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Garmin GTN 725, Руководство по установке

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GTN 725/750 TSO Installation Manual 

Page 5-25 

190-01007-02 

Rev. A 

5.6.7 

Altitude Encoder or Air Data Computer Check 

The GTN can receive altitude data from an external source. This check verifies that the GTN is receiving 
data from these sources. Ensure that the GTN is powered on and in normal mode. If the following steps 
do not perform correctly, check the electrical connections and configuration setup. 

1.

 

Go to the map page from the home page in normal mode. 

2.

 

Touch the Menu button. 

3.

 

Under ‘Map Data Fields’ touch the Change Data Fields button. See Figure 5-22. 

4.

 

Touch one of the four data fields and configure it to display PRESS ALT—Pressure Altitude. 

5.

 

If there are multiple altitude sources providing data to the GTN, remove power from all but one 
source. 

6.

 

Verify that PRESS—ALT is being displayed and agrees with the active altitude source. 

NOTE 

After applying power to an altitude source it may take several minutes to warm up.  
During the warm-up period the altitude display on the GTN will be dashed out. 

7.

 

If there are multiple altitude sources, remove power from the currently active source and apply 
power to another source that has not been checked. 

8.

 

Repeat steps 5-7 until all available sources have been checked. 

5.6.8 AHRS/IRU 

Interface 

Check 

The GTN can receive heading data from an external source. This check verifies that the GTN is receiving 
data from these units. Ensure the GTN is turned on and in normal mode. If the following steps do not 
perform correctly, check the electrical connections and configuration setup. 

1.

 

Go to the map page from the home page in normal 
mode. 

2.

 

Touch the Menu button. 

3.

 

Under ‘Map Data Fields’ touch the Change Data 
Fields button. See Figure 5-22. 

4.

 

Touch one of the four data fields and configure it 
to display BRG — Bearing to Current Waypoint. 

NOTE 

If a Sandel EHSI or an ARINC 429 EFIS is also 
installed, ensure that it is turned off so that it does 
not supply heading to the GTN. Verify that the 
HDG field displays valid heading data. 

5.

 

Remove power from the heading source and 
verify that the heading in the BRG field is dashed 
out. 

 

Figure 5-22.  Map Menu Page 

Содержание GTN 725

Страница 1: ...190 01007 02 TBD 2010 Rev A GTN 725 750 TSO Installation Manual GTN 725 and GTN 750...

Страница 2: ......

Страница 3: ...d 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 st...

Страница 4: ...ontents i viii Section 1 1 1 through 1 14 Section 2 2 1 through 2 12 Section 3 3 1 through 3 10 Section 4 4 1 through 4 28 Section 5 5 1 through 5 38 Section 6 6 1 through 6 2 Section 7 7 1 through 7...

Страница 5: ...rs imprisonment and a fine of up to 1 000 000 under Section 2410 of the Export Administration Act of 1979 Include this notice with any reproduced portion of this document WARNING This product its pack...

Страница 6: ...and Exclusion FDE 1 12 1 8 Limited Warranty 1 13 2 INSTALLATION OVERVIEW 2 1 2 1 Introduction 2 1 2 2 Minimum System Configuration 2 1 2 2 1 VFR Installation 2 1 2 2 2 IFR GPS Installation 2 1 2 2 3 I...

Страница 7: ...nt 3 7 3 10 Antenna Installation and Connections 3 8 3 10 1 GPS Antenna 3 8 3 10 2 COM Antenna 3 9 3 10 3 NAV Antenna 3 9 4 SYSTEM INTERCONNECTS 4 1 4 1 Pin Function List 4 1 4 1 1 P1001 Main Connecto...

Страница 8: ...e Inputs Checkout 5 17 5 5 4 Discrete Outputs Checkout 5 18 5 5 5 HSDB Provisional Wiring Checkout 5 18 5 5 6 TAWS Audio Check For Units with TAWS Only 5 19 5 5 7 GAD 42 Interface Check 5 20 5 5 8 Lig...

Страница 9: ...ement 7 1 Appendix A ENVIRONMENTAL QUALIFICATION FORM A 1 Appendix B GTN DATA FORMAT B 1 B 1 RS 232 Aviation Data Format B 1 B 1 1 Electrical Interface B 1 B 1 2 General Output Format B 1 B 1 3 Output...

Страница 10: ...ge 5 25 Figure C 1 GTN Mounting Rack Dimensions C 3 Figure C 2 GTN Mounting Rack Installation C 4 Figure C 3 GTN Mounting Rack Assembly C 5 Figure C 4 GTN Recommended Panel Cutout Dimensions C 6 Figur...

Страница 11: ...Current Specifications 1 6 Table 1 3 Approved GPS Antennas 1 7 Table 1 4 TSO Authorization 1 9 Table 1 5 Main Software Part Number and Version 1 10 Table 1 6 GPS WAAS Software Part Number and Version...

Страница 12: ...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 Authorized Garmin Sales and Serv...

Страница 13: ...ith a special anti reflective coating that is very sensitive to waxes and abrasive cleaners CLEANERS CONTAINING AMMONIA WILL HARM THE ANTI REFLECTIVE COATING It is very important to clean the lens usi...

Страница 14: ...re details see Environmental Qualification Form on the Dealers Only page on www garmin com See Appendix A for part numbers Humidity 95 non condensing Altitude Range 1 500 ft to 50 000 ft Input Power R...

Страница 15: ...osition Accuracy 1 25 meter RMS horizontal 2 meter vertical with WAAS Velocity 1000 knots maximum above 60 000 ft TTFF Time To First Fix 1 45 min typical with current almanac position and time Reacqui...

Страница 16: ...Less than 5 distortion when the transmitter is at 85 modulation at 350 to 2500 Hz Sidetone 1 4 Vrms into a 500 load 1 3 4 2 COM Receiver Specifications Classes D and E Frequency Range 118 000 to 136 9...

Страница 17: ...20 dB down in voice mode Audio Distortion The distortion in the receiver audio output does not exceed 10 at all levels up to 100 mW 1 3 6 LOC Specifications GTN 750 Only Receiver Audio Sensitivity At...

Страница 18: ...condition 90 Hz dominant the output is 78 mV 7 8 mV b With a standard deflection FLY UP condition 150 Hz dominant the output is 78 mV 7 8 mV Flag The unit Flags When the level of a standard deviation...

Страница 19: ...000 RG 27 NM 013 00245 Garmin 013 00261 A33W WAAS Antenna 3 TNC Aero Antenna AT575 332G TNCF 000 RG 27 NM 013 00261 GPS VHF Antenna TNC BNC 2 Comant 3 CI 2580 200 N A GPS VHF Antenna TNC BNC 2 Comant...

Страница 20: ...ation for a license on FCC form 404 Application for Aircraft Radio Station License The FCC also has a fax on demand service to provide forms by fax Outside the US contact the responsible telecommunica...

Страница 21: ...eceiving Equipment TSO C36e DO 160B DO 195 TBD VOR Receiving Equipment TSO C40c DO 160B DO 196 TBD Airborne Weather and Ground Mapping Pulsed Radars TSO C63c DO 160A DO 173 TBD Airborne ATC Transponde...

Страница 22: ...ion Software Part Number Software Version 006 B0339 10 V4 0 NOTE For main or GPS software versions previous to those listed Table 1 5 or Table 1 6 contact Garmin for assistance System Function DO 178B...

Страница 23: ...als instead of Product Type TSO Numbers Equipment Class Dev deviation Environmental Categories Date of Manufacture weight and Software Part Number 1 Garmin was granted a deviation from RTCA DO 229D to...

Страница 24: ...nctionality is available for updating on periodic cycles and is available from Garmin TAWS Terrain database updates can be accomplished by replacing or reprogramming the database card and inserting th...

Страница 25: ...OF ALL OTHER WARRANTIES WHETHER EXPRESS IMPLIED OR STATUTORY INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE STATUTORY OR OTHERWISE THIS WARRA...

Страница 26: ...Page 1 14 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 This page intentionally left blank...

Страница 27: ...al CDI is required for installations using the VOR navigation and glideslope information A NAV antenna is required for VHF NAV functions A COM antenna is required for COM functions VFR installations m...

Страница 28: ...oes not provide information for the installation of specific external sensors The GTN can accept data from multiple altitude heading and baro correction sources If multiple sources are used the GTN wi...

Страница 29: ...t priority source is used If the highest priority source becomes unavailable data is taken from the next highest priority source The priorities of the heading sources are as follows from highest to lo...

Страница 30: ...highest priority source is used If the highest priority source becomes unavailable data is taken from the next highest priority source The priorities of the true airspeed sources are as follows from...

Страница 31: ...ces If multiple sources of total air temperature data are supplied to the GTN only valid data from the highest priority source is used If the highest priority source becomes unavailable data is taken...

Страница 32: ...the highest priority source becomes unavailable data is taken from the next highest priority source The priorities of the joystick waypoint data sources are as follows from highest to lowest 1 ARINC...

Страница 33: ...while performing a weight and balance check 2 The GPS antenna should be mounted in a location to minimize the effects of airframe shadowing during typical maneuvers Typically mounting farther away fr...

Страница 34: ...OM antenna should also be mounted as far apart as practical from the ELT antenna Some ELTs have exhibited re radiation problems generating harmonics that may interfere with GPS signals This can happen...

Страница 35: ...GTN 725 750 TSO Installation Manual Page 2 9 190 01007 02 Rev A Figure 2 1 GPS Antenna Installation Considerations...

Страница 36: ...OM transceiver and COM antenna including the GTN COM antenna ELT antenna and DF receiver antenna is critical Use the following guidelines in addition to others in this document when locating the GTN a...

Страница 37: ...r connector and tooling information Refer to Section 3 10 for recommended coax cable Refer to Appendix D for the appropriate wiring connections to assemble the wiring connector Once the cable assembli...

Страница 38: ...Page 2 12 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 This page intentionally left blank...

Страница 39: ...00 BLK 10W 1 GTN 750 010 00890 00 010 00890 50 011 02282 50 GRY 1 Unit is available with COM and is calibrated for both 10W and 16W COM 16W COM is a software enablement feature using an enablement car...

Страница 40: ...screws qty 4 and O ring qty 1 An antenna doubler may also be required Refer to the appropriate antenna installation data To secure the antenna 8 washers qty 4 and 8 qty 4 self locking nuts are require...

Страница 41: ...ta Card TAWS Terrain 128 MB Note 1 010 xxxxx xx Data Card TAWS Terrain 256 MB Note 1 010 xxxxx xx Note 1 Data cards 010 xxxxx xx and 010 xxxxx xx are functionally equivalent 3 4 Miscellaneous Options...

Страница 42: ...e following items are required for installation but not supplied Wire MIL W 22759 16 or equivalent Shielded Wire MIL C 27500 or equivalent Mounting Screws 8 minimum AN577 6 32 screw with 100 countersi...

Страница 43: ...cabling instructions on Figure 3 1 If the connector is provided by the installer follow the connector manufacturer s instructions for cable preparation Figure 3 1 Coaxial Cable Installation The card...

Страница 44: ...1 00 336 00021 00 Military P N N A M39029 58 360 AMP N A 204370 2 Positronic N A MC8522D ITT Cannon N A 010 2042 000 Notes 1 For configuration module pins ensure that the crimp tool is set to crimp 28...

Страница 45: ...the aircraft panel using six 6 32 flat head screws and six self locking nuts The screws are inserted from the inside through the holes in the sides of the rack 4 If the back plate was previously remov...

Страница 46: ...ed for each connection To maintain integrity of the WAAS signal the GPS antenna coaxial cable must have a minimum of two shields e g RG 400 or RG 142B NOTE If RG 142B or RG 400 is used 1 5 dB equates...

Страница 47: ...nd harness buildup is performed in the shop the coax termination may be provisioned by using a 6 inch inline BNC connection This would be an acceptable place to insert the VSWR Any problem with the an...

Страница 48: ...Page 3 10 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 This page intentionally left blank...

Страница 49: ...32 OUT 1 Out 9 ARINC 429 OUT 2A Out 10 ARINC 429 OUT 1A Out 11 MAIN TO OUT Out 12 MAIN VERTICAL UP OUT Out 13 MAIN LATERAL SUPERFLAG OUT Out 14 OBS ANNUNCIATE Out 15 GPS ANNUNCIATE Out 16 OBS MODE SEL...

Страница 50: ...H ANNUNCIATE Out 56 ILS GPS APPROACH Out 57 TAWS INHIBIT ANNUNCIATE Out 58 FAN TACH IN In 59 FAN POWER OUT 12 VDC Out 60 MAIN OBS STATOR G GND 61 LIGHTING BUS 2 HI In 62 CONFIG MODULE DATA I O 63 CONF...

Страница 51: ...ET OUT 4A Out 5 ETHERNET OUT 4B Out 6 ETHERNET IN 1A In 7 ETHERNET IN 1B In 8 ETHERNET OUT 1A Out 9 ETHERNET OUT 1B Out 10 SYSTEM ID PROGRAM In 11 SPARE DISC IN D In 12 SPARE DISC OUT B Out 13 ETHERNE...

Страница 52: ...2 INTERCOM ENABLE function not currently implemented In 13 SPEAKER OUT function not currently implemented Out 14 RESERVED In 15 RESERVED Out 16 RESERVED In 17 RESERVED In 18 500 COM AUDIO LO 19 AUX AU...

Страница 53: ...OBS STATOR G GND Out 15 VOR LOC SUPERFLAG Out 16 500 VOR LOC AUDIO OUT HI Out 17 500 VOR LOC AUDIO OUT LO Out 18 SERIAL DME CLOCK In Out 19 SERIAL DME DATA In Out 20 SERIAL DME RNAV CH REQ In 21 SERI...

Страница 54: ...ME 1MHZ C Out 48 RESERVED 49 AIRCRAFT GND 50 RESERVED 51 AIRCRAFT POWER In 52 AIRCRAFT POWER In 53 GLIDESLOPE FLAG Out 54 PAR DME 100KHZ E Out 55 GLIDESLOPE DOWN Out 56 PAR DME 1MHZ E Out 57 RESERVED...

Страница 55: ...NCHRO REF LO In 16 ARINC 429 IN 3B In 17 ARINC 429 IN 4B In 18 ARINC 453 708 IN 1A function not currently implemented In 19 ARINC 453 708 TERM 1B function not currently implemented In 20 ARINC 453 708...

Страница 56: ...7 RESERVED 48 RESERVED 49 RS 232 GND 5 50 RS 232 GND 6 51 RESERVED 52 RESERVED 53 SPARE INPUT 1 In 54 SYNCHRO VALID INPUT ACTIVE HI 55 RESERVED 56 SYNCHRO Z In 57 RESERVED 58 RESERVED 59 RESERVED 60 A...

Страница 57: ...pins must be connected The power inputs P1003 30 P1003 43 and P1003 44 provide power for the COM radio All three pins must be connected The power inputs P1004 51 and P1004 52 provide power for the NA...

Страница 58: ...ction of velocity vector over the ground Distance to waypoint Cross track error Desired track Destination waypoint identifier Bearing to destination waypoint Magnetic variation Navigation and warning...

Страница 59: ...Course 1 113G Message Checksum 114 Desired Track True 115 Waypoint Bearing True 116 Cross Track Distance 116G 1 Cross Track Distance 117G Vertical Deviation 117P Vertical Deviation 121 Horizontal Comm...

Страница 60: ...ation Via Flight Plan 371G Specific Equipment ID 377 Equipment Hex ID Code 1 Label 116G and 326G utilize the optional resolution extension bits bits 11 13 The following labels are output on the VOR IL...

Страница 61: ...EIA Standard RS 232C with an output voltage swing of at least 5 V when driving a standard RS 232 load 4 3 4 2 2 ARINC 429 Pin Name Connector Pin I O ARINC 429 OUT 1A P1001 10 Out ARINC 429 OUT 1B P100...

Страница 62: ...22 OUT 1 P1005 10 I O RS 485 2B 422 OUT 2 P1005 11 I O The RS 422 485 ports are compatible with EIA Standard RS 485 RS 422 when configured as RS 422 with a differential output voltage swing of at leas...

Страница 63: ...ETHERNET IN 3 A P1002 23 In ETHERNET IN 3 B P1002 24 In ETHERNET OUT 4 A P1002 4 Out ETHERNET OUT 4 B P1002 5 Out ETHERNET IN 4 A P1002 13 In ETHERNET IN 4 B P1002 14 In The Ethernet based HSDB High...

Страница 64: ...Electrical Characteristics 4 3 7 2 1 Deviation Pin Name Connector Pin I O MAIN LATERAL LEFT OUT P1001 49 Out MAIN LATERAL RIGHT OUT P1001 68 Out MAIN VERTICAL UP OUT P1001 12 Out MAIN VERTICAL DOWN O...

Страница 65: ...ector Pin I O OBS MODE SELECT P1001 16 In AUDIO INHIBIT IN P1001 36 In TAWS INHIBIT IN P1001 37 In AIR GROUND P1001 38 In CDI SOURCE SELECT P1001 39 In DEMO MODE SELECT P1002 1 In SYSTEM ID PROGRAM P1...

Страница 66: ...the GTN display 4 3 9 6 DEMO MODE SELECT The DEMO MODE SELECT discrete input may be used to select Demo Mode on the GTN When this pin is connected to ground during power up the GTN starts up in Demo...

Страница 67: ...ive All discrete outputs from the GTN are Active Low Each is an open drain output capable of sinking 500 mA when active 4 3 10 1 OBS ANNUNCIATE The OBS ANNUNCIATE output is driven to indicate GPS OBS...

Страница 68: ...e is available the MESSAGE ANNUNCIATE output is active and the message annunciator flashes When status messages remain effective the message annunciator illuminates continuously 4 3 10 9 APPROACH ANNU...

Страница 69: ...19 TIME MARK OUT Pin Name Connector Pin I O TIME MARK OUT A P1001 3 Out TIME MARK OUT B P1001 22 Out TIME MARK OUT outputs a differential 1 ms 1 s wide pulse once every second TIME MARK OUT is a logic...

Страница 70: ...ision Standards Committee J M 4 43 PAL Phase Alternating Line B D G H I M N Nc 60 SECAM Sequential Color with Memory B D G K K1 L Composite video is a one wire format with intensity color and timing i...

Страница 71: ...oviding minimum 70mVrms into a 1000 load COM MIC 1 AUDIO IN HI and MIC 2 AUDIO IN HI are set in the factory so that 100 mVrms modulates the transmitter to 85 nominally at 1000 Hz The microphone gain a...

Страница 72: ...The COM REMOTE TRANSFER discrete input may be used to flip flop between the active and standby COM frequencies A momentary low on this pin will load the standby COM frequency into the active COM freq...

Страница 73: ...in will load the standby NAV frequency into the active NAV frequency field 4 3 15 VOR ILS Indicator GTN 750 only 4 3 15 1 VOR ILS Indicator Function NOTE Because the GTN 750 includes a CDI button that...

Страница 74: ...OC FROM P1004 2 Out The output is capable of driving up to three 200 meter loads When indicating TO the output is 225 75 mVDC When indicating FROM output is 225 75 mVDC When invalid information is pre...

Страница 75: ...voltage is not more than 1 0 V when sinking 20 mA The maximum off state leakage current with respect to GND is less than 10 A 4 3 16 RMI OBI GTN 750 only 4 3 16 1 RMI OBI Function The VOR OBI output p...

Страница 76: ...le sinking 20 mA The maximum off state leakage current with respect to ground is less than 10 A DME COMMON must be pulled low to indicate to the GTN 750 that it is the device channeling the DME DME CO...

Страница 77: ...the cabling and control systems Ensure that all wiring is installed as described in Section 2 6 Prior to powering up the GTN the wiring harness must be checked for proper connections to the aircraft...

Страница 78: ...l does not obstruct the unit from properly engaging in the rack 5 4 Configuration Mode Operations Configuration mode is used to configure the GTN settings for each specific installation To access conf...

Страница 79: ...INC 429 button This page configures the four ARINC 429 input ports and the three ARINC 429 output ports Select the correct speed for each port depending upon the installed interfaced equipment by touc...

Страница 80: ...perature and speed information from the following systems Collins Pro Line 21 Bendix King EFS 40 50 with SW 1201 or later Garmin GAD 42 Selected course heading and true airspeed data from the Garmin G...

Страница 81: ...a includes navigation and flight plan information including graphical representation of flight plan procedures to the following EFIS systems Honeywell Primus 1000 GAMA 429 Grph w Int ARINC 429 data as...

Страница 82: ...data ICAO address and Flight ID GTX 33 2 GTX 33 status data ICAO address and Flight ID GTX 33 1 with TIS GTX 33 status data TIS data ICAO address and Flight ID GTX 33 2 with TIS GTX 33 status data TI...

Страница 83: ...Fuel Air Data Computer Stormscope Series II with NAVAID Moving Map Aviation no Altitude Serial position velocity and navigation data to the following units Garmin MX20 V5 5 or earlier Horizon DDMP IN...

Страница 84: ...5 If a Garmin LRU is connected to a specific Ethernet port then configure the port as Connected If no LRU is connected to the port configure it as Not Connected 5 4 4 Interface Equipment Page Touch t...

Страница 85: ...n sensor selection must be accomplished on the EFIS or its control panel SELECTED COURSE FOR GPS If it is desired to ignore a selected course input for GPS operation in OBS mode touch the button to th...

Страница 86: ...track the Lighting Bus 1 levels Lighting Bus 2 Key lighting levels track the Lighting Bus 2 levels Note that the display source can only be configured to track the photocell or lighting bus 1 MINIMUM...

Страница 87: ...ease in the input level This field has a range of 0 100 and is set to 50 as the default setting OFFSET Adjusts the lighting level up or down for any given input level This field has a range of 0 zero...

Страница 88: ...lighting bus voltage source 5 4 7 Audio Configuration Page The Audio Configuration page allows the adjustment of volume alerts See Figure 5 11 Touch the Audio button on the GTN Setup page To adjust th...

Страница 89: ...ground threshold is the speed at which the GTN transitions from a ground state to an airborne state and vice versa To adjust the air ground threshold touch the button to the left and enter a value Th...

Страница 90: ...o enable or disable the COM radio touch the button to toggle between Enabled and Disabled The COM radio defaults to enabled state See Figure 5 15 COM RF SQUELCH This setting configures the RF squelch...

Страница 91: ...Verify OBS operation by checking that the course displayed on the GTN is within 2 of the selected course Do this at 30 intervals around the OBS card ARINC 429 CONFIGURATION SPEED RX AND TX Selection D...

Страница 92: ...data output Selection Description King serial King Serial DME tuning data Parallel 2x5 2 of 5 parallel DME tuning Parallel BCD Shifted BCD Binary Coded Decimal parallel DME tuning Parallel slip Slip c...

Страница 93: ...SE display At 30 increments around the OBS card ensure that the indicated value is within 2 of the value set on the indicator If the resolver is not within 2 calibrate the resolver as described in Sec...

Страница 94: ...hat the appropriate external annunciator illuminates when the output is set to ACTIVE and extinguishes when the output is set to INACTIVE If the output is not connected to an annunciator but provides...

Страница 95: ...l anticipated noise environmental conditions 1 Touch the Audio configuration page from the GTN Setup page See Figure 5 19 2 Next to Alert Audio increase or decrease the volume by touching the or butto...

Страница 96: ...ght levels accordingly This check verifies that the interface is connected correctly CAUTION When 14 VDC or 28 VDC lighting buses are connected to the GTN connection of the aircraft lighting bus to th...

Страница 97: ...ication flag pulled Glideslope Vert Deviation Half scale up deviation flag pulled Annunciators All On Bearing to Waypoint RMI 135 Selected Course OBS The GTN displays the OBS value 149 5 if interfaced...

Страница 98: ...data from the GTN and is functioning properly 5 6 3 VHF COM Interference Check NOTE The interference check must be completed on all IFR installations NOTE It is known that certain non aviation radios...

Страница 99: ...31 275 MHz 121 225 MHz 131 300 MHz 121 250 MHz 131 325 MHz 131 200 MHz 131 350 MHz NOTE For VHF radios with 8 33 kHz channel spacing include the following frequencies in addition to those listed above...

Страница 100: ...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 repo...

Страница 101: ...period the altitude display on the GTN will be dashed out 7 If there are multiple altitude sources remove power from the currently active source and apply power to another source that has not been ch...

Страница 102: ...is displayed correctly 6 Cycle power to the second GTN and acknowledge the prompts until it gets to the self test page 7 Switch to GPS2 data by pressing the 1 2 key on the EFS40 50 control panel and...

Страница 103: ...8 Select VLOC on GTN 1 and verify that the SN3308 displays NAV 1 or NAV 2 depending on what navigation source the GTN is 9 Using a VOR test set verify that the CDI deviation on the SN3308 is displayed...

Страница 104: ...ale up NOTE If the deviations are not as described the EHSI EFIS does not scale the GTN deviations properly and cannot be certified for GPS based guidance Contact Garmin for further assistance 5 6 9 5...

Страница 105: ...d as described Sections 5 6 9 9 1 and 5 6 9 9 2 Each of these procedures involves verifying that the satellite signal is acquired and tracked Locate the aircraft where there is a clear view of the sou...

Страница 106: ...5 6 9 11 External RMI OBI Interface Check The GTN RMI OBI output can be used to drive an RMI or OBI navigation indicator This check verifies that the RMI OBI is receiving data from the GTN If the foll...

Страница 107: ...OR station 5 6 9 12 DME Tuning Check GTN 750 Only If the GTN is set up to remotely channel a DME verify the interface as described in this section 1 Select a VOR ILS channel that corresponds to 1 a DM...

Страница 108: ...y that the display of flight plan data is consistent with the CDI indication deviation TO FROM in the pilot s primary field of view 5 7 2 VHF COM Flight Check GTN 750 After the installation is complet...

Страница 109: ...Verify that the GPSS mode disengages 5 7 6 TAWS Audio Flight Check TAWS equipped Units Only NOTE The TAWS volume needs to be loud enough to ensure that aural alerts are audible under all anticipated...

Страница 110: ...ilot s Operating Handbook POH 1 Fill in the required airplane information in the AFMS 2 Fill in the appropriate checkbox in the Limitations section of the AFMS corresponding to the autopilot coupling...

Страница 111: ...Keys In 2 High Low ____________________ Source ___________ __________ In 3 High Low ____________________ Resp Time Min ____ _____ ____ _____ In 4 High Low ____________________ Slope Offset ____ _____...

Страница 112: ...stacle Ahead Pull Up 2x GDL Configuration N A ITI Caution Caution Terrain 2x Attenuation ______________ Terrain Ahead 2x Model GDL 69A GDL 69 ITI Warning Terrain 2x Pull Up 2x Terrain Ahead Pull Up 2x...

Страница 113: ...50 VHF COM INTERFERENCE N A Sandel SN3308 VHF COM interference checked N A Sandel SN3500 4500 N A ARINC 429 Traffic System VHF NAV CHECKOUT GTN 750 ONLY N A Ryan TCAD VOR reception checked N A L 3 Com...

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Страница 115: ...etermine that the aircraft installation conditions are within the TSO standards TSO articles must have separate approval for installation in an aircraft The article may be installed only if performed...

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Страница 117: ...disposed of properly Battery replacement and removal must be performed by professional services The GTN includes an internal battery that will last 5 to 8 years The battery is used for internal time...

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Страница 119: ...A 1 190 01007 02 Rev A Appendix A ENVIRONMENTAL QUALIFICATION FORM For RTCA DO 160F Environmental Qualification Forms EQFs visit the Dealers Only site on http www garmin com The GTN 725 and GTN 750 u...

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Страница 121: ...agraphs for description ETX ASCII end of text character 03 hex B 1 3 Output Sentence Type 1 The Type 1 output sentences have the following general format id item designator single ASCII alphabetic cha...

Страница 122: ...n knots E d d d d d Distance to waypoint in tenths of nautical miles G s n n n n Cross track error where s L left or R right of course nnnn error in hundredths of nautical miles I d d d d Desired trac...

Страница 123: ...ary bytes CR ASCII carriage return character 0D hex LF ASCII line feed character 0A hex Each waypoint in the route being navigated by the GTN has a Type 2 sentence output by the GTN approximately once...

Страница 124: ...sequence number of waypoint unsigned binary wpt 1 5 Destination waypoint identifier will be blank filled on right if less than 5 characters in identifier lat 1 2 3 s d d d d d d d x x m m m m m m x h...

Страница 125: ...Encoders Altitude Serializers and Altitude Converters RMS sp 12345T 12ul CR Where RMS ASCII characters sp space 0x20 sign indicator 0x2b or 0x2d 12345 altitude in feet T ASCII character sign indicato...

Страница 126: ...0x03 Note Checksum is calculated by adding each byte in the message 2 through 51 such that carries are discarded to give a one byte result The ASCII coded decimal representation of that byte is given...

Страница 127: ...esents rate of turn degrees per second ZK 901 CR LF ZK ASCII characters sign 901 represents vertical speed tens of ft minute ZL234 CR LF ZL ASCII characters 234 represents heading degrees from north Z...

Страница 128: ...ow right Twin only tenths gallons hour GN90123 CR LF GN ASCII characters 90123 represents fuel used right Twin only tenths gallons GO4567 CR LF GO ASCII characters 4567 represents fuel flow left or Si...

Страница 129: ...error log reason indicator SR67890 CR LF SR ASCII characters 67890 represents fuel remaining tenths gallons SS123 CR LF SS ASCII character 123 represents ground speed knots ST456 CR LF ST ASCII charac...

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Страница 131: ...endix C MECHANICAL DRAWINGS C 1 Drawing List The following drawings are included in this section Figure C 1 GTN Mounting Rack Dimensions Figure C 2 GTN Mounting Rack Installation Figure C 3 GTN Mounti...

Страница 132: ...Page C 2 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 This page intentionally left blank...

Страница 133: ...GTN 725 750 TSO Installation Manual Page C 3 190 01007 02 Rev A Figure C 1 GTN Mounting Rack Dimensions...

Страница 134: ...Page C 4 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure C 2 GTN Mounting Rack Installation...

Страница 135: ...GTN 725 750 TSO Installation Manual Page C 5 190 01007 02 Rev A Figure C 3 GTN Mounting Rack Assembly...

Страница 136: ...Page C 6 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure C 4 GTN Recommended Panel Cutout Dimensions...

Страница 137: ...Figure D 11 GTN GDU AHRS Interconnect Figure D 12 GTN ARINC 429 EFIS Interconnect Figure D 13 GTN GDL 69 69A Interconnect Figure D 14 Audio Panel Interconnect Figure D 15 Air Data IRU AHRS RS 232 Int...

Страница 138: ...Page D 2 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 This page intentionally left blank...

Страница 139: ...GTN 725 750 TSO Installation Manual Page D 3 190 01007 02 Rev A Figure D 1 GTN System Interface Diagram...

Страница 140: ...TING BUS 18 17 LIGHTING BUS 2 LO LIGHTING BUS 2 HI 61 42 AUDIO PANEL COM 1 MIC AUDIO HI COM 1 MIC KEY OUT COM 1 AUDIO HI COM 1 AUDIO LO NAV 1 AUDIO HI NAV 1 AUDIO LO 500 VOR LOC AUDIO OUT HI 500 VOR L...

Страница 141: ...GTN 725 750 TSO Installation Manual Page D 5 190 01007 02 Rev A Figure D 2 GTN 750 Typical Installation Sheet 2 of 2...

Страница 142: ...Page D 6 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 3 GTN 725 Typical Installation Sheet 1 of 2...

Страница 143: ...GTN 725 750 TSO Installation Manual Page D 7 190 01007 02 Rev A Figure D 3 GTN 725 Typical Installation Sheet 2 of 2...

Страница 144: ...IRCUIT BREAKER SHOULD BE LABELED AS GPS FOR THE GTN 725 AND NAV GPS FOR THE GTN 750 s CONFIG MODULE POWER CONFIG MODULE GND CONFIG MODULE DATA CONFIG MODULE CLOCK 4 1 3 2 RED BLK YEL WHT LIGHTING BUS...

Страница 145: ...TVS ASSEMBLY PROTECTION IS ONLY REQUIRED ON ONE GTN IN A DUAL NAV COM INSTALLATION s CONFIG MODULE POWER CONFIG MODULE GND CONFIG MODULE DATA CONFIG MODULE CLOCK 4 1 3 2 RED BLK YEL WHT LIGHTING BUS 1...

Страница 146: ...Page D 10 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 5 GTN Antenna Interconnect Sheet 1 of 3...

Страница 147: ...GTN 725 750 TSO Installation Manual Page D 11 190 01007 02 Rev A Figure D 5 GTN Antenna Interconnect Sheet 2 of 3...

Страница 148: ...Page D 12 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 5 GTN Antenna Interconnect Sheet 3 of 3...

Страница 149: ...GTN 725 750 TSO Installation Manual Page D 13 190 01007 02 Rev A Figure D 6 GTN Main Indicator Interconnect...

Страница 150: ...Page D 14 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 7 GTN Autopilot Interconnect...

Страница 151: ...GTN 725 750 TSO Installation Manual Page D 15 190 01007 02 Rev A Figure D 8 GTN Traffic Interconnect...

Страница 152: ...Page D 16 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 9 GTN Transponder Interconnect...

Страница 153: ...GTN 725 750 TSO Installation Manual Page D 17 190 01007 02 Rev A Figure D 10 Dual GTN to Single GDU Interconnect...

Страница 154: ...KSHELL THE SHIELD LEADS MUST BE LESS THAN 3 0 CONNECT OTHER SHIELD GROUNDS TO AIRCRAFT CHASSIS WITH AS SHORT A CONDUCTOR AS PRACTICAL 4 FOR GTN 7XX CONFIGURATION SETTINGS SEE SECTION TBD s P1004 VOR I...

Страница 155: ...A LRN LNAV 2 RECEIVER B NAV 1 RECEIVER A NAV 1 RECEIVER B NAV 2 RECEIVER A NAV 2 RECEIVER B GTN 7XX 2 48 ARINC 429 IN 1 A P1001 P1004 67 ARINC 429 IN 1 B 10 ARINC 429 OUT 1A 29 ARINC 429 OUT 1B 24 VOR...

Страница 156: ...Page D 20 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 12 GTN ARINC 429 EFIS Interconnect Sheet 2 of 2...

Страница 157: ...GTN 725 750 TSO Installation Manual Page D 21 190 01007 02 Rev A Figure D 13 GTN GDL 69 69A Interconnect...

Страница 158: ...E PIN 6 CONNECTING TWO MICROPHONES TO MIC AUDIO HI LO AT THE SAME TIME MAY RESULT IN WEAK OR DISTORTED AUDIO MIC ISOLATION RELAYS ARE RECOMMENDED SO THAT ONLY ONE MIC IS ACTIVE AT A TIME 7 USE THE AUD...

Страница 159: ...GTN 725 750 TSO Installation Manual Page D 23 190 01007 02 Rev A Figure D 14 Audio Panel Interconnect Sheet 2 of 2...

Страница 160: ...Page D 24 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 15 Air Data IRU AHRS RS 232 Interconnect Sheet 1 of 2...

Страница 161: ...GTN 725 750 TSO Installation Manual Page D 25 190 01007 02 Rev A Figure D 15 Air Data IRU AHRS RS 232 Interconnect Sheet 2 of 2...

Страница 162: ...Page D 26 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 16 Air Data IRU AHRS ARINC 429 Interconnect...

Страница 163: ...GTN 725 750 TSO Installation Manual Page D 27 190 01007 02 Rev A Figure D 17 GAD 42 Interconnect...

Страница 164: ...Page D 28 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 18 VOR ILS Indicator Interconnect...

Страница 165: ...GER UNLESS OTHERWISE SPECIFIED 2 GROUND DESIGNATIONS SHIELD BLOCK GROUND AIRFRAME GROUND 3 AT THE GTN 7XX CONNECT SHIELD GROUNDS TO THE CONNECTOR BACKSHELL THE SHIELD LEADS MUST BE LESS THAN 3 0 CONNE...

Страница 166: ...SHIELD GROUNDS TO AIRCRAFT CHASSIS WITH AS SHORT A CONDUCTOR AS PRACTICAL 4 FOR WX 500 DATA TO BE DISPLAYED ON THE GTN 7XX MAP PAGE THE GTN 7XX MUST HAVE A DIGITAL HEADING SOURCE OR THE WX 500 MUST H...

Страница 167: ...OUND 3 AT THE GTN 7XX CONNECT SHIELD GROUNDS TO THE CONNECTOR BACKSHELL THE SHIELD LEADS MUST BE LESS THAN 3 0 CONNECT OTHER SHIELD GROUNDS TO AIRCRAFT CHASSIS WITH AS SHORT A CONDUCTOR AS PRACTICAL 4...

Страница 168: ...ON s s s NOTES 1 ALL WIRES 24 AWG OR LARGER UNLESS OTHERWISE SPECIFIED 2 GROUND DESIGNATIONS SHIELD BLOCK GROUND AIRFRAME GROUND 3 AT THE GTN 750 CONNECT SHIELD GROUNDS TO THE CONNECTOR BACKSHELL THE...

Страница 169: ...100KHZ B PARALLEL DME 100KHZ C DME COMMON PARALLEL DME 100KHZ D PARALLEL DME 100KHZ E PARALLEL DME 50KHZ 45 46 47 33 56 37 39 40 41 43 54 42 N C N C NOTES 1 ALL WIRES 24 AWG OR LARGER UNLESS OTHERWIS...

Страница 170: ...Page D 34 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 24 Parallel Slip Code DME Tuning Interconnect...

Страница 171: ...GTN 725 750 TSO Installation Manual Page D 35 190 01007 02 Rev A Figure D 25 Heading Synchro Interconnect...

Страница 172: ...Page D 36 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 Figure D 26 GPS Annunciator Interconnect...

Страница 173: ...GTN 725 750 TSO Installation Manual Page D 37 190 01007 02 Rev A Figure D 27 NAV Source Select Annunciator Interconnect...

Страница 174: ...FOR COMPLETE PINOUT AND INTERCONNECT INFORMATION 5 IF EXTERNAL TAWS ANNUNCIATION IS REQUIRED THE ANNUNCIATOR PANELS ON THIS PAGE ARE SUITABLE TO MEET THE ANNUNCIATION REQUIREMENT REFER TO SECTION TBD...

Страница 175: ...GTN 725 750 TSO Installation Manual Page D 39 190 01007 02 Rev A Figure D 29 Switches Interconnect...

Страница 176: ...Page D 40 GTN 725 750 TSO Installation Manual Rev A 190 01007 02 This page intentionally left blank...

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