Your Samsung UN65JU6500F 65-inch 4K UHD LED TV may experience issues like erratic behavior, failure to power on, or screen display problems due to a faulty main PCB assembly. The BN94-10521B main PCB assembly is a genuine Samsung part specifically designed to replace the original PCB in your TV. This main board ensures the proper functioning of your television by addressing potential problems arising from a damaged or malfunctioning PCB. Verify your device's model number for compatibility before purchasing.