Respironics DreamStation, Сервисное и техническое руководство, Страница: 65 / 135

P
AGE
5-20 1117539, V
ER
. 07
The Display is Erratic •
The device has been
dropped or mishandled
•
The device is in an area
with high Electromagnetic
Interference (EMI)
emissions.
•
Problem with UI ribbon
cables and connections.
•
Unplug the device and reapply
power.
•
Relocate the device to an area
with lower EMI emissions
(cellular phones, computers
TVs, etc.).
•
Check UI connections.
•
Replace UI Panel if faulty.
Back Light Does Not Work •
Faulty PCA
•
Ambient light sensor is
blocked.
•
Replace PCA if ambient light
sensor is faulty.
•
Verify nothing is blocking the
ambient light sensor.
Back Light Dims Too Quickly •
User perception
•
Ambient light sensor not
functioning
•
Verify ambient light sensor is
functioning by covering the
sensor hole on the Top
Enclosure.
•
Replace PCA if ambient light
sensor does not function.
Back Light Does Not Dim •
Ambient light sensor not
functioning
•
Verify ambient light sensor is
functioning by covering the
sensor hole on the Top
Enclosure.
•
Replace PCA if ambient light
sensor does not function.
Can’t Change Humidity Settings •
User perception - can
only change setting when
therapy is active. You
cannot change the
settings in the device
menus
•
Dial does not function
•
Activate therapy and verify the
settings change.
•
Verify the dial functions.
•
Replace any damaged UI
panel if dial does not function.
P
ROBLEM
/F
AILURE
M
ODE
P
OSSIBLE
C
AUSE
S
TEPS TO
T
AKE