That it's not a TV repair forum. Such details will like get you a reply to arrange for service or to call "parts."
But there is some hope. Did you inspect that board for bad caps?
I own a Samsung HPR4272X/XAA and I have audio but no video. I had the set diagnosed by a professional TV repair shop and they said the power supply (BN96-01801A) board was bad. I think he said I was getting +70V, but not +210V.
I am going to order a new power supply and have no problem removing the old board and installing the new one.
My question is after the board is installed are there any voltages that need to be tweaked or is it good to go? If voltages need to be tweaked, which ones?
Thanks in advance!!!!!!