LCD and LED repair involves diagnosing and fixing issues with display screens, commonly found in televisions, monitors, and other electronic devices. Common problems include dead pixels, flickering, backlight failure, color distortion, and screen bleeding. The repair process typically begins with checking the power supply, connections, and circuit boards. For LCDs, replacing faulty backlight tubes or drivers is common, while LED issues often involve the replacement of LED strips or drivers. Technicians may also address issues with the inverter, capacitors, or the screen itself. Accurate diagnosis and careful handling of delicate components are essential for successful repairs and restoring screen functionality.