4-8 BeneVision N22/BeneVision N19 Patient Monitor Service Manual
NOTE
When the power module fails, it may cause damage to other components, e.g. the monitor suddenly fails
during start-up, due to supply protection. In this case, troubleshoot the power module by following the
procedure described in the table above.
Components of the main unit, SMR and parameter modules are powered by the power module. In the event
that a component malfunctions, verify the operating voltage is correct. Refer to Chapter 2 Theory of
Operation for the operating voltage and measurement points for each component.
4.7.7 Network Related Problems
Fault Symptom Possible Cause Countermeasure
Frequent dropouts or
network disconnects
Improper network cable connection Check for network cable connection and length
(should not exceed 50 m).
Incorrect IP configuration Check for IP conflict in the network and reset the IP
address.
The patient monitor is
connected to a network but
cannot view other patients
in the View Others mode
Improper network cable connection Check for network cable connection and length
(should not exceed 50 m).
Too many simultaneous requests for
viewing the patient monitor
One monitor could only be observed by eight
monitors simultaneously, and the observing
requests not within the range would not be handled.
Incorrect IP configuration Check for IP conflict in the network and reset the IP
address.
Incorrect network settings Verify the wireless network settings are correct.
Antenna not installed properly Verify the antenna for the wireless network card is
connected to the wireless module reliably.
Wireless module damaged Replace the wireless module.
Main control board failure Replace the main control board.
Antenna not installed properly Verify the antenna for the MPAN module is installed
properly.
MPAN module damaged Replace the MPAN module.
Satellite module rack (SMR) COM
board defective
Replace the SMR COM board.
Wrong software version for the
MPAN module
Upgrade the MPAN module software.
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