This module is suitable for the replacement of the output power below 180W, the output voltage is in the range of 5-24V after the single-ended flyback switching power supply is damaged. It is suitable for the maintenance of the main and auxiliary power supply of the 14′′-60′′ LCD TV. It can also be used for the maintenance of power supplies such as monitors, set-top boxes, satellite receivers and DVDs. As long as the switching transformer is repaired on the power supply, the input and output rectification and filtering circuits are normal, and the product can be used for replacement maintenance. After repairing, the original machine level can be achieved, and the maintenance work can be greatly simplified.