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190-00858-11

GMA 35/35c Installation Manual

Rev. H

Page 1-10

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

Document

190-00858-13

GMA 35 Maintenance Manual

190-01007-02

GTN 7XX Installation Manual

Summary of Contents for GMA 35

Page 1: ... used in whole or in part as the basis for manufacture or sale of products without written permission 190 00858 11 pdf 190 00858 11 GMA 35 Installation Manual H 1 1 JGS 1 20 11 F 9 2 15 Added the GMA 35c 132290 G 10 2 15 Included FCC commetnts 133098 H 3 22 16 Added European Union and Brazil statements 139773 NOTES 1 DESCRIPTION Installation Documentation 2 DISTRIBUTION This document is intended f...

Page 2: ...190 00858 11 March 2016 Revision H GMA 35 35c Installation Manual ...

Page 3: ...ny revision hereto is strictly prohibited 2015 The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of such marks by Garmin is under license Other trademarks and trade names are those of their respective owners Garmin International Inc 1200 E 151st Street Olathe KS 66062 USA Telephone 913 397 8200 Aircraft On Ground AOG Hotline 913 397 0836 Aviation De...

Page 4: ... Page Number s Section Number Description of Change H ii TOC Added Declaration of Conformity 1 5 1 4 1 Clarified TSO table and added boot block part numbers 4 5 4 4 Corrected I O designation 4 7 4 5 4 4 5 5 Corrected pin names C 1 C Added breaker current rating guidance C 3 C Added breaker note ...

Page 5: ...visions of Directive 1999 5 EC To view the full Declaration of Conformity go to www garmin com Anatel Warning Este equipamento opera em caráter secundário isto é não tem direito a proteção contra interferência prejudicial mesmo de estações do mesmo tipo e não pode causar interferência a sistemas operando em caráter primário DEFINITIONS OF WARNINGS CAUTIONS AND NOTES WARNING This product its packag...

Page 6: ...quirements 2 5 2 7 Installation Approval Considerations for Pressurized Aircraft 2 6 2 8 Electrical Noise 2 6 3 INSTALLATION PROCEDURE 3 1 3 1 Unpacking Unit 3 1 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 SY...

Page 7: ...Rev H Page iv 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 ...

Page 8: ...able is current at the time of publication of this manual see date on front cover and is subject to change without notice Authorized Garmin Sales and Service Centers are encouraged to access the most up to date bulletin and advisory information on the Garmin Dealer Resource web site at www garmin com using their Garmin provided user name and password GMA 35 HARDWARE MOD LEVEL HISTORY MOD LEVEL SER...

Page 9: ...cs system The installer is responsible for ensuring that the proper Bluetooth antenna is installed so that the limits in this part are not exceeded Installation of the GMA 35c may only be completed by Garmin authorized dealers under the agreement that only dealer installed units may be sold 1 2 Equipment Description The Garmin GMA 35 is a remote mount audio processor and marker beacon system that ...

Page 10: ...nd headsets Power off fail safe connection for Pilot PTT Pilot mic and Pilot s Headset Left to COM 1 Bluetooth audio streaming GMA 35c only Bluetooth telephone integration GMA 35c only 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 di...

Page 11: ...d thresholds for each mic Entertainment Functions Stereo HiFi music inputs 2 Telephone interfaces 1 Music and TEL sources individually distributable independent of ICS modes to allow any combination of source to ICS position distribution Combined with independent ICS mode selection any ICS position can have private TEL conversations or conference conversations of any combination Bluetooth GMA 35c ...

Page 12: ...lectable Aircraft Voltage Speaker Impedance Output Power 14V 8 Ohms Not recommended 14V 4 Ohms 3 W 28V 8 Ohms 7 W 28V 4 Ohms 10 W Table 1 4 GMA 35 Power Requirements Characteristic Specification Power Input Voltage 14 Vdc or 28 Vdc See the Environmental Qualification Form for details on surge ratings and minimum maximum operating voltages Power Consumption 0 8 A 14 V typical 1 5 A 14 V maximum 0 4...

Page 13: ...011 02299 00 TSO ETSO Compliance Function TSO ETSO Category Applicable LRU SW Part Number Applicable LRU Boot Block Part Numbers Airborne Radio Marker Receiving Equipment TSO C35d A 006 B0772 0 _ 006 B0772 5 _ 006 B0773 0 _ 006 B0773 5 _ All 006 B0772 B _ except 006 B0772 BA and all 006 B0773 B _ except 006 B0773 BA ETSO 2C35d Aircraft Audio Systems and Equipment TSO C139 ETSO C139 Class Ib Table ...

Page 14: ...on from ETSO 2C35d which calls out EUROCAE 1 WG7 Section 3 16 TSO C139 1 Garmin was granted a deviation from TSO C139 paragraph 7a 2 Garmin was granted a deviation from TSO C139 paragraph 7b Table 1 8 GMA 35c 011 02299 20 and 40 TSO ETSO Deviations 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 holde...

Page 15: ...n the GMA 35 is installed as a component of a Garmin Integrated Flight Deck Table 1 9 GMA 35 Non TSO Functions Functions Design Assurance Applicable LRU Software Part Numbers Automatic Speech Recognition ASR RTCA DO 178B Level D 006 B0772 0 _ 006 B0772 5 _ 006 B0773 0 _ 006 B0773 5 _ 006 B2103 0 _ 006 B2104 0 _ Wireless Data Conversion RTCA DO 178B Level E 006 B2103 0 _ 006 B2104 0 _ ...

Page 16: ...e and maximum or lesser gain approved for the transmitter by Industry Canada To reduce potential radio interference to other users the antenna type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication Conformément à la réglementation d Industrie Canada le présent émetteur radio peut fonctionner avec u...

Page 17: ...ent complies with FCC radiation exposure limits set forth for an uncontrolled environment 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 ...

Page 18: ...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 Document 190 00858 13 GMA 35 Maintenance Manual 190 01007 02 GTN 7XX Installation Manual ...

Page 19: ...the Intercom Button on the touchscreen controller to display the Intercom Screen 2 Touch the Pilot Volume Copilot Volume or Passenger Volume button to display the Pilot Copilot or Passenger Settings Screen 3 Adjust the volume by using the middle knob or by sliding your finger on the volume slider 1 6 3 Adjusting Intercom Squelch 1 Touch the Intercom Button on the touchscreen controller to display ...

Page 20: ... subsequent press of the Previous Button selects the previously recorded memory block if any exist 6 Touch the Next Button to play the next recorded memory block Each subsequent press of the Next Button selects the next recorded memory block if more exist 1 6 6 Selecting deselecting MUSIC1 MUSIC2 input 1 Touch the Audio Radios button on the touchscreen controller to display the Audio Radios Screen...

Page 21: ... separately from the GMA 35 2 2 2 Additional Equipment Required Cables The installer will fabricate and supply all system cables Interconnect wiring diagrams are detailed in Appendix C Stereo headphone jacks up to 4 microphone jacks up to 4 3 5mm stereo jacks up to 2 Insulating type jacks or insulating washers should be used for all jacks to isolate them from aircraft chassis Table 2 1 GMA 35 Part...

Page 22: ...sible from transmitter antennas 2 3 1 2 Marker Beacon Antenna Mounting Install the antenna according to the antenna manufacturer s instructions If the antenna is being installed on a composite aircraft ground planes must sometimes be added Conductive wire mesh radials or thin aluminum sheets embedded in the composite material provide the proper ground plane allowing the antenna pattern gain to be ...

Page 23: ... shield to D Sub as short as possible Ensure the distance from the beginning of the exposed shield to D Sub is no more than 1 5 inches long Terminate the center conductor by directly connecting it to the D sub through a crimp pin without a pigtail Figure 2 1 below represents a suggested method for terminating the marker beacon coaxial cable using M17 128 RG400 terminated into a high density D Sub ...

Page 24: ...details 2 4 Cabling Wiring Refer to the interconnect examples in Appendix C for wire gauge guidance In some cases a larger gauge wire such as AWG 18 or 20 may be needed for power connections If using AWG 18 barrel contacts ensure that no two contacts are mounted directly adjacent to each other This minimizes the risk of contacts touching and shorting to adjacent pins and to ground Use wire and cab...

Page 25: ...electrical bond to the aircraft to minimize radiated 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 Figure 2 2 GMA 35 Unit Rack ...

Page 26: ...re brought together take care to minimize effects from coupled interference and ground loops Coupled interference can sneak into audio system interconnecting cables when they are routed near large AC electric fields AC voltage sources and pulse equipment strobes spark plugs magnetos EL displays CRTs etc Interference can also couple into audio system interconnecting cables by magnetic induction whe...

Page 27: ...uctions 3 3 Antenna Cable Connectors The antenna cable requires a BNC plug connector Follow BNC connector manufacturer instructions for assembly of the BNC connector 3 4 Electrical Connections All electrical connections to the GMA 35 including marker beacon antenna and shield ground are make through two 44 pin D subminiature connectors Tables in Section 4 define the electrical characteristics of a...

Page 28: ...semblies Garmin s backshell connectors give the installer the ability to quickly and easily terminate shield grounds at the backshell housing using the Shield Block To assemble the backshell connectors and grounding system refer to instructions provided in the Shield Block Installation Instructions 190 00313 09 Table 3 2 Recommended Crimp Tools Manufacturer Note 1 Hand Crimping Tool 18 20 AWG 22 2...

Page 29: ...ine and installation drawings shown in Appendix B of this manual 1 Assemble the backshell as described in Section 3 5 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 4 Assemble the rear plate into the GMA 35 unit rack ...

Page 30: ...e physical design of the headset plug contacts and is an inevitable consequence of plugging a mono headset into a stereo jack During power on operation this short will not damage the audio panel 3 Verify that the COM1 transceiver can be heard in the pilot s headset 4 Verify that COM1 can key and transmit the pilot s mic audio by verifying received sidetone or checking reception of the transmission...

Page 31: ...ion 3 Initiate PA Passenger Address mode and verify that from both the pilot and copilot position the crew position that is pressing PTT has their mic delivered to the speaker clearly NOTE If a loud squeal is heard while testing PA it is because there is too much acoustic feedback between the speaker and the mic If they cannot be placed further apart a lower volume configuration should be used In ...

Page 32: ... that marker audio can be heard when selected 3 If the system includes integrated lamp annunciation and or if external lamps are installed verify that each marker tone illuminates the proper lamp NOTE The Marker Lamps will operate even if the marker audio is not selected Outer Marker Blue Lamp 400 Hz AM or received audio tone Middle Marker Amber Lamp 1300 Hz AM or received audio tone Inner Marker ...

Page 33: ...AUDIO IN HI In 4 COM 3 AUDIO LO 5 COM 3 MIC AUDIO OUT HI Out 6 COM 3 MIC KEY OUT Out 7 RCVR 4 AUDIO IN HI In 8 RCVR 4 AUDIO IN LO In 9 COM 1 AUDIO IN HI In 10 COM 1 AUDIO LO 11 COM 1 MIC AUDIO OUT HI Out 12 COM 1 MIC KEY OUT Out 13 COM 2 AUDIO IN HI In 14 COM 2 AUDIO LO 15 COM 2 MIC AUDIO OUT HI Out 16 PILOT PTC ICS KEY IN In 17 NAV 1 AUDIO IN HI In 18 NAV 1 AUDIO IN LO In 19 NAV 2 AUDIO IN HI In ...

Page 34: ...n 30 COM 2 MIC KEY OUT Out 31 ALERT 1 AUDIO IN HI In 32 ALERT 1 AUDIO IN LO In 33 PILOT MIC AUDIO IN HI In 34 PILOT MIC KEY IN In 35 PILOT MIC AUDIO IN LO In 36 INNER MARKER LAMP OUT Out 37 OUTER MARKER LAMP OUT Out 38 MIDDLE MARKER LAMP OUT Out 39 MIDDLE MARKER SENSE OUT Out 40 PASS HEADSET AUDIO OUT LEFT Out 41 PASS HEADSET AUDIO OUT RIGHT Out 42 PASS HEADSET AUDIO OUT LO Out 43 ALERT 2 3 4 AUDI...

Page 35: ...DSET AUDIO OUT RIGHT Out 5 LIGHTING BUS IN LO In 6 RESERVED 7 LIGHTING BUS IN HI In 8 AIRCRAFT POWER In 9 AIRCRAFT POWER In 10 POWER GROUND 11 POWER GROUND 12 PA MUTE OUT Out 13 MARKER HI SENS IN In 14 PASS ISO TOGGLE ICS KEY IN In 15 ALERT 2 AUDIO IN HI In 16 PILOT HEADSET AUDIO OUT LEFT Out 17 RS 232 IN In 18 RS 232 OUT Out 19 PA MODE SELECTED OUT Out 20 COM SWAP CYCLE IN In 21 RESERVED 22 PLAY ...

Page 36: ...OUT RIGHT Out 32 COPILOT MIC AUDIO IN HI In 33 COPILOT MIC KEY IN In 34 COPILOT MIC AUDIO IN LO In 35 PASS 1 MIC AUDIO IN HI In 36 PASS 1 MIC AUDIO IN LO In 37 PASS 2 MIC AUDIO IN HI In 38 PASS 2 MIC AUDIO IN LO In 39 PASS 3 MIC AUDIO IN HI In 40 PASS 3 MIC AUDIO IN LO In 41 PASS 4 MIC AUDIO IN HI In 42 PASS 4 MIC AUDIO IN LO In 43 SPEAKER AUDIO OUT LO Out 44 SPEAKER AUDIO OUT HI Out Table 4 2 J35...

Page 37: ...hting This input can be configured to control the brightness of the marker lamp and middle marker sense outputs Table 4 3 Aircraft Power Pin Name Connector Pin I O AIRCRAFT POWER J3502 8 In AIRCRAFT POWER J3502 9 In POWER GROUND J3502 10 POWER GROUND J3502 11 Table 4 4 RS 232 Pin Name Connector Pin I O RS 232 IN 1 J3502 17 In RS 232 OUT 1 J3502 18 Out Table 4 5 Lighting Pin Name Connector Pin I O ...

Page 38: ...4 COM 3 AUDIO IN HI J3501 3 In COM 3 AUDIO LO J3501 4 COM 1 MIC AUDIO OUT HI J3501 11 Out COM 2 MIC AUDIO OUT HI J3501 15 Out COM 3 MIC AUDIO OUT HI J3501 5 Out Table 4 7 NAV Audio Inputs Pin Name Connector Pin I O NAV 1 AUDIO IN HI J3501 17 In NAV 1 AUDIO LO J3501 18 NAV 2 AUDIO IN HI J3501 19 In NAV 2 AUDIO LO J3501 20 Table 4 8 Receiver Audio Inputs Pin Name Connector Pin I O RCVR 3 AUDIO IN HI...

Page 39: ...8 Out Table 4 10 Pilot Copilot Pin Name Connector Pin I O PILOT MIC AUDIO IN HI J3501 33 In PILOT MIC AUDIO IN LO J3501 35 In COPILOT MIC AUDIO IN HI J3502 32 In COPILOT MIC AUDIO IN LO J3502 34 In PILOT HEADSET AUDIO OUT LO J3502 1 Out PILOT HEADSET AUDIO OUT LEFT J3502 16 Out PILOT HEADSET AUDIO OUT RIGHT J3502 31 Out COPILOT HEADSET AUDIO OUT LO J3502 2 Out COPILOT HEADSET AUDIO OUT LEFT J3502 ...

Page 40: ...LO J3502 36 PASS 2 MIC AUDIO IN HI J3502 37 In PASS 2 MIC AUDIO IN LO J3502 38 PASS 3 MIC AUDIO IN HI J3502 39 In PASS 3 MIC AUDIO IN LO J3502 40 PASS 4 MIC AUDIO IN HI J3502 41 In PASS 4 MIC AUDIO IN LO J3502 42 RCVR 5 PASS 5 MIC IN HI configurable J3501 23 In PASS HEADSET AUDIO OUT LEFT J3501 40 Out PASS HEADSET AUDIO OUT RIGHT J3501 41 Out PASS HEADSET AUDIO OUT LO J3501 42 ...

Page 41: ... FAILSAFE WARN AUDIO IN HI will become shorted together potentially causing damage or interference If the FAILSAFE WARN AUDIO IN HI is used it may be necessary to install summing resistors in series between these sources and the inputs to the audio panel to protect the outputs from damage 4 5 8 Speaker Outputs Table 4 12 Alert Inputs Pin Name Connector Pin I O ALERT 1 AUDIO IN HI J3501 31 In ALERT...

Page 42: ... 4 7 Mic Keys Table 4 14 Music Inputs Pin Name Connector Pin I O MUSIC 1 IN LEFT P3502 23 In MUSIC 1 IN RIGHT P3502 24 In MUSIC 1 IN LO P3502 25 In MUSIC 2 IN LEFT P3502 26 In MUSIC 2 IN RIGHT P3502 27 In MUSIC 2 IN LO P3502 28 In Table 4 15 Mic Keys Pin Name Connector Pin I O COM 1 MIC KEY OUT P3501 12 Out COM 2 MIC KEY OUT P3501 30 Out COM 3 MIC KEY OUT P3501 6 Out PILOT MIC KEY IN P3501 34 In C...

Page 43: ...e voltage output into the rated minimum resistance of 4 7k Ohms 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 Table 4 16 Marker Beacon Pin Name Connector Pin I O MARKER ANTENNA IN HI P3501 1 In MARKER ANTENNA IN LO P3...

Page 44: ... ISO TOGGLE pressing this key will toggle the intercom isolation state of the passengers When configured as ICS KEY this input allows the audio from all passenger mics to be heard on the intercom system ICS while pressed An active low output that has low impedance to ground during transmission and when received audio is detected on the COM selected for transmission An active low output that has lo...

Page 45: ... CYCLE IN is used to cycle between COM1 MIC COM2 MIC and COM3 MIC for installations with three COM radios An active low input that allows a remote pushbutton to initiate playback of recorded COM audio Table 4 21 PA Mode Pin Name Connector Pin I O PA MUTE SELECTED OUT P3502 19 Out Table 4 22 COM Swap Cycle Pin Name Connector Pin I O COM SWAP CYCLE IN P3502 20 In Table 4 23 Play Key Pin Name Connect...

Page 46: ...ackplate will need to be oriented to accommodate the GMA 35 Refer to Appendix B and C of this manual for proper backplate orientation 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 GMA 340 J1 pins 23 through 28 Com Spkr Loads C...

Page 47: ...190 00858 11 GMA 35 35c Installation Manual Rev H Page B 1 APPENDIX B OUTLINE AND INSTALLATION DRAWINGS Figure B 1 GMA 35 Outline Drawing ...

Page 48: ...190 00858 11 GMA 35 35c Installation Manual Rev H Page B 2 APPENDIX B OUTLINE AND INSTALLATION DRAWINGS Figure B 2 GMA 35 Connector Rack Assembly Drawing ...

Page 49: ...190 00858 11 GMA 35 35c Installation Manual Rev H Page B 3 APPENDIX B OUTLINE AND INSTALLATION DRAWINGS Figure B 3 GMA 35c Panel Cutout For Bluetooth Antenna Connector ...

Page 50: ...190 00858 11 GMA 35 35c Installation Manual Rev H Page C 1 APPENDIX C INTERCONNECT DRAWINGS Figure C 1 Notes ...

Page 51: ...190 00858 11 GMA 35 35c Installation Manual Rev H Page C 2 APPENDIX C INTERCONNECT DRAWINGS Figure C 2 J3501 Interconnects ...

Page 52: ...190 00858 11 GMA 35 35c Installation Manual Rev H Page C 3 APPENDIX C INTERCONNECT DRAWINGS Figure C 3 J3502 Interconnects ...

Page 53: ...190 00858 11 GMA 35 35c Installation Manual Rev H Page C 4 APPENDIX C INTERCONNECT DRAWINGS Figure C 4 J3501 J3502 Connector Layout Drawing Sheet 1 of 2 ...

Page 54: ...190 00858 11 GMA 35 35c Installation Manual Rev H Page C 5 APPENDIX C INTERCONNECT DRAWINGS Figure C 5 J3501 J3502 Connector Layout Drawing Sheet 2 of 2 ...

Page 55: ...16 03 49 PM CST GPN 190 00858 11 Description GMA35 35c Installation Manual Part Type Manuals Printed Literature Lifecycle Phase Production Rev H ECO 139773 Item Attribution Document Review Required ARR Item Notes Preferred Rating ESD Sensitive Moisture Sensitive Limited Shelf Life Magnetic Sensitive ...

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