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Garmin Ltd. or its subsidiaries CONFIDENTIAL c/o Garmin International, Inc. This drawing and the specifications contained herein are the property of Garmin Ltd. or its subsidiaries and may not be reproduced or used in whole or in part as 1200 E. 151st Street the basis for manufacture or sale of products without written permission .
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Number Added Declaration of Conformity Clarified TSO table and added boot block part 1.4.1 numbers Corrected I/O designation 4.5.4 Corrected pin names 4.5.5 Added breaker current rating guidance Added breaker note 190-00858-11 GMA 35/35c Installation Manual Rev. H Page i...
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Declaration of Conformity Hereby, Garmin declares that this product is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. To view the full Declaration of Conformity, go to www.garmin.com.
3.2 Antenna Installation......................3-1 3.3 Antenna Cable Connectors ....................3-1 3.4 Electrical Connections ..................... 3-1 3.5 Backshell Assembly ......................3-2 3.6 GMA 35 Unit Installation....................3-3 3.7 Post Installation Configuration & Checkout ..............3-4 3.8 Continued Airworthiness ....................3-6 4 SYSTEM INTERCONNECTS................4-1 4.1 Pin List..........................
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Appendix A INSTALLATION CONSIDERATIONS FOR UPGRADING FROM A GARMIN GMA 340 ................A-1 A.1 Mechanical Considerations.................... A-1 A.2 Electrical Considerations ....................A-1 Appendix B OUTLINE AND INSTALLATION DRAWINGS .....B-1 Appendix C INTERCONNECT DRAWINGS ..........C-1 190-00858-11 GMA 35/35c Installation Manual Rev. H...
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The following table identifies hardware modification (Mod) Levels for the GMA 35. Mod Levels are listed with the associated service bulletin number, service bulletin date, and the purpose of the modification. The table is current at the time of publication of this manual (see date on front cover) and is subject to change without notice.
The GMA 35 provides a speaker output that may be used as a cockpit speaker or for a PA system to address passengers. The GMA 35 also includes a digital recording and playback feature. The GMA 35 allows ICS volume adjustments for pilot, copilot, and passenger.
*Depends on configuration settings 1.3 Technical Specifications It is the responsibility of the installing agency to obtain the latest revision of the GMA 35 Environmental Qualification Form. This form is available directly from Garmin under the following part number: GMA 35 Environmental Qualification Form, Garmin part number 005-00567-01 To obtain a copy of this form, see the dealer/OEM portion of the Garmin web site (www.garmin.com).
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1.3.2 Electrical Characteristics Table 1-2. GMA 35 Electrical Characteristics Characteristic Specification Environmental Compliance RTCA DO-160E and EUROCAE ED-14E Environmental Conditions Software Compliance RTCA DO-178B Level C and D -45°C to +55°C (normal operation) Temperature Range -55°C to +70°C (short term)
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Table 1-3. GMA 35 Speaker Output (1 output, pilot selectable) Aircraft Voltage Speaker Impedance Output Power 8 Ohms Not recommended 4 Ohms 8 Ohms 4 Ohms 10 W Distortion: <10% THD+N full power, <3% THD+N @ 10% power 3dB Frequency Response Bandwidth: 350 Hz to 6.5 kHz 1.3.3...
Aircraft Audio Systems and TSO-C139 Class Ib 006-B0773-5(_) 006-B0773-B(_) Equipment ETSO-C139 except 006-B0773-BA Table 1-6 GMA 35 (011-02299-20) and GMA 35c (011-02299-40) TSO/ETSO Compliance Applicable Applicable LRU LRU Boot Function TSO/ETSO Category SW Part Block Part Number Numbers...
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TSO/ETSO Deviation TSO-C35d 1. Garmin was granted a deviation from TSO-C35d to use FAR §21.607(d) instead of FAR §37.7 as the general rules governing holders of the TSO authorizations. 2. Garmin was granted a deviation from TSO-C35d to use RTCA DO-160E instead of RTCA DO-138 as the standard for Environmental Conditions and Test Procedures for Airborne Equipment.
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1.4.3 Non-TSO Functions These function were tested to RTCA/DO-160E environmental qualifications and were demonstrated only when the GMA 35 is installed as a component of a Garmin Integrated Flight Deck. Table 1-9. GMA 35 Non-TSO Functions Applicable LRU Functions Design Assurance...
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NOTE This device does not contain any user-serviceable parts. Repairs should only be made by an authorized Garmin service center. Unauthorized repairs or modifications could result in permanent damage to the equipment, and void your warranty and your authority to operate this device under Part 15 regulations.
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This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 1-9...
1.5 Reference Documents The following publications are sources of additional information for installing the GMA 35. Before installing the unit, the technician should read all relevant referenced materials along with this manual. Table 1-10. GMA 35 Reference Documents Part Number...
This section contains generic operating instructions for TSO purposes only and is not to be used in place of field operating instructions. NOTE Always refer to applicable airframe specific documentation for instructions on GX000 system operation. This documentation can be found on www.garmin.com. All user interface is accomplished through a separate touchscreen controller. 1.6.1 Intercom Touch the appropriate link arrow to enable the following intercom modes: •...
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5. Touch the Mute Settings Button associated with Music1 or Music2 to display the Mute Settings Window. 6. Select any of the Intercom, Radio Inputs, or Aural Alerts Buttons to select which items will mute Music1 or Music2. 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 1-12...
This section provides hardware equipment information for installing the GMA 35 Audio Panel, related hardware and optional accessories. Installation of the GMA 35 should follow the data detailed in this manual. Cabling is fabricated by the installing agency to fit each particular aircraft. The guidance of FAA advisory circulars AC 43.13-1B and AC 43.13-2B, where applicable, may be found useful for making...
2.3 Installation Considerations The GMA 35 interfaces with various avionics equipment. Fabrication of a wiring harness is required. Sound mechanical and electrical methods and practices are required for installation of the GMA 35. 2.3.1 Marker Beacon Antenna Installation 2.3.1.1 Location Considerations The marker beacon antenna should be mounted on a flat surface on the underside of the aircraft body.
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Table 2-3. Pin and Crimp Tool Part Numbers CRIMP TOOL CRIMP TOOL INSERT Garmin Part Number DANIELS MANUFACTURING CORP 336-00021-00 DMC M22520/2-01 GAGE Garmin Part Number AFM8 CRIMPING TOOL K774 336-00044-00 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 2-3...
2.5 Cooling Air The GMA 35 does not have provisions for attaching cooling air, however the thermal characteristics of the installation should always be assessed. An undesirable thermal condition could be created due to the unit's own internal power dissipation combined with restricted ventilation, or due to heat generated by adjacent equipment.
EMI and provide protection from High-Intensity Radiation Fields (HIRF). The GMA 35 is mounted using its own unit rack (Figure 2-2) which attaches directly to a GTN 7XX unit rack. Refer to Appendix B for installation drawings. The installer must provide any additional remote mounting equipment.
Good aircraft electrical/charging system ground bonding is also important. The wiring diagrams and accompanying notes in this manual should be followed closely to minimize noise effects. 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 2-6...
If the unit is damaged, notify the carrier and file a claim. To justify a claim, save the original shipping container and all packing materials. Do not return the unit to Garmin until the carrier has authorized the claim.
615725 M81969/1-04 NOTES 1. Non-Garmin part numbers shown are not maintained by Garmin and consequently are subject to change without notice. 2. Extracting the #18 and #20 contacts requires that the expanded wire barrel be cut off from the contact. It may also be necessary to push the pin out from the face of the connector when using an extractor due to the absence of the wire.
2. Connect both backshells to the rear plate using the screws provided in the connector kit. 3. Mount the GMA 35 rack to the GTN rack as shown in Appendix B. Refer to the GTN 7XX Installation Manual for GTN installation rack guidance.
3.7 Post Installation Configuration & Checkout NOTE The GMA 35 does not provide valid outputs until the aircraft post installation configuration procedures are completed. 3.7.1 Verify Failsafe Operation with a Mono Headset 1. Remove power to the unit by pulling the audio breaker.
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4. Speak into the pilot’s mic and verify that pilot mic audio is heard in the copilot headset (adjust copilot ICS volume if necessary) and in each passenger headset (adjust passenger ICS volume if necessary). 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 3-5...
ISO (isolation) toggle key, clearance recorder Play key, PA Mute output, PA Mode Selected output, Com Active output, and Middle Marker Sense output. 3.8 Continued Airworthiness Other than for regulatory periodic functional checks, maintenance of the GMA 35 is “on condition” only. 190-00858-11 GMA 35/35c Installation Manual Rev.
PILOT PTC/ICS KEY* IN NAV 1 AUDIO IN HI NAV 1 AUDIO IN LO NAV 2 AUDIO IN HI NAV 2 AUDIO IN LO RCVR 3 AUDIO IN HI RCVR 3 AUDIO IN LO 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-1...
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PASS HEADSET AUDIO OUT LEFT PASS HEADSET AUDIO OUT RIGHT PASS HEADSET AUDIO OUT LO ALERT 2,3,4 AUDIO IN LO ALERT 4 AUDIO IN HI *Indicates Active Low (Ground to activate) 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-2...
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RS-232 IN RS-232 OUT PA MODE SELECTED* OUT COM SWAP/CYCLE* IN RESERVED PLAY KEY* IN MUSIC 1 IN LEFT MUSIC 1 IN RIGHT MUSIC 1 IN LO MUSIC 2 IN LEFT 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-3...
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PASS 3 MIC AUDIO IN LO PASS 4 MIC AUDIO IN HI PASS 4 MIC AUDIO IN LO SPEAKER AUDIO OUT LO SPEAKER AUDIO OUT HI *Indicates Active Low (Ground to activate) 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-4...
Pin Name Connector LIGHTING BUS IN HI J3502 LIGHTING BUS IN LO J3502 This input can be configured to control the brightness of the marker lamp and middle marker sense outputs. 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-5...
RCVR 3 AUDIO IN HI J3501 RCVR 3 AUDIO IN LO J3501 RCVR 4 AUDIO IN HI J3501 RCVR 4 AUDIO IN LO J3501 RCVR 5/PASS 5 MIC IN HI (configurable) J3501 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-6...
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J3502 PILOT HEADSET AUDIO OUT LEFT J3502 PILOT HEADSET AUDIO OUT RIGHT J3502 COPILOT HEADSET AUDIO OUT LO J3502 COPILOT HEADSET AUDIO OUT LEFT J3502 COPILOT HEADSET AUDIO OUT RIGHT J3502 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-7...
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PASS 4 MIC AUDIO IN LO J3502 RCVR 5/PASS 5 MIC IN HI (configurable) J3501 PASS HEADSET AUDIO OUT LEFT J3501 PASS HEADSET AUDIO OUT RIGHT J3501 PASS HEADSET AUDIO OUT LO J3501 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-8...
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4.5.8 Speaker Outputs Table 4-13. Speaker Outputs Pin Name Connector SPEAKER AUDIO OUT LO P3502 SPEAKER AUDIO OUT HI P3502 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-9...
Pin Name Connector COM 1 MIC KEY* OUT P3501 COM 2 MIC KEY* OUT P3501 COM 3 MIC KEY* OUT P3501 PILOT MIC KEY* IN P3501 COPILOT MIC KEY* IN P3502 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-10...
MARKER HI SENS* IN is a discrete digital input that when grounded selects high sensitivity mode on the marker receiver. NOTE When connected to a user interface controller (e.g. GTN 750), MARKER HI SENS* IN is configured for no function. 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-11...
Table 4-20. PA Mute Pin Name Connector PA MUTE* OUT P3502 An active low output that has low-impedance to ground when PA mode is selected AND when the PTT key is pressed. 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-12...
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CYCLE* IN is used to cycle between COM1 MIC, COM2 MIC, and COM3 MIC for installations with three COM radios. Table 4-23. Play Key Pin Name Connector PLAY KEY* IN P3502 An active low input that allows a remote pushbutton to initiate playback of recorded COM audio. 190-00858-11 GMA 35/35c Installation Manual Rev. H Page 4-13...
A.2 Electrical Considerations Below is a list of GMA 340 pins that may need to be modified to accommodate the GMA 35. Refer to Section 4 and Appendix C of this manual for a list of pin functions and interconnect examples.
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