Aspen Avionics EFD1000 - Page 203

EFD1000 Installation Manual
DOCUMENT # A-01-126-00 PAGE 203-225 Revision H
© Copyright 2009 Aspen Avionics Inc.
System Troubleshooting
Fault Cause Corrective Action
Display does not power on
(Note: there can be up to a 20
second delay from the
application of power to a
visible display)
a) PFD missing A/C power
b) PFD may have been
improperly shut down
c) PFD missing A/C ground
d) PFD is defective
a) Check PFD circuit breaker, PFD on/off
switch on panel, wiring, and A/C battery
voltage > 11.5 volts.
b) Switch unit off using “REV” button or
“SHUT DOWN” command from Main
Menu page 6.
c) Check wiring to PFD
d) Repair or replace PFD
Display does not power off
(Note: PFD will switch to
internal battery if airspeed is
greater than 30kts.)
a) Airspeed is above 30kts
b) PFD may have been switched
to internal battery
c) PFD may have been
improperly shut down
d) PFD is defective
a) Normal operation
b) Switch unit off using “REV” button or
“SHUT DOWN” command from Main
Menu page 6.
c) Hold “REV” button for 20 seconds or
unplug PFD internal battery for 3
seconds
d) Repair or replace PFD
Display flashes on/off,
black/white or blue/white
repetitively
a) Configuration Module
unplugged or miss wired
b) RSM or CM wiring short
c) Configuration module
defective
d) PFD defective
a) Check CM plug and wiring from PFD
to CM
b) Verify RSM pin 6 or CM pin 1 is not
shorted to aircraft ground or another
pin.
c) Repair or replace CM
d) Repair or replace PFD
“CONFIG MODULE LINK FAIL”
message
a) Configuration Module
unplugged or miss wired
b) Configuration module
defective
c) PFD defective
a) Check CM plug and wiring from PFD
to CM
b) Repair or replace CM
c) Repair or replace PFD
“INITIALIZING” message for
more than 30 seconds
(Note: At
-20ºC and below the message may
take up to 3 minutes to clear)
a) RSM to PFD communication
lost
b) RSM failed
c) PFD failed
a) Check RSM to PFD wiring for shorts or
opens.
b) Repair or replace RSM
c) Repair or replace PFD
“RSM LINK FAIL” message a) RSM to PFD communication
lost
b) RSM failed
c) PFD failed
a) Check RSM to PFD wiring for shorts or
opens.
b) Repair or replace RSM
c) Repair or replace PFD
“WRONG CONFIG MODULE”
message
a) PFD is at one software level
and config module is at a
different software level
a) Convert config module per
appropriate service bulletin.
ALTIMETER, AIRSPEED, VSI FAIL
(RED-X)
a) Air data sensor has not had
sufficient warm-up time.
b) Pitot/static lines reversed
c) Air data sensor failed
a) Allow up to 20 minutes at temps
below -20ºC for flags to clear
b) Connect pitot line to “P” port and
static line to “S” port on PFD
c) Repair or replace PFD