Nellcor OXIMAX N-600X Series, Руководство по обслуживанию

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Keys
Service Manual
10030881 Rev. B 12-2008
153
Keys
This section relates to non-responsive keys.
Display/Alarms
This section relates to non-functioning displays and audible tones or alarms.
Table 28.
Keys Problems
Symptom Recommended Corrective Action
Keys do not respond when
the oximeter is turned on.
•
Replace the Main Board PCB. See
Main Board PCB
Replacement,
page 179.
•
If the keys still do not work, replace the Top enclosure
assembly. See
Top Case Assembly Replacement,
page 183.
Table 29.
Display/Alarms Problems
Symptom Recommended Corrective Action
Display values are missing
or erratic.
•
If the OxiMax pulse oximetry sensor is connected, replace
the pulse oximetry cable.
•
If the condition continues, replace the OxiMax pulse
oximetry sensor.
•
If the condition persists, replace the Main Board printed
circuit board. See
Main Board PCB Replacement,
page 179.
Display pixels do not light.
•
Check the connection between the Main Board PCB and the
Display PCB.
•
If the condition continues, replace the Display PCB. See
Display PCB Replacement,
page 177.
•
If the condition persists, replace the Main Board PCB. See
Main Board PCB Replacement,
page 179.
Alarm sounds for no
apparent reason.
•
Moisture or spilled liquids can cause an alarm to sound.
Allow the oximeter to dry thoroughly before using.
•
If the condition persists, replace the Main Board PCB. See
Main Board PCB Replacement,
page 179.
Alarm does not sound.
•
Check the alarm silence status.
•
Check the speaker connection.
•
Replace the speaker as described in
Alarm Speaker
Replacement,
page 181.
•
If the condition persists, replace the Main Board PCB. See
Main Board PCB Replacement,
page 179.
Primary speaker fails and
a slow-pulsing, high-
pitched tone sounds.
•
Press the HELP/CONTRAST button and follow the on-screen
messages.