If your Samsung 50-Inch TU7000B 4K Crystal UHD HDR Smart TV is experiencing issues such as no power, inconsistent operation, or a blank screen, it might be time to replace the main board. The assembly board P-main (BN96-51849F) is important for restoring functionality to your television. Designed specifically for your TV model, this genuine Samsung part ensures compatibility and performance. Verify your device's model number for compatibility before purchasing.