello!

My TV broke down and im tryingt to find out what happend to it. I have a Samsung MU55KS8000T and had it for 3,5 year. I havent moved it around at all but one day it just stoped working. The red light is on but when i start the tv it just start up for like 0,5 seconds (the screen light up in grey but no logo is show). It will then power off and repete this process for several times. If the power cable has been out for longer time the start up sound will go on ( a little beep) but only the first time. The red light is on all the time.

I have tried the basic troubleshooting stuff find online, like remove the power cable, tried another power cable, do a reset (hold power button down) etc. The power board and the motherboard has no visual defects.

What is going on with my Tv? it driving me crazy.

Thanks guys!

[AndrewL]

@mm901: I'm sorry to hear that you're experiencing this issue with your TV. If the standby light is constantly lit, please try pressing and holding the Power button on the TV itself, located below the Samsung logo at the bottom of the TV bezel. Press it, and you should feel a slight click. Allow 15 seconds for the TV to power on, then check to see if anything appears on screen. If not, please try pressing the Source button on the remote when the TV powers on briefly to see if the issue persists on another source. If your power cable is removable, and you have access to a spare, please try this to ensure that the problem isn't stemming from the power source itself. 

[mm901]

Thanks for answer Andrew! 

Unfortunately  i have tried all of that without any sucess.