shown the red led when plugged in to power, but nothing on the screen.

shown the red led when plugged in to power, but nothing on the screen.

Mine wouldn't even come on, it shown the red led when plugged in to power, but no sign of anything on the screen. I replaced main board, now it blinks a few times and you can see that the led it lit but no picture or info when I press menu/input ect. What should I try now?

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