Covidien Nellcor OxiMax N-560, Service Manual

Page: 54 / 158

Troubleshooting
44
All of the problem areas in Table 5 are discussed in the following paragraphs.
Power
Power problems are related to AC and/or DC. Table 6 lists recommended
actions to power problems.
Table 5: Problem Categories
Problem Area Refer To
1
. Power
• No power-up on AC and/or DC
• Fails power-on self-test
• Powers down without apparent cause
Power
on page 44
2. Buttons
• N-560 does not respond properly to
buttons being pressed
Buttons
on page 46
3. Display/Alarms
• Display does not respond properly
• Alarms and other tones do not sound
properly or are generated without
apparent cause
Display/Alarms on page 47
4. Operational Performance
• Displays appear to be operational, but
the N-560 shows no readings
• Suspect readings
Operational Performance
on page 48
5. Data Port
• N-560 data port not functioning
properly
Data Port on page 49