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GDU 370
Installation manual
Garmin GDU 370 Installation Manual
Garmin gps receiver installation manual
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Installation manual
(120 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Installation Manual
Record of Revisions
Table of Contents
Paragraph Page
1 G3X Installation Overview
Unpacking Unit
Introduction
G3X Interconnect Example
System Overview
System Architecture
General G3X LRU Specifications
Power Specifications
Physical Specifications
Cooling Requirements
Installation Requirements
Required Accessories
Mounting
Wiring/Cabling Considerations
Wiring Harness Installation
Coaxial Cable Installation
Cable Location Considerations
Section 1 1-1 –
Backshell Assemblies
GDU 37X Unit View
2 Gdu 37X
Equipment Description
Navigation Functions
Interface Summary
Electrical Specifications
Power Consumption
GPS Specifications
Environmental Specifications
GDU 37X Mounting Accessories
Installation Requirements
Additional Equipment
Installation Considerations
Mounting Requirements
Unit Installation
Maintenance
Section 2 2-1 –
Gdu 37X Panel Cutout Template
3 Gmu 44
Equipment Description
Electrical Specifications
Environmental Specifications
GMU 44 TSO/ETSO Compliance
Installation Requirements
Installation Considerations
GSU 73/GMU 44 Interconnect Harness Fabrication Instructions
Section 3 3-1 –
Mounting Instructions
Maintenance
5 Gtp 59
Equipment Description
GSU 73 Unit View
Electrical Specifications
Features Summary
Installation Requirements
Installation Considerations
Additional Equipment Required
GSU 73 Air Hose Fitting Locations
Pneumatic Connections
Mounting Requirements
GSU 73 Orientation Calibration
Unit Installation
Maintenance
Section 4 4-1 –
G3X LRU Part Numbers
Contents of GDU 37X Assembly (010-00667-XX)
G3X LRU Power Requirements
G3X LRU Physical Specifications
Contents of G3X Installation Kit (K10-00017-00)
Contents of G3X LRU Kit (K10-00016-00)
Pin Contact and Crimp Tools Part Numbers
GDU 37X Supply Voltages
GDU 37X Power Requirements
GDU 37X GPS Specifications
GDU 37X Supported Antennas
Contents of GDU 37X Connector Kit (011-01921-00)
Equipment Description
Installation Requirements
Available Equipment
TSO/ETSO Compliance
GMU 44 Electrical Specifications
GMU 44 Environmental Specifications
TSO/ETSO Deviations
GMU 44 Part Numbers
GMU 44 Accessories
Required Distance from Magnetic Disturbances
Parts Needed for GMU 44 Installation
GMU 44 Connector Kit (011-00871-00) Contents, Reference Figure C-2.4
TSO/ETSO Deviations for the GTP 59
Installation Considerations
GSU 73 Supply Specifications
GSU 73 Environmental Specifications
GSU 73 Available Equipment
Contents of P731 Connector Kit (011-01818-00)
Contents of P732 Connector Kit (011-01818-01)
Section 5 5-1 –
Unit Installation
Maintenance
GTP 59 Part Number
GTP 59 Outside Air Temperature Kit
Applicable Tso/Etsos for the GTP 59
Parts Needed for GTP 59 Installation
6 Garmin GPS/XM Antennas
GPS Antennas
XM Antennas
GPS Antenna Minimum Requirements
XM Satellite Radio Antenna Minimum Requirements
Antenna Mounting Considerations
VHF COM/GPS Interference
Specifications
GPS/XM Antenna Mounting Location
Recommended Antenna Placement
Carbon/Glass Buried Antenna Area
Buried Antenna (below the Skin Covering or Glareshield) Mounting
Glare Shield Buried Antenna Area
Antenna Doubler/Backing Plate
Antenna Grounding Plane
Teardrop Footprint Antenna Doubler Design and Installation
Teardrop Footprint Antenna Installation (GA 55 and GA 56)
Preparation of Doubler
Antenna Installation Instructions
Reference Figures
Sample Doubler Location, Teardrop Footprint Antenna, Metal Skin Aircraft
Doubler Design, Teardrop Footprint Antenna, Skin Thickness 0.051" to 0.063"
ARINC 743 Footprint Antenna Installation (GA 55A, GA 57X)
ARINC 743 Footprint Antenna Doubler Design and Installation
Doubler Design, ARINC 743 Footprint Antenna, Skin Thickness 0.032" to 0.049"
Doubler Design, ARINC 743 Footprint Antenna, Skin Thickness 0.049" to 0.051"
Doubler Design, ARINC 743 Footprint Antenna, Skin Thickness 0.051" to 0.063"
Sample Doubler Location, ARINC 743 Antenna, Metal Skin Aircraft
Installation of ARINC 743 Footprint Antenna
Generic Non-Structural ARINC 743 Footprint Antenna Installation
Non-Structural Mount Installation
Generic Non-Structural Antenna Installation
Example Bracket Antenna Mounting under Glareshield
Considerations for Non-Structural Mounting
Non-Structural Installation to Glareshield
Example Non-Structural Antenna Mounting under Glareshield
Example Teardrop Antenna Installation in Airframe under Fabric Skin
Example ARINC 743 Footprint in Airframe under Fabric Skin
Non-Structural Installation to Airframe
Example Non-Structural Antenna Mounting on Airframe
Section 6 6-1 –
Example Teardrop Footprint Antenna Mounting under Fabric Skin
Minimum Distance Required between Tube Structure and Antenna
7 Software, Configuration, Databases, and XM Activation
Configuration Mode
Software/Audio Data Identification
Software Loading Procedure
GDU Software Loading Procedure
Configuration
Acft Configuration Page
W/B (Weight/Balance) Configuration Page
Units Configuration Page
DSPL (Display) Configuration Page
Sound Configuration Page
Comm Configuration Page
Garmin Database Updates
Updating Garmin Databases
Available Databases
Section 7 7-1 –
AOPA Airport Directory
XM Activation Instructions (GDU 375 Only)
8 Post-Installation Checkout and Calibration Procedures
Softkey Positions
Recommended Test Equipment
GDU 37X Test Procedure
GSU 73/GMU 44 Post-Installation Calibration Procedure
Post-Installation Calibration Procedure Summary
Data Validity Requirements for AHRS Calibration Procedures
Configuration Mode GSU Page Status Boxes
Aircraft Alignment
Magnetometer Interference Test Sequence Example
Section 8 8-1 –
9 Troubleshooting
Gdu 37X
Sd Card Slot
Gmu 44
Heading Failure Indication (Full-Screen PFD)
Gsu 73
GSU 73 AHRS Pitch/Bank Limitations for Cold Start While Airborne
Attitude, Air Data, and Engine/Airframe Failure Indication
AHRS Align Message (PFD)
GSU 73 -Air Data Troubleshooting
Airspeed and Altitude Failure Indications
Attitude, Heading, Air Data, and Engine/Airframe Failure
Troubleshooting On-Board the Aircraft
CONFIG GSU Page
GSU Page
Section 9 9-1 –
10 Return to Service Information
Gdu 37X
Gsu 73
Section 10 10-1 –
Gmu 44
APPENDIX A G3X Pinouts
Gdu 37X
A-1 View of J3701 Connector from Back of Unit
Aircraft Power
Mode Selections
A-2 View of J441 Connector Looking at Rear of Unit
Gmu 44
Power Function
Serial Data
A-3 Rear View of Connector End Plate
Gsu 73
Connector Description
Serial Data Electrical Characteristics
Discrete Outputs
Analog Input Configuration
Temperature Inputs
B-1 Insulation/Contact Clearance
APPENDIX B Connector Installation Instructions
Thermocouple Installation into a Backshell
B-1 Thermocouple Kit GPN 011-00981-00
B-2 Jackscrew Backshell Thermocouple Installation
B-3 GPN: 011-00979-22 – Kit (W/Eeprom and Sockets)
B-2 GPN: 011-00979-20 – Kit (W/Eeprom and Pins)
Jackscrew Configuration Module Installation into a Jackscrew Backshell
B-3 Insulation/Contact Clearance
B-4 Jackscrew Backshell Installation
Jackscrew Backshell Installation Instructions
B-4 Parts Supplied for a Shield Block Installation (Figure B-1)
B-5 Parts NOT Supplied for a Shield Block Installation (Figure B-1)
B-5 Shield Install Onto a Jackscrew Backshell (78 Pin Example)
Shield Termination Technique - Method A.1 (Standard)
B-6 Shielded Cable Preparations for Garmin Connectors
B-7 Insulation/Contact Clearance
Shield Termination Technique - Method A.2 (Daisy Chain)
Shield Termination - Method B.1 (Quick Term)
B-9 Method B.1 (Quick Term) for Shield Termination
B-10 Method B.2 (Daisy Chain-Quick Term) for Shield Termination
B-7 Shielded Cable Preparations – (Quick Term)
Shield Termination-Method B.2 (Daisy Chain-Quick Term)
B-11 Daisy Chain between Methods a and B
Double-Shield Termination Technique - Method
B-8 Shielded Cable Preparations for Garmin Connectors
Double-Shield Termination Technique (Quick Term) - Method
ID Program Pins (Strapping)
B-14 D-Sub Spliced Signal Wire Illustration
Splicing Signal Wires
Circular Connector Installation Instructions
B-10 Parts NOT Supplied for a Circular Connector Installation (Figure B-15)
B-9 Parts Supplied for a Circular Connector Installation (Figure B-15)
B-15 Circular Connector Install (19 Contact Example)
B-16 Standard Shield Termination
B-11 Shielded Cable Preparations for Garmin Connectors
B-17 Insulation/Contact Clearance
B-18 Daisy Chain Shield Termination
B-12 Shielded Cable Preparations – (Quick Term)
B-19 Quick Term Shield Termination
B-20 Daisy Chain, Quick-Term Shield Termination
B-21 Daisy Chain Shield Termination between Methods a and B
Appendix C Outline and Installation Drawings
C-1.1 GDU 37X Outline Drawing
C-1.2 GDU 37X Panel Cutout Drawing
C-2.1 GMU 44 Mounting Rack
C-2.3 GMU 44 Bottom Mounted Installation
C-2.4 GMU 44 Wiring Detail
C-3.1 GSU 73 Outline Drawing
C-4.1 GTP 59 O.A.T. Probe Installation Drawing
C-5.1 GA 55/55A Installation Drawing
C-5.2 GA 56 Installation Drawing
Appendix D Interconnect Drawing
Appendix E External Interface Drawing (Example Only)
E-1.1 Notes, GDU 37X RS-232 and Audio Examples
E-1.2 GSU 73 RS-232 and ARINC 429 Examples
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G3X
Installation Manual
190-01115-01
August, 2009
Revision A
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Troubleshooting
Troubleshooting
115
GSU 73 -Air Data Troubleshooting
121
Troubleshooting On-board the Aircraft
124
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This manual is also suitable for:
Gdu 375
Gmu 44
Gsu 73
Gtp 59
G3x
Gdu 37x
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