Sears Parts Direct is showing the two chips as in stock. I do not have access to an EEPROM reader - been a while since I've done that, but that would clearly be the easiest.
something like this but the clip was really crappy and would suggest a new led with 3M or Pomona clip.
I saved a 1 blinker A-board using this with bad eeprom data, copied from a good spare Board and reflashed the bad one. That was fun.
Does series type 24 and 25 chips which you have to identify as the pin outs are different when setting that up.
Just wanted to close the loop on this. I sent in my A-board to PTS and they sent me back a refurbed A-board. Popped it in and the TV fired right up! I still have the A-board from the 55" and am waiting for the two ICs to arrive, but at this rate, I am thinking I may never get those ICs.
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