Electronic device and fault analysing method

An electronic device comprising:

• a signal generator comprising a plurality of outputs to output a plurality of different signals;
• a selecting unit comprising a plurality of inputs, an output, and a control port, wherein each of the plurality of inputs are electronically connected to each of the plurality of outputs of the signal generator respectively to receive the plurality of different signals outputted by the signal generator;
• a storing unit storing a table which stores a relationship between the plurality of inputs of the selecting unit and the plurality of different signals;
• a control unit electronically connected to the storing unit and the control port of the selecting unit, to read the table from the storing unit, to provide the plurality of different signals in the table of the storing unit to a user to select as a measurement target, and to output a control signal to the selecting unit according to the measurement target selected by the user and the relationship stored in the table, wherein the selecting unit selects a corresponding input of the selecting unit to electronically connect to a corresponding output of the signal generator according to the control signal, to control the signal generator to output a corresponding signal;
• and
• an acquisition unit receiving the corresponding signal output by the signal generator, measuring the corresponding signal to produce measurement data, comparing the measurement data and a standard data to produce an analysis result, and sending the analysis result to the control unit, wherein the control unit further shows the analysis result.