These boards have been removed from mostly new TVS with broken screens and should work if properly installed. SONY XBR43X800H TV LED BAR I-4300SY50361-V3 / 4-690-560. Please verify that your board part number is the same as I-4300SY50361-V3 / 4-690-560. 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)