Aspen Avionics EFD1000 - Page 206

EFD1000 Installation Manual
DOCUMENT # A-01-126-00 PAGE 206-225 Revision H
© Copyright 2009 Aspen Avionics Inc.
System Troubleshooting – continued
Fault Cause Corrective Action
OAT Display dashed a) Wiring fault between PFD
and RSM
b) RSM is defective
a) Check wiring
b) Repair or replace RSM
WIND vector, velocity, and
direction display dashed
(Note: wind readout will dash
under 10kts of wind)
a) Groundspeed < 20kts
b) No GPS ground track
c) Airspeed failed
a) Normal operation
b) GPS not computing GTK
c) See AIRSPEED FAIL troubleshooting
procedure
OBS mode inoperative on GPS a) GPS A429 IN bus configured
wrong
b) ARINC 429 “A” and “B” lines
reversed
a) See Figure 9.27 for GPS configuration
notes
b) Correct wiring error to GPS A429 IN
bus