This genuine Samsung assembly PCB main (BN94-17145J) is a vital component for your 75 inch and 55 inch Class The Frame QLED 4K Smart TV. If your TV is experiencing issues like no power, distorted images, or connectivity problems, it may be due to a failing main board. Replace the PCB main to potentially resolve these issues and get your television back to optimal performance. Before purchasing, verify your TV's model number to ensure compatibility.