Advisory Messages Guide - Nellcor NPB-75 Service Manual

Section 5: Troubleshooting
5-4
Table 5-1: Troubleshooting Guide (Continued)
Symptom Probable Cause
LED display
The Power
Management option is
does not light
set at LOW .
when the unit is
functioning.
An LED display has
failed.
A CO
has failed.
Beeper does not The Pulse Tone option
beep. on the Alarm Silence
menu has been
disabled.
One or more of the
Alarm Silence options
has been turned OFF .
A CO
failed.
Table 5-2: Advisory Messages Guide
Message Probable Cause
A CO
Check Unit !
has failed.
Check CO !
2
An SpO
Check SpO !
2
component has failed.
Corrective Action
Refer to the monitor's
operator's manual to
change the Power
Management option
to NORMAL or
HIGH .
Replace with new
LED display.
board component Replace with a new
2
CO
Turn the Pulse Tone
ON. Refer to the
monitor's operator's
manual.
Turn the respective
alarm ON . Refer to
the monitor's
operator's manual.
component has Replace with a new
2
CO
Corrective Action
board component Check Event
2
Messages screen in
Service Mode.
board Replace with a new
2
SpO
board.
2
board.
2
board.
2