First confirm whether the electrode pads are pasted correctly, check the placement position of the heart electrode pads, check the quality of the heart electrode pads, and check whether there is any problem with the lead on the basis that the electrode pads are pasted and the quality is correct.
Check whether the connection steps are correct, and check whether the lead mode of the operator is connected according to the connection mode of the ECG monitor to avoid the lazy graph method of connecting only five leads to three leads.
After troubleshooting the ECG cable failure, if the waveform still does not come out, the "ECG signal line" on the parameter socket board may be in poor contact, or the connection line of the ECG board and the main control board, and the main control board of the ECG board may be faulty.
