Garmin GMA 347, Installation Manual

Page 1: ... Garmin Ltd or its subsidiaries 190 00325 01 Revision A August 2005 GMA 347 AUDIO PANEL INSTALLATION MANUAL ...

Page 2: ...o provided that such electronic or printed copy of this manual or revision must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited Garmin International Inc 1200 E 151 st Street Olathe KS 66062 USA Telephone 913 397 8200 www garmin com Garmin Europe Ltd Unit 5 The Quadrang...

Page 3: ... 15 CFR Chapter VII Subchapter C and which may not be exported released or disclosed to foreign nationals inside or outside of the United States without first obtaining an export license A violation of the EAR may be subject to a penalty of up to 10 years imprisonment and a fine of up to US 1 000 000 under Section 2410 of the Export Administration Act of 1979 Include this notice with any reproduce...

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Page 5: ... Antenna Installation 2 5 2 7 Installation Approval Considerations for Pressurized Aircraft 2 6 2 8 Electrical Noise 2 6 2 9 GMA 347 Mounting 2 7 3 INSTALLATION PROCEDURE 3 1 3 1 Unpacking Unit 3 1 3 2 Marker Beacon Antenna Installation 3 1 3 3 Marker Beacon Antenna Cable Connectors 3 1 3 4 Electrical Connections 3 1 3 5 Backshell Assembly and D Subminiature Connectors 3 3 3 6 Circuit Breaker Plac...

Page 6: ...le 5 9 5 12 Valid Data Ranges 5 10 APPENDIX A CERTIFICATION DOCUMENTS A 1 Airworthiness Approval A 1 A 2 Continued Airworthiness A 1 A 3 Environmental Qualification Forms GMA 347 Audio Panel A 3 APPENDIX B ASSEMBLY AND INSTALLATION DRAWINGS APPENDIX C INTERCONNECT DRAWINGS LIST OF ILLUSTRATIONS FIGURE PAGE 2 1 GMA 347 Unit Rack 2 7 3 1 Shield Block Install onto Backshell Connector Assembly 3 4 3 2...

Page 7: ...pload 5 7 5 8 Erasing Flash 5 7 5 9 Uploading Flash 5 7 5 10 Canceling a Code Upload 5 7 5 11 Code Upload Failed 5 8 5 12 Code Upload Complete 5 8 A 1 GMA 347 Environmental Qualification Form A 4 B 1 GMA 347 Outline Drawing B 1 B 2 GMA 347 Rack Dimensions 115 00427 00 B 3 B 3 GMA 347 Connector Rack Assembly Drawing B 5 C 1 GMA 347 Power Antenna and Speaker Interconnect Wiring Diagram C 1 C 2 Mic a...

Page 8: ... Marker Beacon Pin Assignments J3472 4 8 4 7 Installation Selection Inputs Pin Assignments J3472 4 8 4 8 External Configuration Module Pin Assignments J3472 4 9 4 9 Speaker Pin Assignments J3472 4 9 4 10 PA MUTE Pin Assignments J3472 4 9 4 11 Mic Audio Inputs and Mic Key Pin Assignments J3471 4 10 4 12 ICS Key Pin Assignments J3471 4 10 4 13 Com Audio and Mic Keys Pin Assignments J3471 4 11 4 14 N...

Page 9: ...e 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 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 MOD ...

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Page 11: ...ven in a monitoring state can disrupt GPS performance The Garmin GMA 347 is a horizontally oriented panel mounted audio control panel and marker beacon system The system delivers reliability and versatility for all audio controlling functions LED illuminated pushbuttons and logical panel layout allow audio selection of NAV COM LED annunciator brightness is adjusted to an appropriate level for ambi...

Page 12: ...ected by the active intercom mode Refer to the GMA 347 pilot s manual for details MUSIC 1 is soft muted when an interruption occurs from an aircraft radio Soft muting is the gradual return of MUSIC 1 to its original volume level MUSIC 1 can also be configured to mute during ICS activity MUSIC 2 is a non muted input 1 2 1 Features Summary Logical front panel layout LED annunciators indicate selecte...

Page 13: ...on Lamp Driver Outputs Figure C 4 1 3 Technical Specifications The following tables present general environmental specifications For detailed specifications see the Environmental Qualification form in Appendix A 1 3 1 Physical Characteristics Specification Characteristic Bezel Height 1 3 inches 33 mm Bezel Width 6 29 inches 160 mm Rack Height 1 325 34 mm Rack Width 6 30 inches 160 mm Depth Behind ...

Page 14: ...essing 9 pole characteristic and special cabin noise band de emphasis Intercom isolation modes 4 All Pilot Isolate Copilot Isolate Crew Isolate Special functions Recorder with playback automatic recording of selected COMs up to 2 5 minutes of recording time Automatic squelch 6 one per mic input pilot selectable between auto and manual Headphone Outputs Output amplifiers 3 stereo pilot copilot pass...

Page 15: ... 4 1 TSO ETSO Compliance The GMA 347 is FAA TSO approved to TSO C50c TSO C35d Class A ETSO C50c pending and ETSO 2C35d pending For a list of ETSO deviations see the GMA 347 Declaration of Design and Performance Garmin part number 190 00325 03 1 4 2 TSO Deviations The following table provides a list of applicable TSO deviations for the GMA 347 TSO Deviation Garmin was granted a deviation from TSO C...

Page 16: ...FROM STATE TO STATE IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES WHETHER RESULTING FROM THE USE MISUSE OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT Some states do not allow the exclusion of incidental or consequential damages so the above limitations may not apply to you Garmin retains the exclusive right to repair or replace th...

Page 17: ...some cases a larger gauge wire such as AWG 18 or 16 may be needed for power connections Extended barrel contacts for AWG 16 and 18 wire are available from Garmin if required Special thin wall heat shrink tubing is also provided to insulate the extended barrels inside the backshell If using 16 or 18 barrel contacts ensure that no two contacts are mounted directly adjacent to each other This minimiz...

Page 18: ...Item Garmin P N Sub Assy Connector Kit GMA 347 011 00813 01 SMP Install Rack GMA 347 115 00427 00 Sub Assy Backplate GMA 347 011 00812 00 Configuration Module Kit 011 00979 00 Garmin Marker Beacon Antenna Kit 010 10175 00 Note A marker beacon antenna approved to TSO C35d that has been installed to meet the requirements of this manual may be approved for use with the GMA 347 2 4 3 Additional Equipm...

Page 19: ...list shows the hard wiring configuration options available for the GMA 347 Function and Purpose Hard Wiring Configuration Options Com Swap Transfers the active microphone between Com 1 and Com 2 Com Swap Pushbutton Switch External lamps Provides an extra set of Marker Beacon indicators located away from the GMA 347 External Marker Beacon Lights Two Playback Options An external pushbutton activates...

Page 20: ... Threshold and Marker volume Marker Threshold Marker Beacon threshold levels are adjustable for HI and LO sense ICS Mute ICS Muting of Music 1 can be enabled or disabled Record Com2 Pilot or Copilot COM recording During the Split Com mode COM 1 or COM 2 audio can be selected for voice recording and playback 2 5 1 Transmit Interlock and Split COM Operation NOTE Garmin makes no expressed or implied ...

Page 21: ...it as far away as possible from transmitter antennas Best results with split COM mode will be obtained when the COM 1 and COM 2 antennas are mounted on opposite sides of the aircraft top bottom 2 6 2 Marker Beacon Antenna Mounting Install the marker beacon antenna according to the antenna manufacturer s instructions and FAA Advisory Circulars AC 43 13 1B and AC 43 13 2A Chapters 2 and 3 as applica...

Page 22: ...ther take care to minimize effects from coupled interference and ground loops Coupled interference can creep 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 when they are rout...

Page 23: ...is mounted using it s own system rack Figure 2 1 shows the GMA 347 unit rack 1 Slide the unit into the rack until the front lobe of the unit touches the rack 2 Insert a 3 32 hex wrench into the access hole on the faceplate 3 Turn the hex wrench clockwise until the unit is secured in the rack Continue turning until tight Do not over tighten the screw 4 To remove the unit from the rack turn the hex ...

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Page 25: ...Beacon Antenna Cable Connectors The marker beacon antenna cable requires a BNC or similar coax connector on the antenna end Follow connector manufacturer instructions for assembly of the antenna connector 3 4 Electrical Connections All electrical connections to the GMA 347 including the marker beacon antenna and shield ground are made through two 78 pin D subminiature connectors see Figure 4 1 Tab...

Page 26: ...1 584 N A N A 995 0001 739 N A AMP 601966 1 N A 91067 1 601966 6 91067 1 Daniels AFM8 K774 M81969 1 04 K42 M81969 1 04 Astro 615717 N A M81969 1 04 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 16 18 and 20 contact requires that the expanded wire barrel be cut off from the contact It may ...

Page 27: ...0085 00 2 Shield block 117 00147 xx 3 Screw 4 40 x 250 FLHP100 SS P Nylon 211 63234 08 4 Multiple Conductor Shielded Cable See Interconnect Diagrams Appendix C As Required 5 Shield Termination As Required 6 Braid Flat 19 20 AWG equivalent tinned plated copper strands 36 AWG Circular Mil Area 1000 1300 As Required 7 Shrink Tubing As Required 8 Pins 336 00021 00 9 Ring terminal 8 insulated 18 22 AWG...

Page 28: ... backshell assembly GMA 347 installations are listed in Table 3 3 and shown in Figure 3 1 1 2 3 4 5 7 6 9 8 13 10 11 12 17 16 14 15 Figure 3 1 Shield Block Install onto Backshell Connector Assembly Table 3 4 Shield Block Components Backshell Assembly Garmin P N Shield Block Garmin P N 011 00950 04 78 Pin High Density 011 01169 01 ...

Page 29: ...roughout the Window Min to Window Max range If staggering is not needed the Ideal Window length is recommended Tools needed to Accomplish the Window Cut Coaxial Cable Stripper Thermal Stripper Sharp Razor Blade 3 Connect a Flat Braid 6 to the shield exposed through the window of the prepared cable assembly 4 The Flat Braid goes out the front of the termination towards the connector Do not allow wi...

Page 30: ...d be made up of 36 AWG strands to form an approximately 19 20 AWG equivalent flat braid A circular mil area range of 1000 to 1300 is required The number of individual strands in each braid bundle is not specified NOTE Flat Braid as opposed to insulated wire is specified in order to insure continuing airworthiness by allowing for visual inspection of the conductor Secondary Method Heat Shrink inste...

Page 31: ...t the Flat Braid 6 to a length with the addition of a ring terminal that will reach one of the tapped holes of the Shield Block 2 See Figure 3 1 An appropriate amount of excess length without looping should be given to the Flat Braid 6 to allow it to move freely with the wire bundle Note that the maximum distance from the backshell allowed for the window splice should keep the Flat Braid 6 to a wo...

Page 32: ...olate the guidelines presented in Step 8 regarding ring terminals 11 It is recommended to wrap the cable bundle with Silicone Fusion Tape 13 GPN 249 00114 00 or a similar version at the point where the backshell strain relief and cast housing will contact the cable bundle Note Choosing to use this tape is at the discretion of the installer 12 Place the smooth side of the backshell strain relief 14...

Page 33: ... 3 6 lists part numbers for the Configuration Module Kit Table 3 6 Configuration Module Kit 011 00979 00 Item Description Garmin P N Configuration Module PCB Board Assembly w EEPROM 012 00605 00 Cable 4 Conductor Harness 325 00122 00 Crimp Pins 22 AWG HD 336 00021 00 Spacer Spacer Config Module 213 00043 00 ...

Page 34: ...ch wire prior to crimping 2 Insert newly crimped pins and wires 3 4 into the appropriate connector housing 5 location shown in the figure below 3 Apply the spacer 2 by wrapping it around the PCB Board 1 making sure to insert the plastic connector mounted on the board into the hole provided in the spacer 4 Plug the four conductor wire harness 3 into the connector on the PCB Board 1 5 Insert into th...

Page 35: ...Mount the unit rack to a suitable mounting location on the panel using the provided nutplates 4 Assemble the rear plate into the GMA 347 unit rack 5 Insert the GMA 347 into the rack noting proper orientation as shown on the installation drawing in Appendix B 6 Lock the GMA 347 in place using a 3 32 hex wrench 3 8 Post Installation Configuration and Checkout Refer to Section 5 for GMA 347 System Co...

Page 36: ...radio lights dimming bus 3 8 2 Failsafe Operation Check 1 Turn the unit off by rotating the Pilot s intercom volume knob counter clockwise 2 Check the failsafe operation by exercising the COM 1 microphone microphone key and audio over the headphones A stereo headset connected to the Pilot headphone jack will provide audio in the left earphone only 3 Turn the unit back on to continue testing 3 8 3 ...

Page 37: ...audio over the headsets 2 Check for Pilot Copilot audio isolation when pressing the Split COM COM 1 2 key 3 Press the SPKR key and verify that any selected audio is heard over the speaker 3 8 6 Clearance Recording Check 1 Allow COM 1 receiver to operate for at least two and one half 2 5 minutes of active operation 2 Press the PLAY key once to play back the latest recorded memory block of COM 1 aud...

Page 38: ...after installing the unit to ensure satisfactory performance of the audio and marker beacon receiver functions Verify proper operation of the marker lamps and marker audio including the marker audio mute function Check proper operation of the sensitivity selection using the SENS key by flying towards the outer marker OM position initially using HI sensitivity When the OM audio is just barely audib...

Page 39: ... 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 Figure 4 1 Backshell Rear Connector Plate 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 ...

Page 40: ...M AUDIO LO I O 14 CROSS SIDE NAV AUDIO IN HI In 15 DME AUDIO IN HI In 16 DME AUDIO IN LO In 17 MUSIC IN 1 LEFT In 18 MUSIC IN 1 RIGHT In 19 UNSWITCHED AUDIO IN 1 HI In 20 UNSWITCHED AUDIO IN 2 HI In 21 RESERVED 22 RESERVED 23 TEL MIC AUDIO OUT HI Out 24 PASS ICS KEY In 25 ON SIDE NAV AUDIO IN LO In 26 ON SIDE COM MIC AUDIO OUT HI Out 27 ON SIDE COM MIC KEY Out 28 PILOT MIC AUDIO IN HI In 29 PILOT ...

Page 41: ...n 53 RESERVED 54 ALTITUDE WARN AUDIO IN HI In 55 ALTITUDE WARN AUDIO IN LO In 56 MUSIC IN 2 LEFT In 57 MUSIC IN 2 RIGHT In 58 COM 3 AUDIO IN HI In 59 COM 3 AUDIO LO I O 60 RESERVED 61 RESERVED 62 TEL MIC AUDIO OUT LO Out 63 PASS 4 MIC AUDIO IN HI In 64 PASS 4 MIC AUDIO IN LO In 65 PASS 2 MIC AUDIO IN HI In 66 PASS 2 MIC AUDIO IN LO In 67 PASS HEADSET AUDIO OUT LEFT Out 68 PASS HEADSET AUDIO OUT RI...

Page 42: ...M GROUND 12 RESERVED 13 RESERVED 14 POWER GROUND 15 RESERVED 16 POWER GROUND 17 COM SWAP In 18 PROGRAM GROUND 19 RESERVED 20 RESERVED 21 CONFIG MODULE POWER OUT Out 22 RESERVED 23 PROGRAM GROUND 24 RECORDER OFF SELECT In 25 PROGRAM GROUND 26 AUX SOURCE SELECT In 27 RESERVED 28 RESERVED 29 RESERVED 30 AIRCRAFT POWER 2 In 31 RESERVED 32 AIRCRAFT POWER 2 In 33 RESERVED 34 MIDDLE MARKER SENSE Out 35 R...

Page 43: ...IGHTING HI In 52 28 V LIGHTING HI In 53 AIRCRAFT POWER 1 In 54 RESERVED 55 AIRCRAFT POWER 1 In 56 RESERVED 57 GROUND RETURN 58 RESERVED 59 MARKER ANTENNA LO In 60 CONFIG MODULE CLOCK Out 61 RESERVED 62 RESERVED 63 RESERVED 64 PA MUTE OUT Out 65 TEL DISCRETE RINGER In 66 RESERVED 67 PROGRAM GROUND 68 RESERVED 69 POWER GROUND 70 RESERVED 71 POWER GROUND 72 RESERVED 73 RESERVED 74 AIRWAY INNER MARKER...

Page 44: ...raft Power Pin Assignments J3472 Pin Pin Name Description I O 53 AIRCRAFT POWER 1 Unit power In 55 AIRCRAFT POWER 1 Unit power In 30 AIRCRAFT POWER 2 Unit power In 32 AIRCRAFT POWER 2 Unit power In 69 POWER GROUND Aircraft ground 71 POWER GROUND Aircraft ground 14 POWER GROUND Aircraft ground 16 POWER GROUND Aircraft ground 4 3 2 Lighting Bus The GMA 347 can be configured to track a 28 Vdc or 14 V...

Page 45: ...UT 2 Output level greater than 5 Volts Out 39 RS 232 IN 2 Input with level up to 25 volts In The RS 232 outputs conform to EIA TIA 232C with an output voltage swing of at least 5 V when driving a standard RS 232 load The RS 232 IN OUT 1 connections are used to upload configuration data into the unit The unit is configured out of the aircraft before final installation Refer to Section 5 for configu...

Page 46: ...llation Selection Inputs The following table shows the Installation Selection Inputs of J3472 The selection inputs have an input and a program ground When the input is grounded the input function is selected Table 4 7 Installation Selection Inputs Pin Assignments J3472 Pin Pin Name Description I O 4 RECORDER PLAY In 5 PROGRAM GROUND An external pushbutton switch activates voice recorder playback 1...

Page 47: ...odule Data Bi directional data line In Out 60 Configuration Module Clock Signal used to clock data input output Out 4 3 7 Speaker The speaker output is capable of driving up to 10 Watts into a 4 ȍ or 8 ȍ speaker Table 4 9 Speaker Pin Assignments J3472 Pin Pin Name Description I O 41 SPEAKER AUDIO OUT LO Ground reference for speaker audio 42 SPEAKER AUDIO OUT HI Speaker audio output Out 4 3 8 PA MU...

Page 48: ...T MIC IN LO Copilot Mic audio input and ground reference 46 PASS 1 MIC AUDIO IN HI In 47 PASS 1 MIC AUDIO IN LO Passenger 1 Mic audio and ground reference 65 PASS 2 MIC AUDIO IN HI In 66 PASS 2 MIC AUDIO IN LO Passenger 2 Mic audio and ground reference 44 PASS 3 MIC AUDIO IN HI In 45 PASS 3 MIC AUDIO IN LO Passenger 3 Mic audio and ground reference 63 PASS 4 MIC AUDIO IN HI In 64 PASS 4 MIC AUDIO ...

Page 49: ... for Com 3 audio Denotes Active Low Ground to activate 4 4 4 Nav Audio Table 4 14 Nav Audio Pin Assignments J3471 Pin Pin Name Description I O 6 ON SIDE NAV AUDIO IN HI Nav 1 audio input In 25 ON SIDE NAV AUDIO IN LO Nav 1 ground reference 14 CROSS SIDE NAV AUDIO IN HI Nav 2 audio input In 34 CROSS SIDE NAV AUDIO IN LO Nav 2 ground reference 4 4 5 Headset Outputs Table 4 15 Headset Outputs Pin Ass...

Page 50: ...UDIO IN 2 HI Unswitched audio inputs In 38 UNSWITCHED AUDIO IN 3 HI In 39 UNSWITCHED AUDIO IN LO Ground reference for unswitched audio 54 ALTITUDE WARN AUDIO IN HI Unmuted unswitched input In 55 ALTITUDE WARN AUDIO IN LO Ground reference for altitude warning 4 4 8 Telephone I O Table 4 18 Telephone Inputs Outputs Pin Assignments J3471 Pin Pin Name Description I O 3 TEL RINGER AUDIO IN HI Ringtone ...

Page 51: ...itched audio input 15 DME AUDIO IN HI Distance measuring equipment audio input In 16 DME AUDIO IN LO Ground reference for DME audio input 35 ADF AUDIO IN HI Automatic direction finder audio input In 36 ADF AUDIO IN LO Ground reference for automatic direction finder audio input 4 4 10 Failsafe Audio Table 4 20 Failsafe Audio Pin Assignments J3471 Pin Pin Name Description I O 1 FAIL SAFE WARN AUDIO ...

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Page 53: ...n Tool See Figure 5 1 Figure 5 1 About GMA Config Tool 5 4 Configuration Tool Introduction References to the GMA 347 throughout this document apply to all versions of the GMA 347 unit types the GMA 347 GMA 347H and the GMA 347 2ADF The GMA Configuration Tool GPN 006 A0115 00 is used to configure the GMA 347 through a PC serial port The GMA Configuration Tool allows the ability to send updated conf...

Page 54: ...ial Number Figure 5 2 GMA Configuration Tool Screen 5 5 Connect and Disconnect Buttons When the GMA Configuration Tool is first opened all available COM ports will continuously be queried until a connection is made with a GMA 347 Figure 5 3 All SET boxes will become editable and the product information will appear in place of the No Connection message once the initial connection is made Figure 5 3...

Page 55: ...ol will remain open 5 5 4 Upload Button The Upload button is used to perform a system or boot block code upload 5 5 5 Load Config and Save Config Buttons The Load Config option will load settings from a configuration file into the GMA 347 The data format of the config file is shown in the CONFIG EXAMPLE at the end of this document The config file format should never be changed only the values that...

Page 56: ...d an ACTIVE value shown on the GMA 347 Configuration Tool The SET values can be altered The ACTIVE values represent the value that the unit currently has stored 5 6 4 Headset Volume MUSIC 1 MUSIC 2 UNSWITCHED IN 1 UNSWITCHED IN 2 UNSWITCHED IN 3 ALTITUDE WARNING Volume adjustments can be made by adjusting the volume up or down for each of the listed audio selections Increasing the number will incr...

Page 57: ...ME DISABLE ADF DISABLE SPLIT COM DISABLE PLAY DISABLE PA DISABLE SPKR Each of the following keys can be disabled so that pushing the associated button will do nothing 5 9 Configuration Inputs MASQ INHIBIT Setting this option will turn off the Master Squelch ICS MUTE Setting this option will mute Music 1 during ICS activity INTERNAL SIDETONE Setting this option will provide sidetone for installatio...

Page 58: ...io Button Not Chosen and Upload Selected After selecting the type of code to load Figure 5 5 will open for the Hex file of the software to be selected Figure 5 5 File Selection Select the Hex file to upload and click on Open If boot code is selected while attempting to do a system code upload Figure 5 6 will warn about the possible user error Clicking cancel will allow the correct Hex file to be s...

Page 59: ...rn into the window displayed in Figure 5 9 The Uploading Flash window shows the percentage of code uploaded the time remaining and the time elapsed Flash being erased Figure 5 8 Erasing Flash Code Upload window after flash has been erased Figure 5 9 Uploading Flash If the Cancel button is clicked while the code is being uploaded Figure 5 10 will warn that a code upload is in progress Click No to r...

Page 60: ...his failure occurs DO NOT turn the unit power off Reselect the code to be uploaded and attempt the code upload again Figure 5 11 Code Upload Failed When the code upload is finished Figure 5 12 will appear to indicate code upload completion Figure 5 12 Code Upload Complete ...

Page 61: ...ch1_vol 0 hs_unswch2_vol 0 hs_unswch3_vol 0 hs_altwarn_vol 0 spkr_crew_vol 0 mkr_vol 0 dsbl_spkr 0 pil_mic_vol 0 cop_mic_vol 0 master_sql_level 0 lo_sens_thrd 0 hi_sens_thrd 0 masq_inht 0 ics_mute 0 intl_sidetone 0 dsbl_play 0 dsbl_pa 0 mute_tx 0 mute_rx 0 dsbl_split_com 0 rec_com2 0 dsbl_com3 0 dsbl_tel 0 dsbl_dme 0 dsbl_adf 0 ...

Page 62: ...et marker beacon volume 31 31 Disable speaker 0 or 1 Pilot mic to speaker volume 31 31 CoPilot mic to speaker volume 31 31 Master squelch sensitivity level 31 31 LO sense threshold 31 31 HI sense threshold 31 31 MASQ inhibit 0 or 1 ICS mute 0 or 1 Select internal sidetone 0 or 1 Disable play 0 or 1 Disable PA 0 or 1 Mute audio on TX 0 or 1 Mute audio on RX 0 or 1 Disable split com 0 or 1 Select to...

Page 63: ...nstallation Manual provides detailed installation instructions and wiring diagrams Sections 2 3 and 4 and Appendices B and C Power is supplied to the GMA 347 through an existing AUDIO 5 5 Amp circuit breaker that was previously used by the existing audio panel The net electrical load is unchanged Aircraft equipment list weights and balance amended Compass compensation checked and found to conform ...

Page 64: ... document should be a permanent aircraft record 2 Description of the System Garmin GMA 347 Audio Panel with interface to external transceivers and include other equipment systems as appropriate Refer to Appendix C and Figures C 1 through C 5 of this manual for interconnect information Refer to aircraft manufacturer approved interconnect for actual installation Marker Beacon antenna installation re...

Page 65: ...Section is for Commuter Category Aircraft Only A Electrical loads Refer to Sections 1 and 4 of the GMA 347 Audio Panel Installation Manual B Methods of balancing flight controls N A C Identification of primary and secondary structures N A D Special repair methods applicable to the airplane Antenna installation removal and replacement should be in accordance with applicable provisions of AC 43 13 1...

Page 66: ...Page A 4 GMA 347 Installation Manual Revision A 190 00325 01 Figure A 1 GMA 347 Environmental Qualification Form Sheet 1 of 3 ...

Page 67: ...GMA 347 Installation Manual Page A 5 190 00325 01 Revision A Figure A 1 GMA 347 Environmental Qualification Form Sheet 2 of 3 ...

Page 68: ...Page A 6 GMA 347 Installation Manual Revision A 190 00325 01 Figure A 1 GMA 347 Environmental Qualification Form Sheet 3 of 3 ...

Page 69: ... Manual Page B 1 Page B 2 blank 190 00325 01 Revision A 6 30 160 0 1 59 40 5 13 3 2 6 39 162 4 7 79 197 8 3 15 80 0 3 65 92 7 6 29 159 8 1 30 33 0 437 11 10 3 925 99 70 5 600 142 24 1 325 33 66 35 8 9 60 15 2 65 16 5 95 24 1 66 16 8 Figure B 1 GMA 347 Outline Drawing ...

Page 70: ...n Manual Page B 3 Page B 4 blank 190 00325 01 Revision A 125 3 18 6 300 005 010 160 02 0 13 0 25 OUTSIDE 1 195 000 020 INSIDE 30 35 0 00 0 51 1 275 32 39 OUTSIDE 6 140 005 155 96 0 13 INSIDE NOTES 1 DIMENSIONS INCHES mm Figure B 2 GMA 347 Rack Dimensions 115 00427 00 ...

Page 71: ...X GMA 1347 BACKPLATE ASSY 2 PART OF 011 00813 XX GMA 1347 CONNECTOR KIT 3 APPLY THREAD LOCKING COMPOUND TO ALL THREADED FASTENERS 211 60234 08 2 PLACES 1 115 00427 00 211 63234 12 4 PLACES 2 125 00080 00 1 330 00185 78 336 00021 00 AS REQ D 2 PLACES 2 011 00950 04 2 PLACES 2 011 01169 01 2 PLACES 2 Figure B 3 GMA 347 Connector Rack Assembly Drawing ...

Page 72: ...APPENDIX C INTERCONNECT DRAWINGS GMA 347 Installation Manual Page C 1 Page C 2 blank 190 00325 01 Revision A Figure C 1 GMA 347 Power Antenna and Speaker Interconnect Wiring Diagram ...

Page 73: ...APPENDIX C INTERCONNECT DRAWINGS GMA 347 Installation Manual Page C 3 Page C 4 blank 190 00325 01 Revision A Figure C 2 Mic and Phone Jack Connections Interconnect Wiring Diagram ...

Page 74: ...APPENDIX C INTERCONNECT DRAWINGS GMA 347 Installation Manual Page C 5 Page C 6 blank 190 00325 01 Revision A Figure C 3 Transceiver Analog Connections Interconnect Wiring Diagram ...

Page 75: ...APPENDIX C INTERCONNECT DRAWINGS GMA 347 Installation Manual Page C 7 Page C 8 blank 190 00325 01 Revision A Figure C 4 Discrete Lines Interconnect Wiring Diagram ...

Page 76: ...APPENDIX C INTERCONNECT DRAWINGS GMA 347 Installation Manual Page C 9 Page C 10 blank 190 00325 01 Revision A Figure C 5 GMA 340 to GMA 347 Comparison ...