I replaced my driver board a few weeks ago. It appears to have failed ( well on its way to total failure, but still sort of working ) becuase of heat damage. Board was litterally lightly toasted, darkened all over. Original part did not have a heatsink accross the center of the board. New one does.
Along with the new part was a copy of a service bulletin from Samsung advising techs to use the old heatsink on the new replacement board, as if the new parts did not include them. Other way around for me. This service bulletin seems unrelated, but I just thought I would mention it. TV was new.. not implying it was serviced before I got it and someone forgot to install the heatsink.
I wanted to let everyone know to maybe take a look and see if there is a heatsink on the middle of the LED driver card, it might prevent a premature failure of the card. And since they are very hard to come by worth keeping them going as long as they can. I am pretty sure this failure caused me to loose 2 blue LEDs and almost a 3rd. (Instant burning smell with blue LED installed on old board )
Do you think there is a case to be made against Samsung for a faulty design/premature failure from omission of the heatsink?
-- Update --
I called Samsung service/support yesterday. I explained the issues I had with the driver board and LEDs failing. I mentioned the service bulletin. They state there was no recall. As soon as I mentioned the burning smell they seemed to perk up a bit. They put me through to the Executive Customer Relations Dept. I'm pretty sure that's a meaningless name provided to make customers feel special. lol. They opened a ticket with their quality control / defect team. I am expecting a call back from them today or Monday. I'll let you all know how it goes.