Comen N Series - Technical Alarm Check; Troubleshooting Guide; Power On;Off Failures

Troubleshooting Guide
2
Chart 4-1
4.5 Technical Alarm Check
Before troubleshooting the patient monitor, check for technical alarm messages. If an alarm message is
presented, eliminate the technical alarm first according to the User Manual.
4.6 Troubleshooting Guide
4.6.1 Power On/Off Failures
Symptoms
Possible Cause
Corrective Action
The patient
monitor fails
to start
Cables poorly connected
Check that cables are properly connected (normally
220 V)
The battery capacity is too low or
damaged
Charge or replace battery promptly
Power-on key board is defective
Replace the power-on key board
AC power module is defective
Replace the AC power module (input 220 V, output
15 V)
Mainboard power module is
defective
Replace the main board
Possible causes of the symptoms:
● AC indicator does not light
When there is regular AC power, the AC indicator lights up.