Page 1 G3X/G3X Touch Installation Manual 190-01115-01 November, 2016 Revision AA...
Page 2 Garmin. Garmin hereby grants permission to download a single copy of this manual and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and to print...
Page 3 32-137 32.4.25.2.1 Added Twin-Engine configuration info 32-138–32-152 32.4.25.2.2 Updated engine sensor info 32-158 32.4.25.3 Updated User_Defined Input Calibration 32-164 32.5.1 Corrected SDXC card note A.2.2, A.2.3 Added GMU 22 mounting info 190-01115-01 G3X/G3X Touch Installation Manual Rev. AA Page i...
Page 4 NOTE The Garmin G3X system includes non-TSO certified products that have received no FAA approval or endorsement. Consequently the G3X system is not type-certificated and is not suitable for installation in type-certificated aircraft.
Page 5 NOTE All GMU 22 information in this Installation Manual also applies to the GMU 44. The GMU 44 had previously been used as the G3X magnetometer but has been replaced by the GMU 22. NOTE Connector references JXXX(X) and PXXX(X) are used throughout this document. The letter “J”...
Page 6 Canada. Pour réduire les éventuelles perturbations radioélectriques nuisibles à d’autres utilisateurs, le type d’antenne et son gain doivent être choisis de manière à ce que la puissance isotrope rayonnée équivalente (P.I.R.E.) n’excède pas les valeurs nécessaires pour obtenir une communication convenable. 190-01115-01 G3X/G3X Touch Installation Manual Rev. AA Page iv...
Page 7 Online auction conﬁrmations are not accepted for warranty verification. To obtain warranty service, an original or copy of the sales receipt from the original retailer is required. Garmin will not replace missing components from any package purchased through an online auction.
Page 8: Table Of Contents
PARAGRAPH PAGE Section 1 Inventory of Materials ..............1-1 1.1 Unpacking Unit........................ 1-1 1.2 Required Garmin Equipment ................... 1-1 1.3 Optional Garmin LRUs....................1-13 1.4 Required non-Garmin Equipment.................. 1-14 1.5 Optional Garmin Equipment (non-LRU)............... 1-16 1.6 Optional non-Garmin Equipment .................. 1-16 1.7 Optional 3rd Party Sensors/LRUs..................
Page 9 10.2 Equipment Available ....................10-1 10.3 General Specifications ....................10-2 10.4 Unit Installation ......................10-2 10.5 Unit Calibration ......................10-2 10.6 Unit Operation ......................10-2 10.7 Outline and Installation Drawings ................10-3 190-01115-01 G3X/G3X Touch Installation Manual Rev. AA Page vii...
Page 10 15.7 Outline and Installation Drawings ................15-15 Section 16 GSU 25/25B (AHRS/Air Data Sensor Unit) Installation ....16-1 16.1 Equipment Description ....................16-1 16.2 General Specifications ....................16-3 16.3 Required Equipment ....................16-3 190-01115-01 G3X/G3X Touch Installation Manual Rev. AA Page viii...
Page 11 19.7 Mounting, Wiring, and Power Checks................. 19-8 19.8 Outline and Installation Drawings ................19-10 Section 20 GPS/XM Antenna Installation ............20-1 20.1 Non-Garmin Antennas ....................20-1 20.2 Garmin Antennas ......................20-2 20.3 Antenna Mounting Considerations ................20-4 20.4 Teardrop Footprint Antenna Installation (GA 35, GA 55, and GA 56)....... 20-9 20.5 ARINC 743 Footprint Antenna Installation (GA 36, GA 37, GA 55A, GA 57X) ..
Page 12 23.15 GTR 20 (VHF Communications Radio) ..............23-71 23.16 GTX 23 (Mode S Transponder)................23-76 Section 24 G3X w/GSU 25 and/or GAD 29 Interconnect Drawings ....24-1 24.1 Core Interconnect Drawings w/GSU 25 and/or GAD 29 ..........24-1 24.2 External Interconnect Drawings w/GSU 25 ..............24-9 Section 25 G3X w/GSU 73 Interconnect Drawings ........25-1...
Page 13 31.4 Configuration Pages..................... 31-5 31.5 Garmin Database Updates ..................31-135 31.6 SiriusXM® Activation Instructions (GDU 375 only) ..........31-139 31.7 External Interface Configuration (Garmin units only) ..........31-140 31.8 GDU Splash Screen ....................31-143 31.9 Checklist Editor ....................... 31-143 Section 32 GDU 45X/46X Configuration and Post Installation Checkout ..32-1 32.1 Recommended Test Equipment ...................
Page 14 C.3 GDU 37X ........................C-1 C.4 GDU 45X/46X ........................C-2 C.5 GEA 24..........................C-2 C.6 GMC 305/307........................C-2 C.7 GMU 22 ..........................C-3 C.8 GSA 28..........................C-3 C.9 GSU 25..........................C-3 C.10 GSU 73..........................C-5 C.11 GTP 59 ..........................C-6 C.12 GTR 20/200........................C-7 190-01115-01 G3X/G3X Touch Installation Manual Rev. AA Page xii...
Page 15: Inventory Of Materials
All materials that are required/optional for the installation of the G3X are listed in this section (as such, some of the information in this section is repeated in following sections).
Page 16 Table 1-2 through Table 1-9 list the available core G3X LRUs for GDU 37X systems. The G3X LRU Kit (Table 1-2) is for G3X installations using the GSU 73, the kits in Table 1-3 through Table 1-9 are for G3X installations using the GSU 25/25B.
Page 17 GMU 22 Magnetometer, Unit Only 010-01196-00 011-03269-00 GSU 25 ADAHRS, Unit Only 010-01071-00 011-02929-00 GTP 59 OAT Probe Kit 011-00978-00 011-00978-00 Config Module w/Sockets, Jackscrew (for PFD1) 011-00979-22 011-00979-22 190-01115-01 G3X/G3X Touch Installation Manual - Inventory of Materials Rev. AA Page 1-3...
Page 18 011-01921-00 GDU 37X Nut Plate 115-01054-00 SD Card, Dummy 145-00561-00 Important Safety and Product Information 190-00720-50 GDU 37X Quick Reference Guide 190-01055-00 Jeppesen Free Single Update 190-10003-03 190-01115-01 G3X/G3X Touch Installation Manual - Inventory of Materials Rev. AA Page 1-4...
Page 19 1.2.3 Garmin LRU (Line Replaceable Unit) List for GDU 45X systems Table 1-11 through Table 1-19 list the available core G3X LRUs for GDU 45X systems (Table 1-16, Table 1-18, and Table 1-19 are mixed GDU 45X/46X systems). A GDU 45X Installation Kit...
Page 20 GEA 24 EIS, Unit Only 010-01042-00 011-02848-00 GMU 22 Magnetometer, Unit Only 010-01196-00 011-03269-00 GTP 59 OAT Probe Kit 011-00978-00 011-00978-00 Configuration Module w/Sockets, Jackscrew, 010-12253-00 011-03702-00 Temp, Connext 190-01115-01 G3X/G3X Touch Installation Manual - Inventory of Materials Rev. AA Page 1-6...
Page 21 GEA 24 EIS, Unit Only 010-01042-00 011-02848-00 GMU 22 Magnetometer, Unit Only 010-01196-00 011-03269-00 GTP 59 OAT Probe Kit 011-00978-00 011-00978-00 Configuration Module w/Sockets, Jackscrew, 010-12253-00 011-03702-00 Temp, Connext 190-01115-01 G3X/G3X Touch Installation Manual - Inventory of Materials Rev. AA Page 1-7...
Page 22 Table 1-20 Contents of GDU 45X Installation Kit (010-12150-01) Item Part Number Quantity GDU 4XX Connector Kit 011-01921-10 GDU 45X Nut Plate 115-01725-00 Panel Mounting Machine Screw, 0.550” Black 211-00169-01 190-01115-01 G3X/G3X Touch Installation Manual - Inventory of Materials Rev. AA Page 1-8...
Page 23 1.2.4 Garmin LRU (Line Replaceable Unit) List for GDU 46X systems Table 1-21 through Table 1-26 list the available core G3X LRUs for GDU 46X systems (Table 1-16, Table 1-18, and Table 1-19 are mixed GDU 45X/46X systems). A GDU 46X Installation Kit...
Page 24 GEA 24 EIS, Unit Only 010-01042-00 011-02848-00 GMU 22 Magnetometer, Unit Only 010-01196-00 011-03269-00 GTP 59 OAT Probe Kit 011-00978-00 011-00978-00 Configuration Module w/Sockets, Jackscrew, 010-12253-00 011-03702-00 Temp, Connext 190-01115-01 G3X/G3X Touch Installation Manual - Inventory of Materials Rev. AA Page 1-10...
Page 25 211-00169-01 1.2.5 Garmin LRU Installation Kits The G3X w/GSU 73 Installation Kit contains the items listed in Table 1-28 which are required for the installation of the G3X. NOTE The GDU 37X is not included in either the G3X w/GSU 73 Installation Kit (K10-00017-00) or the G3X w/GSU 73 LRU Kit (K10-00016-00).
Page 26 Garmin GPS and/or XM Antennas 1.2.6 GPS/XM Antenna(s) A Garmin or non-Garmin GPS antenna is required for a G3X installation. A Garmin or non-Garmin XM antenna is required for G3X installations using SiriusXM® weather. See Section 20 for required materials for antenna installation including mounting brackets, doubler plates, rivets, hardware, cables, connectors, and sealant.
Page 27: Optional Garmin Lrus
1.3 Optional Garmin LRUs Table 1-31 lists optional Garmin LRUs that can be installed with the G3X system. If any of these LRUs are to be used in this installation, verify that all required installation materials such as connector kits have been acquired.
Page 28: Required Non-Garmin Equipment
1.4.2 Contact and Crimp Tools Table 1-32 lists recommended crimp tools used to build the wiring harnesses for the G3X LRUs, other equivalent tooling may also be used. Table 1-32 Pin Contact and Crimp Tools Part Numbers...
Page 29 SD Card An SD Card is required to be used as a DataCard. Garmin recommends a 2 GB SanDisk® brand SD card for GDU 37X units, and an 8 GB SanDisk® brand SD card for GDU 45X/46X units. SDXC cards are not supported.
Page 30: Optional Garmin Equipment (Non-Lru)
Antenna Brackets/Doubler Plates Section 20 for detailed information. 1.5.3 Silicon Fusion Tape Garmin Part Number 249-00114-00 or similar, used to wrap the wiring/cable bundles. 1.6 Optional non-Garmin Equipment 1.6.1 Engine/Airframe Sensors Section 21.1 for a list of compatible sensors, and Section 21.3...
Page 31: Installation Preparation
The system combines primary flight instrumentation, aircraft systems instrumentation, and navigational information, all displayed on one, two, or three color screens. The G3X system is composed of several sub-units or Line Replaceable Units (LRUs). LRUs have a modular design and can be installed directly behind the instrument panel (or mounted to the panel in the case of a GDU 37X/45X/46X) or in a separate avionics bay if desired.
Page 32: System Architecture
GDU 37X and GDU 45X/46X displays simultaneously. In a G3X system, only one attitude/air data unit (GSU 25 or GSU 73) is required, but up three may be used. Up to two standby flight displays (G5) may also be connected to provide additional sources of redundant attitude/air data.
Page 33 (Optional) (Optional*) Figure 2-2 G3X Interconnect Example (GDU 45X/46X) NOTE Please refer to the G3X Touch Pilot’s Guide (190-01754-00) for guidance in using Connext Bluetooth connections to Garmin Pilot device(s). 190-01115-01 G3X/G3X Touch Installation Manual - Installation Preparation Rev. AA...
Page 34: Electrical Considerations
LRU before handling the LRU itself. 2.2.1 Power Specifications All G3X LRUs are capable of operating at either 14 or 28 VDC (except the GAD 27 which is 14 VDC only, and the GAP 26, see Note in Section 5). Table 2-1 and...
Page 35 28 Vdc 0.80 Amp (max) *Garmin recommends using Mod 1 level GSU 73 in aircraft that use a +28 V supply voltage and intend to monitor current on high voltage devices such as the aircraft alternator. **The specified current draw is measured with the display backlight set to 100%...
Page 36: Wiring/Cabling Considerations
3.75 Amp, Maximum, 90% modulated into 3:1 VSWR and 22 V power input voltage *Garmin recommends using Mod 1 level GSU 73 in aircraft that use a +28 V supply voltage and intend to monitor current on high voltage devices such as the aircraft alternator.
Page 37 The installer shall supply and fabricate all of the cables. Required connectors, etc. are provided with the G3X w/GSU 73 Installation Kit (K10-00017-00). Electrical connections for the GMU 22 are made through a round 9-pin connector, and are made through D subminiature connectors for all other LRUs.
Page 38 6-3). 2.3.1.2 Configuration Module The G3X system is designed to store configuration and calibration data in multiple locations to retain the configuration of the system during maintenance. A configuration module (Figure 2-3 and Figure 2-4) is installed in the connector backshell of the PFD1 display to store important configuration data. Only the PFD1 display uses a configuration module;...
Page 39 CAN bus from end to end should be 20 meters (66 feet) or less. At each of the two extreme ends of the CAN bus, a 120 Ω resistor is installed to “terminate” the bus. In the G3X system, termination resistors are...
Page 40 The layout of the CAN bus must be a single linear backbone with exactly two distinct end points (Figure 2-8). Other layouts such as “star” or “Y” arrangements must be avoided. Similarly, hub devices must not be used with the G3X CAN bus. (Figure 2-9) LINEAR CAN BACKBONE, DAISY-CHAINED CONNECTIONS WITH SHORT STUB NODE LENGTHS.
Page 41 At each of the two extreme ends of the CAN bus backbone, a 120 Ω resistor is installed to terminate the bus. In the G3X system, separate resistors are not required. Instead, termination resistors are provided either within the LRUs themselves, or via termination adapters that plug into an LRU’s CAN connection.
Page 42 WHEN GTR 20/200 IS LOCATED AT END OF CAN BUS WHEN GTR 20/200 IS LOCATED AT END OF CAN BUS Figure 2-14 CAN Bus Termination for GTR 20/200 190-01115-01 G3X/G3X Touch Installation Manual - Installation Preparation Rev. AA Page 2-12...
Page 43 INCORRECT - ONE OF THE TERMINATIONS IS NOT AT END OF BACKBONE IN CORRECT - ONLY ONE END OF BACKBONE IS TERMINATED Figure 2-16 Incorrect CAN Bus Termination Examples 190-01115-01 G3X/G3X Touch Installation Manual - Installation Preparation Rev. AA Page 2-13...
Page 44 2.3.1.3.4 CAN Bus LRU Removal Guidelines The following should be considered when removing an LRU from the ends of G3X CAN network: • GEA 24, GSU 25, GAD 29, GPS 20A, G5, or other devices that uses the 9-pin CAN termination adapter: The CAN bus will remain terminated as long as the CAN termination adapter is left connected.
Page 45 Ground potential differences between devices on the CAN bus can cause communication errors. Ground devices to a common ground bus, not to the airframe or to multiple grounding buses. 190-01115-01 G3X/G3X Touch Installation Manual - Installation Preparation Rev. AA Page 2-15...
Page 46 2. Trim the coaxial cable to the desired length and install the BNC or TNC (per Figure 2-18) connector. If provided, follow the connector manufacturer’s instructions for cable preparation. Figure 2-18 TNC Connector Installation 190-01115-01 G3X/G3X Touch Installation Manual - Installation Preparation Rev. AA Page 2-16...
Page 47: Mechanical Considerations
2.4 Mechanical Considerations This section presents all information required for planning the physical layout of the G3X installation. 2.4.1 Physical Specifications Use Table 2-4 to determine panel requirements. All width, height, and depth measurements are taken with unit rack (if applicable) and connectors. LRU dimensions are listed in each LRU section.
Page 48 4.0 inches 0.48 lbs GSU 25 2.5 inches (63.5 mm) 0.68 lbs, (0.310 kg) 2.61 inches (101.6 mm) (0.217 kg) (ADAHRS) (66.2 mm) w/conn *weight includes nut plate 190-01115-01 G3X/G3X Touch Installation Manual - Installation Preparation Rev. AA Page 2-18...
Page 49 1.7 inches 2.0 lbs GTX 45R (unit, mount, and Backplate, and (160 mm) (43 mm) (0.91 kg) connector backshells) Connectors 2.9 lbs (1.32 kg) *weight includes nut plate 190-01115-01 G3X/G3X Touch Installation Manual - Installation Preparation Rev. AA Page 2-19...
Page 50: Lru/Sensor Installation Information
Cooling Requirements While no forced cooling air is required for the G3X system, it is highly recommended that the air behind the panel be kept moving (by ventilation or a fan). Units tightly packed in the avionics stack heat each other through radiation, convection, and sometimes by direct conduction.
Page 51: Gad 27 (Flaps/Lights/Trim Controller) Installation
Middle position in the downwind. Similarly, after turning final, the pilot can bump the switch downward again and the GAD 27 will automatically extend the flaps to the full down position. Since the GAD 27 receives airspeed from the G3X Touch system, it can also prevent flap extension when the 190-01115-01 G3X/G3X Touch Installation Manual - GAD 27 Installation Rev.
Page 52 Provides a 12V power bus output to keep essential avionics online during engine start when battery voltage drops. 3.1.1 Status LED The GAD 27 has an LED on its outer case that indicates its current status. See Section 33.1.1 for details. 190-01115-01 G3X/G3X Touch Installation Manual - GAD 27 Installation Rev. AA Page 3-2...
Page 53: Equipment Available
1. Mount the unit to a suitable mounting location using (4) #10-32 pan or hex head screws. 2. Assemble the connector backshells and wiring harness. 3. Connect backshell connectors. 190-01115-01 G3X/G3X Touch Installation Manual - GAD 27 Installation Rev. AA Page 3-3...
Page 54: Outline And Installation Drawings
CENTER OF GRAVITY .040 1.02 .100 2.54 3.215 81.66 TYPICAL THICKNESS 3.780 96.01 CENTER OF GRAVITY BENEATH FASTENER HEAD 4.687 119.05 5.204 132.18 Figure 3-2 GAD 27 Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GAD 27 Installation Rev. AA Page 3-4...
Page 55 GAD 27 CONNECTOR KIT 011-01855-01 011-03877-00 330-00625-15 GAD 27 011-03876-00 J272 TB273 J271 GAD 27 CONNECTOR KIT 011-03877-00 330-00625-50 P271 011-01855-04 Figure 3-3 GAD 27 Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GAD 27 Installation Rev. AA Page 3-5...
Page 56: Gad 29 (Arinc 429 Adapter) Installation
4.1 Equipment Description The GAD 29 allows the G3X system to interface to IFR navigators such as the GNS and GTN series. The GAD 29 has a 25 pin D-sub connector and a 9 pin D-sub connector. These connectors will provide the following functionality: •...
Page 57: Equipment Available
1. Mount the unit to a suitable mounting location using (4) #10-32 pan or hex head screws. 2. Assemble the connector backshells and wiring harness. 3. Connect CAN terminator to unit if required (Section 2.3.1.3.3). 4. Connect backshell connectors. 190-01115-01 G3X/G3X Touch Installation Manual - GAD 29 Installation Rev. AA Page 4-2...
Page 58: Outline And Installation Drawings
4.6 Outline and Installation Drawings Figure 4-2 GAD 29 Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GAD 29 Installation Rev. AA Page 4-3...
Page 59 Figure 4-3 GAD 29 Installation Drawing (no CAN terminator) 190-01115-01 G3X/G3X Touch Installation Manual - GAD 29 Installation Rev. AA Page 4-4...
Page 60 Figure 4-4 GAD 29 Installation Drawing (with CAN terminator) 190-01115-01 G3X/G3X Touch Installation Manual - GAD 29 Installation Rev. AA Page 4-5...
Page 61: Gap 26 (Pitot/Aoa Probe) Installation
The function of the GAP 26 is to provide pitot and AOA pressures to the GSU 25 for the purpose of displaying airspeed and AOA to the pilot as part of the G3X system. The GAP 26 does not provide a static pressure source to the GSU 25.
Page 62: Equipment Available
• Garmin recommends that the GAP 26 not be used on aircraft where the ship static pressure port is located under the wing (due to the likelihood that the AOA measurement will be significantly...
Page 63 “banded” (Figure 5-3) to help identify individual heaters. These heaters can be connected to a power source as shown in Figure 5-4 and Figure 5-5. “Banded” Wire Figure 5-3 GAP 26 Banded Wire 190-01115-01 G3X/G3X Touch Installation Manual - GAP 26 Installation Rev. AA Page 5-3...
Page 64 3. CONNECT BANDED WIRES WITH INSULATED MS25181 22-18 AWG BUTT SPLICE CONNECTOR OR EQUIVALENT. BANDED WIRES MAY BE SHORTENED IF DESIRED. Figure 5-5 GAP 26, 28V Installation Configuration (010-01074-10 only) 190-01115-01 G3X/G3X Touch Installation Manual - GAP 26 Installation Rev. AA Page 5-4...
Page 65 RED WIRE (BARE) BLACK WIRE (BARE) BLACK WIRE (BARE) BLACK WIRE (BARE) BLACK WIRE (BARE) Figure 5-6 011-02964-20 Probe Wiring Figure 5-7 011-02964-20 Probe to Control Box Connectors 190-01115-01 G3X/G3X Touch Installation Manual - GAP 26 Installation Rev. AA Page 5-5...
Page 66 This loss is not to exceed 10 knots/min. While some GAP 26 probes will pass a test of this type, some may not. Garmin has determined that a leak rate of 250 knots/min or less is allowable and still ensures proper functionality.
Page 67: Outline And Installation Drawings
5.6 Outline and Installation Drawings Figure 5-8 GAP 26 Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GAP 26 Installation Rev. AA Page 5-7...
Page 68 Figure 5-9 GAP 26 Heater Control Box (used with -20 unit only) 190-01115-01 G3X/G3X Touch Installation Manual - GAP 26 Installation Rev. AA Page 5-8...
Page 69: Gdu 37X (Display Unit) Installation
#6 captured screws with a 3/32” hex head. The GDU 37X is available in two models, GDU 370 and GDU 375. The GDU 370 is a Garmin Display Unit with a VFR ®...
Page 70: General Specifications
Interface Summary NOTE A G3X system installation can use either GDU 37X or GDU 45X/46X displays, but a G3X system installation cannot use GDU 37X and GDU 45X/46X displays. The GDU 37X use CAN and RS-232 communications interfaces. The GDU 37X can be configured to...
Page 71: Unit Installation
A 3/32” hex drive tool is required to secure the GDU 37X to the panel as described in Section 6.6.1 Unit Installation. Figure 6-2 GDU 37X Mounting Accessories 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Installation Rev. AA Page 6-3...
Page 72: Unit Installation
Section 23.3 for pinouts. Connector kits include backshell assemblies. Garmin’s backshell connectors give the installer the ability to quickly and easily terminate shield grounds at the backshell housing. The instructions needed to assemble the backshell connector w/Shield Block grounding system are located in...
Page 73 5.57 in [141.4 mm] For corner holes, center punch and drill (#36) / tap (6/32) to create threaded holes drill out with 25 drill bit and use Garmin nut-plate P/N 115-01054-00 Figure 6-4 GDU 37X Panel Cutout Template 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Installation Rev.
Page 74: Outline And Installation Drawings
Outline and Installation Drawings Figure 6-5 GDU 37X Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Installation Rev. AA Page 6-6...
Page 75 Figure 6-6 GDU 37X Assembly/Panel Cutout Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Installation Rev. AA Page 6-7...
Page 76: Gdu 45X (Display Unit) Installation
The GDU 45X is mounted flush to the aircraft instrument panel using four #6 screws. The GDU 45X is available in two models, GDU 450 and GDU 455. The GDU 450 is a Garmin Display Unit with a GPS ®...
Page 77: General Specifications
7.1.2 Interface Summary NOTE A G3X system installation can use either GDU 37X or GDU 45X/46X displays, but a G3X system installation cannot use GDU 37X and GDU 45X/46X displays. NOTE Please refer to the G3X Touch Pilot’s Guide (190-01754-00) for guidance in using Connext Bluetooth connections to Garmin Pilot device(s).
Page 78: Unit Installation
Section 23.4 for pinouts. Connector kits include backshell assemblies. Garmin’s backshell connectors give the installer the ability to quickly and easily terminate shield grounds at the backshell housing. The instructions needed to assemble the backshell connector w/Shield Block grounding system are located in...
Page 79: Antennas
The GDU 45X Nut Plate (115-01725-00) can be used as a template when marking the panel for cutout (Figure 6-6) (dimensions on the figure are to verify accuracy of printout only). See Figure 7-5 complete cutout dimensions. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 45X Installation Rev. AA Page 7-4...
Page 80: Outline And Installation Drawings
Outline and Installation Drawings Figure 7-3 GDU 45X Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GDU 45X Installation Rev. AA Page 7-5...
Page 81 Figure 7-4 GDU 45X Assembly Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GDU 45X Installation Rev. AA Page 7-6...
Page 82 Figure 7-5 GDU 45X Panel Cutout Drawing (not to scale) 190-01115-01 G3X/G3X Touch Installation Manual - GDU 45X Installation Rev. AA Page 7-7...
Page 83 5.39 in (#36) / tap (6/32) to create threaded holes [137.0 mm] [137.0 mm] drill out with #25 drill bit and use Garmin nut-plate P/N 115-01725-00. The outline in this drawing is identical to the outline of the actual bezel.
Page 84: Gdu 46X (Display Unit) Installation
The GDU 46X is mounted flush to the aircraft instrument panel using four #6 screws. The GDU 46X is available in two models, GDU 460 and GDU 465. The GDU 460 is a Garmin Display Unit with a GPS ®...
Page 85: General Specifications
8.1.2 Interface Summary NOTE A G3X system installation can use either GDU 37X or GDU 4XX displays, but a G3X system installation cannot use GDU 37X and GDU 4XX displays. NOTE Please refer to the G3X Touch Pilot’s Guide (190-01754-00) for guidance in using Connext Bluetooth connections to Garmin Pilot device(s).
Page 86: Unit Installation
Section 23.4 for pinouts. Connector kits include backshell assemblies. Garmin’s backshell connectors give the installer the ability to quickly and easily terminate shield grounds at the backshell housing. The instructions needed to assemble the backshell connector w/Shield Block grounding system are located in...
Page 87: Antennas
The GDU 46X Nut Plate (115-01725-01) can be used as a template when marking the panel for cutout (Figure 7-6) (dimensions on the figure are to verify accuracy of printout only). See Figure 8-5 complete cutout dimensions. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 46X Installation Rev. AA Page 8-4...
Page 88: Outline And Installation Drawings
Outline and Installation Drawings Figure 8-3 GDU 46X Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GDU 46X Installation Rev. AA Page 8-5...
Page 89 Figure 8-4 GDU 46X Assembly Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GDU 46X Installation Rev. AA Page 8-6...
Page 90 Figure 8-5 GDU 46X Panel Cutout Drawing (not to scale) 190-01115-01 G3X/G3X Touch Installation Manual - GDU 46X Installation Rev. AA Page 8-7...
Page 91 (#36) / tap (6/32) to create threaded holes Cut out panel to inside line 7.29 in 7.29 in drill out with #25 drill bit and use Garmin 185.10 mm 185.10 mm nut-plate P/N 115-01725-01. The outline in this drawing is identical to the outline of the actual bezel.
Page 92: Gea 24 (Eis Interface) Installation
The GEA 24 is an input/output system used to monitor and power engine and airframe sensors for the Experimental – Amateur Built (E-AB) and Light Sport Aircraft (LSA) markets. In a G3X Touch system, two GEA 24 units may be installed to monitor and display engine data for twin-engine aircraft, or single- engine aircraft with more than six cylinders.
Page 93: Equipment Available
Conn, Rcpt, D-Sub, Crimp Socket, Commercial, 37 CKT 330-00625-37 Conn, Rcpt, D-Sub, Crimp Socket, Commercial, 50 CKT 330-00625-50 Contact, Socket, Military Crimp, Size 20 336-00022-02 Contact ,Pin, Military Crimp, Size 20 336-00024-00 190-01115-01 G3X/G3X Touch Installation Manual - GEA 24 Installation Rev. AA Page 9-2...
Page 94: General Specifications
Section 23.5 for pinouts. The GEA 24 connects to other LRUs in the G3X system using the CAN bus. To provide an optional redundant path for engine data, a secondary RS-232 connection to a single GDU display is also supported.
Page 95: Outline And Installation Drawings
Outline and Installation Drawings Figure 9-2 GEA 24 Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GEA 24 Installation Rev. AA Page 9-4...
Page 96 Figure 9-3 GEA 24 Assembly Drawing (no CAN terminator) 190-01115-01 G3X/G3X Touch Installation Manual - GEA 24 Installation Rev. AA Page 9-5...
Page 97 Figure 9-4 GEA 24 Assembly Drawing (with CAN terminator) 190-01115-01 G3X/G3X Touch Installation Manual - GEA 24 Installation Rev. AA Page 9-6...
Page 98: Section 10 Gi 260 (Aoa Indicator) Installation
The GI 260 Socket Mount (011-03562-00) is included with the unit. The Socket Mount is secured using (3) #6-32 100º flat head screws that are to be supplied by the installer. 190-01115-01 G3X/G3X Touch Installation Manual - GI 260 Installation Rev. AA Page 10-1...
Page 99: General Specifications
Stall Warning (red) or Caution Alert (yellow) conditions have returned to a Minimum Visible (green) condition. The mute operation is then reset, and audio is unmuted. Stall Warning Caution Alert Approach Target AOA Minimum Visible AOA Figure 10-2 GI 260 Display 190-01115-01 G3X/G3X Touch Installation Manual - GI 260 Installation Rev. AA Page 10-2...
Page 100: Outline And Installation Drawings
10.7 Outline and Installation Drawings Figure 10-3 GI 260 Outline/Assembly Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GI 260 Installation Rev. AA Page 10-3...
Page 101: Section 11 Gmc 305 (Afcs Mode Controller) Installation
The GMC 305 is a Garmin Automatic Flight Control System (AFCS) Mode Controller that can be used in a G3X installation. The GMC 305 provides a user interface for the autopilot function of the G3X system. The GMC 305 mounts flush to the aircraft instrument panel using four threaded cap screws.
Page 102: General Specifications
24-1.6). The selected GDU RS-232 channel must be configured for “Garmin Instrument Data”. If the installation includes a Garmin integrated autopilot using GSA 28 servos, the GMC 305 installation also includes an RS-232 connection to the GSA 28 roll servo (Figure 24-1.6).
Page 103: Outline And Installation Drawings
11.5 Outline and Installation Drawings Figure 11-2 GMC 305 Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GMC 305 Installation Rev. AA Page 11-3...
Page 104 Figure 11-3 GMC 305 Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GMC 305 Installation Rev. AA Page 11-4...
Page 105 Figure 11-4 GMC 305 Cutout Drawing (Not to Scale) 190-01115-01 G3X/G3X Touch Installation Manual - GMC 305 Installation Rev. AA Page 11-5...
Page 106 NOTES: DIMENSIONS: INCHES[mm]. METRIC VALUES ARE FOR REFERENCE ONLY. DIMENSIONS ARE NOMINAL AND TOLERANCES ARE NOT IMPLIED UNLESS SPECIFICALLY STATED. Figure 11-5 GMC 305 Panel Cutout Template 190-01115-01 G3X/G3X Touch Installation Manual - GMC 305 Installation Rev. AA Page 11-6...
Page 107: Section 12 Gmc 307 (Afcs Mode Controller) Installation
The GMC 307 is a Garmin Automatic Flight Control System (AFCS) Mode Controller that can be used in a G3X installation. The GMC 307 provides a user interface for the autopilot function of the G3X system. The GMC 307 mounts flush to the aircraft instrument panel using two pawl latches.
Page 108: General Specifications
24-1.6). The selected GDU RS-232 channel must be configured for “Garmin Instrument Data”. If the installation includes a Garmin integrated autopilot using GSA 28 servos, the GMC 307 installation also includes an RS-232 connection to the GSA 28 roll servo (Figure 24-1.6).
Page 109: Outline And Installation Drawings
12.5 Outline and Installation Drawings Figure 12-3 GMC 307 Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GMC 307 Installation Rev. AA Page 12-3...
Page 110 Figure 12-4 GMC 307 Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GMC 307 Installation Rev. AA Page 12-4...
Page 111 Figure 12-5 GMC 307 Cutout Drawing (Not to Scale) 190-01115-01 G3X/G3X Touch Installation Manual - GMC 307 Installation Rev. AA Page 12-5...
Page 112 1. DIMENSIONS: INCHES [mm]. METRIC VALUES ARE FOR REFERENCE ONLY. 2. TOLERANCES: INCH .XX ±.02 .X ±0.5 .XXX ±.010 .XX ±0.25 Figure 12-6 GMC 307 Panel Cutout Template 190-01115-01 G3X/G3X Touch Installation Manual - GMC 307 Installation Rev. AA Page 12-6...
Page 113: Section 13 Gmu 22 (Magnetometer) Installation
Figure 13-1 GMU 22 Unit View 13.1 Equipment Description The Garmin GMU 22 Magnetometer is a remote mounted device that interfaces with a Garmin ADAHRS (GSU 25/73) to provide flight attitude and heading data for flight instrumentation. An Attitude and Heading Reference System combines the functions of a Vertical Gyro and a Directional Gyro to provide measurement of Roll, Pitch, and Heading angles.
Page 114: Equipment Available
If the requirements listed in Table 13-4 cannot be met, a magnetometer interference test must be performed to ensure proper operation of the G3X system. Refer to the AHRS/ Magnetometer Installation Considerations document (190-01051-00) available from the Garmin website (www.garmin.com...
Page 115 GMU 22 units for other GSU 25 ADAHRS units is optional. An ADAHRS without a GMU 22 connected will use magnetometer data supplied by other ADAHRS as long as they are both communicating via CAN. 190-01115-01 G3X/G3X Touch Installation Manual - GMU 22 Installation Rev. AA Page 13-3...
Page 116 M27500-22TE3T14 2-Conductor Cable M27500-22TE2T14 *Included in G3X w/GSU 73 Installation Kit (K10-00017-00) Table 13-6 lists material in the GMU 22 connector kit and the associated reference number, as shown in Figure 13-7. The GMU 22 magnetometer has an attached pigtail with male polarity. The harness connector for the GMU 22 has female polarity.
Page 117: Mounting Instructions
If the GMU 22 is ever removed, the anti-rotation properties of the mounting screws must be restored. This may be done by replacing the screws with new Garmin part number 211-60037-08. If original screws must be re-used, coat screw threads with Loctite 242 (blue) thread-locking compound, Garmin part number 291-00023-02, or equivalent.
Page 118: Outline And Installation Drawings
13.5 Outline and Installation Drawings Figure 13-3 GMU 22 Mounting Rack (115-00481-00) 190-01115-01 G3X/G3X Touch Installation Manual - GMU 22 Installation Rev. AA Page 13-6...
Page 119 Figure 13-4 GMU 22 Mounting Rack (115-00481-10) 190-01115-01 G3X/G3X Touch Installation Manual - GMU 22 Installation Rev. AA Page 13-7...
Page 120 Figure 13-5 GMU 22 Top Mounted Installation 190-01115-01 G3X/G3X Touch Installation Manual - GMU 22 Installation Rev. AA Page 13-8...
Page 121 Figure 13-6 GMU 22 Bottom Mounted Installation 190-01115-01 G3X/G3X Touch Installation Manual - GMU 22 Installation Rev. AA Page 13-9...
Page 122 NOTE: 1. BUBBLE NUMBERS IN THIS DRAWING REFER TO REFERENCE NUMBERS LISTED IN TABLES 13-5 AND 13-6. Figure 13-7 GMU 22 Wiring Details 190-01115-01 G3X/G3X Touch Installation Manual - GMU 22 Installation Rev. AA Page 13-10...
Page 123: Section 14 Gps 20A (Waas Gps Position Source) Installation
The GPS 20A provides an ADS-B Out position source. The WAAS/SBAS position information is compatible with a wide range of 1090 ES transponders to meet the position requirements of 14 CFR 91.227. The GPS 20A also provides position data to all G3X and G3X Touch displays. NOTE...
Page 124: Statement Of Compliance (Per Ac 90-114A Chg1)
TSO-C166b and installed in accordance with the instructions in this document. Example transponders which may be used in combination with the GPS 20A for FAR 91.227 compliance are the Garmin GTX 330ES, GTX 23ES, GTX 35R, GTX 45R, GTX 345/345R, and GTX 335/335R.
Page 125: General Specifications
For installations that require less than 6.5 ft of cable, the cable may be coiled, taking into account the minimum bend radius of the cable. 190-01115-01 G3X/G3X Touch Installation Manual - GPS 20A Installation Rev. AA Page 14-3...
Page 126: Outline And Installation Drawings
14.9 Outline and Installation Drawings Figure 14-2 GPS 20A Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GPS 20A Installation Rev. AA Page 14-4...
Page 127 Figure 14-3 GPS 20A Installation Drawing (no CAN terminator) 190-01115-01 G3X/G3X Touch Installation Manual - GPS 20A Installation Rev. AA Page 14-5...
Page 128 Figure 14-4 GPS 20A Installation Drawing (with CAN terminator) 190-01115-01 G3X/G3X Touch Installation Manual - GPS 20A Installation Rev. AA Page 14-6...
Page 129: Section 15 Gsa 28 (Autopilot Servo) Installation
The GSA 28 servo is an autopilot servo intended for use in non FAA certified aircraft, including light sport and home-built aircraft. The servo is intended to be used as part of the G3X system. The function of the GSA 28 is to drive a flight-control axis (pitch, roll) of the aircraft. The servo can also be installed in the rudder control system to provide yaw damping.
Page 130: Equipment Available
0.20 Amp (typical), 1.00 Amp (max) 14 Vdc with Auto-trim 0.36 Amp (typical), 2.80 Amp (max) 15.3.2 Torque Specifications Table 15-4 GSA 28 Torque Specifications Characteristic Specification Maximum Rated Torque 60 in-lbs 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-2...
Page 131: Required Equipment
Cont,Sckt,Mil Crp,Size 20,20-24 AWG,RoHS 336-00022-02 15.4.1 Additional Equipment Required • Cables: The installer will fabricate and supply all system cables. • Mounting hardware is included in the available mounting kits. 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-3...
Page 132: Unit Installation
Section 23.10 for pinouts. Connector kits include backshell assemblies. Garmin’s backshell connectors give the installer the ability to quickly and easily terminate shield grounds at the backshell housing. The instructions needed to install the Jackscrew Backshell are located in Section 15.5.1 Pinouts...
Page 133 This could result in serious injury or death. Please be sure this is well understood prior to flying with the GSA 28 servo. 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-5...
Page 134 (e.g. pilot and co-pilot), a GAD 27 or other third-party device capable of mixing multiple trim switches into one is required. See Figure 24-1.7 for additional details. 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-6...
Page 135 GSA 28 needs to be removed without losing functionality of the CAN bus and trim motors. Figure 15-3 Wiring Diagram For GSA 28 Removal Adapter 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-7...
Page 136 15.5.2.6 GSA 28 Mounting Kits Garmin currently provides the mounting kits listed in Table 15-8 for the GSA 28 Servo: Table 15-8 Mounting Kits Mounting Install Manual Garmin P/N Description Bracket Figures Included 011-02952-00 Sub-Assy, GSA 28 Mounting Kit, Generic, Push-Pull 15-8.7...
Page 137 .141 1.25 .492±.117 THREAD USABLE ENGAMENT THREAD 10-32 UNF-3A AN315-3R JAM NUT Figure 15-4 General Dimensions For Servo Push Rod And Rod End Bearings 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-9...
Page 138 When determining the length of the bridle cable to be ordered, be sure to allow for enough cable to make the required number of wraps around the capstan (see Figure 15-6). Figure 15-5 Bridle Cable 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-10...
Page 139 Garmin recommends using the cable arrangement (ball centered in capstan) shown in Figure 15-6 to avoid side-loading the servo center shaft. BOTH CABLES EXITING CAPSTAN IN SAME DIRECTION CABLE EXITING IN OPPOSITE DIRECTION ROTATE A MAXIMUM OF 150 EITHER DIRECTION FROM...
Page 140 See Section 15.5.2.2 on stop bracket kit for more details on mounting the stop bracket. 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-12...
Page 141 Garmin cannot validate the structural integrity of non-Garmin brackets. Mounting brackets provided in the Garmin GSA 28 mounting kits have been designed to withstand (and have been tested to) repetitive stress cycles endured during loads generated by the GSA 28 and aircraft vibrations.
Page 142 Figure 15-7 Non-Garmin GSA 28 Bracket 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-14...
Page 143: Unit Wiring
Refer to the Section 24-1.6 interconnect drawing for connecting GSA 28 wiring. 15.7 Outline and Installation Drawings Refer to the following figures for GSA 28 installation guidance. 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-15...
Page 144 Figure 15-8.1 GSA 28 Outline/Installation Drawing 011-02927-00 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-16...
Page 145 Figure 15-8.2 GSA 28 Accessory Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-17...
Page 146 Figure 15-8.3 GSA 28 Crank Arm Attachments Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-18...
Page 147 Figure 15-8.4 GSA 28 with Capstan Kit and Cable Instructions (011-02952-02) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-19...
Page 148 Figure 15-8.5 GSA 28 Recommended Bracket Cutout Dimensions 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-20...
Page 149 Figure 15-8.6 GSA 28 Recommended Mounting Hardware 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-21...
Page 150 Figure 15-8.7 GSA 28 Generic, Push-Pull Mounting Kit (No Bracket) 011-02952-00 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-22...
Page 151 Figure 15-8.8 GSA 28 Generic, Push-Pull Mounting Kit w/Bracket 011-02952-01 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-23...
Page 152 Figure 15-9.1 GSA 28 RV-6 Roll Mounting Kit 011-02952-10 (page 1 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-24...
Page 153 Figure 15-9.1 GSA 28 RV-6 Roll Mounting Kit 011-02952-10 (page 2 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-25...
Page 154 Figure 15-9.1 GSA 28 RV-6 Roll Mounting Kit 011-02952-10 (page 3 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-26...
Page 155 Figure 15-10.1 GSA 28 RV-4/8 Pitch Mounting Kit 011-02952-11 (page 1 of 4) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-27...
Page 156 Figure 15-10.1 GSA 28 RV-4/8 Pitch Mounting Kit 011-02952-11 (page 2 of 4) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-28...
Page 157 Figure 15-10.1 GSA 28 RV-4/8 Pitch Mounting Kit 011-02952-11 (page 3 of 4) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-29...
Page 158 Figure 15-10.1 GSA 28 RV-4/8 Pitch Mounting Kit 011-02952-11 (page 4 of 4) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-30...
Page 159 Figure 15-11.1 GSA 28 RV-7/8/10 Roll Mounting Kit 011-02952-12 (page 1 of 2) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-31...
Page 160 Figure 15-11.1 GSA 28 RV-7/8/10 Roll Mounting Kit 011-02952-12 (page 2 of 2) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-32...
Page 161 Figure 15-12.1 GSA 28 RV-9 Roll Mounting Kit 011-02952-13 (page 1 of 2) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-33...
Page 162 Figure 15-12.1 GSA 28 RV-9 Roll Mounting Kit 011-02952-13 (page 2 of 2) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-34...
Page 163 Figure 15-13.1 GSA 28 RV-6/7/9 Mounting Kit 011-02952-14 (page 1 of 2) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-35...
Page 164 Figure 15-13.1 GSA 28 RV-6/7/9 Pitch Mounting Kit 011-02952-14 (page 2 of 2) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-36...
Page 165 Figure 15-14.1 GSA 28 RV-10 Pitch Mounting Kit 011-02952-15 (page 1 of 2) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-37...
Page 166 Figure 15-14.1 GSA 28 RV-10 Pitch Mounting Kit 011-02952-15 (page 2 of 2) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-38...
Page 167 Figure 15-15.1 GSA 28 RV-10 Yaw Mounting Kit 011-02952-16 (page 1 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-39...
Page 168 Figure 15-15.1 GSA 28 RV-10 Yaw Mounting Kit 011-02952-16 (page 2 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-40...
Page 169 Figure 15-15.1 GSA 28 RV-10 Yaw Mounting Kit 011-02952-16 (page 3 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - GSA 28 Installation Rev. AA Page 15-41...
Page 170: Section 16 Gsu 25/25B (Ahrs/Air Data Sensor Unit) Installation
GSU 25 Sensor Unit is not a TSO-certified product and has received no FAA approval or endorsement. The GSU 25 is intended to be used as a part of the G3X system and it is not suitable for installation in type- certificated aircraft.
Page 171 Figure 16-1 GSU 25 Unit View 16.1.1 Status LED The GSU 25 has an LED on the outer case that indicates current status. See Section 33.1.1 for details. 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-2...
Page 172: General Specifications
Air hoses and fittings to connect pitot air, static air, and AOA air to the GSU 25. The GSU 25 uses a female 1/8-27 ANPT fitting for each of these ports. Use appropriate aircraft fittings to connect to pitot, static, and AOA system lines (per Section 16.4.4). 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-3...
Page 173: Unit Installation
Section 23.12 for pinouts. The GSU 25 connects to other LRUs in the G3X system using the CAN bus. To provide an optional redundant path for attitude and air data, a secondary RS-232 connection to a single GDU display (typically PFD1) is also supported.
Page 174 Figure 16-2 AHRS Orientation Selection 16.4.3 Unit Mounting For final installation and assembly, refer to the outline and installation drawing Figure 16-4 Figure 16-5 of this manual. 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-5...
Page 175 5. Connect CAN terminator to unit if required (see Section 2.3.1.3.3). NOTE When mounting the GSU 25 to the airframe, it is important to ensure that fastening hardware is tight for proper unit operation. 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-6...
Page 176 Refer to part 43, Appendix E for approved practices while installing hoses and connections. 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-7...
Page 177 3. Use care to avoid getting fluids or particles anywhere within the pneumatic lines connected to the GSU 25. The installer must fabricate any additional mounting equipment needed. Use outline and installation drawings Figure 16-4 Figure 16-5 for reference. 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-8...
Page 178: Outline And Installation Drawings
16.5 Outline and Installation Drawings Figure 16-4 GSU 25 Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-9...
Page 179 Figure 16-5 GSU 25 Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-10...
Page 180 Figure 16-6 GSU 25 Orientation Drawings (page 1 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-11...
Page 181 Figure 16-6 GSU 25 Orientation Drawings (page 2 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-12...
Page 182 Figure 16-6 GSU 25 Orientation Drawings (page 3 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - GSU 25/25B Installation Rev. AA Page 16-13...
Page 183: Section 17 Gsu 73 (Sensor Unit) Installation
GSU 73 Sensor Unit is not a TSO-certified product and has received no FAA approval or endorsement. The GSU 73 is intended to be used as a part of the G3X system and it is not suitable for installation in type- certificated aircraft.
Page 184: General Specifications
BULLETIN PURPOSE OF MODIFICATION LEVEL NUMBER DATE Improved HSCM accuracy when using +28 V supply Improved backup capacitor circuit to increase backup time in certain under-voltage conditions 190-01115-01 G3X/G3X Touch Installation Manual - GSU 73 Installation Rev. AA Page 17-2...
Page 185: Required Equipment
011-01817-00* P731 Connector Kit, GSU 73 011-01818-00** P732 Connector Kit, GSU 73 011-01818-01** *Included in G3X w/GSU 73 LRU Kit (K10-00016-00) **Included in G3X w/GSU 73 Installation Kit (K10-00017-00) Table 17-2 Contents of P731 Connector Kit (011-01818-00)** Item Garmin P/N...
Page 186: Unit Installation
Connector kits include backshell assemblies. The backshell assembly houses the configuration module (P732 only) and a thermocouple reference junction (if applicable). Garmin’s backshell connectors give the installer the ability to quickly and easily terminate shield grounds at the backshell housing. The...
Page 187 3. Use care to avoid getting fluids or particles anywhere within the pitot and static lines connected to the GSU 73. The installer must fabricate any additional mounting equipment needed. Use outline and installation drawing Figure 17-4 for reference. 190-01115-01 G3X/G3X Touch Installation Manual - GSU 73 Installation Rev. AA Page 17-5...
Page 188 4. Connect backshell connector and hoses. NOTE When mounting the GSU 73 to the airframe, it is important to ensure that fastening hardware is tight for proper unit operation. 190-01115-01 G3X/G3X Touch Installation Manual - GSU 73 Installation Rev. AA Page 17-6...
Page 189: Outline And Installation Drawings
17.5 Outline and Installation Drawings Figure 17-4 GSU 73 Outline Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GSU 73 Installation Rev. AA Page 17-7...
Page 190 Figure 17-5 GSU 73 Orientation Drawings 190-01115-01 G3X/G3X Touch Installation Manual - GSU 73 Installation Rev. AA Page 17-8...
Page 191: Section 18 Gtp 59 (Temperature Probe) Installation
Figure 18-1. GTP 59 18.1 Equipment Description The Garmin GTP 59 is an outside mounted temperature probe that provides raw air temperature data. The temperature input device is a three-wire temperature probe interface. OAT Power Out and OAT High are connected internally at the OAT probe.
Page 192: General Specifications
212-00026-00 Contact, Pin, Mil Crimp, Size 22D 336-00021-00 GTP 59 OAT Probe 494-00022-XX *Included in G3X w/GSU 73 LRU Kit (K10-00016-00) 18.1.1 Additional Equipment Required • Cables - The installer will supply all system cables. 18.2 General Specifications Section 18-2 for mounting dimensions.
Page 193 10. Wrap the cable bundle with Silicone Fusion Tape (GPN: 249-00114-00 or similar) at the point where the backshell strain relief and cast housing contact the cable bundle. The smooth side of the backshell strain relief should contact the tape. 190-01115-01 G3X/G3X Touch Installation Manual - GTP 59 Installation Rev. AA Page 18-3...
Page 194: Gtp 59 Icing
Consequently, air temperature measurements may be incorrect if ice accumulates on the probe. Furthermore, computations dependent upon air temperature measurements may be affected (e.g. true airspeed and delta-ISA). 190-01115-01 G3X/G3X Touch Installation Manual - GTP 59 Installation Rev. AA Page 18-4...
Page 195: Outline And Installation Drawings
18.5 Outline and Installation Drawings Figure 18-2. GTP 59 O.A. T. Probe Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GTP 59 Installation Rev. AA Page 18-5...
Page 196: Section 19 Gtr 20 (Vhf Communications Radio) Installation
A GTR 20 cannot be installed in a system that also includes a GDU 37X. The GTR 20 will only work with the G3X system that uses the new GDU460 and GDU465 displays. The GTR 20 is not supported with G3X installations using GDU37X displays.
Page 197: Equipment Available
Washer, Split Lock, Size 8 212-00018-04 Washer, Flat, Non-Std, SS, ID .195, OD .354 212-20065-00 Conn, Rcpt, D-Sub, Crimp Socket, Commercial, 37 CKT 330-00625-37 Contact, Socket, Military Crimp, Size 20 336-00022-02 190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation Rev. AA Page 19-2...
Page 198: General Specifications
Less than 25% at rated output power SINAD greater than 6 dB when the RF level is -107 dBm with 30% modulation Sensitivity Squelch Automatic squelch with manual override 190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation Rev. AA Page 19-3...
Page 199: Installation Considerations
GTR 20 itself. NOTE The GTR 20 connects to the G3X system using the CAN bus. If communication is lost or no GDU displays are present, the GTR 20 will automatically tune the emergency frequency (121.500 MHz) and set the COM radio volume to a pre-determined level. See Section 32.4.21.1...
Page 200: Antenna Considerations
A COM Antenna that meets TSO-C37( ) and C38( ) or TSO-C169( ), 50W, vertically polarized. Maximum gain of 1 dBi with an impedance of 50 Ω. 190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation Rev. AA Page 19-5...
Page 201 Replace or clean VHF COM rack connector to ensure good coax ground. • Place a grounding brace between the GTR 20 and ground. • Shield the GTR 20 wiring harness. 190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation Rev. AA Page 19-6...
Page 202: Mounting Considerations
3:1, for best performance VSWR should be less than 2:1. A high VSWR decreases the amount of power radiated by the antenna and increases power supply current and heat dissipated by the radio when the radio is transmitting. 190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation Rev. AA Page 19-7...
Page 203: Mounting, Wiring, And Power Checks
Tune the unit to a local VHF frequency and verify the receiver output produces a clear and understandable audio output. Verify the transmitter functions properly by contacting another station and getting a report of reliable communications. 190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation Rev. AA Page 19-8...
Page 204: Flight Checks
Good aircraft electrical/charging system ground bonding is important. The wiring diagrams and accompanying notes in this manual should be followed closely to minimize noise effects. 190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation Rev. AA Page 19-9...
Page 205: Outline And Installation Drawings
19.8 Outline and Installation Drawings Figure 19-2 GTR 20 Outline Drawing (Mounting Brackets on Ends) 190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation Rev. AA Page 19-10...
Page 206 Figure 19-3 GTR 20 Outline Drawing (Mounting Brackets on Sides) 190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation Rev. AA Page 19-11...
Page 207 Figure 19-4 GTR 20 Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GTR 20 Installation Rev. AA Page 19-12...
Page 208: Section 20 Gps/Xm Antenna Installation
GDU 37X/4XX units for redundancy. 20.1 Non-Garmin Antennas Table 20-1 lists non-Garmin antennas currently supported by the GDU 37X/4XX. For non-Garmin antennas, follow the manufacturer’s installation instructions. It is the installer’s responsibility to ensure that their choice of antenna meets FAA standards according to the specific installation.
Page 209: Garmin Antennas
20.2 Garmin Antennas If using a Garmin GA 26C or GA 26XM, refer to the accompanying installation instructions (190-00082-00 or 190-00522-03). For GA 35, GA 55/55A, or GA 56 or GA 57X antennas, refer to this section and the outline and installation drawings in Section 20.7.
Page 210 There are several critical factors to take into consideration before installing an antenna for a satellite communications system. These factors are addressed in the following sections. 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-3...
Page 211: Antenna Mounting Considerations
Locate the GDU as far as possible from all COM antennas. If a COM antenna is found to be the problem, a 1.57542 GHz notch filter (Garmin P/N 330-00067-00) may be installed in the VHF COM coax, as close to the COM as possible.
Page 212 VHF COM or the (re-radiating) ELT transmitter. NOTE The separation requirement does not apply to GPS and COM combination antennas, provided the antenna has been tested to meet Garmin’s minimum performance standards. The separating requirement includes the combination with an XM antenna element as well.
Page 213 Figure 20-1 shows the recommended placement of antennas. Figure 20-1 Recommended Antenna Placement 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-6...
Page 214 The materials in some aircraft are not suitable for GPS signals to penetrate, care should be taken to properly modify the aircraft structure to accommodate this. Modifications of this sort are not recommended or inferred by Garmin or the installation of the GDU, and the installer should seek the guidance of the kit manufacture for such modifications.
Page 215 The bottom of the antenna does not need to make contact with the ground plane (i.e. the surface may be painted). The antenna will capacitively couple to the ground plane beneath the paint or aircraft cover. 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-8...
Page 216: Teardrop Footprint Antenna Installation (Ga 35, Ga 55, And Ga 56)
This section describes the structural mounting of the teardrop footprint antenna installation. An acceptable installation method is to use Garmin P/N: 115-00846-10 doubler plate with the GA 35 through-hole, or GA 55/GA 56 stud mount antennas. Another acceptable method is to fabricate and install...
Page 217 Do not use construction grade RTV sealant or sealants containing acetic acid. These sealants may damage the electrical connections to the antenna. Use of these type sealants may void the antenna warranty. 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-10...
Page 218 20.4.3 Reference Figures Figure 20-4 Doubler Design, Teardrop Footprint Antenna, Skin Thickness 0.032" to 0.049" Figure 20-5 Doubler Design, Teardrop Footprint Antenna, Skin Thickness 0.049" to 0.051" 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-11...
Page 219 Figure 20-6 Doubler Design, Teardrop Footprint Antenna, Skin Thickness 0.051" to 0.063" Figure 20-7 Sample Doubler Location, Teardrop Footprint Antenna, Metal Skin Aircraft 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-12...
Page 220 Figure 20-8 Skin Cutout Detail, Teardrop Footprint Antenna, Skin Thickness 0.032" to 0.049" Figure 20-9 Skin Cutout Detail, Teardrop Footprint Antenna, Skin Thickness 0.049" to 0.051" 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-13...
Page 221 Figure 20-10 Skin Cutout Detail, Teardrop Footprint Antenna, Skin Thickness 0.051" to 0.063" Figure 20-11 Doubler Installation, Teardrop Footprint Antenna, Skin Thickness 0.032" to 0.049" 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-14...
Page 222 Figure 20-12 Doubler Installation, Teardrop Footprint Antenna, Skin Thickness 0.049" to 0.051" Figure 20-13 Doubler Installation, Teardrop Footprint Antenna, Skin Thickness 0.051" to 0.063" 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-15...
Page 223: Arinc 743 Footprint Antenna Installation (Ga 36, Ga 37, Ga 55A, Ga 57X)
1.5 * rivet diameter) 20.5.1 Preparation of Doubler 1. Use Garmin P/N: 115-00846-00, or refer to Table 20-6 for guidance on selecting the appropriate doubler drawing based on the thickness of skin at the antenna location. Make the doubler from 2024-T3 Aluminum (AMS-QQ-A-250/5), 0.063”...
Page 224 (Figure 20-38) use locking nuts installed on doubler plate. Torque the four supplied #10-32 stainless steel screws (Garmin P/N: 211-60212-20, MS51958-67, or equivalent) 20-25 in-lbs. Torque should be applied evenly across all mounting studs to avoid deformation of the mounting area.
Page 225 20.5.3 Reference Figures Figure 20-14 Doubler Design, ARINC 743 Footprint Antenna, Skin Thickness 0.032" to 0.049" 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-18...
Page 226 Figure 20-15 Doubler Design, ARINC 743 Footprint Antenna, Skin Thickness 0.049" to 0.051" 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-19...
Page 227 Figure 20-16 Doubler Design, ARINC 743 Footprint Antenna, Skin Thickness 0.051" to 0.063" 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-20...
Page 228 Figure 20-17 Sample Doubler Location, ARINC 743 Antenna, Metal Skin Aircraft Figure 20-18 Skin Cutout Detail, ARINC 743 Footprint Antenna, Skin Thickness 0.032" to 0.049" 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-21...
Page 229 Figure 20-19 Skin Cutout Detail, ARINC 743 Footprint Antenna, Skin Thickness 0.049" to 0.051" Figure 20-20 Skin Cutout Detail, ARINC 743 Footprint Antenna, Skin Thickness 0.051" to 0.063" 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-22...
Page 230 Figure 20-21 Doubler Installation, ARINC 743 Footprint Antenna, SkinThickness 0.032" to 0.049" Figure 20-22 Doubler Installation, ARINC 743 Footprint Antenna, SkinThickness 0.049" to 0.051" 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-23...
Page 231 Figure 20-23 Doubler Installation, ARINC 743 Footprint, Skin Thickness 0.051" to 0.063" Figure 20-24 Installation of ARINC 743 Footprint Antenna 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-24...
Page 232: Non-Structural Mount Installation
Locking nuts are required to secure the ARINC 743 antenna (locking nuts installed on doubler). Torque the four supplied #10-32 stainless steel screws (Garmin P/N: 211-60212-20, MS51958-67, or equivalent) evenly across all mounting screws.
Page 233 Figure 20-25 Generic Non-structural ARINC 743 Footprint Antenna Installation 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-26...
Page 234 Figure 20-26. Figure 20-26 Example Bracket Antenna Mounting Under Glareshield Figure 20-27 Example Non-structural Antenna Mounting Under Glareshield 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-27...
Page 235 Teardrop or the ARINC 743 antenna. Figure 20-28 Example Teardrop Antenna Installation In Airframe Under Fabric Skin Figure 20-29 Example ARINC 743 Footprint In Airframe Under Fabric Skin 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-28...
Page 236 Follow the applicable gasketing and sealant instructions in Section 20.4.2 (Teardrop style) or Section 20.5.2 (ARINC 743 style). Figure 20-30 Example Non-structural Antenna Mounting On Airframe 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-29...
Page 237 Top of antenna at or above the center of the tube structure (Figure 20-31, top) 1.00 1.25 0.625 0.75 Top of antenna between the center and bottom of the tube structure (Figure 20-31, bottom) 1.00 11.5 1.25 14.3 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-30...
Page 238: Outline And Installation Drawings
20.7 Outline and Installation Drawings Figure 20-32 GA 35 Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-31...
Page 239 DO NOT PAINT Figure 20-33 GA 36 Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-32...
Page 240 DO NOT PAINT Figure 20-34 GA 37 Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-33...
Page 241 FRONT VIEW 3.00 76.2 2X 1.625 41.28 .813 20.64 .188 4.78 .625 15.88 2.59 [65.8] MOUNTING CUTOUT BACKING PLATE (ANTENNA OUTLINE) OUTLINE Figure 20-35 GA 55 Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-34...
Page 242 011-01153-00 ANTENNA OUTLINE .750 19.05 .625 15.88 2.350 59.69 2X 3.300 83.82 4X .220 5.59 MOUNTING CUTOUT NOTES: 1. DIMENSIONS: INCHES[mm] Figure 20-36 GA 55A Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-35...
Page 243 FRONT VIEW 3.00 76.2 2X 1.625 41.28 .813 20.64 .188 4.78 .625 15.88 2.59 [65.8] MOUNTING CUTOUT BACKING PLATE (ANTENNA OUTLINE) OUTLINE Figure 20-37 GA 56 Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-36...
Page 244 Figure 20-38 GA 57X Installation Drawing 190-01115-01 G3X/G3X Touch Installation Manual - GPS/XM Antenna Installation Rev. AA Page 20-37...
Page 245: Section 21 Engine/Airframe Sensor Installation
GDU 45X/46X systems) prior to use. NOTE In addition to the engine sensors listed in Table 21-1, the G3X system can also work with many other sensors (not listed) that output a compatible signal, refer to the sensor specifications to determine compatibility.
Page 246 (Alcor 86255) Temperature Type K thermocouple (EGT) (other) *Items with a Garmin part number may be included in a G3X Sensor Kit (Section 21.2), and are available individually from Garmin Dealers 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev.
Page 247 Pressure Any voltage-output Uses custom user-defined pressure transducer calibration (voltage to pressure) *Items with a Garmin part number may be included in a G3X Sensor Kit (Section 21.2), and are available individually from Garmin Dealers 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev.
Page 248 Position Sensor Any standalone Uses custom user-defined potentiometer calibration (voltage to position) *Items with a Garmin part number may be included in a G3X Sensor Kit (Section 21.2), and are available individually from Garmin Dealers 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev.
Page 249 Interstage Type K thermocouple Temperature (TIT/TOT/ITT) *Items with a Garmin part number may be included in a G3X Sensor Kit (Section 21.2), and are available individually from Garmin Dealers The Engine inputs being monitored are displayed as gauges on the EIS display (Figure 21-1) and also on the MFD Engine Page.
Page 250: Engine Sensor Applications
Sensor Kits K00-00512-00 and K00-00513-00. Refer to Sensor Interface drawings in Section 29 when installing Sensor Kit K00-00514-00. Table 21-2 Contents of G3X Sensor Kit, 4 Cylinder Lycoming/Continental (K00-00512-00) Item Garmin P/N Quantity Fuel Flow Transducer, EI FT-60...
Page 251 Rotax 912iS Sensors - The G3X system is capable of monitoring the following engine parameters from the Rotax 912iS FADEC digital interface, when connected via a GEA 24: •...
Page 252 Use Jabiru-supplied Type K thermocouples Cylinder head temperature Use Jabiru-supplied Type J thermocouples Fuel pressure Use Kavlico P4055-15G-E4A (494-30004-03) Fuel flow Use EI FT-60 (494-10001-00) or Floscan 201B-6 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-8...
Page 253 Use EI FT-60 (494-10001-00), EI FT-90, EI FT-120, or Floscan 201B-6, Fuel flow or select "Custom" configuration and enter pulses-per-gallon calibration Use Kavlico P4055-50G-E4A (494-30004-02) or select "Custom" Coolant pressure configuration and enter voltage-to-pressure calibration 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-9...
Page 254 21.2.3 Retrofit Engine Applications When installing a G3X system in a completed aircraft with a typical piston engine, it is generally possible to reuse a number of the existing engine sensors that may already be present. Consult section 28 for general engine sensor wiring guidance that can be applied to existing sensors.
Page 255 Fuel Flow Many existing installations use Floscan or Electronics International fuel flow sensors that are directly supported by the G3X system. Most shunt-type or Hall-effect sensors can be used without modification, if Bus Current calibration characteristics are known.
Page 256 #1 only. The second GEA 24 may also be used to support additional discrete inputs. For information on configuring twin-engine sensor inputs, see Section 32.4.4 Section 32.4.25.2.1. 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-12...
Page 257 21.2.4. A GDU 45X/46X system using two GEA 24 units can be used to monitor engine information for a twin- engine rotorcraft, as described in Section 21.2.5 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-13...
Page 258: Engine Sensor Installation
Section 30 contain interface drawings for sensor installations using the Garmin sensor kits, and for other sensor installations. 21.3.1 CHT (Cylinder Head Temperature) Type J grounded thermocouple - This type of sensor is typically used on Jabiru engines. See Jabiru Guidance for thermocouple installation.
Page 259 CHT probes. A finger sized loop should be provided to allow sufficient strain relief of the probe assembly, and care should be taken to ensure that no chafing of the wires occurs. Figure 21-2 CHT Probe Package Figure 21-3 CHT Probe Well 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-15...
Page 260 21.3.2.1 Engine Sensor Installation General Installation Guidance – To maintain G3X Engine Indicating System (EIS) measurement accuracy, thermocouple (TC) wire must be connected directly to the inputs of the GEA 24/GSU 73. If the supplied sensor wires are not long enough to connect directly to the GEA 24/GSU 73, then Type K TC extension wire must be used.
Page 261 See Figure 21-7 for an example of an installed EGT probe. Figure 21-5 EGT Package 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-17...
Page 262 Figure 21-6 Exhaust Pipe Drilled Figure 21-7 Installed EGT Probe Orientation 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-18...
Page 263 Figure 21-8 Vent Plug Figure 21-9 Oil Temperature Figure 21-10 Oil Temperature Probe Probe Installed (Crush Gasket Not Shown) 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-19...
Page 264 The fuel and oil pressure fittings on the engine port should have a restrictor hole where appropriate to minimize potential fluid loss in the event of breakage. 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-20...
Page 265 NOTE A restrictor or snubber fitting (not available from Garmin) may be installed to dampen manifold pressure fluctuations. One example is the PS-8G fitting from Omega Engineering. 3. Connect the supplied connector to the appropriate inputs of the GEA 24/GSU 73 as referenced in the Sensor Interface Drawings in Section 28 through Section 30.
Page 266 (or other suitable location). 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-22...
Page 267 G3X interconnects in Section 28. Secure the connector and wire assembly to an appropriate location in the engine compartment to provide strain relief. Figure 21-14 Magneto Bleed Port 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-23...
Page 268 CORRECT TACH SENSOR PORT CORRECT TACH WRONG PORT SENSOR PORT WRONG PORT Figure 21-15 Plugs on Slick/Unison 43XX Magneto Figure 21-16 Magneto Tach Sensor Installed 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-24...
Page 269 Transducers that require higher supply currents, including Princeton capacitive fuel quantity transducers, may require power to be supplied from the aircraft electrical bus instead. 190-01115-01 G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation Rev. AA Page 21-25...
Page 270 Sensor Description – Type K grounded thermocouple probe with screw-in type adapter. This type of sensor is applicable to all turbocharged engines. General Installation Guidance – To maintain G3X Engine Indicating System (EIS) measurement accuracy, thermocouple (TC) wire must be connected directly to the inputs of the GEA 24/GSU 73. If the supplied sensor wires are not long enough to connect directly to the GEA 24/GSU 73, then Type K TC extension wire must be used.
Page 271 Sensor Description – 1C4: 100 Amp / 50 mv shunt. This type of sensor is applicable to all engines. General Installation Guidance – Current sensing on the G3X can be done via the use of a traditional ammeter shunt (Figure 21-17). The ammeter shunt has two holes in the base for mounting with #10 screws.
Page 272 5. Sensor wires should be connected to the appropriate inputs on the GEA 24/GSU 73 as referenced in the G3X interconnects in Section 27 through Section 30. For engines with a fuel return line, a second flow sensor must be used to measure the quantity of unused fuel that is returned from the engine to the fuel tank.
Page 273 The Floscan 201B-6 (201-030-000) fuel flow sensor ranges from 28,000 to 31,000 pulses/gallon. The G3X default K factor for the 201B-6 is set to 29,500 pulses/gallon. Some Floscan fuel flow sensors come with a tag that lists the K factor number measured during unit calibration (see Figure 21-18).
Page 274 3. Connect the supplied connector to the appropriate inputs of the GEA 24/GSU 73 as referenced in the G3X interconnects in Section 28 and Section 29. Secure the connector and wire assembly to an appropriate location in the engine compartment to provide strain relief.
Page 275: Section 22 Connector Installation Instructions
Table 22-1 lists parts needed to install a Thermocouple, the item numbers correspond to Figure 22-1 and Figure 22-2. Parts for this installation are included in the Thermocouple Kit (011-00981-00), which is included in the G3X w/GSU 73 Installation Kit (K10-00017-00). Table 22-1 Thermocouple Kit GPN 011-00981-00 Item # Description Qty.
Page 276 4. Attach thermocouple (item 1) tightly to backshell (item 5) using screw (item 3). 5. Attach cover (item 6) to backshell (item 5) using screws (item 7). Figure 22-2 Jackscrew Backshell Thermocouple Installation 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-2...
Page 277: Jackscrew Configuration Module Installation Into A Jackscrew Backshell
Parts for these installations are included in the 011-00979-20 and 011-00979-22 kits, which are included in the G3X w/GSU 73 Installation Kit (K10-00017-00). Configuration modules are to be installed in the backshells of the P732 connector for the GSU 73 (use...
Page 278 5. Orient the connector housing (item 5) so that the inserted four conductor wire harness (item 3) is on the same side of the backshell (item 6) as the module (item 1). 6. Attach cover (item 7) to backshell (item 6) using screws (item 8). 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-4...
Page 279 Figure 22-4 Jackscrew Backshell Installation 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-5...
Page 280: Jackscrew Backshell Installation Instructions
Split Washer, #8, (.045" compressed thickness) Cad-plated steel MS35338-42 Flat Washer, Stainless, #8, .032" thick, .174"ID, .375" OD NAS1149CN832R Flat washer, Cad-plated Steel, #8, .032" thick, .174"ID, .375" OD NAS1149FN832P Silicon Fusion Tape 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-6...
Page 281 NOTE In Figure 22-5, “AR” denotes quantity “As Required” for the particular installation. Figure 22-5 Shield Install onto a Jackscrew Backshell (78 pin example) 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-7...
Page 282 “Ideal Window” length is recommended. Suggested tools to accomplish the window cut: • Coaxial Cable Stripper • Thermal Stripper • Sharp Razor Blade 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-8...
Page 283 The number of individual strands in each braid bundle is not specified. (e.g. QQB575F36T062) NOTE Flat Braid as opposed to insulated wire is specified in order to allow continuing air worthiness by allowing for visual inspection of the conductor. 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-9...
Page 284 1/64 – 1/32 inches from the end of the contact as shown in Figure 22-7. Figure 22-7 Insulation/Contact Clearance 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-10...
Page 285 (item 13). Warning: Placing the grooved side of the clamp across the cable bundle may risk damage to wires. 13. Attach the cover (item 14) to the backshell (item 1) using the two screws (item 15). 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-11...
Page 286 Method A.1 are still applicable. NOTE The maximum length of the combined braids should be approximately 4 inches. Figure 22-8 Method A.2 (Daisy Chain) for Shield Termination 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-12...
Page 287 Flat Braid (item 4, Figure 22-5) to be attached. NOTE Reference Section 22.3.2 for recommended solder sleeves and flat braid. The same recommendations are applicable to this technique. 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-13...
Page 288 Table 22-8 Shielded Cable Preparations – (Quick Term) Number of Pins Quick Term Min Quick Term Max Quick Term Backshell Size Std/HD (inches) (inches) Float (inches) 9/15 1.25 2.25 1.75 15/26 25/44 37/62 50/78 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-14...
Page 289 Method B.1 are still applicable. NOTE The maximum length of the combined braids should be approximately 4 inches. Figure 22-10 Method B.2 (Daisy Chain-Quick Term) for Shield Termination 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-15...
Page 290 5. Terminate this end via the ring terminals with the other Flat Braid per Steps 8 through 11 (Section 22.3.2) pertaining to shield termination. If this ground strap is the only wire to terminate, attach a Ring terminal, #8, insulated, 18-22 AWG (MS25036-149). 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-16...
Page 291 •Raychem D-436-36/37/38 •MIL Spec MIL-S-81824/1 This technique may be used with shield termination methods: A.1, A.2, B.1, B.2, C.1 and C.2. Figure 22-12 D-Sub Spliced Signal Wire illustration 190-01115-01 G3X/G3X Touch Installation Manual - Connector Installation Instructions Rev. AA Page 22-17...
Page 292: Section 23 Lru Pinouts
23 LRU PINOUTS Use the information in this section (along with other applicable sections/appendices in this document) to construct the wiring required for the G3X installation. Connector references JXXX(X) and PXXX(X) are used throughout this section and in Section 24 through Section 30.
Page 293 PWM LIGHTING 1 PWM LIGHTING 2 PWM LIGHTING 3 DISCRETE IN 8** DISCRETE IN 9** RESERVED *Indicates Active Low **Can be configured as Active High or Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-2...
Page 294 5 A POWER OUTPUTS TO DRIVE MOTOR UP OR DOWN PITCH TRIM OUT 2 YAW TRIM OUT 1 5 A POWER OUTPUTS TO DRIVE MOTOR LEFT OR RIGHT YAW TRIM OUT 2 RESERVED 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-3...
Page 295 10 A ACTIVE HIGH POWER OUTPUT FOR LIGHT 2 OUTPUT LIGHT 2 NOTE Keep Alive Power In (Pin 1, TB273) can be used as a second power input for the GAD 27. 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-4...
Page 296 2.3.1.3.3). To terminate the CAN bus at the GAD 27 short the pins (2 and 3) together. Refer to Section 2.3.1.3.2 for details on configuring and terminating the CAN bus. The CAN bus on J271 is used for communications between G3X LRUs. Pin Name Connector CAN HI...
Page 297 Lighting Bus Inputs Pin Name Connector LIGHTING BUS GROUND J271 LIGHTING CONTROL IN 1 J271 LIGHTING CONTROL IN 2 J271 LIGHTING CONTROL IN 3 J271 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-6...
Page 298 Low: Vin < 3.5 VDC, or Rin < 375 Ω (input active, motor movement inhibited) High: Vin >8 VDC, or Rin > 100k Ω (input inactive, motor movement allowed) Pin Name Connector MOTOR DISCONNECT J271 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-7...
Page 299 Low: Vin < 3.5 VDC, or Rin < 375 Ω (input active) High: Vin > 8 VDC, or Rin > 100k Ω (input inactive Pin Name Connector YAW TRIM L J271 YAW TRIM R J271 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-8...
Page 300: Gad 29 (Arinc 429 Adapter)
Figure 23-4 J291 on GAD 29, as viewed looking at connector on unit Pin Name CAN HI CAN LO RESERVED RESERVED RESERVED GROUND AIRCRAFT POWER 1 AIRCRAFT POWER 2 GROUND 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-9...
Page 301 ARINC RX 1B ARINC TX 1B GROUND RESERVED ARINC RX 4A ARINC RX 3A ARINC TX 2A GROUND CAN TERM 2 ARINC RX 2A ARINC RX 1A ARINC TX 1A 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-10...
Page 302 ARINC RX 2B J292 ARINC TX 2A J292 J292 ARINC TX 2B J292 J292 ARINC RX 3A J292 ARINC RX 3B J292 ARINC RX 4A J292 ARINC RX 4B 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-11...
Page 303 ISO 11898. Pins 9 and 21 are used to terminate the CAN bus. To terminate the CAN bus at the GAD 29 short the pins (9 and 21) together. Refer to Section 2.3.1.3 for details on configuring and terminating the CAN bus. The CAN bus on J291 shall be used for communications between G3X LRUs. Pin Name Connector CAN HI...
Page 304: Gdu 37X (Display Unit)
RS-232 IN 2 POWER GROUND POWER GROUND CONFIG MODULE POWER OUT MONO AUDIO OUT LO STEREO AUDIO OUT RIGHT STEREO AUDIO OUT LO SPARE SPARE SPARE SPARE *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-13...
Page 305 *Indicates Active Low NOTE The GDU 37X rear connector (J3701) is electrically isolated. For installations using shielded cables, a ground pin must be tied to the connector shell. 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-14...
Page 306 CDU SYSTEM ID PROGRAM* 3 GDU Mode PROGRAM* 4 GDU Mode J3701 Pin 25 J3701 Pin 42 Open Auto Reversionary Open Normal Operation Ground Forced Reversionary Ground Demo Mode 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-15...
Page 307 Wire Color Connector CONFIG MODULE CLOCK WHITE (WHT) J3701 CONFIG MODULE DATA YELLOW (YEL) J3701 CONFIG MODULE POWER OUT RED (RED) J3701 CONFIG MODULE GROUND BLACK (BLK) J3701 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-16...
Page 308 Pin Name Connector STEREO AUDIO OUT LEFT J3701 STEREO AUDIO OUT LO J3701 STEREO AUDIO OUT RIGHT J3701 STEREO AUDIO OUT LO J3701 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-17...
Page 309: Gdu 45X/46X (Display Unit)
GDU 45X/46X (Figure 8-3). This mounting method may not be recommended for all installations, contact Garmin for details before using this method. Figure 23-7 P4501/4601 on GDU 45X/46X, as viewed looking at connector on unit Pin Name...
Page 310 MONO AUDIO OUT LO STEREO AUDIO OUT RIGHT STEREO AUDIO OUT LO RESERVED FOR FUTURE DEVELOPMENT, DO NOT USE RESERVED FOR FUTURE DEVELOPMENT, DO NOT USE *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-19...
Page 311 CDU SYSTEM ID PROGRAM* 4 14V LIGHTING BUS HI SIGNAL GROUND CAN BUS LO CAN BUS HI RS-232 IN 1 RS-232 OUT 1 CONFIG MODULE GROUND CONFIG MODULE DATA *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-20...
Page 312 Do not use P4503/4603, this connector is reserved for future development. Figure 23-10 View of P4503/4603 Connector from Back of Unit Pin Name CAN BUS HI CAN BUS LO RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-21...
Page 313 Use 22 AWG wire (min) for all power and ground connections. Pin Name Connector AIRCRAFT POWER 1 P4502/4602 AIRCRAFT POWER 2 P4502/4602 POWER GROUND P4502/4602 POWER GROUND P4502/4602 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-22...
Page 314 When the switch is open, the display will operate normally. When the switch is grounded, the display changes to reversionary mode. Other displays in the system will not be affected by manually placing a display into reversionary mode. See the G3X Touch Pilot's Guide for further information about reversionary mode.
Page 315 Connect the configuration module to the PFD1 unit; do not connect a config module to PFD2, MFD1 or MFD2. Pin Name Connector CONFIG MODULE POWER OUT (3.3V, very low current) P4502/4602 CONFIG MODULE CLOCK P4502/4602 CONFIG MODULE GROUND P4502/4602 CONFIG MODULE DATA P4502/4602 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-24...
Page 316 Pin Name Connector 14V LIGHTING BUS HI P4502/4602 28V LIGHTING BUS HI P4502/4602 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-25...
Page 317 *The left and right common pins (pins 2 and 20) may be tied together or only one may be used. It is not necessary to use both common pins. 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-26...
Page 318: Gea 24 (Eis Interface)
Figure 23-12 J241 on GEA 24, as viewed looking at connector on unit Pin Name CAN HI CAN LO RESERVED RS-232 RX RS-232 TX GROUND AIRCRAFT POWER 1 AIRCRAFT POWER 2 GROUND 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-27...
Page 319 CHT6 HI / CHT 2 RESISTIVE HI EGT6 HI CHT5 / CHT 1 RESISTIVE HI EGT5 HI CHT4 HI EGT4 HI CHT3 HI EGT3 HI CHT2 HI EGT2 HI CHT1 HI EGT1 HI 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-28...
Page 320 POS 7 / TIT 2 / MISC TEMP 2 LO POS 7 / TIT 2 / MISC TEMP 2 HI POS 6 / TIT 1 / MISC TEMP 1 LO 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-29...
Page 321 POS 4 HI / +5V_4 POS 4 / GP 4 / FUEL QTY 4 POS 4 LO / GND *Indicates Active Low **Can be configured as active high or active low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-30...
Page 322 SHUNT 2 LO (shared with Pin 34, J243 connector) RESERVED / SPARE 1 RESERVED / SPARE 2 GP +12V *Indicates Active Low **Can be configured as active high or active low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-31...
Page 323 CAN bus. The CAN bus on J241 shall be used for communications between G3X LRUs. The CAN 2 bus on J244 shall be used to communicate with FADEC engine controllers and shall not be connected to other G3X LRUs. The CAN2 bus is not terminated at the unit, refer to the wiring diagrams for how to terminate the second CAN bus if used.
Page 324 RPM XDCR +12V_1 J243 RPM XDCR +12V_2 J243 FUEL QTY +5V_1 J244 FUEL QTY 1 J244 FUEL QTY 1 GND J244 FUEL QTY +5V_2 J244 FUEL QTY 2 J244 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-33...
Page 325 Inactive: Vin < 3.5 VDC, or Rin < 375 Ω Pin Name Connector DISCRETE IN 1 J244 DISCRETE IN 2 J244 DISCRETE IN 3 J244 DISCRETE IN 4 J244 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-34...
Page 326 POS 3 / GP 3 / FUEL QTY 3 J244 FUEL QTY 3 GND J244 POS 4 HI / +5V J244 POS 4 / GP 4 / FUEL QTY 4 J244 FUEL QTY 4 GND J244 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-35...
Page 327 POS 7 / GP7 / TIT 2/ MISC TEMP 2 HI J243 POS 7 / GP 7 / TIT 2/ MISC TEMP 2 LO J243 GP +5V J243 GP GND J243 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-36...
Page 328 The two bus voltage inputs are capable of accepting voltages of up to 40 Vdc. These inputs are configured by the GDU ( Section 31.4.18 for GDU 37X systems and to Section 32.4.25 for GDU 45X/46X systems). Pin Name Connector VOLTS 1 J244 VOLTS 2 J244 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-37...
Page 329 1 and 2 on the second GEA 24 to configure it as the EIS #2 LRU. Pin Name Connector SYSTEM ID 1A J244 SYSTEM ID 1B / GND J244 Figure 23-16 GEA 24 EIS #2 Configuration 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-38...
Page 330 J242 EGT2 LO J242 EGT3 HI J242 EGT3 LO J242 EGT4 HI J242 EGT4 LO J242 EGT5 HI J242 EGT5 LO J242 EGT6 HI J242 EGT6 LO J242 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-39...
Page 331 POS 7 / GP 7 / TIT 2 / MISC TEMP 2 LO J243 OIL TEMP HI J243 OIL TEMP LO J243 NOTE The pinout of J242 is compatible with 25-pin thermocouple wiring harnesses used in some third-party EIS systems. 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-40...
Page 332 GP2 HI / +5V J244 GP +5V_2 J244 GP +5V_3 J244 POS 5 HI / +5V J244 FUEL XDCR +12V_3 J244 FUEL XDCR +12V_4 J244 GP +12V J244 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-41...
Page 333: Gi 260 (Aoa Indicator)
The CAN Bus conforms to the BOSCH standard for Controller Area Network 2.0-B, and complies with ISO 11898. Refer to Section 2.3.1.3.2 for details on wiring the CAN bus. Using the CAN Bus is the preferred data interconnect for the GI 260 in a G3X system. Pin Name Wire Color CAN HI...
Page 334 23.6.4 RS-232 CHANNEL The RS-232 outputs conform to EIA Standard RS-232C with an output voltage swing of at least ±5 V when driving a standard RS-232 load. This channel is not used in typical G3X installations. Pin Name Wire Color...
Page 335: Gmc 305 (Afcs Mode Controller)
AIRCRAFT POWER 1 and AIRCRAFT POWER 2 are “diode ORed” to provide power redundancy. Pin Name Connector AIRCRAFT POWER 1 J3051 AIRCRAFT POWER 2 J3051 POWER GROUND J3051 POWER GROUND J3051 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-44...
Page 336 RS-232 load. RS-232 channel 1 should be connected to an available RS-232 port on a GDU display. RS-232 channel 2 should be connected to the GSA 28 roll servo RS-232 port in a Garmin autopilot system (see Figure 24-1.6).
Page 337: Gmc 307 (Afcs Mode Controller)
AIRCRAFT POWER 1 and AIRCRAFT POWER 2 are “diode ORed” to provide power redundancy. Pin Name Connector AIRCRAFT POWER 1 J3071 AIRCRAFT POWER 2 J3071 POWER GROUND J3071 POWER GROUND J3071 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-46...
Page 338 RS-232 load. RS-232 channel 1 should be connected to an available RS-232 port on a GDU display. RS-232 channel 2 should be connected to the GSA 28 roll servo RS-232 port in a Garmin autopilot system (see Figure 24-1.6).
Page 339: Gmu 22 (Magnetometer)
Pin Name Connector RS-232 IN J441 23.9.3.2 RS-485 The RS-485 pins provide data to the ADAHRS (GSU 25/73). Pin Name Connector RS-485 OUT A J441 RS-485 OUT B J441 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-48...
Page 340: Gps 20A (Waas Gps Position Source)
The CAN Bus conforms to the BOSCH standard for Controller Area Network 2.0-B, and complies with ISO 11898. Refer to Section 2.3.1.3 for details on wiring the CAN bus. Using the CAN Bus is the preferred data interconnect for the GPS 20A in a G3X system. Pin Name Connector CAN-H...
Page 341 The RS-232 outputs conform to EIA Standard RS-232C with an output voltage swing of at least ±5 V when driving a standard RS-232 load. RS-232 TX 1 is always configured to provide Garmin ADS-B+ data (at 9600 baud), to be used by a Mode S Extended Squitter (ES) transponder such as the GTX 23ES or GTX 330ES.
Page 342: Gsa 28 (Autopilot Servo)
ID_STRAP_4/(RS-232 RX for Roll Servo Only) AIRCRAFT GROUND AIRCRAFT POWER TRIM_IN_1 TRIM_IN_2 TRIM_OUT_1 TRIM_OUT_2 AP_DISCONNECT 23.11.2 Power Function Supply voltage (14/28Vdc) inputs. Pin Name Connector AIRCRAFT POWER J281 AIRCRAFT GROUND J281 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-51...
Page 343 Pins 7 and 8 (TX and RX) connect to the GMC 30X RS232 channel 2 on the ROLL SERVO ONLY. Pin Name Connector ID_STRAP_3/(RS-232 TX for Roll Servo Only) J281 ID_STRAP_4/(RS-232 RX for Roll Servo Only) J281 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-52...
Page 344 (either terminated or un-terminated). The adapter also allows trim signals to pass through when the servo is removed. Pin Name Connector TRIM_IN_1 J281 TRIM_IN_2 J281 TRIM_OUT_1 J281 TRIM_OUT_2 J281 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-53...
Page 345: Gsu 25/25B (Ahrs/Air Data Sensor Unit)
Figure 23-23 J251 on GSU 25, as viewed looking at connector on unit Pin Name CAN H CAN L RESERVED RS-232 RX 1 RS-232 TX 1 GROUND AIRCRAFT POWER 1 AIRCRAFT POWER 2 GROUND 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-54...
Page 346 UNIT ID 1 GROUND UNIT ID 1 +12V MAGNETOMETER POWER MAGNETOMETER GROUND RESERVED RS-232 TX 3 RS-232 RX 3 GROUND RS-485 RX A RS-485 RX B GROUND RS-232 TX 2 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-55...
Page 347 Transponder should only be connected to ADAHRS 1 (not 2 or 3). Pin Name Connector RS-232 RX 1 J251 RS-232 TX 1 J251 RS-232 TX 2 J252 RS-232 RX 3 J252 RS-232 TX 3 J252 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-56...
Page 348 Connect pin 4 (of J252) to pin 5 (of J252) Connect pin 4 (of J252) to pin 5 (of J252) and connect RS-232 RX 1 to RS-232 TX 1 ADAHRS #3 (pins 4 and 5 on J251) 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-57...
Page 349: Gsu 73 (Sensor Unit)
MAGNETOMETER RS-485 IN A SIGNAL GROUND RESERVED RESERVED RESERVED CAN BUS HI CAN BUS LO DISCRETE IN* 1 DISCRETE IN* 2 DISCRETE IN* 3 DISCRETE IN* 4 *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-58...
Page 350 MAGNETOMETER POWER OUT MAGNETOMETER GROUND SIGNAL GROUND SPARE SPARE SIGNAL GROUND SPARE SPARE SPARE AIRCRAFT POWER 1 SPARE AIRCRAFT POWER 2 SPARE SPARE SPARE SIGNAL GROUND *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-59...
Page 351 EGT 6/MISC PRESS LO VOLTS 2 LO CHT 6 LO OIL TEMP LO OAT PROBE IN HI OAT PROBE POWER OUT SIGNAL GROUND FUEL FLOW *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-60...
Page 352 POS 5 / MISC TEMP LO CHT 5 LO SPARE +12 VDC TRANSDUCER POWER OUT TRANSDUCER POWER OUT LO (GROUND) TRANSDUCER POWER OUT LO (GROUND) *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-61...
Page 353 (see Section configuration). Connector Pin Name J731 AIRCRAFT POWER 1 J731 AIRCRAFT POWER 2 J731 POWER GROUND J731 POWER GROUND 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-62...
Page 354 23.13.3.3 Magnetometer Power The GSU 73 outputs supply voltage to the GMU 22 via pins 38 & 39. Connector Pin Name J731 MAGNETOMETER POWER OUT J731 MAGNETOMETER GROUND 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-63...
Page 355 Connector Pin Name J731 MAGNETOMETER RS-232 OUT J731 RS-232 IN 2 (RESERVED) J731 RS-232 OUT 2 (RESERVED) J731 RS-232 IN 3 (TRANSPONDER) J731 RS-232 OUT 3 (TRANSPONDER) 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-64...
Page 356 Pin Name Wire Color J732 CONFIG MODULE CLOCK WHITE (WHT) J732 CONFIG MODULE DATA YELLOW (YEL) J732 CONFIG MODULE POWER OUT RED (RED) J732 CONFIG MODULE GROUND BLACK (BLK) 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-65...
Page 357 ACTIVE: Vout ≤ 0.5 VDC with ≤ 20 mA sink current Sink current must be externally limited to 20 mA max Connector Pin Name J731 DISCRETE OUT* 1 J731 DISCRETE OUT* 2 *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-66...
Page 358 OIL TEMP HI J732 OIL TEMP LO J732 POS 5 / MISC TEMP HI J732 POS 5 / MISC TEMP LO J732 FUEL 1 HI J732 FUEL 1 LO 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-67...
Page 359 POS 4 / GP 4 / FUEL 4 LO J732 SHUNT 1 HI J732 SHUNT 1 LO J732 SHUNT 2 HI J732 SHUNT 2 LO J732 THERMOCOUPLE REF IN HI J732 THERMOCOUPLE REF IN LO 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-68...
Page 360 GP 3/FUEL 3 or GP 4/FUEL 4 inputs, connect the high side of the input to +10 V power through a 1 kΩ resistor, as shown in Section Connector Pin Name J732 FUEL SENSOR PULL-UP 2 (FUEL 2) J732 FUEL SENSOR PULL-UP 1 (FUEL 1) 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-69...
Page 361: Gtp 59 (Temperature Probe)
The GTP 59 has one three-wire interface cable as shown in Figure 23-28. Wire color designations are shown in Figure 23-29 Figure 23-28 GTP 59 Figure 23-29 GTP 59 Wire Color Designations 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-70...
Page 362: Gtr 20 (Vhf Communications Radio)
MUSIC IN RIGHT MUSIC IN LEFT AIRCRAFT GROUND SPARE DISC 2* RESERVED RESERVED CAN TERM B CAN TERM A ID LO AUX 2 LO RECEIVER AUDIO LO *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-71...
Page 363 (25 and 26) together. Refer to Section 2.3.1.3 for details on configuring and terminating the CAN bus. The CAN bus on J2001 shall be used for communications between G3X LRUs. Pin Name CAN BUS LO CAN BUS HI...
Page 364 AUX 2 LO 23.15.7 Headset Audio Headset audio outputs Pin Name PILOT HS RIGHT PILOT HS LEFT PILOT HS LO COPILOT HS RIGHT COPILOT HS LEFT COPILOT HS LO 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-73...
Page 365 These inputs are considered inactive if the voltage to ground is 6.5-33 VDC or the resistance to ground is >100 k. Pin Name PILOT PTT* COPILOT PTT* *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-74...
Page 366 These inputs are considered inactive if the voltage to ground is 6.5-33 VDC or the resistance to ground is >100 kW. Pin Name DISC 1* DISC 2* *Indicates Active Low 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-75...
Page 367: Gtx 23 (Mode S Transponder)
RS-232 IN 1 RS-232 OUT 1 RS-232 IN 2 RS-232 OUT 2 NOT USED NOT USED ARINC 429 OUT 2 B NOT USED *Denotes active low (ground to activate) 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-76...
Page 368 NOT USED NOT USED NOT USED AIRCRAFT POWER 2 NOT USED POWER GROUND NOT USED AIRCRAFT POWER 2 NOT USED NOT USED *Denotes active low (ground to activate) 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-77...
Page 369 *Inactive State: 10  Vin  33 Vdc or Rin 100 kΩ, Active State: Vin  1.9 Vdc with  75 uA sink current, or Rin  375 Ω 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-78...
Page 370 Pin Name Connector ARINC 429 OUT 1A J2301 ARINC 429 OUT 1B J2301 ARINC 429 OUT 2A J2301 ARINC 429 OUT 2B J2301 SIGNAL GROUND J2301 SIGNAL GROUND J2301 190-01115-01 G3X/G3X Touch Installation Manual - LRU Pinouts Rev. AA Page 23-79...
Page 371: Section 24 G3X W/Gsu 25 And/Or Gad 29 Interconnect Drawings
24 G3X W/GSU 25 AND/OR GAD 29 INTERCONNECT DRAWINGS 24.1 Core Interconnect Drawings w/GSU 25 and/or GAD 29 Figure 24-1.1 Core Interconnect Notes for Section 24.1 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-1...
Page 372 Figure 24-1.2 GDU/GMU 22/GSU 25 Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-2...
Page 373 Figure 24-1.3 Power, Backup Power (4 AH), and Antennas Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-3...
Page 374 Figure 24-1.4 Power, Backup Power (3 AH), and Antennas Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-4...
Page 375 Figure 24-1.5 GMU 22/GSU 25/GTP 59/GI 260 Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-5...
Page 376 Figure 24-1.6 GMC 30X/GSA 28 Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-6...
Page 377 TRIM OUT 1 TRIM OUT 1 TRIM TRIM MOTOR MOTOR TRIM OUT 2 TRIM OUT 2 Figure 24-1.7 GSA 28 - Trim Switch Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-7...
Page 378 Figure 24-1.8 GEA 24/GSU 25 - GDU 37X/4XX Backup Data Path Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-8...
Page 379: External Interconnect Drawings W/Gsu 25
24.2 External Interconnect Drawings w/GSU 25 Figure 24-2.1 External Interconnect Drawing Notes for Section 24.2 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-9...
Page 380 Figure 24-2.2 GAD 27 Interconnect Example (page 1 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-10...
Page 381 Figure 24-2.2 GAD 27 Interconnect Example (page 2 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-11...
Page 382 Figure 24-2.2 GAD 27 Interconnect Example (page 3 of 3) 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-12...
Page 383 Figure 24-2.3 GDL 39/GDL 39R Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-13...
Page 384 Figure 24-2.4 GDU 37X/4XX - External LRU Interconnect Examples (page 1 of 2) 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-14...
Page 385 Figure 24-2.4 GDU 37X/4XX - External LRU Interconnect Examples (page 2 of 2) 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-15...
Page 386 Figure 24-2.5 Single GNS 430(W)/530(W) Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-16...
Page 387 Figure 24-2.6 Dual GNS 430(W)/530(W) Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-17...
Page 388 Figure 24-2.7 GNS 480 Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-18...
Page 389 Figure 24-2.8 GSU 25 - GTX 23ES Transponder Interconnect/Config Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-19...
Page 390 Figure 24-2.9 GSU 25 - Transponder Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-20...
Page 391 Figure 24-2.10 GSU 25 - GTX 345/345R/45R Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-21...
Page 392 Figure 24-2.11 GSU 25 - GTX 345/345R/45R ADS-B Position Source Options 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-22...
Page 393 Figure 24-2.12 GSU 25 - GTX 335/35R Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-23...
Page 394 Figure 24-2.13 GTN 6XX/7XX Transponder Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-24...
Page 395 Figure 24-2.14 Single GTN 6XX/7XX Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-25...
Page 396 Figure 24-2.15 Dual GTN 6XX/7XX Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-26...
Page 397 Figure 24-2.16 GTS 8XX Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-27...
Page 398 Figure 24-2.17 Non-Garmin Auto Pilot Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-28...
Page 399 Figure 24-2.18 Non-Garmin Auto Pilot Interconnect/Configuration Example w/GMC 30X 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-29...
Page 400 Figure 24-2.19 WX-500/Lightning Detector Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 25 and/or GAD 29 Drawings Rev. AA Page 24-30...
Page 401: Section 25 G3X W/Gsu 73 Interconnect Drawings
25 G3X W/GSU 73 INTERCONNECT DRAWINGS 25.1 Core Interconnect Drawings Figure 25-1.1 Core (w/GSU 73) Interconnect Notes for Section 25.1 and 2 Display CAN Bus Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-1...
Page 402 Figure 25-1.2 GDU/GMU 22/GSU 73 Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-2...
Page 403 Figure 25-1.3 Power, Backup Power, and Antennas Interconnect Drawing w/GSU 73 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-3...
Page 404 Figure 25-1.4 GMC 30X/GSA 28 Interconnect Drawing w/GSU 73 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-4...
Page 405: External Interconnect Drawings W/Gsu 73
25.2 External Interconnect Drawings w/GSU 73 Figure 25-2.1 External Interconnect w/GSU 73 Drawing Notes for Section 25.2 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-5...
Page 406 Figure 25-2.2 G3X w/GSU 73 - Transponders Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-6...
Page 407 Figure 25-2.3 GTN 6XX/7XX - Transponder Interconnect/Configuration Example w/GSU 73 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-7...
Page 408 Figure 25-2.4 Single GNS 430(W)/530(W) Interconnect/Configuration Example w/GSU 73 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-8...
Page 409 Figure 25-2.5 Dual GNS 430(W)/530(W) Interconnect/Configuration Example w/GSU 73 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-9...
Page 410 Figure 25-2.6 Single GTN 6XX/7XX Interconnect/Configuration Example w/GSU 73 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-10...
Page 411 Figure 25-2.7 Dual GTN 6XX/7XX Interconnect/Configuration Example w/GSU 73 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-11...
Page 412 Figure 25-2.8 GNS 480 Interconnect/Configuration Example w/GSU 73 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-12...
Page 413 Figure 25-2.9 Non-Garmin Auto Pilot Interconnect/Configuration Example w/GSU 73 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-13...
Page 414 Figure 25-2.10 G3X w/GSU 73 - GTS 8XX Interconnect/Configuration Example 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GSU 73 Interconnect Drawings Rev. AA Page 25-14...
Page 415: Section 26 G3X W/Gtr 20 Interconnect Drawings
This section contains interconnect drawings for installing a GTR 20 unit(s) into a G3X system. GTR 200 units may also be installed into a G3X system, but may use different connections than the GTR 20. Use the interconnect drawings in the GTR 200 Installation Manual (190-01553-00) for installing a GTR 200 into a G3X system.
Page 416: Notes For Section 26 Drawings
26.1 Notes for Section 26 Drawings Figure 26-1 Notes for Section 26 Interconnect Drawings 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GTR 20 Interconnect Drawings Rev. AA Page 26-2...
Page 417: Single Gtr 20 Interconnect Drawings
J4502 J4502 CAN NODE LENGTH 0.3 METERS MAXIMUM CAN NODE LENGTH 0.3 METERS MAXIMUM J2002 J2002 P2002 P2002 Figure 26-2.1 GTR 20/GDU 46X Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GTR 20 Interconnect Drawings Rev. AA Page 26-3...
Page 418 Figure 26-2.2 GTR 20/Mono Audio Source Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GTR 20 Interconnect Drawings Rev. AA Page 26-4...
Page 419 J2002 J2002 Figure 26-2.3 GTR 20/GMA 240 Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GTR 20 Interconnect Drawings Rev. AA Page 26-5...
Page 420 J2002 J2002 Figure 26-2.4 GTR 20/GMA 240/GNS 430 Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GTR 20 Interconnect Drawings Rev. AA Page 26-6...
Page 421: Dual Gtr 20 Interconnect Drawings
SEE NOTE 16 ID LO ID LO COM ANTENNA COM ANTENNA COM ANTENNA COM ANTENNA J2002 J2002 P2002 P2002 Figure 26-3.1 Dual GTR 20/CAN Bus Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GTR 20 Interconnect Drawings Rev. AA Page 26-7...
Page 422 J2002 J2002 J2002 J2002 Figure 26-3.2 Dual GTR 20/GMA 240 Interconnect Drawing 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GTR 20 Interconnect Drawings Rev. AA Page 26-8...
Page 423: J2001 Connector Layout
AUDIO LO HS LO IN 1 MIC LO TERM B TERM A J2001 AS VIEWED LOOKING AT REAR OF UNIT Figure 26-4 J2001 Connector Layout 190-01115-01 G3X/G3X Touch Installation Manual - G3X w/GTR 20 Interconnect Drawings Rev. AA Page 26-9...
Page 424: Section 27 Sensor Wiring Examples
THIS NOTE IS NO LONGER APPLICABLE AND HAS BEEN REMOVED. THIS NOTE IS NO LONGER APPLICABLE AND HAS BEEN REMOVED. Figure 27-1 Notes for Sensor Wiring Example Drawings (for all Section 27 drawings) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-1...
Page 425: Sensor Wiring Examples W/Gea 24
27.2 Sensor Wiring Examples w/GEA 24 Figure 27-2.1 Page 1 of 2 Fuel Quantity and Fuel Flow Examples (w/GEA 24) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-2...
Page 426 Figure 27-2.1 Page 2 of 2 Fuel Quantity and Fuel Flow Examples (w/GEA 24) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-3...
Page 427 GEA 24 P243 SHUNT 1 HI SHUNT 1 LO SHUNT 2 HI SHUNT 2 LO Figure 27-2.2 Page 1 of 2 Electrical and Discrete Input/Output Examples (w/GEA 24) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-4...
Page 428 TO POWER SUPPLY MASTER WARNING MASTER CAUTION DISCRETE OUT 2/ TO POWER SUPPLY MASTER CAUTION Figure 27-2.2 Page 2 of 2 Electrical and Discrete Input/Output Examples (w/GEA 24) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-5...
Page 429 Figure 27-2.3 Flaps/Trim and UMA Pressure Transducer Examples (w/GEA 24) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-6...
Page 430: Sensor Wiring Examples W/Gsu 73
27.3 Sensor Wiring Examples w/GSU 73 Figure 27-3.1 Page 1 of 2 Fuel Quantity and Fuel Flow Examples (w/GSU 73) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-7...
Page 431 Figure 27-3.1 Page 2 of 2 Fuel Quantity and Fuel Flow Examples (w/GSU 73) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-8...
Page 432 Figure 27-3.2 Page 1 of 2 Electrical and Discrete Input/Output Examples (w/GSU 73) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-9...
Page 433 Figure 27-3.2 Page 2 of 2 Electrical and Discrete Input/Output Examples (w/GSU 73) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-10...
Page 434 Figure 27-3.3 Flaps/Trim and UMA Pressure Transducer Examples (w/GSU 73) 190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples Rev. AA Page 27-11...
Page 435: Section 28 Lycoming/Continental Sensor Wiring Examples
28 LYCOMING/CONTINENTAL SENSOR WIRING EXAMPLES 28.1 Notes for Section 28 Drawings Figure 28-1 Notes for Lycoming/Continental Sensor Drawings (for all Section 28 drawings) 190-01115-01 G3X/G3X Touch Installation Manual - Lycoming/Continental Sensor Wiring Rev. AA Page 28-1...
Page 436: Gea 24 - Lycoming/Continental Sensor Drawings
28.2 GEA 24 - Lycoming/Continental Sensor Drawings Figure 28-2 GEA 24 - 4/6 Cylinder Lycoming/Continental Sensor Wiring Examples, Page 1 of 2 190-01115-01 G3X/G3X Touch Installation Manual - Lycoming/Continental Sensor Wiring Rev. AA Page 28-2...
Page 437 Figure 28-2 GEA 24 - 4/6 Cylinder Lycoming/Continental Sensor Wiring Examples, Page 2 of 2 190-01115-01 G3X/G3X Touch Installation Manual - Lycoming/Continental Sensor Wiring Rev. AA Page 28-3...
Page 438 Figure 28-3 GEA 24 - Lycoming IE2 Electronic Control Unit 190-01115-01 G3X/G3X Touch Installation Manual - Lycoming/Continental Sensor Wiring Rev. AA Page 28-4...
Page 439: Gsu 73 - Lycoming/Continental Sensor Drawings
28.3 GSU 73 - Lycoming/Continental Sensor Drawings Figure 28-4 GSU 73 - 4/6 Cylinder Lycoming/Continental Sensor Wiring Examples, Page 1 of 3 190-01115-01 G3X/G3X Touch Installation Manual - Lycoming/Continental Sensor Wiring Rev. AA Page 28-5...
Page 440 OUTPUT (PIN C) OUTPUT (PIN C) GROUND (PIN A) GROUND (PIN A) Figure 28-4 GSU 73 - 4/6 Cylinder Lycoming/Continental Sensor Wiring Examples, Page 2 of 3 190-01115-01 G3X/G3X Touch Installation Manual - Lycoming/Continental Sensor Wiring Rev. AA Page 28-6...
Page 441 Figure 28-4 GSU 73 - 4/6 Cylinder Lycoming/Continental Sensor Wiring Examples, Page 3 of 3 190-01115-01 G3X/G3X Touch Installation Manual - Lycoming/Continental Sensor Wiring Rev. AA Page 28-7...
Page 442: Section 29 Rotax Sensor Wiring Examples
29 ROTAX SENSOR WIRING EXAMPLES 29.1 Notes for Section 29 Drawings Figure 29-1 Notes for Rotax 912/914 Sensor Drawings (for all Section 29 drawings) 190-01115-01 G3X/G3X Touch Installation Manual - Rotax Sensor Wiring Examples Rev. AA Page 29-1...
Page 443: Gea 24 - Rotax Sensor Drawings
29.2 GEA 24 - Rotax Sensor Drawings Figure 29-2.1 GEA 24 - Rotax 912/914 Sensor Wiring Examples, Page 1 of 2 190-01115-01 G3X/G3X Touch Installation Manual - Rotax Sensor Wiring Examples Rev. AA Page 29-2...
Page 444 Figure 29-2.1 GEA 24 - Rotax 912/914 Sensor Wiring Examples, Page 2 of 2 190-01115-01 G3X/G3X Touch Installation Manual - Rotax Sensor Wiring Examples Rev. AA Page 29-3...
Page 445 Figure 29-2.2 GEA 24 - Rotax 912iS FADEC Wiring Example 190-01115-01 G3X/G3X Touch Installation Manual - Rotax Sensor Wiring Examples Rev. AA Page 29-4...
Page 446: Gsu 73 - Rotax Sensor Drawings
29.3 GSU 73 - Rotax Sensor Drawings Figure 29-3 GSU 73 - Rotax 912/914 Sensor Wiring Examples, Page 1 of 2 190-01115-01 G3X/G3X Touch Installation Manual - Rotax Sensor Wiring Examples Rev. AA Page 29-5...
Page 447 GROUND GROUND XDCR PWR OUT LO (GROUND) XDCR PWR OUT LO (GROUND) Figure 29-3 GSU 73 - Rotax 912/914 Sensor Wiring Examples, Page 2 of 2 190-01115-01 G3X/G3X Touch Installation Manual - Rotax Sensor Wiring Examples Rev. AA Page 29-6...
Page 448: Section 30 Jabiru Sensor Wiring Examples
IF MEASURING ALTERNATOR CURRENT, PLACE THE SHUNT BETWEEN THE ALTERNATOR B LEAD AND THE POWER DISTRIBUTION BUS. Figure 30-1 Notes for Jabiru Sensor Drawings (for all Section 30 drawings) 190-01115-01 G3X/G3X Touch Installation Manual - Jabiru Sensor Wiring Examples Rev. AA Page 30-1...
Page 449: Gea 24 - Jabiru Sensor Drawings
30.2 GEA 24 - Jabiru Sensor Drawings Figure 30-2 GEA 24 - Jabiru Sensor Wiring Examples, Page 1 of 2 190-01115-01 G3X/G3X Touch Installation Manual - Jabiru Sensor Wiring Examples Rev. AA Page 30-2...
Page 450 Figure 30-2 GEA 24 - Jabiru Sensor Wiring Examples, Page 2 of 2 190-01115-01 G3X/G3X Touch Installation Manual - Jabiru Sensor Wiring Examples Rev. AA Page 30-3...
Page 451: Gsu 73 - Jabiru Sensor Drawings
OUTPUT (PIN C) MANIFOLD PRESS LO MANIFOLD PRESS LO GROUND (PIN A) GROUND (PIN A) Figure 30-3 GSU 73 - Jabiru Sensor Wiring Examples, Page 1 of 2 190-01115-01 G3X/G3X Touch Installation Manual - Jabiru Sensor Wiring Examples Rev. AA Page 30-4...
Page 452 EGT 6/MISC 1 LO EGT 6/MISC 1 LO OUT #6 LO OUT #6 LO Figure 30-3 GSU 73 - Jabiru Sensor Wiring Examples, Page 2 of 2 190-01115-01 G3X/G3X Touch Installation Manual - Jabiru Sensor Wiring Examples Rev. AA Page 30-5...
Page 453: Section 31 Gdu 37X Configuration And Post Installation Checkout
The checkout procedures in this section are recommended to be performed after installing the G3X. The calibration procedures are required to be performed after installing the G3X. It is assumed that the person performing these checks is familiar with the aircraft, has a working knowledge of typical avionics systems, and has experience using the test equipment defined in this section.
Page 454: Configuration Mode
It is also acceptable to insert the SD card before powering on the unit. 2. A software update pop-up will appear on the screen, highlight YES and press the ENT key to begin the update. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-2...
Page 455 MAIN Configuration page will display "Updating..." next to any device that is currently performing a software update. Repeat for each GDU in the aircraft. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-3...
Page 456 SW update may damage the GDL 39/39R causing it to be non-functional. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-4...
Page 457: Configuration
The Main Configuration Page is used to display LRU (device) specific information such as Software Version, Unit ID’s, System ID’s, and Database information for the various databases used by the G3X. This page has no user-selectable options. Faults are indicated by a Red X next to the affected LRU.
Page 458 YD" for a two-axis autopilot installation with a third yaw damper servo. 1. In configuration mode (Section 31.2), use the FMS Joystick to select and view the LRU Page. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-6...
Page 459 Use the FMS Joystick to enable or disable the listed LRUs. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-7...
Page 460 Calibration Procedures–See Section 31.3 (SW loading procedure) and the following sections (Post Installation Calibration Procedures) for further information regarding the AHRS Configuration Page. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-8...
Page 461: Gsu 25/73 & Gmu 22 Post-Installation Calibration
ADAHRS Static Altitude Procedure F is only used when an ADAHRS has Pressure re-calibration failed a periodic altimeter test Calibration 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-9...
Page 462: Data Validity Requirements For Ahrs Calibration
Any GMU 22 removal or replacement requires repeating the magnetometer calibration. A repeat of the pitch/roll offset procedure (Procedure B) requires a repeat of the magnetometer calibration procedure (Procedure D). 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-10...
Page 463: Calibration Procedure A: Ahrs Orientation
3. Use the FMS Joystick to select which AHRS (1, 2, or 3) is being configured. 4. Use the FMS Joystick to select Unit Orientation and press the ENT key. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 464 7. Read the description of the selected orientation to ensure the proper orientation has been selected, then press the Save softkey to store the orientation. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 465 1. Enter configuration mode by holding down the left-hand softkey while powering on the PFD 1 display (if needed). 2. Use the FMS Joystick to select the AHRS Page (if needed). 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-13...
Page 466 Joystick to select which AHRS (1, 2 or 3) is being configured. 4. Use the FMS Joystick to select PITCH/ROLL OFFSET, press the ENT key. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 467 The GSU 73 pitch/roll offset procedure completes in a few seconds. The GSU 25 pitch/roll offset procedure has a 30 second countdown timer that resets when the aircraft moves. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 468 AHRS units before moving the aircraft. This applies equally to all AHRS units, including the GSU 25, GSU 73, and G5 backup display. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 469 3. Ensure that all the required status boxes are checked (Table 31-2 Table 31-3). Use the FMS Joystick to select which AHRS (1, 2 or 3) is being configured. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-17...
Page 470 5. Ensure that the aircraft has been properly prepared per the on-screen instructions. See Table 31-4 for a sample test sequence. Press the Start softkey to begin the test. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-18...
Page 471 The magnetic deviation value is displayed to indicate the pass or fail margin of the test. Press the Done softkey to return to the AHRS Page. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 472 Turn off all wing-tip lights simultaneously 5:40 Beacon on 5:50 Beacon off 6:00 Pitot heat on 6:10 Pitot heat off 6:20 End of test 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-20...
Page 473 A maximum deviation value greater than 100% of the total limit in any axis indicates a problem that must be resolved. Compare the corresponding timestamps with the prepared test sequence to identify which action produced the problem. Contact Garmin for assistance in resolving the problem.
Page 474 (west) of the North/South axis to allow turning clockwise around the site as indicated in Figure 31-3. Figure 31-3 Aircraft Alignment 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-22...
Page 475 Joystick to select which AHRS (1, 2 or 3) is being configured. 4. On the AHRS page, use the FMS Joystick to select Magnetometer Calibration and press the ENT key. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-23...
Page 476 6. Follow the on-screen instructions, the dots at the end of the text will be removed as the test progresses. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-24...
Page 477 This is especially important if something about the airplane has been changed that required a repeat of the Magnetic Calibration Procedure. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 478 3. Ensure that all the required status boxes are checked (Table 31-2 Table 31-3). Use the FMS Joystick to select which AHRS (1, 2 or 3) is being configured. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-26...
Page 479 4. Use the FMS Joystick to select ENGINE RUN-UP TEST and press the ENT key. 5. Ensure that the aircraft has been properly positioned per the on-screen instructions, then press the Start softkey to begin the test. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-27...
Page 480 7. Press the Done softkey when engine runup has been completed, the test results will be displayed. Ensure that test results indicate Passed, then press the Done softkey to return to the AHRS page. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 481 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-29...
Page 482 The ADAHRS Calibration page (configuration mode) has a selection for ADAHRS Static Pressure Calibration. This procedure is used to perform an altimeter re-calibration. The altitude pressure sensor used in any G3X ADAHRS unit is very low drift and does not typically require re-calibration. NOTE This calibration is only used when an ADAHRS fails a periodic altimeter test and should only rarely, if ever, be used.
Page 483 5. Ensure that all on-screen instructions have been complied with, then press the Start button to begin the calibration. Actual displayed image will be similar to following figure. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 484 8. When the static pressure calibration is complete, a status screen will show that the procedure was successful. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-32...
Page 485 NOTE The following post installation checkout must be followed after every completed installation. These steps should be followed when using a Garmin mounting kit or non- Garmin mounting parts to install the GSA 28. After mounting the GSA 28, please complete the following steps prior to completing the first flight with the GSA 28.
Page 486 “wing-leveler”. The roll servo follows roll steering commands from the G3X display so the airplane will hold a desired roll angle, follow a desired heading, or follow the lateral component of a flight plan.
Page 487 NOTE Ensure basic autopilot functionality is properly adjusted before enabling trim control for any servo. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-35...
Page 488 31.4.4.3 Step by Step On-Ground Setup Servo Wiring Checkout The first phase of setting up the Garmin autopilot system is to verify the proper wiring of the GSA 28 servos while on the ground. 1. If the installation is a 1-axis (roll only) autopilot, use the LRU page in configuration mode on the PFD to configure the “Autopilot Servos”...
Page 489 Finally, verify the electric trim motor responds in the proper directions using the TRIM L and TRIM R softkeys on the AP CONFIG page. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 490 Finally, verify the electric trim motor responds in the proper directions using the TRIM UP and TRIM DN softkeys on the AP CONFIG page. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 491 Finally, verify the electric trim motor responds in the proper directions using the TRIM L and TRIM R softkeys on the AP CONFIG page. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 492 BANK LEFT BANK RIGHT Figure 31-5 Reversed Roll Servo Direction 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-40...
Page 493 NOSE DOWN NOSE UP Figure 31-7 Reversed Pitch Servo Direction 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-41...
Page 494 NOSE LEFT NOSE RIGHT Figure 31-9 Reversed Yaw Damper Direction 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-42...
Page 495 The min airspeed limit should be set above the stall speed of the aircraft with some margin. b) The max airspeed limit should be set below the never exceed speed of the aircraft with some margin. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-43...
Page 496 31.4.4.4 Autopilot Setup The next phase of setting up the Garmin autopilot system is to verify the proper functionality of the autopilot system on the ground in normal mode. This phase of the checkout requires a valid aircraft heading and pitch output from the ADAHRS. This means the post installation procedures must have already been completed on the ADAHRS before performing the on ground autopilot normal mode checkout.
Page 497 5. Verify the stick properly moves toward the nose and toward the right wing smoothly with no control system binding. Figure 31-11 Stick Position Nose Down, Bank Right 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-45...
Page 498 7. Verify the stick properly moves toward the tail and toward the right wing smoothly with no control system binding. Figure 31-12 Stick Position Nose Up, Bank Right 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-46...
Page 499 10. If the stick position does not move in the correct direction, correct the roll and pitch servo directions documented in Servo Wiring Checkout Step 9 Step 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-47...
Page 500 Select the AUTOPILOT page. d) Select ROLL SERVO and set the MAX TORQUE. e) Select PITCH SERVO and set the MAX TORQUE. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-48...
Page 501 12. Engage the autopilot and verify that it properly disconnects with a short press and release of the CWS/DISCONNECT button. a) If the audio output of the G3X system is connected to the aircraft audio system, verify the pilot hears an autopilot disconnect tone when disconnecting the autopilot.
Page 502 CWS/DISCONNECT button. a) If the audio output of the G3X system is connected to the aircraft audio system, verify the pilot hears an autopilot disconnect tone when disconnecting the autopilot.
Page 503 31.4.4.6 Step By Step In-Air Autopilot Setup The next phase of setting up the Garmin autopilot system is to verify and tune the proper functionality of the autopilot system while airborne. WARNING This stage of the flight test involves allowing the GSA 28 autopilot servos to manipulate the flight control surfaces of the aircraft.
Page 504 See preceding note to access the expert settings. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-52...
Page 505 Press MENU two times on the GDU to enter the MAIN MENU page. c) Select the SYSTEM SETUP page. d) Select the AUTOPILOT page. e) Select PITCH SERVO page and highlight the SERVO GAIN entry. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-53...
Page 506 See preceding note to access the expert settings. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-54...
Page 507 See preceding note to access the advanced/expert settings. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-55...
Page 508 Yaw Damper Setup The next phase of setting up the Garmin yaw damper system is to verify and tune the proper functionality of the yaw damper system in the air. WARNING This stage of the flight test involves allowing the GSA 28 autopilot servos to manipulate the flight control surfaces of the aircraft.
Page 509 Fly a yaw doublet and engage the YD as the ball swings through the center 1.Right foot rudder to swing ball left 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-57...
Page 510 See preceding note to access the advanced/expert settings. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-58...
Page 511 This item has no effect on auto trim. Figure 31-15 Roll, Pitch, and Yaw Configuration Pages 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-59...
Page 512 Recommend setting the slowest motor speed to 25% (will be adjusted later in flight) 3. Re-verify proper trim movement in described in Section 31.4.4.3 Steps 6, 7, & 8. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-60...
Page 513 31.4.4.8 In Air Setup The next phase of setting up the Garmin GSA 28 based trim control system is to verify and set the proper functionality of the trim system in the air. WARNING This stage of the flight test involves allowing the GSA 28 autopilot servos to manipulate the flight control surfaces of the aircraft.
Page 514 Trim aircraft using manual electric trim inputs ii. Trim response should not be overly slow iii. Trim response should not be overly fast 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-62...
Page 515 GMC 30X AP button or the softkeys on the PFD display. Figure 31-16 General Autopilot Configuration Page 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-63...
Page 516 (configuration mode only) The Trim Motor Control should be disabled if the GSA 28 roll servo was not connected to an auxiliary trim motor. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-64...
Page 517 If the installer notices the aircraft doing very small oscillations, the Fine Adjust Time and Fine Adjust Amount can be used to correct this. Figure 31-17 Roll Servo Autopilot Configuration Page 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-65...
Page 518 The Trim Motor Control should be disabled if the GSA 28 pitch servo was not connected to an auxiliary trim motor. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-66...
Page 519 If the installer notices the aircraft doing very small oscillations, the Fine Adjust Time and Fine Adjust Amount can be used to correct this. Figure 31-18 Pitch Servo Autopilot Configuration Page 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-67...
Page 520 The Trim Motor Control should be disabled if the GSA 28 yaw damper servo was not connected to an auxiliary trim motor. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-68...
Page 521 Accel Filter Constant is an expert level setting, and should generally be not be changed by the installer, the default value is 0.16. Figure 31-19 Yaw Damper Autopilot Configuration Page 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-69...
Page 522 The Airspeed Accel Gain should be increased if the aircraft is appears to back off from the desired airspeed target when closing on the bug. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 523 The Airspeed Track Gain should be decreased if the aircraft is overly aggressive while tracking airspeed when the airspeed error is less than 5 knots. Figure 31-20 Pitch Gain Autopilot Configuration Page 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-71...
Page 524 Manual Electric Trim (MET) control and then reassert it to continue running trim. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-72...
Page 525 Figure 31-21 Manual Electric Trim Autopilot Configuration Page 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-73...
Page 526 Stall Warning Caution Alert Approach Target AOA Minimum Visible AOA Figure 31-22 Angle of Attack (AOA) Display 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-74...
Page 527 MEDIUM ANGLE OF ATTACK EXCESSIVE ANGLE OF ATTACK Air Flow is Broken. No Lift to Sustain the Airplane. Figure 31-23 Angle of Attack (AOA) Illustration 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-75...
Page 528 1. In normal mode on PFD 1, press the MENU Key twice to display the Main Menu. 2. Use the FMS Joystick to select System Setup. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 529 Alert AOA, and Calibrated Stall Warning AOA), plus 1 optional calibration point (Callibrated Approach Target AOA, if desired) in the following recommended order. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-77...
Page 530 1. Use the FMS Joystick to select the Calibrated Minimum Visible AOA calibration field, then press the Calibrate softkey . 2. Follow the onscreen instructions, then press the Start softkey to begin the calibration. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-78...
Page 531 After calibrating all required AOA points, if the AOA gauge appears too frequently or not frequently enough, the Minimum Visible AOA calibration step can be repeated to set a new value. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-79...
Page 532 1. Use the FMS Joystick to select the Calibrated Caution Alert AOA calibration field, then press the Calibrate softkey. 2. Follow the onscreen instructions, then press the Start softkey to begin the calibration. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-80...
Page 533 After calibrating all required AOA points, if the AOA caution alert and audio warning occur too frequently or not frequently enough, the Caution Alert AOA calibration step can be repeated to set a new value. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-81...
Page 534 2. Follow the onscreen instructions, then press the Start softkey to begin the calibration. 3. Press the Calibrate softkey when in compliance with the onscreen instructions. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 535 6. If desired, proceed to Approach Target AOA Calibration (Optional). If the Approach Target AOA Calibration procedure is not desired, the AOA Calibration Procedure is complete. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-83...
Page 536 1. Use the FMS Joystick to select the Calibrated Approach Target AOA calibration field, then press the Calibrate softkey . 2. Follow the onscreen instructions, then press the Start softkey to begin the calibration. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-84...
Page 537 3. Press the Calibrate softkey when in compliance with the onscreen instructions. 4. Verify that the calibration is successful, then press the Done softkey when finished. 5. This completes the AOA calibration procedure. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-85...
Page 538 GDU. When set to Sync Alt Bug, the selected altitude (altitude bug) will be automatically set to the current aircraft altitude when the user selects altitude hold mode manually by pressing the ALT key on the GMC 30X or the ALT softkey on the display. See the G3X Pilot's Guide for additional details.
Page 539 GMC 30X or the FMS Joystick results in a change to VS mode for a climb or descent to a new altitude. See the G3X Pilot's Guide for further details. Figure 31-30 Default Vertical Speed...
Page 540 This page allows configuration of certain options for the ESP (Electronic Stability and Protection) function. It will only appear in installations that include an autopilot with Garmin servos. ESP is an optionally enabled feature that is intended to assist the pilot in maintaining the aircraft in a stable flight condition.
Page 541 Level Mode to bring the aircraft into level flight if ESP has been engaged for more than 15 seconds of a 30 second time period. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 542 VNE has been entered as 205 knots indicated airspeed. The aircraft is below the never-exceed speed any time its indicated airspeed is below 205 knots. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 543 Mach limit even if its indicated airspeed is below the normal indicated VNE "red line". The second red band on the PFD airspeed tape alerts the pilot to this condition 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 544 GDU will use the default black-and-white airplane symbol. 1. In configuration mode, use the FMS Joystick to select the ACFT Page. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-92...
Page 545 ENT Key or use the FMS Joystick to select the next item. Press the FMS Joystick to move the cursor to the page selection menu when finished. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 546 4. To edit or delete a station, highlight the desired station, then press the ENT softkey. 5. Press the FMS Joystick to move the cursor to the page selection menu when finished. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 547 The Units Configuration Page allows selection of the desired displayed units for the listed items in the Units Configuration window. The various settings for Location Format, Map Datum, and Heading can be accessed in the Position Configuration window. See the G3X Pilot’s Guide for a description of Location Format and Map Datum.
Page 548 The DSPL Configuration Page allows setting the parameters for display backlight and display options configuration. 1. In configuration mode, use the FMS Joystick to select the DSPL Page. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-96...
Page 549 Input Type–Sets the aircraft lighting bus voltage for either 12 or 24 V input to match the aircraft lighting bus voltage. Time Constant–Adjusts the speed (in seconds), that the brightness level responds to changes in the input voltage level. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-97...
Page 550 PFD Auto Declutter - Determines whether non-essential information will be removed from the PFD display when the aircraft is in an unusual attitude. Set to “Disable” to retain all information on the PFD during aerobatic maneuvers. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-98...
Page 551 PFD HSI Orientation–Allows setting the PFD HSI Orientation to either Heading or User Selected (default). The Heading selection displays the HSI (on the PFD) in a heading-up orientation. The User Selected setting enables an HSI Orientation option on the PFD Setup page, see the G3X Pilot’s Guide (190-01115-00) for more info.
Page 552 Alert Output – If set to MONO + STEREO, alert tones and messages will be output on both the mono and stereo outputs. If set to MONO ONLY, alert tones and messages will be output only on the mono output. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 553 ENT Key or use the FMS Joystick to select the next item. Press the FMS Joystick to move the cursor to the page selection menu when finished. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 554 Each connected GDU 37X has three configurable RS-232 channels, the optional settings are: Garmin Data Transfer - The proprietary format used to exchange data with a PC or a GDL 39 Garmin Instrument Data - Used for connecting to compatible Garmin LRUs (e.g. GSU 25, GMC 30X) Garmin HSDB - Used for connecting to compatible Garmin LRUs (e.g.
Page 555 Appendix Aviation In - The proprietary format used for input to the G3X (baud rate of 9600) from an FAA certified Garmin panel mount unit. Allows the G3X to display a Go To or route selected on the panel mount unit, which eliminates the need to enter the destination on both units.
Page 556 Highlight the ‘GPS1’, ‘GPS2’, etc. fields on the Main Configuration page to verify which RS-232 and ARINC 429 inputs the G3X system is currently using for NAV 1 and NAV 2. Vertical Power – A 3rd party LRU that integrates with the G3X to monitor and control the entire electrical system via the GDU.
Page 557 377 Equipment ID ARINC 429 Inputs: Garmin GPS – Receives GPS labels from a GNS 400/500, GNS 480, or GTN 600/700 series unit. A second selection is used to determine if the GPS input is from NAV 1 or NAV 2.
Page 558 (disabled), or if the system should always return to using the configured external GPS nav source at powerup (enabled). 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 559 1. Power on the unit in configuration mode and use the FMS Joystick (scroll down) to view GPS Status on the Main Page. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-107...
Page 560 GPS Status may also be monitored on the Info page in normal mode. The signal strength bars are a real-time representation of GPS signal strength, which may be useful for troubleshooting a failed COM interference test. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-108...
Page 561 Aircraft Max Speed: Enter aircraft maximum speed. Aircraft Length: Enter Aircraft Length. Aircraft Width: Enter Aircraft Width. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-109...
Page 562 HSDB GTN/GTS Device: These fields are only available when Transponder Type is configured for a GTX 345, 345R, or 45R. Used to select which device(s) the GTX will communicate with (GTN and/or GTS) via HSDB. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-110...
Page 563 These files can be opened in Excel, or imported into Google Earth for viewing using the Garmin Flight Log Conversion tool. The tool and instructions needed to import the files into Google Earth are available from the G3X Product Page found on the Garmin website www.garmin.com.
Page 564 Additionally, all installation practices should be done in accordance with AC 43.13-1B. Section 27 through Section 30 contain interface drawings for sensor installations using the Garmin sensor kits, and for other sensor installations. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev.
Page 565 EIS LRU type (GEA 24, Figure 31-34 or GSU 73, Figure 31-35) will be displayed. Figure 31-34 GEA 24 Engine/Airframe Input Configuration Page 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-113...
Page 566 Configuration page that allows access to calibration functions and time adjustments, but does not allow changing EIS configuration values. See Section 31.4.18.4 for calibration information.See also Engine Time Configuration Total Time information. Figure 31-36 EIS Configuration Page 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-114...
Page 567 3. Press the Save softkey to store settings or press the Cancel softkey to cancel changes and return to the Engine Configuration Page. 4. Press the FMS Joystick to move the cursor to the page selection menu when finished. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-115...
Page 568 Yellow Line Red Line Gauge Display Range – The Gauge Display Range allows for setting the minimum and maximum values of each gauge. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-116...
Page 569 "VOLTS 1" and "VOLTS 2”. If there is not enough room to display both related gauges then neither gauge will be displayed in the EIS display (but will be displayed on the MFD’s Engine Page). 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 570 EIS display. These required gauges do not have an EIS Display setting. Other gauges will be displayed as space permits based upon hierarchy. Oil Temperature Oil Pressure Fuel Quantity 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-118...
Page 571 TIT 1 and TIT 2 inputs on the GEA 24 or GSU 73. If Lean Assist using TIT is desired, change the Lean Assist setting to "Enabled". (see Lean Assist for more information). 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-119...
Page 572 Rotax 912iS: For the GEA 24, select "Rotax FADEC" for the manifold pressure configuration to use manifold pressure data from the Rotax 912iS FADEC interface. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 573 Coolant Pressure The Kavlico P4055-50G sensor can be configured to monitor engine coolant pressure on the GEA 24 or GSU 73 MISC PRESS input. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-121...
Page 574 Note: After performing fuel quantity calibration, it is advised to back up the calibration data to an SD card (see Section 31.4.18.4). Changing the configuration for a fuel quantity input may reset calibration data. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-122...
Page 575 Lane A of the Rotax 912iS ECU. Configure the VOLTS 2 input to "Rotax FADEC ECU Bus B Volts" to power supply voltage data from ECU Lane B. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 576 If both fuel flow inputs are configured, the displayed fuel flow will be FUEL FLOW 1 (feed) minus FUEL FLOW 2 (return). 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-124...
Page 577 For turbine engine applications, the CHECK GEAR alert message will not appear when engine torque is greater than the bottom of the lowest green color band on the torque gauge. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-125...
Page 578 7°C (45°F) and the input is not active. Configure for Active Low when used with the regulated GAP 26 (-20 version). See also GAP 26 Alert Configuration. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-126...
Page 579 7° C (45° F). This configuration provides the same indication as Configuration #2, but hides the pitot temperature alert when flying in warmer weather conditions. Figure 31-39 Configuration #3 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-127...
Page 580 FADEC data interface (for example, an Economy mode indication) will be displayed if available. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-128...
Page 581 Records Total Time when aircraft is airborne as determined by GPS data Flight Time and the indicated airspeed Records Total Time when engine RPM is greater than 100 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-129...
Page 582 31.4.18.4 Input Configuration Items Requiring Calibration Fuel Input Calibration – The G3X has two fuel calibration curves, the standard ‘in-flight’ or normal flight attitude calibration curve and an optional ‘on-ground’ or ground/taxi attitude calibration curve. The ground/taxi calibration curve can be used for aircraft that have a significantly different attitude when on the ground, such as tailwheel aircraft.
Page 583 To delete a calibration value, highlight the desired data point in the list and press the CLR Key. Then highlight Yes on the pop-up window, and press the ENT Key, the calibration data is removed. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 584 Factor must generally be adjusted up or down to increase the accuracy of the fuel flow calibration. If the fuel usage reported by the G3X differs from the actual fuel usage, as measured at the fuel pump (or other trusted method of measurement), use the following formula to calculate a corrected K-Factor, which can then be used to calibrate the fuel flow.
Page 585 To delete a calibration value, highlight the desired data in the list, and press the CLR Key. Then highlight Yes on the pop-up window, and press the ENT Key, the calibration data is removed. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 586 If the resulting current value is less than the deadband value, the displayed current will be zero. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 587: Garmin Database Updates
The ‘flyGarmin’ website requires entering the System ID to update databases, this allows the databases to be encrypted with the G3X system’s unique System ID when copied to the SD Card. The System ID is displayed on the System Setup Menu in normal mode, or on the Main Page in configuration mode. The Unit ID is different for each LRU in the G3X system, and cannot be used for this purpose.
Page 588 3. Upon turn-on, a screen appears which lists the databases on the SD card. A green checkbox indicates that the database already installed on the G3X is up to date, an empty checkbox indicates that the database on the SD card is more current and should be installed.
Page 589 6. Once the database(s) have been updated, the SD card can be removed from the unit 7. The unit must be restarted by pressing the Restart softkey. 8. Repeat steps 1-7 for each installed GDU 37X. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-137...
Page 590 The terrain database contains the elevation data which represents the topography of the earth. This database is updated on an “as needed” basis and has no expiration date. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA...
Page 591: Siriusxm® Activation Instructions (Gdu 375 Only)
3. Hook up the aircraft to external power if available. The complete activation process may take 45- 60 minutes or more, depending on the demand on the SiriusXM activation system. 4. Power on the avionics and allow the G3X to power up. Do not power cycle the units during the activation process.
Page 592: External Interface Configuration (Garmin Units Only)
Section 25.2 for wiring the interface connections between GDU 37X LRUs and any external Garmin units such as the GNS 4XX/5XX, GNS 480, GTN 6XX/7XX, and GTX transponder products. See the Configuration Guidance instructions on the drawings in Section 24.2 Section 25.2...
Page 593 4XX Main VOR/LOC/GS 429 Config Page 5XX Main VOR/LOC/GS 429 Config Page NOTE Each output channel can be used to drive up to three RS-232 devices. 190-01115-01 G3X/G3X Touch Installation Manual - GDU 37X Config and Post Install Checkout Rev. AA Page 31-141...
Page 594 1. With the GTN turned off (circuit breaker pulled), press and hold the HOME key and reapply power to the GTN (push in the circuit breaker). 2. Release the HOME key when the display activates and the name ‘Garmin’ appears fully lit on the screen.
Page 595: Gdu Splash Screen
31.9 Checklist Editor The Aviation Checklist Editor (ACE) is available for free download from the Garmin website www.garmin.com. Click on the Software link on the G3X product page and follow the on-screen instructions to download the checklist editor software. NOTE The checklist file should be named with a ‘.ace’...
Page 596: Section 32 Gdu 45X/46X Configuration And Post Installation Checkout
The checkout procedures in this section are recommended to be performed after installing the G3X. The calibration procedures are required to be performed after installing the G3X. It is assumed that the person performing these checks is familiar with the aircraft, has a working knowledge of typical avionics systems, and has experience using the test equipment defined in this section.
Page 597: Recommended Test Equipment
After all configuration changes have been made, use the Save & Reboot (Section 32.4.26) button to save all changes and return to normal mode. Figure 32-1 Configuration Mode Page 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-2...
Page 598 3. The unit will reboot, then GDU software update will begin automatically. 4. Ensure power is not removed while the update is being performed 5. The unit will reboot after the update is complete. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-3...
Page 599 SW update may damage the GDL 39/39R causing it to be non-functional. Figure 32-2 GDL 39 SW Update Status 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-4...
Page 600: Configuration
2. Press the “-” or “+” buttons to increase or decrease the setting. 3. Press anywhere on the Touch Panel other than the slider bar (or the Back key) to return to the Configuration Page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-5...
Page 601 Touch Panel or a Move Selector Knob. 2. Press the Back key to return to the Configuration Mode page when finished (if desired). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 602 Electrical Control System must be enabled to display the Flaps, External Lights, and Cockpit Lighting configuration pages, as well as the GAD 27 tab on the Engine Information System Configuration page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-7...
Page 603 4. Press the Back key to return to the Configuration Mode page when finished (if desired). Section 32.3 (SW loading procedure) and the following sections (Post Installation Calibration Procedures) for further information regarding the ADAHRS Calibration Page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-8...
Page 604 ADAHRS Static Altitude Procedure F is only used when an ADAHRS has Pressure re-calibration failed a periodic altimeter test Calibration 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-9...
Page 605 Any GMU 22 removal or replacement requires repeating the magnetometer calibration. A repeat of the pitch/roll offset procedure (Procedure B) requires a repeat of the magnetometer calibration procedure (Procedure D). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-10...
Page 606 3. Use the Touch Panel or a Move Selector Knob to select the ADAHRS (1, 2, or 3) that is being configured. 4. Use the Touch Panel or a Move Selector Knob to select Unit Orientation. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-11...
Page 607 7. Read the description of the selected orientation to ensure the proper orientation has been selected, then press the Start button to store the orientation. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 608 32.2), this step can be skipped if PFD1 is already in configuration mode. 2. Use the Touch Panel or a Move Selector Knob to select the ADAHRS Calibration Page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-13...
Page 609 Per the following figure, GSU 25 units must have the ADAHRS pitch and roll within 30 degrees of level, GSU 73 units must have the ADAHRS pitch and roll within 3.0 degrees of level. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-14...
Page 610 AHRS units before moving the aircraft. This applies equally to all AHRS units, including the GSU 25, GSU 73, and G5 backup display. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 611 Table 32-3). Use the Touch Panel or a Move Selector Knob to select the ADAHRS (1, 2 or 3) that is being configured. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-16...
Page 612 5. Ensure that the aircraft has been properly prepared per the on-screen instructions. See Table 32-4 for a sample test sequence. Press the Start button to begin the test. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-17...
Page 613 The magnetic deviation value is displayed to indicate the pass or fail margin of the test. Press the Done softkey to return to the ADAHRS Page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 614 Turn off all wing-tip lights simultaneously 5:40 Beacon on 5:50 Beacon off 6:00 Pitot heat on 6:10 Pitot heat off 6:20 End of test 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-19...
Page 615 A maximum deviation value greater than 100% of the total limit in any axis indicates a problem that must be resolved. Compare the corresponding timestamps with the prepared test sequence to identify which action produced the problem. Contact Garmin for assistance in resolving the problem.
Page 616 (west) of the North/South axis to allow turning clockwise around the site as indicated in Figure 32-5. Figure 32-5 Aircraft Alignment 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-21...
Page 617 4. Use the Touch Panel or a Move Selector Knob to select Magnetometer Calibration Test. 5. Ensure that all on-screen instructions have been complied with, then press the Start button to begin the calibration. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-22...
Page 618 This is especially important if something about the airplane has been changed that required a repeat of the Magnetic Calibration Procedure. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 619 Panel or a Move Selector Knob to select the ADAHRS (1, 2 or 3) that is being configured. 4. Use the Touch Panel or a Move Selector Knob to select Engine Run-up Test. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 620 7. Press the Done softkey when engine runup has been completed, the test results will be displayed. Ensure that test results indicate Passed, then press the Done button to return to the ADAHRS page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 621 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-26...
Page 622 The ADAHRS Calibration page (configuration mode) has a selection for ADAHRS Static Pressure Calibration. This procedure is used to perform an altimeter re-calibration. The altitude pressure sensor used in any G3X ADAHRS unit is very low drift and does not typically require re-calibration. NOTE This calibration is only used when an ADAHRS fails a periodic altimeter test and should only rarely, if ever, be used.
Page 623 20K ft. Press NEXT to continue and calibrate this pressure. Actual displayed image will be similar to following figure. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-28...
Page 624 8. When the static pressure calibration is complete, a status screen will show that the procedure was successful. Actual displayed image will be similar to following figure. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 625 2. Use the Touch Panel or a Move Selector Knob to make the desired changes. 3. Press the Back key to return to the Configuration Mode page when finished (if desired). Figure 32-6 AOA Configuration Page 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-30...
Page 626 MEDIUM ANGLE OF ATTACK EXCESSIVE ANGLE OF ATTACK Air Flow is Broken. No Lift to Sustain the Airplane. Figure 32-8 Angle of Attack (AOA) Illustration 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-31...
Page 627 AOA calibration value and less than the stall warning AOA calibration value (see Figure 32-9). Figure 32-9 Angle of Attack Setup Page 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-32...
Page 628 2. Use the Touch Panel or a Move Selector Knob to select the Setup button. 3. Use the Touch Panel or a Move Selector Knob to select the Angle of Attack button. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 629 6. Perform the 3 required calibration points (Minimum Visible AOA Calibration, Caution Alert AOA Calibration, Stall Warning AOA Calibration), plus 1 optional calibration point (Approach Target AOA Calibration, if desired) in the following recommended order. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-34...
Page 630 2. Follow the onscreen instructions, then press the Start button to begin the calibration. 3. Follow the onscreen instructions, then press the Done button when finished. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 631 After calibrating all required AOA points, if the AOA gauge appears too frequently or not frequently enough, the Minimum Visible AOA calibration step can be repeated to set a new value. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-36...
Page 632 2. Follow the onscreen instructions, then press the Start button to begin the calibration. 3. Press the Calibrate button when in compliance with the onscreen instructions. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 633 After calibrating all required AOA points, if the AOA caution alert and audio warning occur too frequently or not frequently enough, the Caution Alert AOA calibration step can be repeated to set a new value. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-38...
Page 634 2. Follow the onscreen instructions, then press the Start button to begin the calibration. 3. Press the Done button when in compliance with the onscreen instructions. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 635 6. If desired, proceed to Approach Target AOA Calibration (Optional). If the Approach Target AOA Calibration procedure is not desired, the AOA Calibration Procedure is complete. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-40...
Page 636 2. Follow the onscreen instructions, then press the Start button to begin the calibration. 3. Press the Calibrate button when in compliance with the onscreen instructions. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 637 4. Verify that the calibration is successful, then press the Done button when finished. 5. This completes the AOA calibration procedure. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-42...
Page 638 4. Select Yes or No to restore default settings. Press the Back key to return to the Configuration Mode page when finished (if desired). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-43...
Page 639 NOTE The following post installation checkout must be followed after every completed installation. These steps should be followed when using a Garmin mounting kit or non- Garmin mounting parts to install the GSA 28. After mounting the GSA 28, please complete the following steps prior to completing the first flight with the GSA 28.
Page 640 “wing-leveler”. The roll servo follows roll steering commands from the G3X display so the airplane will hold a desired roll angle, follow a desired heading, or follow the lateral component of a flight plan.
Page 641 A larger number will cause the yaw servo to more aggressively control the aircraft, and a smaller number will cause the yaw servo to less aggressively control the aircraft. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 642 Step by Step On-Ground Setup Servo Wiring Checkout The first phase of setting up the Garmin autopilot system is to verify the proper wiring of the GSA 28 servos while on the ground. 1. If the installation is a 1-axis (roll only) autopilot, use the LRU page in configuration mode on the PFD to configure the “Autopilot Servos”...
Page 643 The system will compare the CWS/DISCONNECT INPUT from all servos, press and hold the autopilot disconnect button for at least 5 seconds to verify there are no SYNC faults. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 644 Use the aileron trim switch to input a roll right TRIM command. Verify the aileron trim switch properly moves for roll right trim. Verify the Roll servo is properly indicating ROLL RIGHT trim activity. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-49...
Page 645 If the aileron trim response is reversed, go to the Autopilot Configuration page and change the Roll Servo Direction to Reverse, then repeat step all of step 6. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 646 Finally, verify the electric trim motor responds in the proper directions by pressing the Test Trim Movement button, then using the Trim Roll Left and Trim Roll Right buttons on the Autopilot Configuration page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-51...
Page 647 Use the elevator trim switch to input a nose up TRIM command. Verify the elevator trim switch properly moves for nose up trim. Verify the Pitch servo is properly indicating NOSE UP trim activity. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-52...
Page 648 If the elevator trim response is reversed, go to the Auto Configuration page and change the Pitch Servo Direction to Reverse, then repeat step all of step 7. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 649 Finally, verify the electric trim motor responds in the proper directions using the Trim Pitch Up and Trim Pitch Down buttons on the Autopilot Configuration page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 650 Use the rudder trim switch to input a yaw right TRIM command. Verify the rudder trim switch properly moves for yaw left trim. Verify the Yaw servo is properly indicating YAW RIGHT trim activity. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-55...
Page 651 If the rudder trim response is reversed, go to the Autopilot Configuration page and change the Yaw Damper Servo Direction to Reverse, then repeat step all of step 8. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 652 Finally, verify the electric trim motor responds in the proper directions using the Trim Yaw Left and Trim Yaw Right buttons on the Autopilot Configuration page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 653 BANK LEFT BANK RIGHT Figure 32-15 Reversed Roll Servo Direction 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-58...
Page 654 NOSE DOWN NOSE UP Figure 32-17 Reversed Pitch Servo Direction 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-59...
Page 655 NOSE LEFT NOSE RIGHT Figure 32-19 Reversed Yaw Damper Direction 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-60...
Page 656 The min airspeed limit should be set above the stall speed of the aircraft with some margin. b) The max airspeed limit should be set below the never exceed speed of the aircraft with some margin. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-61...
Page 657: Autopilot Setup
32.4.7.4 Autopilot Setup The next phase of setting up the Garmin autopilot system is to verify the proper functionality of the autopilot system on the ground in normal mode. This phase of the checkout requires a valid aircraft heading and pitch output from the ADAHRS. This means the post installation procedures must have already been completed on the ADAHRS before performing the on ground autopilot normal mode checkout.
Page 658 10. Verify the stick properly moves toward the tail and toward the right wing smoothly with no control system binding. Figure 32-22 Nose Up, Right Bank 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-63...
Page 659 Press the MENU key two times on the GDU to enter the MAIN MENU page. b) Press the Setup button. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-64...
Page 660 16. Engage the autopilot and verify that it properly disconnects with a short press and release of the CWS/DISCONNECT button. a) If the audio output of the G3X system is connected to the aircraft audio system, verify the pilot hears an autopilot disconnect tone when disconnecting the autopilot.
Page 661 Yaw Damper Setup The next phase of setting up the Garmin autopilot system is to verify the proper functionality of the yaw damper system on the ground in normal mode. This phase of the checkout requires a valid output from the ADAHRS.
Page 662 Press the MENU key two times on the GDU to enter the Main Menu page. b) Press the Setup button. c) Press the Autopilot button. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-67...
Page 663 CWS/DISCONNECT button. a) If the audio output of the G3X system is connected to the aircraft audio system, verify the pilot hears an autopilot disconnect tone when disconnecting the autopilot.
Page 664 32.4.7.6 Step By Step In-Air Autopilot Setup The next phase of setting up the Garmin autopilot system is to verify and tune the proper functionality of the autopilot system in the air. WARNING This stage of the flight test involves allowing the GSA 28 autopilot servos to manipulate the flight control surfaces of the aircraft.
Page 665 See preceding note to access the expert settings. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-70...
Page 666 Press the MENU key two times on the GDU to enter the Main Menu page. c) Press the Setup button. d) Press the Autopilot button. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-71...
Page 667 See preceding note to access the expert settings. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-72...
Page 668 4. Set the vertical speed gain lower to make the autopilot less aggressive if the control is too “harsh” or more responsive than desired. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-73...
Page 669 See preceding note to access the advanced/expert settings. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-74...
Page 670 Yaw Damper Setup The next phase of setting up the Garmin yaw damper system is to verify and tune the proper functionality of the yaw damper system in the air. WARNING This stage of the flight test involves allowing the GSA 28 autopilot servos to manipulate the flight control surfaces of the aircraft.
Page 671 1.Press the LVL button on the GMC 30X to engage the AP in LVL mode 2.Press the YD button on the GMC 30X to disengage the YD 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 672 Fly a yaw doublet and engage the YD as the ball swings through the center 1.Right foot rudder to swing ball left 2.Left foot rudder to swing ball back right 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-77...
Page 673 See preceding note to access the advanced/expert settings. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-78...
Page 674 32.4.7.7 In Air Setup The next phase of setting up the Garmin GSA 28 based trim control system is to verify and set the proper functionality of the trim system in the air. WARNING This stage of the flight test involves allowing the GSA 28 autopilot servos to manipulate the flight control surfaces of the aircraft.
Page 675 Trim aircraft using manual electric trim inputs ii. Trim response should not be overly slow iii. Trim response should not be overly fast 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-80...
Page 676 GMC 30X AP button or the softkeys on the PFD display. Figure 32-25 General Autopilot Configuration Page 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-81...
Page 677 (configuration mode only) The Trim Motor Control should be disabled if the GSA 28 roll servo was not connected to an auxiliary trim motor. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-82...
Page 678 If the installer notices the aircraft doing very small oscillations, the Fine Adjust Time and Fine Adjust Amount can be used to correct this. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-83...
Page 679 Figure 32-26 Roll Servo Autopilot Configuration Page Figure 32-27 Trim Configuration Page 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-84...
Page 680 The Trim Motor Control should be disabled if the GSA 28 pitch servo was not connected to an auxiliary trim motor. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-85...
Page 681 If the installer notices the aircraft doing very small oscillations, the Fine Adjust Time and Fine Adjust Amount can be used to correct this. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-86...
Page 682 Figure 32-28 Pitch Servo Autopilot Configuration Page 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-87...
Page 683 The Trim Motor Control should be disabled if the GSA 28 yaw damper servo was not connected to an auxiliary trim motor. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-88...
Page 684 Accel Filter Constant is an expert level setting, and should generally be not be changed by the installer, the default value is 0.16. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-89...
Page 685 Figure 32-29 Yaw Damper Autopilot Configuration Page 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-90...
Page 686 The Airspeed Accel Gain should be increased if the aircraft is appears to back off from the desired airspeed target when closing on the bug. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 687 The Airspeed Track Gain should be decreased if the aircraft is overly aggressive while tracking airspeed when the airspeed error is less than 5 knots. Figure 32-30 Pitch Gain Autopilot Configuration Page 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-92...
Page 688 The default value for both settings is 5 degrees. These fields will appear only if a discrete input is configured for the AFCS TO/GA function. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 689 Mode, moving the pitch wheel on the GMC 30X, or the on-screen buttons results in a change to VS mode for a climb or descent to a new altitude. See the G3X Touch Pilot's Guide for further details. Figure 32-32 Default Vertical Speed...
Page 690 See the G3X Touch Pilot’s Guide (190-01754-00) for details of ESP operation. ESP is configured on the Electronic Stability Configuration page in Configuration Mode per the following procedure.
Page 691 Level Mode to bring the aircraft into level flight if ESP has been engaged for more than 15 seconds of a 30 second time period. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 692 NOTE Ensure basic autopilot functionality is properly adjusted before enabling trim control for any servo. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-97...
Page 693 Servo column are also available from the Autopilot Configuration Page. Changing the settings from either configuration page has the same effect on trim direction 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-98...
Page 694 1. Go to the AP pages in configuration mode and enable the Trim Motor Control for all servos that are connected to auxiliary trim motors. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 695 Recommend setting the slowest motor speed to 25% (will be adjusted later in flight) 3. Re-verify proper trim movement in described in Section 32.4.7.3 Steps 6, 7, & 8. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-100...
Page 696 Figure 32-34 Trim Configuration Page 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-101...
Page 697 There must be intermediate flap positions configured (more than only 0 and Full) for the partial flap maximum airspeed selection to be available. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-102...
Page 698 G-Meter to appear in place of the HSI when G-loads on the aircraft exceed a fixed threshold (setting Auto Display to Off disables Auto Display of the G-Meter). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 699 VNE has been entered as 205 knots indicated airspeed. The aircraft is below the never-exceed speed any time its indicated airspeed is below 205 knots. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 700 Mach limit even if its indicated airspeed is below the normal indicated VNE "red line". The second red band on the PFD airspeed tape alerts the pilot to this condition. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 701 2. Use the Touch Panel or a Move Selector Knob to select the desired configurable item and make the desired change. 3. Enter data (where applicable) using the Keyboard (Section 32.4.1) or Slider Bar (Section 32.4.2). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-106...
Page 702 5. To edit or delete a station, press the Edit Button. 6. Press the Back key to return to the Configuration Mode page when finished (if desired). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 703 2. Use the Touch Panel or a Move Selector Knob to select the desired configurable item and make the desired change. 3. Press the Back key to return to the Configuration Mode page when finished (if desired). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-108...
Page 704 (in normal mode) lists the setting as PFD Startup Mode. Selecting any setting other than User Selected disallows the selection of PFD Startup Mode on the Display Setup page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 705 PFD HSI Orientation–Allows setting the PFD HSI Orientation to either Heading or User Selected (default). The Heading selection displays the HSI (on the PFD) in a heading-up orientation. The User Selected setting enables an HSI Orientation option on the PFD Setup page, see the G3X Touch Pilot’s Guide (190-0174-00) for more info.
Page 706 (X) axis. The graph changes according to the auto backlight control settings, and the lighting bus voltage. Input Level–Displays the current lighting bus voltage Backlight Level–Displays the current backlight level (0-100%) 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-111...
Page 707 Backlight Level of 100%. If the value is set to 0 V, the value will be ignored and the display brightness will remain at the Lighting Bus Min level for any input level between 0 V and the Min Brightness level. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-112...
Page 708 Traffic N/A Alert–Enables/disables Traffic Not Available alerts AOA Alert–Enables/disables AOA Alert tone Altitude Alert–Enables/disables the Altitude Alert tone Minimums Alert–Enables/disables the Altitude Minimums tone 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-113...
Page 709 Alert Output–If set to Mono & Stereo, alert tones and messages will be output on both the mono and stereo outputs. If set to Mono Only, alert tones and messages will be output only on the mono output. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 710 Use the Touch Panel or a Move Selector Knob to select the desired RS-232 channel, the optional settings are: Garmin Data Transfer - The proprietary format used to exchange data with a PC or a GDL 39 Garmin Instrument Data - Used for connecting to compatible Garmin LRUs (e.g. GSU 25, GMC 30X) GTN Connext 2 - Used for connecting a GDU 4XX display to a GTN 6XX/7XX for performing Connext functions, such as flight plan transfer.
Page 711 Fast (every second): GPBOD, GPRMB, GPRMC, PGRMH, PGRMZ Normal (every two seconds): GPAPB, GPBOD, BPBWC, GPGGA, GPGLL, GPGSA, GPGSV,GPRMB, GPRMC, GPRTE, GPVTG, GPWPL, GPXTE, PGRME, PGRMH, PGRMM, PGRMZ 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-116...
Page 712 Appendix Aviation In - The proprietary format used for input to the G3X (baud rate of 9600) from an FAA certified Garmin panel mount unit. Allows the G3X to display a Go To or route selected on the panel mount unit, which eliminates the need to enter the destination on both units.
Page 713 Highlight the ‘GPS1’, ‘GPS2’, etc. fields on the Main Configuration page to verify which RS-232 and ARINC 429 inputs the G3X system is currently using for NAV 1 and NAV 2. Vertical Power – A 3rd party LRU that integrates with the G3X to monitor and control the entire electrical system via the GDU.
Page 714 Menu key) is used to determine if the EFIS/Airdata output is addressed to NAV 1, NAV 2, or both (NAV 1+ 2). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 715 377 Equipment ID ARINC 429 Inputs: Garmin GPS–Receives GPS labels from a GNS 400/500, GNS 480, or GTN 600/700 series unit. A second selection is used to determine if the GPS input is from NAV 1 or NAV 2. Garmin VOR/ILS–Receives VOR/ILS labels from a GNS 400/500,GNS 480, or GTN 600/700 series unit.
Page 716 (disabled), or if the system should always return to using the configured external GPS nav source at powerup (enabled). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 717 1. Power on the unit in configuration mode and use the Touch Panel or a Move Selector Knob to view GPS Status on the System Information Page. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 718 GPS Status may also be monitored on the Info page in normal mode. The signal strength bars are a real-time representation of GPS signal strength, which may be useful for troubleshooting a failed COM interference test. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-123...
Page 719 Select None if on-screen radio control for a particular radio is not desired or no radio is installed. Network Radio LRU 1 and Network Radio LRU 2 settings support Garmin radio LRUs that are connected via the CAN bus, (GTR 20 and GTR 200) see Table 32-11.
Page 720 Emergency Volume - Used to set the COM radio volume that will be used if the GTR 20 has automatically tuned the emergency frequency as a result of losing communication with the G3X system. Transmit Sidetone - Used to set the volume of the sidetone audio during transmit.
Page 721 AUX 1/2 Mutes Music - These settings when enabled, will mute the music input if AUX1 or AUX2 input levels are sufficient to break aux squelch. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 722 Mode S Address Type. Flight ID: If flight ID Mode is set to Other, this field appears to allow entry of Flight ID. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 723 BDS information) items that are marked “ES Enabled Units Only” are not active (no extended squitter). When ADS-B is set to PILOT SET, ADS-B transmissions are active at power-on. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-128...
Page 724 A "Configuration Error" indication is most commonly the result of one or more items on the transponder configuration page which have been left un-configured. For proper transponder operation, all items on this page must be properly configured. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-129...
Page 725 3. Enter data (where applicable) using the Keyboard (Section 32.4.1) or Slider Bar (Section 32.4.2). Press the Back key to return to the Configuration Mode page when finished (if desired). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-130...
Page 726 These files can be opened in Excel, or imported into Google Earth for viewing using the Garmin Flight Log Conversion tool. The tool and instructions needed to import the files into Google Earth are available from the G3X Product Page found on the Garmin website www.garmin.com.
Page 727 (Section 32.4.1) or Slider Bar (Section 32.4.2). 5. Press the Back key to return to the Configuration Mode page when finished (if desired). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-132...
Page 728 EIS display (engine bar). Other gauges will be displayed as space permits based on a pre- defined priority and user selections. Oil Temperature Oil Pressure Fuel Quantity 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-133...
Page 729 EIS LRU type (GEA 24, Figure 32-37 or GSU 73, Figure 32-40) will be displayed. Figure 32-37 GEA 24 Engine/Airframe Input Configuration Page Figure 32-38 GAD 27 Engine/Airframe Input Configuration Page 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-134...
Page 730 EIS configuration values. See Section 32.4.25.3 for calibration information, Engine Time Configuration, and Total Airframe Time Configuration information. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-135...
Page 731 Yellow Line Red Line Gauge Display Range – The Gauge Display Range allows for setting the minimum and maximum values of each gauge. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-136...
Page 732 EIS LRU #1 only. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-137...
Page 733 Assist setting to "Enabled". (see Lean Assist for more information). Turbine Interstage Temperature (ITT): This option is available on the TIT 1 input. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-138...
Page 734 Kavlico pressure sensors are provided, or if "Misc Press (Custom)" is selected, the installer can enter up to 8 points of voltage-to-pressure calibration. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-139...
Page 735 Jabiru / VDO 320-021 (or similar VDO 50-150°C thermistor sensor) Rotax 912iS: For the GEA 24, select "Rotax FADEC" to use oil temperature data from the Rotax 912iS FADEC interface. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-140...
Page 736 Thermistor (any 50-150°C thermistor such as the Rotax 965531, 966385, or the VDO 320-XXX series) • UMA 1B10R, UMA 1BXR-C (or any Pt100-type RTD sensor) • Type J or Type K thermocouple 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-141...
Page 737 Vertical Power: When using a Vertical Power unit, trim and flap positions will automatically be displayed. Connecting, configuring, and calibrating the POS inputs is not required when the position sensors are connected to a Vertical Power unit. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-142...
Page 738 Amps" or "Vertical Power Bus 1 Amps" to use primary bus current data from the Vertical Power unit. Configure Shunt 2 to "Vertical Power Bus 2 Amps" to use secondary bus current data from the Vertical Power unit. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-143...
Page 739 Active Low. See Section 23.5.9 Section 23.13.5.1 for the specific voltage levels used for discrete input sensing on the GEA 24 and GSU 73. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-144...
Page 740 AFCS TO/GA - Used in conjunction with the automatic flight control system (AFCS) flight director to activate Takeoff or Go-Around mode. This input should be connected to a momentary pushbutton located near the pilot's throttle control. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-145...
Page 741 25° C (77° F). If pitot heat is powered off or inoperative, the green "PITOT HEAT" indication will not appear. Figure 32-41 Configuration #1 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-146...
Page 742 Lean Assist is enabled, the LEAN softkey will appear on the ENG page in normal mode. Lean Assist should be disabled for engines that do not have pilot-controllable air/fuel mixture. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 743 Select “FADEC” to display power information from a FADEC engine. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-148...
Page 744 This type of engine time recording is typical for turbine engine applications. For turbine engine applications, only the RPM1 value affects engine time recording. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-149...
Page 745 2. Press the Engine Time Bar. 3. Select Menu, Show Advanced Setting (to enable editing of Engine Time field). 4. Edit Current Hours and Select Save. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-150...
Page 746 2. Press the Total Time Bar. 3. Select Menu, Show Advanced Setting (to enable editing of Total Time field). 4. Edit Current Hours and Select Save. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-151...
Page 747 RPM difference to be configured. Smaller values for the Maximum Difference field make the propeller sync indicator more sensitive. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-152...
Page 748 32.4.25.3 Input Configuration Items Requiring Calibration Fuel Quantity Calibration – The G3X has two fuel calibration curves, the standard ‘in-flight’ or normal flight attitude calibration curve and an optional ‘on-ground’ or ground/taxi attitude calibration curve. The ground/taxi calibration curve can be used for aircraft that have a significantly different attitude when on the ground, such as tailwheel aircraft.
Page 749 Write Calibration File – Stores fuel quantity calibration data to a file on the SD card. Calibration data is saved to the /Garmin/cal/ directory on the card. This data storage must be repeated for each calibrated tank (if backup is desired).
Page 750 Factor must generally be adjusted up or down to increase the accuracy of the fuel flow calibration. If the fuel usage reported by the G3X differs from the actual fuel usage, as measured at the fuel pump (or other trusted method of measurement), use the following formula to calculate a corrected K-Factor, which can then be used to calibrate the fuel flow.
Page 751 To delete a calibration value, highlight the desired data in the list, and press the Delete Key. Then press Yes on the pop-up window, the calibration data is removed. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 752 If the resulting current value is less than the deadband value, the displayed current will be zero. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 753 0.01 V/deg. In this example the gauge spans from 0 to 45 degrees of timing advance with tick marks at 20 degrees and 40 degrees. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 754 In this example the gauge spans from 0 to 2000 psi with green, yellow, and red + alert ranges. This example would connect a 0-5V, 0-2000 PSI sensor to the MISC PRESS input. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 755 In this example the gauge spans from 0 to 108 psi with green, yellow, red , and a red + alert range. This example would connect a Kavlico P4055-150G pressure sensor to the MAN PRESS input. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 756 For example, if the recommended warmup time for a lighting system is 22 seconds, then the 25 second option should be selected. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-161...
Page 757 (the plotted line can only go up and to the right). Points that are acceptable by the system are displayed in green. Points that have potential issues are displayed in yellow. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 758 Touch Panel or a Move Selector Knob. 2. Press the Back key to return to the Configuration Mode page when finished (if desired). 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 759: Garmin Database Updates
(www.fly.garmin.com). The ‘flyGarmin’ website requires entering the System ID to update databases. This allows the databases to be encrypted with the G3X system’s unique System ID when copied to the SD Card. The System ID is displayed on the Database Information Page in normal mode, and on the System Information Page in configuration mode.
Page 760 6. Once the database(s) have been updated, the SD card can be removed from the unit 7. The unit must be restarted by pressing the Back key. 8. Repeat steps 1-7 for each installed GDU 45X/46X. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-165...
Page 761 The terrain database contains the elevation data which represents the topography of the earth. This database is updated on an “as needed” basis and has no expiration date. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA...
Page 762: Siriusxm® Activation Instructions (Gdu 455/465 Only)
3. Hook up the aircraft to external power if available. The complete activation process may take 45- 60 minutes or more, depending on the demand on the SiriusXM activation system. 4. Power on the avionics and allow the G3X to power up. Do not power cycle the units during the activation process.
Page 763: External Interface Configuration (Garmin Units Only)
Section 25.2 for wiring the interface connections between GDU 45X/46X LRUs and any external Garmin units such as the GNS 4XX/5XX, GNS 480, GTN 6XX/7XX, and GTX transponder products. See the Configuration Guidance instructions on the drawings in Section 24.2 Section 25.2...
Page 764 4XX Main VOR/LOC/GS 429 Config Page 5XX Main VOR/LOC/GS 429 Config Page NOTE Each output channel can be used to drive up to three RS-232 devices. 190-01115-01 G3X/G3X Touch Install Manual - GDU 45X/46X Config and Post Install Checkout Rev. AA Page 32-169...
Page 765 1. With the GTN turned off (circuit breaker pulled), press and hold the HOME key and reapply power to the GTN (push in the circuit breaker). 2. Release the HOME key when the display activates and the name ‘Garmin’ appears fully lit on the screen.
Page 766 32.8 Checklist Editor The Aviation Checklist Editor (ACE) is available for free download from the Garmin website www.garmin.com. Click on the Software link on the G3X product page and follow the on-screen instructions to download the checklist editor software. NOTE The checklist file should be named with a ‘.ace’...
Page 767: Section 33 Troubleshooting
A Garmin Field Service Engineer may ask the technician to download the fault logs to a PC and email the logs back to Garmin to help determine if the condition is caused by a G3X LRU or in the aircraft.
Page 768: Can Network Troubleshooting
If the labels weren’t the cause, determine what brand of SD card was being used (Garmin recommends using SanDisk® brand cards). 33.3.2 Unit Communication Error Messages (Two or Three GDU Systems) Error messages occur if there is a mismatch in GDU software versions.
Page 769: Air Data Troubleshooting
2. Check configuration module wiring for damage, replace if any is found. 3. Replace the GTP 59 OAT probe. 4. If the problem persists, replace the ADAHRS with a known good unit. Figure 33-1 Invalid OAT & TAS Indications 190-01115-01 G3X/G3X Touch Installation Manual - Troubleshooting Rev. AA Page 33-3...
Page 770: Engine Indication Troubleshooting
33.5 Engine Indication Troubleshooting To troubleshoot an Engine Indication failure (Figure 33-3), gather answers to the following questions. This information may be helpful to the installer/pilot, the G3X Dealer, or to Garmin Aviation Product Support in troubleshooting the failure. Figure 33-3 Engine/Airframe Failure Indications (Reversionary or Split-Screen PFD) 1.
Page 771: Adahrs Troubleshooting
If the GMU 22 heading is not present on the GDU, there may be a problem with the RS-232 or RS-485 line between the ADAHRS and GMU 22. Troubleshoot any possible wiring/connector issues before replacing either unit. 190-01115-01 G3X/G3X Touch Installation Manual - Troubleshooting Rev. AA Page 33-5...
Page 772 • ADAHRS extended operation in no-GPS mode 8. Did the onset of the problem occur shortly after a software upload to one or more of the G3X LRU’s, or shortly after a repeat of the magnetometer calibration procedure? 9. Were there any GPS Alert messages or loss of position lock?
Page 773: Post Installation Calibration Procedures
ADAHRS and GMU, and does not account for all possible vibration profiles that may be encountered during normal aircraft operation 190-01115-01 G3X/G3X Touch Installation Manual - Troubleshooting Rev. AA Page 33-7...
Page 774: Gsu 73 Data Logging
Connect one end of a USB cable to the USB port of the PC, and the other end to the mini-USB connector on the GSU 73. The cable can be connected before or after the PC and the G3X are powered on.
Page 775 5. After the region download process has completed, ‘Recording!’ is displayed and the logging tool begins storing received data in the specified log file. 6. Click on the Stop button to end the data recording session. Figure 33-8 Data Logger, Recording Screen 190-01115-01 G3X/G3X Touch Installation Manual - Troubleshooting Rev. AA Page 33-9...
Page 776: Sending Troubleshooting Data To Garmin
Figure 33-9 Data Logger, Connection Screen 33.8.3 Uploading the Data File To upload a data file created with the GSU 73 Data Logging Tool, return to the G3X product page (on the Garmin website www.garmin.com) and select the Data Log Upload Form.
Page 777: Section 34 Maintenance
This procedure is recommended when the static system is opened up (i.e. whenever the GSU 25 is removed or replaced). Garmin also recommends that a leak test be performed following any maintenance action in which the pitot or AOA pneumatic lines are opened up (i.e. whenever the GSU 25 is removed or replaced).
Page 778 Alternatively, the IGRF model can be updated by the end user via the Garmin website (www.garmin.com), it is not necessary to return the GSU 73 to Garmin for this update. Otherwise maintenance of the GSU 73 is ‘on condition’ only.
Page 779 14 CFR Part 91.413, a special transponder ground maintenance test mode is provided. To access ground maintenance mode in a G3X Touch system with GDU 4XX displays: 1. Access the Transponder page, press the Menu key.
Page 780: Return To Service Information
NavData, terrain, and obstacle databases. If the correct software version is not installed, update the displays to the current G3X system software available on the web. No configuration is required if the configuration module is still operational. Continue to Section 34.2.2.
Page 781 34.2.1.5 GDU 37X Replaced with New GDU 4XX NOTE A G3X system installation can use either GDU 37X or GDU 45X/46X displays, but a G3X system installation cannot use both GDU 37X and GDU 45X/46X displays simultaneously. Data written to the config module by a GDU 37X display cannot be read by a GDU 4XX. Before...
Page 782 If the GMU 22 is removed, the anti-rotation properties of the mounting screws must be restored. This may be done by replacing the screws with new Garmin P/N 211-60037-08. If original screws must be re-used, coat screw threads with Loctite 242 (blue) thread- locking compound, Garmin P/N 291-00023-02, or equivalent.
Page 783 No additional action is required when a GAD 29 is reinstalled or replaced. The correct GAD 29 software version and ARINC 429 configuration will automatically be loaded from the GDU. 34.2.8 GMC 30X No additional action is required when a GMC 30X is reinstalled or replaced. 190-01115-01 G3X/G3X Touch Installation Manual - Maintenance Rev. AA Page 34-7...
Page 784: Appendix A Airframe Specific Installation Guidance
Garmin has included in this manual some installation guidelines to aid the builder in the placement of various units which make up the G3X. It is at the discretion of the builder whether he or she wants to follow a typical layout or design an installation completely unique to their aircraft. The following information is provided as guidance only and does not account for variations in specific installations.
Page 785: A.2 Van's Aircraft
A.2.1 RV-7/9 A.2.1.1 GMU 22 Mounting Bracket An RV-7/9 GMU 22 Mounting Bracket Kit is available under Garmin part number 011-01796-00, see Figure A-1. The aft deck was chosen as an installation location, as it provides a level pitch and roll reference and acceptable separation from excessive magnetic disturbances.
Page 786 A.2.3 RV-12/14 Consult Van’s Aircraft for information regarding GMU 22 mounting brackets for RV-12/14 aircraft. 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-3...
Page 787: A.3 Lancair Aircraft
It is recommended the wingtip antenna option be omitted from this wingtip to prevent interference with the magnetometer. Figure A-3 Lancair IV/IV-P Right Wingtip GMU 22 Installation 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-4...
Page 788 2. Attach the GMU 22 to the Top Bracket Assembly (115-01052-00) using screws (211-60037-08) as shown in Figure A-5. Figure A-5 Lancair IV/IV-P GMU 22 Mounting Bracket 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-5...
Page 789 5. Refrain from installing any ferrous metals near the GMU 22, including the mounting screws and nut plates used to attach the wingtip. Stainless steel fasteners are recommended. 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-6...
Page 790 Lancair ES/ES-P A.3.2.1 GMU 22 Mounting Bracket The Lancair ES/ES-P uses the G3X generic GMU 22 mount. The mount is comprised of two sheet metal parts, a bottom bracket (Garmin part number 115-00939-00) and a top bracket (Garmin part number 115-01017-00) that holds the GMU 22 mounting plate.
Page 791 5. Rivet the GMU 22 Installation Rack (115-00481-X0) to the Top Bracket Assembly (115-01017-00) as shown in Figure A-9. Figure A-9 GMU 22 Installation Rack (ES/ES-P) 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-8...
Page 792 GMU 22 up (plus) from the mounting surface or down (minus) from the mounting surface. Figure A-11 Adjusting for Wing Dihedral 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-9...
Page 793 8. Attach the GMU 22 to the GMU 22 Mounting Bracket as illustrated in Figure A-13 using brass screws. Figure A-13 Secure GMU 22 to the Mounting Bracket Assembly 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-10...
Page 794 Make sure there is sufficient head room for the pig tail to bend clear of the wing tip. 13. Match drill the Magnetometer Bracket to the wing rib. 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-11...
Page 795 The wing tip should also be attached with stainless steel hardware (nut plates and screws). NOTE Never use a magnetic screwdriver to remove or install wingtip hardware. 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-12...
Page 796 Figure A-20. MAGNETOMETER SHELF (REF) MAGNETOMETER SHELF (REF) Figure A-20 View Looking AFT At Recommended Magnetometer Location 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-13...
Page 797 When aligning the shelf, ensure the shelf remains level to within 3° of the pitch and roll axes. FILL WITH EPOXY/FLOX MIXTURE Figure A-22 Fill Detail For Corner Radii And Magnetometer Shelf 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-14...
Page 798 Figure A-24. The alignment of the magnetometer is critical and needs to be within 0.5° of the aircraft’s forward direction. MAGNETOMETER SHELF ELEVATOR CONTROL TUBE Figure A-24 Alignment Of Magnetometer Cutout With Aircraft’s Forward Direction 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-15...
Page 799 GMU 22 Magnetometer unit installation. NOTE The GMU 22 Installation Rack must be set, drilled, and installed after the shelf has been mounted in the aircraft and cured. 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-16...
Page 800 INSTALLATION RACK MAGNETOMETER SHELF (REF) 3X AN960C6 WASHERS 3X 6-32 STAINLESS NUTS (MS21083C06 OR EQUIVALENT) Figure A-27 Assembly Of GMU 22 Installation Rack To Magnetometer Shelf 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-17...
Page 801 8. Install the GMU 22 Magnetometer in the installation rack with the hardware provided as shown in Figure A-28. 211-60037-08 SCREW 6-32 x .25 BRASS (3X) GMU 22 MAGNETOMETER MAGNETOMETER SHELF (REF) Figure A-28 Installation Of GMU 22 Magnetometer 190-01115-01 G3X/G3X Touch Installation Manual - Airframe Specific Installation Guidance Rev. AA Page A-18...
Page 802: Appendix B Rs-232 Text Output Format
Carriage return (0x0D hex) • Line feed (0x0A hex) An exception to the above is the GPS Data message, which is backwards compatible with the Garmin Simple Text Output format described at:http://www8.garmin.com/support/text_out.html. The GPS Data Message has the following general format: •...
Page 803: B.4 Attitude/Air Data Message Format
Outside air 1 degree C temperature Altimeter setting 0.01 inHg offset from 27.50" sum of all previous Checksum ASCII hex bytes CR/LF 0x0D / 0x0A Total length 190-01115-01 G3X/G3X Touch Installation Manual - RS-232 Text Output Format Rev. AA Page B-2...
Page 804: B.5 Engine Data Message Format
-999 +999 CHT2 1 degree C -999 +999 EGT2 1 degree C -999 +999 CHT1 1 degree C -999 +999 EGT1 1 degree C -999 +999 190-01115-01 G3X/G3X Touch Installation Manual - RS-232 Text Output Format Rev. AA Page B-3...
Page 805 1 = active, 0 = inactive Discrete input 4 1 = active, 0 = inactive Unused sum of all previous Checksum ASCII hex bytes CR/LF 0x0D / 0x0A Total length 190-01115-01 G3X/G3X Touch Installation Manual - RS-232 Text Output Format Rev. AA Page B-4...
Page 806: B.6 Gps Data Message Format
North/south velocity 'N' for north or 'S' for south direction North/south velocity 0000 9999 magnitude meters/sec Vertical velocity 'U' for up or 'D' for down direction 190-01115-01 G3X/G3X Touch Installation Manual - RS-232 Text Output Format Rev. AA Page B-5...
Page 807 Width Units Notes Vertical velocity 0.01 0000 9999 magnitude meters/sec CR/LF 0x0D / 0x0A Total length For more information on the GPS Data message, see http://www8.garmin.com/support/text_out.html 190-01115-01 G3X/G3X Touch Installation Manual - RS-232 Text Output Format Rev. AA Page B-6...
Page 808: Appendix C Lru Performance Specifications/Licensing/Compliance
APPENDIX C LRU PERFORMANCE SPECIFICATIONS/LICENSING/ COMPLIANCE This section contains various performance specification, licensing, and compliance info for the G3X LRUs. C.1 GAD 29 C.1.1 Environmental Specifications The GAD 29 has an Operating Temperature Range of -45° C to +70° C C.2 GAP 26...
Page 809: C.4 Gdu 45X/46X
C.6.1 Environmental Specifications Table C-3 GMC 305/307 Environmental Specification Characteristics Specifications Operating Temperature Range -45°C to +70°C Humidity 95% non-condensing Altitude Range -1,500 ft to 55,000 ft 190-01115-01 G3X/G3X Touch Installation Manual - LRU Perf Specs/Licensing/Compliance Rev. AA Page C-2...
Page 810 300 Knots Indicated Airspeed Aircraft Mach Range <1.00 Mach Aircraft Total Air Temperature Range -85° C to +85° C Unit Operating Temperature Range -45° C to +70° C 190-01115-01 G3X/G3X Touch Installation Manual - LRU Perf Specs/Licensing/Compliance Rev. AA Page C-3...
Page 811 5. North of 70° North latitude between longitude 85° E and 114° E (Northern Russia) 6. South of 55° South latitude between longitude 120° E and 165° E (Region South of Australia and New Zealand) 190-01115-01 G3X/G3X Touch Installation Manual - LRU Perf Specs/Licensing/Compliance Rev. AA Page C-4...
Page 812 5. North of 70° North latitude between longitude 85° E and 114° E (Northern Russia) 6. South of 55° South latitude between longitude 120° E and 165° E (Region South of Australia and New Zealand) 190-01115-01 G3X/G3X Touch Installation Manual - LRU Perf Specs/Licensing/Compliance Rev. AA Page C-5...
Page 813 Table C-10 TSO/ETSO Deviations for the GTP 59 TSO/ETSO Deviation 1. Garmin was granted a deviation from TSO-C106 to use RTCA DO-160D, including changes 1, 2, and 3, instead of RTCA DO-160B as the standard for Environmental Conditions and Test Procedures for Airborne Equipment.
Page 814: C.12 Gtr 20/200
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. 190-01115-01 G3X/G3X Touch Installation Manual - LRU Perf Specs/Licensing/Compliance Rev. AA Page C-7...

Garmin G3X Installation Manual

Inventory of Materials

Installation Preparation

GAD 27 (Flaps/Lights/Trim Controller) Installation

GAD 29 (ARINC 429 Adapter) Installation

GAP 26 (Pitot/Aoa Probe) Installation

GDU 37X (Display Unit) Installation

GDU 45X (Display Unit) Installation

GDU 46X (Display Unit) Installation

GEA 24 (EIS Interface) Installation

Section 10 GI 260 (AOA Indicator) Installation

Section 11 GMC 305 (AFCS Mode Controller) Installation

Section 12 GMC 307 (AFCS Mode Controller) Installation

Section 13 GMU 22 (Magnetometer) Installation

Section 14 GPS 20A (WAAS GPS Position Source) Installation

Section 15 GSA 28 (Autopilot Servo) Installation

Section 16 GSU 25/25B (Ahrs/Air Data Sensor Unit) Installation

Section 17 GSU 73 (Sensor Unit) Installation

Section 18 GTP 59 (Temperature Probe) Installation

Section 19 GTR 20 (VHF Communications Radio) Installation

Section 20 GPS/XM Antenna Installation

Section 21 Engine/Airframe Sensor Installation

Section 22 Connector Installation Instructions

Section 23 LRU Pinouts

Section 24 G3X W/Gsu 25 And/Or GAD 29 Interconnect Drawings

Section 25 G3X W/Gsu 73 Interconnect Drawings

Section 26 G3X W/Gtr 20 Interconnect Drawings

Section 27 Sensor Wiring Examples

Section 28 Lycoming/Continental Sensor Wiring Examples

Section 29 Rotax Sensor Wiring Examples

Section 30 Jabiru Sensor Wiring Examples

Section 31 GDU 37X Configuration and Post Installation Checkout

Section 32 GDU 45X/46X Configuration and Post Installation Checkout

Section 33 Troubleshooting

Section 34 Maintenance

Appendix A Airframe Specific Installation Guidance

Appendix B RS-232 Text Output Format

Appendix C LRU Performance Specifications/Licensing/Compliance

Quick Links

Troubleshooting

Related Manuals for Garmin G3X

Summary of Contents for Garmin G3X