7 blinks error Panasonic plasma TV

7 blinks error Panasonic plasma TV I have Panasonic plasma TV 42PZ800, it blinks 7 times. Searching around I got the tip that Y-SUS and buffer boards could be defect. A lot of people recommend replacing all of those 3 boards. I ordered new boards and replaced them but it didn't solve the problem. ANSWERS:
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