These boards have been removed from mostly new MONITORS with broken screens and should work if properly installed. LG 35BN75C-B MONITOR CONTROL BOARD TS-5535M04C03 / 35M04-C06. Please verify that your board part number is the same as TS-5535M04C03 / 35M04-C06. 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)