These boards have been removed from mostly new TVS with broken screens and should work if properly installed. SONY_XBR65X850B TV LED ASSEMBLY 4060101-373-0194 / NLAW50304. Please verify that your board part number is the same as 4060101-373-0194 / NLAW50304. 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)