Alarms Troubles - Welch Allyn Connex Service Manual

36 Troubleshooting
Symptom
Alarms
Symptom
The light bar does not turn on
No audible alarm occurs
Possible cause
The communications board is not receiving power Check the voltage from J49 on
Possible cause
No alarm was triggered
There is a faulty connection
The light-bar board is defective
The main board is defective
No alarm was triggered
The alarm audio is set to Off
The alarm audio is set too low
®
Welch Allyn Connex Integrated Wall System
Suggested action
the main board for +5.0, ±0.5V
DC. Replace the main board if
necessary.
Suggested action
Verify that the light bar flashes
when the system starts.
Verify that the alarm is triggered
by a visual indicator in the
message status area and an
audio alarm occurs.
Check the light-bar harness and
connections at the light bar and
J46 on the main board. Replace
the defective cable if necessary.
Apply +3.3V to pin 1 of the
harness and ground to pin 2.
Verify that the amber LEDs
illuminate. Connect the ground to
pin 3. Verify that the red LEDs
illuminate. If one or both do not
illuminate, replace the LED light
bar.
Verify that there are +3.3V at pin
1 of J46 on the main board.
Verify that the alarm is triggered
by a visual indicator in the
message status area and light
bar. Listen for audible sounds on
start up.
Touch the Alarms > General
tabs, then select Alarm audio
on.
In Advanced settings, touch the
General > Alarms tabs, then
disable Allow user to turn off
general audio.
Touch the Alarms > General
tabs, then set Volume to the
desired level.
In Advanced settings, touch the
General > Alarms tabs, then