Your Samsung 65-inch 4K Ultra HD Smart QLED TV may experience issues with powering on if the power supply board is failing. The BN44-00948B power supply board is a genuine Samsung replacement part, providing necessary power support to keep your TV running effectively. Ensure that your television remains operational and avoid interruptions in your viewing experience by replacing a faulty power supply board. Always check your TV's model number for compatibility with the BN44-00948B before purchasing.