Samsung: Looking for a Part Number

Looking for a Part Number

I recently decided to check to see if my Samsung DLP tv (HLT5676SX/XAA) had a firmware update available. I checked on Samsung's web site, and it did. So, I went through the process to download it and extract the self-extracting zip executable onto a USB drive, as specified by the PDF file showing the procedure. I installed the update as specified, and BOOM. The TV is now a brick. If you power it off and back on, it makes the start up sound, I hear the wheel start to spin, I see the lamp showing that glow it does when the TV has no video signal on it (black screen, but light emitting from back). The TV won't turn on. No picture, no sound. No response to any of the buttons on the TV itself, and the only response from pressing remote buttons is seeing the light flicker showing that it's seeing the IR signal from the remote.

I've read where other people say that they too have had this happen and they have had to replace their "logic board". The TV is well passed its warranty and Id like to try to replace the board myself (famous last words: it's okay I'm an electrical engineer). Can anyone tell me which part number this is?