95-80 Aspen EFD Electronic Flight Instrument System (EFIS)
95-81 Aspen EFD500H & EFD1000H Display(s) Installation
A. Description
R66 options include a single screen Aspen PFD or a dual screen Aspen PFD and MFD.
The Aspen PFD (Primary Flight Display) is an LCD unit with displays for attitude,
altitude, airspeed, heading, and optional NAV (HSI/CDI). The Aspen PFD is a situational
awareness aid, to be used in conjunction with required VFR instruments (altimeter,
airspeed indicator, and magnetic compass).
The standard Aspen PFD installation configures the lower half of the display as a
directional gyro. An optional installation configures the lower half of the display to a
Horizontal Situation Indicator (HSI).
The Aspen MFD (Multifunction Display) is an LCD unit with displays for moving map
navigation data, terrain, and traffic. Terrain and traffic may also be overlaid on moving
map.
GPS position data is received from Garmin GTN series GPS for moving map and terrain
displays. Aspen MFD also includes an internal terrain database.
TIS-A traffic data may be received from Garmin GTX330 transponder for moving map
display; GPS position data is received from GTN series GPS.
Heading and outside air temperature data is received from Aspen PFD. GPS position
data may be received from Aspen PFD which includes a remote sensor module (RSM)
for backup GPS position data if primary GPS fails.
B. Schematics
Refer to Figure 98-16 for Aspen EFD500H Display Installation electrical schematic,
and Figure 98-17 for Aspen EFD500H & EFD1000H Displays Installation electrical
schematic.
Refer to Figures 95-1 and 95-6 for Aspen PFD pitot-static schematic, and Figures 95-1
and 95-8 for Aspen MFD pitot-static schematic.
C. Removal
1. Turn battery switch off and pull-out EFIS circuit breaker (7.5 amp) at panel.
2. Gently depress blue tab(s) at top of Aspen PFD/MFD to release display(s) from
mounting bracket(s).
3. PFD only: Disconnect pitot and static lines from display using quick-disconnect
couplers. Temporarily cap pitot and static line fittings at display and in aircraft to
prevent contamination.
4. Loosen screws securing airframe wiring harness connector(s) to display(s), unplug
connector(s), and remove display(s).
MAY 2015 Chapter 95 Instrument System Page 95.15
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