Figure 2-4. Grs 77 Mount - Garmin Diamond DA 40 Maintenance Manual

2.1.8 GRS 77 Attitude & Heading Reference System
The Garmin GRS 77 AHRS provides attitude and heading information to the G1000 system. The unit is
mounted remotely in the baggage compartment, to the starboard side of the remote avionics enclosure
(see Figure 2-4 and Figure 2-6). Power is received from the 'Essential' bus. The GRS 77 interfaces with
and provides power to the GMU 44 Magnetometer. The GRS 77 supplies attitude and heading
information directly to the PFD, MFD, and to both GIAs.

Figure 2-4. GRS 77 Mount

Page 2-6 G1000/DA40 System Maintenance Manual
Revision 6 190-00303-03