Experiencing unexpected issues with your 75-Inch Class TU700D 4K Crystal UHD HDR Smart TV may indicate a malfunctioning main board. The Samsung main board (BN94-16156C) is a crucial component for your television, responsible for processing audio and video signals. If your TV is showing signs of failure such as no power, random shutdowns, or distorted display, replacing the main board could be the solution you're looking for. This genuine Samsung part is designed specifically for your television model, ensuring compatibility and performance. Before purchasing, verify your TV's model number for compatibility.