SONY XBR-55HX950 Just shows a blank screen

I have a Sony XBR-55hx950 TV that I have acquired non working thinking it would be an easy fix. The LED back light lights up but no picture is shown. Sound comes through the speakers and everything else seems like a functioning tv but no picture. I bought “new“ boards thinking that that might be my issue but to no avail (although I almost wonder if one of the “new” boards were bad).

Any help with my issue would be greatly appreciated.

Thanks!

Update:

Attached is a photo of the back of the tv showing the boards for your reference

Block Image

. Thank You

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