These boards have been removed from mostly new TVS with broken screens and should work if properly installed. VIZIO D55-F2 TV MAINBOARD 755.02J01.0006 /. Please verify that your board part number is the same as 755.02J01.0006 /. The part number is the first number left of the /, or the sole number listed. Most often written in title as (part number / board number).