These boards have been removed from mostly new MONITORS with broken screens and should work if properly installed. VIEWSONIC VA2055SA MONITOR POWER SUPPLY BOARD 715G6503-P06-011-001R. Please verify that your board part number is the same as 715G6503-P06-011-001R. 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)