User Guide

190-00442-00 Rev. AGarmin G1000 System Overview for Mooney M20M & M20R
2-8
SYSTEM OVERVIEW
2.5 SYSTEM POWER-UP
The G1000 system is integrated with the aircraft elec-
trical system and receives power directly from electrical
busses. Garmin G1000 PFD/MFD and supporting sub-
systems include both power-on and continuous built-in
test features that exercise the processor, RAM, ROM, ex-
ternal inputs and outputs to provide safe operation.
While the system begins to initialize, test annuncia-
tions are displayed to the pilot at power up, as shown
in Figure 2.5.1. All system annunciations should clear
within 1 minute of power up. The GMA 1347 also an-
nunciates all bezel lights briefly upon power up.
On the PFD, the AHRS system displays the ‘AHRS
ALIGN: Keep Wings Level’ message and begins to initial-
ize. AHRS should display valid attitude and heading fields
within 1 minute of power up. The AHRS can align itself
while the aircraft taxis or during level flight.
NOTE: See the approved Airplane Flight Manual
Supplement for specific procedures concerning
avionics power application and emergency
power supply operation.
NOTE: See the Annunciations & Alerts Pilot’s
Guide for more information regarding system
annunciations and alerts.
Figure 2.5.1 PFD Initialization