Samsung ps50q91h clicking noise, no image/sound

[Neverzinho]

Hello

I have a Samsung ps50q91h 50" Plasma from 2007, it just does a clicking sound, trying to boot up.
I've already replaced the capacitors, one was leaking but not buldged and the others were a little bit buldged.

Still the same problem, please see this video with this problem, the noise it seems to come from those 2 blue components or the black ones.

https://www.youtube.com/watch?v=3hqK1dPcug0

Any ideias?

[tw2005]

Re: Samsung ps50q91h clicking noise, no image/sound

These have some common faults. Endless clicking could be bad or cracked solder joints on the heatsinked transistors etc or they have blown already due to this and psu will need rebuild. If you search the board part number in badcaps good chance you will get some good posts to read.

It will be bn44-........ on the white sticker

Other issue these have is theymain and uppet buffer blows

I have one that blew the ymain buffer and psu in one hit or maybe the psu blew aftr repeated attempts with bad ymain.