LG webOS LED TV MOTHER BOARD MODEL NUMBER UA43UM7300 The LG UA43UM7300 main board is a specific replacement part designed for the LG 43-inch 4K Ultra HD Smart LED TV model, which often includes variations like the 43UM7300PTA. Key Details Part Type: Main Board (sometimes referred to as a motherboard or PCB). Compatibility: It is an original equipment manufacturer (OEM) part explicitly compatible with the LG 43UM7300 series of smart TVs. Function: The main board houses the primary processing unit, memory, and various input/output ports (like HDMI, USB, etc.) and runs the TV's operating system, which is typically webOS for this model series. Condition: Replacement boards are often available in new, 100% tested conditions, verified by certified technicians to ensure original display quality and functionality are maintained. Installation: The manufacturer recommends handling the board with anti-static gloves, ensuring the TV is unplugged, and aligning all ports and screws correctly during installation for safe operation. Purchasing Information When purchasing a replacement, ensure the part number matches your specific TV's model number (e.g., 43UM7300 or 43UM7300PTA) to guarantee compatibility.