The LG 42L53400 motherboard (also known as the mainboard or main PCB) is the central circuit board that controls all major functions of the TV. It manages video and audio processing, signal input/output, and power distribution to other components. This board typically includes:
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HDMI, USB, AV, and antenna inputs
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Tuner for receiving broadcast signals
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Main processor and memory
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Power supply interface
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Backlight control and screen driver interface
It’s specific to the LG 42L53400 model, so compatibility with other TVs is limited.
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