Comen NC5 - SPO2 Failures

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The connection between the
ECG board and DC power
supply board
Reconnect ECG board to DC power supply
board
The cable from the ECG module
to side plate socket is not
connected well
Reconnect them
ECG module defective Replace the ECG module
Main board defective Replace the main board
DC power board defective Replace the DC power module
ECG No baseline
The connection between ECG
board and DC board fails
Check the Pins of ECG board no damage or
bend, then reconnect
ECG module defective Replace the ECG module
Main board or DC board
defective
Replace the main board or DC board
ECG waveform has
interference
ECG setting is something wrong Set the ECG setting in the filter options
The monitor does not connect to
grounding
Connect the grounding cable to the right place
The side plate board is not
connected well with the ECG
board and DC board
Reinstall the boards
Disturbed by some electronic
devices
Remove some electronic devices from the
monitor
ECG module defective Replace the ECG module
HR value is
incorrect
ECG cable defective Replace the ECG accessories
The electrodes are connected
poorly
Reconnect the electrode
System settings incorrect
Check the settings on ECG menu according the
user manual guide
ECG module defective Replace the ECG module
Main board defective Replace the main board
4.6.6 SPO2 Failures
Symptoms Possible Cause Corrective Action