If your Samsung 55-Inch Class JU6400 6-Series 4K UHD Smart TV is experiencing issues with power, connectivity, or display, it may be time to replace the main PCB assembly. The BN94-10244A is a genuine Samsung part, designed to restore functionality to your device. Check the larger white barcode sticker on your main board to find the part number BN94-10244A. Before purchasing, verify your TV's model number to confirm compatibility.