EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 216-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
Figure E19: EA100 to Century 31 Attitude Source w/DISC
2
A/P AHRS FAIL light must be installed in the pilots primary field of view. Use light/dimmer/test switch
P/N MS25041-4. Wire as shown. Use 14v or 28v bulb as appropriate.
3
4
5
6
7
GENERAL INSTALLATION NOTES
All wires in this section 22AWG unless otherwise specified
All grounds should be as short as possible
Terminate all shields within connector back shell
EA100
41
39
3
16
1
P2
AP EXCITE HI
AP EXCITE LO
AP ROLL HI
A/P INTRLK COMM
A/P INTRLK ENERGIZED
17
2
AP PITCH HI
AP PITCH LO
4
2
9
A/P EXCITATION
PITCH GYRO SIG
8
ROLL GYRO SIG
A/P REFERENCE
The existing autopilot disconnect circuit must be run through an internal relay within the EA100. This
ensures the autopilot cannot be engaged or will disengage if the EA100 attitude is invalid. The
autopilot “sonalert” or disconnect tone must not be interrupted with this relay. Wire as shown.
CD176
Remove wire from CD200-19 and install new pin/wire or cut wire and splice on new wire. Run
new wire from CD200-19 to EA100 P2-41.
3
Before
A/P DISC Switch OR Century Relay Box (partial)
Existing Wire
A/P
DISC
After
A/P DISC SW
CD200
19
TR1 Transformer/Relay Interface box must be field fabricated using the instructions in this Appendix.
A/P DISC SW
CD200
19
CD189
3
3
PITCH/ROLL REF
3
22
24
23
4
CD200
Transformer
Interface Box
(See Figure
E7 for
internal
components
and
connections)
P1
P1
The old wire that was going to CD200-19 (from CD189-3) will need to be lengthened and run to
EA100 P2-39 or install new pin/wire in CD189-3 and run new wire to EA100 P2-39.
6
7
8
9
10
11
1
2
3
4
5
2
43
44
A/P AHRS COMM
A/P AHRS INVALID
A/P AHRS FAIL
A/P circuit
breaker
(existing)
P2
2
1
3
MS25041-4
20 AWG
20 AWG
EA100
1
1
1
8
7
8
TR1
11
44
A/P GND
Existing Wire
No flight director with Century 31
No flight director with Century 31
No flight director with Century 31
A/P
DISC
CD189
3
11
44
Existing Wire - remains
A/P GND
Century 31
1D762 (computer)
Century 31
1D762 (computer)
Century 31
1D762 (computer)
18
AP ROLL LO
