Comen NC5 - Button and Knob Failures

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NO TEMP values
The temperature is lower than
the monitor can measure range
Check out the TEMP is in the normal range
The ear thermometer is
defective
Change another ear thermometer
The connection between the
main board and thermometer
receiver board poorly
connected or damaged
Reconnect the cable or replace the cable if
damaged
The thermometer isn’t well
paired with the main unit
Repair the ear thermometer
The ear thermometer receiver
module is defective
Replace the thermometer receiver module
Main board is defective Replace the main board
TEMP value is
incorrect
The thermometer receiver
module defected
Replace the thermometer receiver module
The ear thermometer is
defective
Replace the ear thermometer
Temperature display
is unstable
The ear cap is defective or
used many times
Replace another ear cap
The ear thermometer receiver
module is defective
Replace ear thermometer receiver module
The ear thermometer is
defective
Replace the ear thermometer
The main board is defective Replace the main board
4.6.10 Button and Knob Failures
Symptoms Possible Cause Corrective Action
Buttons do not work
Cable defective or poorly
connected
Check that cable between button board and
main board, DC power supply board and switch
on/off board are properly connected.
Button board or power on/off
board failure
Replace the button board or power on/off board
Silicone button failure
Replace the NIBP silicone button or power
on/off silicone button