System Description; Equipment Descriptions; Figure 2-1, Display Units - Garmin G1000 System Maintenance Manual

2

SYSTEM DESCRIPTION

2.1

Equipment Descriptions

2.1.1
GDU 1040A PFD (2) & GDU 1500 MFD
Two Garmin GDU 1040A displays and one GDU 1500 display are installed in the King Air instrument
panel. The GDU 1040A units, 10.4 inch LCD displays with 1024x768 resolution, are configured as PFD 1
and PFD 2; the GDU 1500 unit, a 15 inch LCD display with 1024x768 resolution, is configured as a MFD.
All displays provide control and display of nearly all functions of the G1000 integrated cockpit system. The
PFD displays are located on either side of the MFD, with the stand-by instruments located between the
Pilot's PFD (PFD 1) and the MFD. GMA 1347D Audio Panels are located outboard of each PFD.
Additionally, a GMC 710 AFCS Controller is located in the upper instrument panel, above the MFD, and a
GCU 477 is installed in the pedestal. The GCU 477 provides the control interface for the MFD.
The GDU 1500 communicates with the GDU 1040A units, GDL 69A datalink, GWX68 weather radar,
optional GSD41 data concentrator, optional GDL59 wi-fi datalink and optional GTS 8XX traffic through a
high-speed data bus (HSDB) Ethernet connection. The GDU 1500 communicates with the GCU 477 via
RS-232 digital interface.
The GDU 1040A units communicate with each other and the GIA 63W units through a high-speed data bus
(HSDB) Ethernet connection.
PFD 1 receives primary electrical power from No. 1 Triple Fed Bus and secondary electrical power from
Center Bus. PFD 2 receives electrical power from No. 3 Triple Fed Bus. Electrical power to the MFD is
provided by No. 2 Triple Fed Bus. The displays will power-up immediately with external or aircraft power
or battery operation.
All displays are installed in the King Air panel using ¼-turn fasteners. Three CDU cooling fans are also
installed behind the panel for PFD and MFD cooling.
G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
190-00716-01

Figure 2-1, Display Units

Page 2-1
Revision 1