Samsung PN51D550C1FXZA 5 clicks and then blinking power light

[thanatos65]

Hello All,
Trying to fix a TV for my brother.

I searched the forums and this sounds like a common symptom, but with multiple reasons for this behavior
I followed a video from shopjimmy that led me to disconnect all the boards from the power supply and then reconnect them one at a time until the problem (clicking relay) reappears. Through this process I was able to narrow the problem down to the X board.
This is where I start to have problems. I can't seem to get a handle on the part number for this board to try and order another one. I am also handy with a multimeter and soldering iron, so if someone can walk me through component testing I am willing to just repair this board.
I am attaching pictures of the board in question.
One more thing, the board has been removed from the TV, and they are about an hours drive apart

Thanks in advance for any help

[martino]

Re: Samsung PN51D550C1FXZA 5 clicks and then blinking power light

Samsung BN96-16523A (LJ92-01763A) X-Main

[ReeceyBurger123]

Re: Samsung PN51D550C1FXZA 5 clicks and then blinking power light

Its not hard to do some research on this board, takes 5 seconds and can answer your question. Link to thread:

https://www.badcaps.net/forum/showth...apleaker+xmain

[thanatos65]

Re: Samsung PN51D550C1FXZA 5 clicks and then blinking power light

Its not hard to do some research on this board, takes 5 seconds and can answer your question. Link to thread:

https://www.badcaps.net/forum/showth...apleaker+xmain

Thank you for the link.
The problem that I was having is that nowhere on that board is the part number BN96-16523A, yet that is what I see most people selling on ebay. To make things more complicated some of the boards on ebay have only 3 caps on that upper right side, and are missing one of the transistors so I wanted to make sure before I tried ordering a replacement.
Why is that part number not on the PCB?

Based on the link you sent I will probably just buy a rebuild kit from shopjimmy of all the transistors and drivers and repair it. I will go through the rest of the post and see if there are some specific ways to check the components and then when done repairing check for proper functioning.

Thanks

[thanatos65]

Re: Samsung PN51D550C1FXZA 5 clicks and then blinking power light

Samsung BN96-16523A (LJ92-01763A) X-Main

Thank you, I kept seeing that part number on ebay and shopjimmy, but nowhere on the PCB. Why is that the part number, is it a newer replacement?