These boards have been removed from mostly new TVS with broken screens and should work if properly installed. SAMSUNG QN55Q6DTAFXZA TV POWER SUPPLY BOARD BN44-01058A / L55E7 THS. Please verify that your board part number is the same as BN44-01058A / L55E7 THS. 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)