Mine had 7 boards, and the symptoms indicated 2 possibly 3 different areas. I called the local LG service tech, he said, THIS BOARD, cost $300, board came in, he installed, and the problem was NOT fixed. Told him to replace original board, and not to charge me for replacement parts. He made an adjustment, partially 'fixing' the problem, then about 2 months later, it failed completely. I figured this was going to become a money pit. The LG plasma TVs have a bad rep for early failures.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
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