Table of Contents
Advertisement
Problem
Monitored FiO
from setting
No audible alarm
Press F1 to continue is displayed
on LCD during power on
LCD shows white screen only
LCD shows black screen only
Ventilator power resets
Software fails to download
Device Alert Messages
3.3
Table 3-2.
defines the device alert violations and messages that may be displayed in the message
window. The first line in the message window displays the date and time of the error; the second
line displays the error message.
Device alert violation
Control communications
failure
Control CPU failure
Control exception failure
Control RAM failure
Service Manual
Table 3-1. Troubleshooting Guide (Continued)
values differ
Defective oxygen sensor. Defective
2
analog board.
Defective alarm speaker, sound
processor board, or SBC.
Depleted battery on SBC board.
Defective SBC.
Corrupted files on CF card.
Defective SBC board.
Corrupted files on CF card.
Defective SBC board.
Defective display board.
Defective LCD display.
Defective SBC board.
Defective power sequence board.
Faulty USB download sticks.
Violation message
Monitor μP Failed
Control CPU Failed
M Internal System
Control RAM Failed
Potential cause
Table 3-2. Device Alert Messages
Priority level
High
High
High
High
Suggested action
Replace the oxygen sensor. Replace analog
board.
Replace alarm speaker or sound processor
board, or SBC.
Replace battery on SBC board.
Replace SBC board.
Replace CF card.
Replace SBC board.
Replace CF card.
Verify voltage on the fifth solder pad from the
top, left side of connector LCD 1, is at least 2.5
volts. If not, replace SBC board.
Replace display board.
Replace LCD display.
Replace SBC board.
Replace power sequence board.
Replace USB software sticks.
Definitions
The monitor processor does not respond to a
request from the control processor. The monitor
processor is not running.
The control processor on the main PCB is bad.
The control processor has detected an abnormal
operation, such as illegal instruction or division by
zero, that was generated by the control software.
Random access memory that is used by the control
processor on the main PCB is damaged.
Device Alert Messages
3-3
Advertisement
Table of Contents
