TV Red LED blinking 4 times. TV screen stays black and won't come on

[Members_sAxaLxx]

Hello. After a series of problematic turn-on the TV shows the red front LED blinking four times, one short, 2 mediums and one long flash. It is certainly a specific error code. Anybody can tell me what it means? I measured all the voltages in the PD board and it's alright, not even fluctuations...

Thanks for helping

[JAMES4578]

Hi @Members_sAxaLxx  check connections are secure  and no issue with surge protector if  using one, try another socket if available.  if this not the issue disconnect Tv and One Connect Box (if applicable) and try again. see some information here https://www.samsung.com/sg/support/tv-audio-video/what-to-do-if-your-samsung-tv-will-not-turn-on/#:~... 

However a flashing LED light would tend to indicate a fault and if still no solution should contact Samsung Support, link is not from uk site so would need to contact Samsung Support here   https://www.samsung.com/uk/support/contact/