
G1000 System Maintenance Manual – Diamond DA40/40F Page 3-3
190-00545-01 Revision G
3.1.4 Softkeys
Some pages have commands or selections that are activated by the GDU 1040 softkeys. If a softkey is
associated with a command, that command will be displayed directly above the key. A grayed-out
softkey shows a command that is unavailable. A softkey that is highlighted shows the current active
selection.
Figure 3-4. G1000 Softkeys
3.2 G1000 Operation Modes
3.2.1 Normal Mode
To start the G1000 system in Normal Mode:
1. Turn on the aircraft master switch. The following G1000 equipment is powered on:
• PFD & MFD (MFD receives power only if ‘Essential Bus’ switch is OFF)
• GRS 77 AHRS
• GDC 74A Air Data Computer
• No. 1 GIA 63 Integrated Avionics Unit
• GEA 71 Engine/Airframe Unit
• GTX 33 Mode S Transponder
• GMA 1347 Digital Audio Panel
2. Turn on the DA 40 AVIONICS MASTER switch. The following G1000 equipment is powered
on:
• No. 2 GIA 63 Integrated Avionics Unit
• GFC 700 (if equipped)
• GDL 69A (if equipped)
The G1000 system is now powered in the normal mode. The PFD and MFD will function as specified in
the G1000/DA 40 Cockpit Reference Guide, when the system has been correctly installed and configured.
Figure 3-5. Normal Mode
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