User Guide

190-00442-00 Rev. A Garmin G1000 System Overview for Mooney M20M & M20R

2-1

SYSTEM OVERVIEW

2.1 SYSTEM DESCRIPTION

Garmin® International Inc., a unit of Garmin Ltd.

introduces the G1000 Integrated Cockpit System for

Mooney M20M and M20R aircraft. The G1000 includes

the following Line Replaceable Units (LRUs):

• GDU 1040 Primary Flight Display (PFD)

• GDU 1040 Multi Function Display (MFD)

• GIA 63 Integrated Avionics Units (2)

• GEA 71 Engine/Airframe Unit

• GDC 74A

Air Data Computer (ADC)

• GRS 77 Attitude & Heading Reference System

(AHRS)

• GMU 44 Magnetometer

• GMA 1347 Audio System with integrated Marker

Beacon Receiver

• GTX 32 Modes A/C or GTX 33 Mode S

Transponder

LRUs are further described in Section 2.2. All LRUs

have a modular design, which greatly eases troubleshoot-

ing and maintenance of the G1000 system. A top-level

G1000 block diagram is given in Figure 2.2.1 to support

the description of the system.

2.2 LRU DESCRIPTIONS

• GDU 1040 – The GDU 1040 has a 10.4-inch

LCD display with 1024 x 768 resolution. The left

display is conﬁgured as a Primary Flight Display

and the right display is conﬁgured as a Multi Func

tion Display. Both GDU 1040s link and display all

functions of the G1000 system during ﬂight. The

displays communicate with each other through a

High-Speed Data Bus (HSDB) Ethernet connection.

Each display is paired with a GIA 63 Integrated

Avionics Unit, also via Ethernet connection.

• GMA 1347 – The GMA 1347 integrates NAV/COM

digital audio, intercom system and marker beacon

controls. The GMA 1347 also controls manual

display reversionary mode (large red button). The

GMA 1347 is installed between the MFD and PFD.

The GMA 1347 communicates with both GIA 63s

using RS-232 digital interface.