For TV repair technicians, spare-part dealers and SKD assemblers across Africa and Southeast Asia, picking a compatible LED TV Mainboard directly decides whether your TV repair or TV assembly project succeeds or fails. Many buyers make costly mistakes: they only check screen size, ignoring panel interface, firmware and power requirements, leading to black screens, no sound or permanent hardware damage. Based on over 20-year field experience from Sichuan Junhengtai Electronic and Electric Appliance Co., Ltd., this article breaks down practical selection tips for different television models.