Maintenance and identification method for electronic recycling device

The invention relates to a maintenance and identification method for an electronic recycling device. The maintenance and identification method comprises the following steps: analyzing a circuit principle; dividing a functional module; selecting a suitable fault diagnosis method; designing and programming a fault testing set and applying an excitation signal; positioning measured output response and a fault to a module unit; measuring and calculating maintenance cost and giving out an identification conclusion. According to the maintenance and identification method for the electronic recyclingdevice, provided by the invention, the excitation signal is applied to an input end and a fault point is analyzed by outputting a measured output response signal through an acquired output signal, andthen the electronic recycling device is maintained and identified; a circuit board to be identified is subjected to fault diagnosis and positioning; after the fault is positioned to the module unit,the measurement and calcula