Samsung UE55F8000SZ Turns on and off immediately

[Egidio85]

good morning, I have a samsung UE55F8000SZ tv that turns on, shows the logo and turns off after 1-2 seconds.
This defect happens continuously, hearing the classic click of the relay every time.

Power supply board BN44-00636B

disconnecting the mains and lamps from the power board always causes the same problem.
Is it normal that without anything connected this power supply turns on and off cyclically?
any suggestions on what to check?

thanks in advance

[lotas]

A common problem with these power supplies is a faulty led driver SLC1013M.

[Davi.p]

Yes, if you wish and have time, try to completely resolder it / them (new tin)..

[Egidio85]

thanks, I'll try to change the integrated circuit and let you know

[Davi.p]

I mean NOT CHANGING THE CHIP!

[Egidio85]

I tried to redo all the soldering but nothing. In the end I solved it by changing IC SLC1013M and SLC2013M. Thanks to everyone for the help

[lotas]

I tried to redo all the soldering but nothing. In the end I solved it by changing IC SLC1013M and SLC2013M. Thanks to everyone for the help

Ok! As I suggested, but someone didn't believe me...

[Davi.p]

the thing that it worked for seconds sounded me strange, i'm not here to bother someone but to help and learn.. i have clues that let me thinked of a faulty soldering, stop..

[nomoresonys]

the thing that it worked for seconds sounded me strange, i'm not here to bother someone but to help and learn.. i have clues that let me thinked of a faulty soldering, stop..

My opinion is this is wrong.