Respironics Trilogy 02, Technical Information

Page: 121 / 424

P
AGE
6-40
T
RILOGY
S
ERVICE
& T
ECHNICAL
I
NFORMATION
1002735, V
ER
. 05
E-68
•
Error indicates a short in the Li-Ion battery
discharge path on the Power Management PCA.
Normally, the Host software recognizes a useable
Detachable and Internal battery and attempts to
disable the discharge path of the Internal Battery.
Since the Internal Battery discharge path has failed
shorted, current will be shared by the Internal and
Detachable Battery
•
Replace Power Management
PCA
E-78
•
Unable to read a valid time from the RTC chip
•
Replace the System/CPU PCA
E-79
•
The time read from the RTC does not match time
on Host CPU
•
Replace the System/CPU PCA
E-119
•
Battery charging is detected when there is no AC
present
•
Replace Power Management
PCA
E-122
•
Unable to write to Event Log
•
Replace the System/CPU PCA
E-123
•
Error indicates a shorted Q29 in the Li-Ion Battery
discharge path on the Power Management PCA.
This MOSFET prevents a low mA sneak current
from the Internal Battery when the discharge path
is disabled by either the Host software or the
hardware
•
Replace the Power
Management PCA
E-149
•
Before a drift is computed for this sensor, its auto-
null valve is opened to atmosphere. A test is
performed to ensure that the valve has fully
opened in accordance with the time provided by
the technical specification. This is performed by
ensuring that the control pressure has dropped
significantly enough after the valve has opened
and a de-bounce time has expired. If the pressure
reading before the valve was opened was not high
enough (due to ventilator therapy settings) to
provide a valid criteria regarding a significant drop
in pressure, then the check is not performed.
When this condition is in effect for a consecutive
number of attempted drifts, the error is reported
•
Replace Sensor Board
•
Replace System/CPU PCA
E-159
•
Problem with power management board or
batteries - unit would not go into Sleep when AC
Power removed
•
Replace Power Management
PCA
•
Replace System/CPU PCA
E-198 •
Circuitry failure
•
Replace the System/CPU PCA