MI (49M5-AN) MOTHERBOARD

The LG 43LH576T-TD motherboard (typically marked as EAX66883503 or EAX66883504) is the primary control board for the LG 43-inch Full HD Smart LED TV. It manages all critical TV functions including video and audio processing, input/output control, and smart features powered by LG’s NetCast or early webOS platform. Supporting a 1920×1080 resolution, it delivers clear picture quality and smooth performance, with integrated support for Dolby Digital sound, Virtual Surround, and Clear Voice technologies. The board includes 2 HDMI ports, 1 USB port, AV input, RF input, LAN port, built-in Wi-Fi, and optical digital audio out, enabling versatile connectivity and access to online content like YouTube and Netflix. As the central unit linking the panel, power supply, and firmware, this motherboard is essential for the TV’s smart and multimedia capabilities, and is commonly replaced in cases of no power, signal failure, or HDMI issues.