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GDU 37X Installation Manual – Installation Overview Page 1-1
190-01054-01 Revision B
1 GDU 37X Installation Overview
1.1 Unpacking Unit
Carefully unpack the equipment and make a visual inspection of the unit for evidence of damage incurred
during shipment. If the unit is damaged, notify the carrier and file a claim. To justify a claim, save the
original shipping container and all packing materials. Do not return the unit to Garmin until the carrier
has authorized the claim.
Retain the original shipping containers for storage. If the original containers are not available, a separate
cardboard container should be prepared that is large enough to accommodate sufficient packing material
to prevent movement.
1.2 Introduction
This manual provides an overview of the GDU 37X and its mechanical and electrical installation aspects.
NOTE
The Garmin GDU 37X is not a TSO-certified product and has received
no FAA approval or endorsement, and is therefore not suitable for
installation in a type-certificated aircraft.
The following outline describes the organization of this manual:
Section 1
This section gives a basic overview of the GDU 37X system and interface. This
section contains generic information that pertains to all components of the GDU 37X
system, such as wiring and backshell considerations.
Section 2
This section describes the electrical and installation aspects of the GDU 37X.
Section 3
This section describes the electrical and installation aspects of the Garmin GPS and
XM antennas.
Section 4
This section contains software, configuration, database, and XM activation
information.
Section 5
This section contains post-installation checkout for the GDU 37X.
Appendix A
This section contains pinout information for all GDU 37X LRU’s.
Appendix B
This section contains outline and installation drawings for the Garmin Antennas and
GDU 37X units.
Appendix C
This section connector installation instructions.
Appendix D
This section contains interconnect drawings for the Garmin GDU 37X.
1.3 System Overview
The GDU 37X is a Non-TSO’d multifunction display designed for retrofit installation in light sport (LSA)
and experimental aircraft. It features a built-in XM weather audio receiver (GDU 375 only), 7” WVGA
high-resolution screen, and dual power inputs.