G1000 LINE MAINTENANCE MANUAL

1.2 LRU Descriptions .............................................................................................................................. 1-2 1.3 G1000 Block Diagrams ..................................................................................................................... 1-6 1.4 User Interface..................................................................................................................................... 1-9 1.5 Recommended Tools ....................................................................................................................... 1-19 2 TROUBLESHOOTING..................................................................................................................... 2-1 2.1 G1000 Alerting System ..................................................................................................................... 2-1 2.2 GDU 104X ....................................................................................................................................... 2-26 2.3 GMA 1347 ....................................................................................................................................... 2-53 2.4 GIA 63/GIA 63W ............................................................................................................................ 2-59 2.5 GRS 77/GMU 44 ............................................................................................................................. 2-72 2.6 GDC 74A ......................................................................................................................................... 2-76 2.7 GEA 71 ............................................................................................................................................ 2-78 2.8 GTX 33 ............................................................................................................................................ 2-92 2.9 GDL 69/69A .................................................................................................................................... 2-94 2.10 GDL 90 ............................................................................................................................................ 2-97 2.11 GFC 700 (BP 2007 and later only) .................................................................................................. 2-98 2.12 Backshell Connectors .................................................................................................................... 2-105 3 EQUIPMENT REMOVAL & INSTALLATION ............................................................................ 3-1 3.1 GDU 104X ......................................................................................................................................... 3-1 3.2 GMA 1347 ......................................................................................................................................... 3-1 3.3 GIA 63/GIA 63W .............................................................................................................................. 3-1 3.4 GRS 77/GMU 44 .............................................................................................................................. 3-1 3.5 GDC 74A ........................................................................................................................................... 3-2 3.6 GEA 71 .............................................................................................................................................. 3-2 3.7 GTX 33 .............................................................................................................................................. 3-2 3.8 GDL 69/69A ...................................................................................................................................... 3-3 3.9 GDL 90 .............................................................................................................................................. 3-3 3.10 GSA 81 .............................................................................................................................................. 3-3 3.11 GSM 85.............................................................................................................................................. 3-3 3.12 Configuration Module........................................................................................................................ 3-4 3.13 GEA 71 Backshell Thermocouple ..................................................................................................... 3-5 Page iv G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 4 UPLOADING SOFTWARE, CONFIGURING, & TESTING ......................................................... 4-1 4.1 GDU 104X ......................................................................................................................................... 4-1 4.2 GMA 1347 ......................................................................................................................................... 4-6 4.3 GIA 63/GIA 63W .............................................................................................................................. 4-9 4.4 GRS 77/GMU 44 ............................................................................................................................. 4-20 4.5 GDC 74A ......................................................................................................................................... 4-31 4.6 GEA 71 ............................................................................................................................................ 4-36 4.7 GTX 33 ............................................................................................................................................ 4-40 4.8 GDL 69A ......................................................................................................................................... 4-45 4.9 GDL 90 ............................................................................................................................................ 4-48 4.10 GSA 81 ............................................................................................................................................ 4-48 5 FINAL SYSTEM CHECKOUT ........................................................................................................ 5-1 5.1 GPS Failure Test ................................................................................................................................ 5-1 5.2 GIA Failure Test ................................................................................................................................ 5-2 5.3 Display Failure Test ........................................................................................................................... 5-2 5.4 AHRS/Air Data Backup Path Test..................................................................................................... 5-3 5.5 Flight Test .......................................................................................................................................... 5-3 5.6 VHF COM Test ................................................................................................................................. 5-3 5.7 VOR/ILS Tests .................................................................................................................................. 5-3 6 PERIODIC MAINTENANCE .......................................................................................................... 6-1 6.1 GFC 700 Visual Inspection Procedure .............................................................................................. 6-2 6.2 GSA 81 Greasing Procedure .............................................................................................................. 6-2 6.3 GSM Slip Clutch Checking and Adjustment Procedure .................................................................... 6-3 6.4 Category A Long Term Power Interrupt Annual Inspection Procedure ............................................ 6-4 APPENDIX A G1000 PINOUT LIST ..................................................................................................... A-1 A.1 GIA 63/GIA 63W ............................................................................................................................. A-1 A.2 GDU 104X ...................................................................................................................................... A-12 A.3 GRS 77............................................................................................................................................ A-14 A.4 GMU 44 .......................................................................................................................................... A-15 A.5 GDC 74A ........................................................................................................................................ A-16 A.6 GEA 71 ........................................................................................................................................... A-18 A.7 GMA 1347 ...................................................................................................................................... A-22 A.8 GTX 33 ........................................................................................................................................... A-26 A.9 GDL 69/69A ................................................................................................................................... A-28 A.10 GSA 81 ........................................................................................................................................... A-30 G1000 Nav III Line Maintenance Manual Page v 190-00352-00 Rev. N APPENDIX B G1000 SYSTEM SOFTWARE & CONFIGURATION ................................................. B-1 B.1 Initial Software & Configuration Overview ..................................................................................... B-2 B.2 Final Configuration Items ............................................................................................................... B-26 B.3 Software/Configuration Troubleshooting ....................................................................................... B-30 B.4 System Communication Hierarchy ................................................................................................. B-31 B.5 Aviation Database ........................................................................................................................... B-32 B.6 TAWS Configuration...................................................................................................................... B-33 B.7 SD Card Use ................................................................................................................................... B-35 Page vi G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 Blank Page G1000 Nav III Line Maintenance Manual Page 1-1 190-00352-00 Rev. N 1 GENERAL DESCRIPTION 1.1 Introduction This manual provides basic troubleshooting, removal and replacement instructions, software and configuration instructions, and return to service information for the G1000 system. Field service of the G1000 is limited to replacing LRUs (Line Replaceable Units). The following outline describes the organization of this manual: Section 1: This section contains a brief description of each LRU and a basic overview of the G1000 system’s normal, reversionary, and configuration modes. The configuration mode user interface is described along with a brief summary of configuration mode functionality. Section 2: This section contains basic troubleshooting instructions for the G1000. Section 3: This section contains basic removal and replacement instructions for G1000 LRUs. Section 4: This section contains basic instructions for uploading software, configuring, and testing the G1000. Section 5: This section contains a checkout of the G1000 system. Only G1000-specific elements are addressed. Section 6: This section contains basic periodic maintenance instructions for the G1000 system. Appendix A: This section contains a list of G1000 pinouts. Appendix B: The section serves as a complete reconfiguration of the G1000 system. Page 1-2 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 1.2 LRU Descriptions GDU 1040/1044B: The GDU 104X display is the most visible portion of the G1000 system. The GDU 104X has a 10.4-inch LCD display with 1024 x 768 resolution. One is configured as a Primary Flight Display or PFD, the other is configured as the Multi- Function Display or MFD. The MFD shows navigation information and engine/airframe instrumentation. The PFD shows primary flight information, in place of traditional gyro systems. Both GDU 104Xs link and display all functions of the G1000 system during flight. The displays communicate with each other and the GIA 63/63W units through a High-Speed Data Bus (HSDB) Ethernet connection. The GDU 1044B provides autopilot controls. GMA 1347: The GMA 1347 integrates NAV/COM digital audio, intercom system and marker beacon controls. Manual display reversion is also controlled by the GMA 1347. The GMA 1347 is normally installed between the MFD and PFD. The GMA 1347 can also be installed in dual-audio panel applications (usually paired with a dual-PFD setup). The GMA 1347 communicates with both GIAs using RS-232 digital interface. Software and configuration settings are received through RS-232 digital interface with the GIA. GIA 63/63W: The GIA is the central ‘Integrated Avionics Unit’ (IAU) to the G1000 system. The GIA functions as a main communications hub, linking all LRUs with the PFD and MFD displays. The GIA contains the GPS receiver, VHF COM/NAV receivers, and system integration microprocessors. The GIA communicates directly with the GDU 104X displays using a HSDB Ethernet connection. Software and configuration settings are sent from the displays through the GIA to LRUs in the system. The GIA 63W contains a WAAS certified GPS receiver. G1000 Nav III Line Maintenance Manual Page 1-3 190-00352-00 Rev. N GRS 77: The GRS 77 is an attitude, heading, and reference, or AHRS, unit that provides aircraft attitude and flight characteristics information to the G1000 displays and GIAs. The unit contains advanced tilt sensors, accelerometers, and rate sensors. In addition, the GRS 77 interfaces with both the GDC 74A Air Data computer and the GMU 44 magnetometer. The GRS 77 also utilizes GPS signals sent from the GIA. Actual attitude and heading information is sent using ARINC 429 digital interface to both GDU 104Xs and GIAs. GMU 44: The GMU 44 magnetometer senses magnetic field information. Data is sent to the GRS 77 ARHS for processing to determine aircraft magnetic heading. This unit receives power directly from the GRS 77 and communicates with the GRS 77 using RS-485 digital interface. GDC 74A: The GDC 74A air data computer compiles information from the pitot/static system and various outside air temperature (OAT) and angle of attack (AOA) sensors. The GDC 74A is responsible to provide pressure altitude, airspeed, vertical speed, and OAT information to the G1000 system. The GDC 74A communicates with the GIA 63/GIA 63W, GDU 104X, and GRS 77 using ARINC 429 digital interface. Software and configuration settings are received through RS-232 digital interface with the GIA 63/GIA 63W Page 1-4 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 GEA 71: The GEA 71 is a microprocessor-based LRU that is responsible for receiving/processing signals from engine and airframe sensors. Sensor examples include engine temperature and pressure sensors as well as fuel measurement and pressure sensors. The GEA 71 communicates directly with both GIAs using RS-485 digital interface. The GEA 71 can serve aircraft from basic single-engine platforms to sophisticated turbine propulsion systems. Software and configuration settings are received through RS-232 digital interface with the GIA. GTX 33: Solid-state Mode-S transponder. Provides Modes A, C, and S functions. Control and operation is directed through the PFD. The transponder communicates with both GIAs through RS-232 digital interface. Software and configuration settings are received through RS-232 digital interface with the GIA. GDL 69/69A: The GDL 69/69A is an XM Satellite Radio data link receiver that receives broadcast weather data. The GDL 69A is the same as the GDL 69 with the addition of XM Satellite Radio audio entertainment. Weather data and control of audio channel and volume is displayed on the GDU 104X MFD, via a High-Speed Data Bus (HSDB) Ethernet connection. The GDL 69A is also interfaced to the GMA 1347 Audio Panel for amplification and distribution of the audio signal. G1000 Nav III Line Maintenance Manual Page 1-5 190-00352-00 Rev. N GDL 90: The GDL 90 is a remote-mounted product that contains a GPS/WAAS receiver and a Universal Access Transceiver. The GDL 90 transmits data via the UAT data link. It will receive data from other UAT-equipped aircraft as well as FIS-B weather – the received data may be output to an appropriate display. GSA 81 & GSM 85: The GSA 81 servo actuator is an electromechanical LRU that provides automatic control of pitch, roll, and pitch trim. It also provides manual electric trim functionality. The GSA 81 contains a motor-control and monitor circuit board, as well as a solenoid and a brushless DC motor. The GSA 81 receives serial RS-485 data packets from the GIA 63Ws. The GSM 85 servo mount is mounted to the aircraft structure, via a custom mounting bracket, and is responsible for transferring the output torque of the GSA 81 servo actuator to the mechanical flight-control surface linkage. GTP 59: The GTP 59 OAT Probe provides outside air temperature measurement which is used by the GDC 74A. Communication interface to the G1000 is through the GDC 74A. . Page 1-6 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 1.3 G1000 Block Diagrams 1.3.1 Typical System Interconnect Figure 1-1 shows a typical Cessna Nav III G1000 system interconnect. Figure 1-1. Typical Cessna Nav III G1000 System Interconnect G1000 Nav III Line Maintenance Manual Page 1-7 190-00352-00 Rev. N 1.3.2 Flight Instrumentation The GRS 77 AHRS, GDC 74A Air Data Computer, and GMU 44 Magnetometer are responsible for providing the G1000 system with flight instrumentation. Data consist of aircraft attitude, heading, altitude, airspeed, vertical speed, and outside air temperature information, all displayed on the PFD (data is displayed on the MFD in reversionary mode). Primary data outputs from the GRS and GDC are sent directly to the PFD via ARINC 429. Secondary data paths connect the GRS to the MFD. Additional communications paths connect the GRS and GDC to both GIA units, providing quadruple redundant interface. The GRS 77 receives GPS data from both GIAs, airspeed data from the GDC, and magnetic heading from the GMU. Using these three external sources, combined with internal sensor data, the GRS accurately calculates aircraft attitude and heading. Figure 1-2. G1000 Flight Instrumentation Data Paths Page 1-8 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 1.3.3 Navigation/Communication Systems The GIAs contain VHF COM, VHF NAV, and GPS receivers. COM and NAV audio is sent via digital audio to the GMA 1347 Audio Panel. GPS information is sent to the GRS 77 AHRS and both displays for processing. The GTX 33 Mode S Transponder communicates with both GIAs. Transponder data is sent from the GIAs to the PFD. The #2 GIA outputs analog HSI signals to the KAP 140 autopilot, if equipped. In the case of the GFC 700 both of the GIAs communicate to the servos through RS-485, see Figure 1-1. The GMA 1347 Audio Panel controls audio selections and the display reversionary mode. Figure 1-3. G1000 Navigation/Communication Data Paths G1000 Nav III Line Maintenance Manual Page 1-9 190-00352-00 Rev. N 1.4 User Interface 1.4.1 Control & Operation All control and operation of G1000 equipment as normally used in flight occurs through the PFD, MFD, or GMA 1347 audio panel. Figure 1-4 identifies various GDU 104X buttons. See the appropriate G1000 Nav III Cockpit Reference Guide, as well as the appropriate AFMS for more detail on control and operation of the G1000. Figure 1-4. GDU 104X Control Interface Page 1-10 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 1.4.2 GMA 1347 Control Figure 1-5. GMA 1347 Control Interface 1.4.3 Configuration Mode Operation The configuration mode exists to provide the installer or technician with a means of configuring, checking, and calibrating various G1000 sub-systems. Troubleshooting/diagnostics information can also be derived from this mode. 1. To start the system in Configuration Mode: 2. Press and hold the ENT key on the PFD while applying power. 3. Release the ENT key after ‘INITIALIZING SYSTEM’ appears in the upper left corner of the PFD. 4. Power on the MFD in the same manner. It is best to have both displays in the same mode. NOTE Configuration settings for each G1000 LRU must be adjusted on the PFD. G1000 Nav III Line Maintenance Manual Page 1-11 190-00352-00 Rev. N 1.4.4 FMS Cursor The FMS knob is the primary control for the G1000 system. Operation is similar to the Garmin 400/500 Series units. To cycle through different configuration screens: To change page groups: Rotate the large FMS knob. To change pages in a group: Rotate the small FMS knob. To activate the cursor for a page, press the small FMS knob directly in, as one would push a regular button. To cycle the cursor through different data fields, rotate the large FMS knob. To change the contents of a highlighted data field, rotate the small FMS knob. This action either brings up an options menu for the particular field, or in some cases allows the operator to enter data for the field. To confirm a selection, press the ENT key. To cancel a selection, press the small FMS knob. Pressing the small FMS knob again, deactivates the cursor. The CLR key may also be used to cancel a selection or deactivate the cursor. Figure 1-6. FMS Control Knob Page 1-12 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 1.4.5 Softkeys Some configuration pages have commands or selections that are activated by the GDU 104X softkeys. If a softkey is associated with a command, that command will be displayed directly above the key. A grayed-out softkey shows a command that is unavailable. A softkey that is highlighted shows the current active selection. Figure 1-7. G1000 Softkeys 1.4.6 Configuration Mode Overview The following diagram shows the layout and organization of various configuration mode page groups and pages. Figure 1-8. Configuration Mode Navigation G1000 Nav III Line Maintenance Manual Page 1-13 190-00352-00 Rev. N 1.4.7 Data Transmission Indicators Several configuration screens utilize indicator light to show data and/or component status. Unless otherwise noted, the following applies to all such indicators: Green Light: Expected discrete data is successfully received and true or status is good. Red Light: Expected discrete data is not received or is invalid, or status is bad. No Light (Black): no discrete data is expected, it is received successfully and off, or status is not received or is invalid. 1.4.8 Configuration Page Protection The configuration mode contains pages that display various settings that are critical to aircraft operation and safety. At these pages, the technician is unable to modify or change settings unless they are authorized and equipped to do so. However, most protected pages are viewable to allow technicians greater system awareness for troubleshooting. 1.4.9 G1000 Loader Card Interface The G1000 Loader Card provides a means of loading software and configuration files to the system. The G1000 Loader Card uses a 128 MB Secure Digital (SD) data card that contains all necessary files to load software and configuration settings to all G1000 LRUs. Nearly all software and configuration parameters are pre-determined by Garmin and/or Cessna. During removal and replacement of LRUs, software and configuration files may need to be reloaded. To satisfy TC/STC requirements for a specific aircraft, it is critical that the technician use the correct G1000 Loader Card part number. Each Loader Card’s part number defines all files found on the card for a specific G1000 installation. Note that certain configuration settings, such as aircraft registration number (‘N#’) must be entered manually. A sample procedure for loading software and configuration settings can be found in Section 4 of this manual. CAUTION Always use caution when using G1000 Software Loader Cards during maintenance. The G1000 system is designed to immediately initialize the card upon power-up. On-screen prompts must be given careful attention in order to avoid potential loss of data. Always read and thoroughly understand all related information before attempting to use the G1000 Software Loader Cards. Page 1-14 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 1.4.10 Configuration Files A G1000 Loader Card typically contains the following configuration files: AIRFRAME: This file contains data such as airspeed parameters, engine/airframe sensor limitations, fuel tank parameters and alerting system settings that tailor a G1000 PFD or MFD to a specific airframe. SYSTEM: This file configures the G1000 Ethernet to communicate with a PFD, MFD, and GIAs. MANIFEST: This file loads a manifest of all software part numbers and versions associated with an approved system configuration. MFD1: This file configures the MFD serial/discrete communications and alerting system settings. PFD1: This file configures the PFD serial/discrete communications and alerting system settings. GIA1/GIA2: These files configure GIA1 and GIA 2 serial/discrete communications settings. GMA1: This file configures the GMA 1347 audio and serial communications settings. GTX1: This file configures the GTX transponder and serial communications settings. GEA1: This file configures GEA 71 engine/airframe parameters. GDC1: This file configures the GDC 74A air data values. GDL69: This file configures the GDL 69A serial communications settings CALIBRATION: This file configures calibration values for various analog sensors connected to the GEA (fuel quantity, fuel flow, etc.) AUDIO: This file configures all of the audio messages for the G1000 system. This includes both tones and voice messages that are utilized for alerts, cautions, and warnings. The above files are loaded during the configuration process. Each file is sent directly to the applicable LRU. The same file is also stored into PFD internal configuration memory and configuration module. If the PFD is replaced, the configuration module retains all configuration files in the aircraft. NOTE The GRS 77 AHRS and GMU 44 Magnetometer do not utilize a configuration file. However, these LRUs do require several calibrations during installation and/or maintenance. G1000 Nav III Line Maintenance Manual Page 1-15 190-00352-00 Rev. N 1.4.11 Configuration File Retention The G1000 system is designed to store all configuration settings in various places so that the configuration of the system is retained in the aircraft during maintenance. Since the G1000 Integrated Flight Deck is installed in a variety of aircraft, it is imperative that aircraft-specific data be retained at the aircraft level. Figures 1-9 and 1-10 show a block diagram of how a typical G1000 system stores configuration settings. Figure 1-9. G1000 Configuration Storage Page 1-16 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 The GRS 77 and GDC 74A configuration modules function differently than the rest of the system. The GDC 74A’s configuration file is loaded directly to GDC internal memory, a copy is also stored in the GDC configuration module. The GRS 77 configuration module stores calibration data recorded during installation calibration procedures, and does not store configuration settings. Figure 1-10. GRS/GDC Configuration Storage G1000 Nav III Line Maintenance Manual Page 1-17 190-00352-00 Rev. N 1.4.12 SET>ACTV / ACTV>SET Throughout various configuration mode pages, there are SET and ACTIVE columns for input/output settings and other parameters. SET: Refers to a setting or group of settings that reside in the PFD’s internal memory and/or master configuration module (See Figure 1-11). ACTIVE: Refers to a current setting stored and used in a LRU. LRUs store the ‘active’ settings within internal memory. Data can be manually copied from one column to the other by using the following two softkeys: SET>ACTV (read ‘Set to Active’) softkey: Allows the installer to send the information in the SET column (data stored in the master configuration module) to the ACTV column (data used by LRU). ACTV>SET (read ‘Active to Set’) softkey: Causes the LRUs current settings to be copied to the master configuration module as SET items. In the first example shown in Figure 1-11, the SET columns do not match the ACTIVE columns. The inequality between SET and ACTIVE indicates a configuration mismatch. By pressing the SET>ACTV softkey, this copies the SET column to the LRU unit’s configuration memory. The settings then become the ACTIVE settings for the LRU being configured. Page 1-18 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 1.4.13 ACTV>SET Interface The only time ACTV>SET should be used is when the master configuration module fails and must be replaced. In this circumstance the ACTV>SET softkey may be used to reload correct configuration settings from previously installed LRUs. Should a LRU be replaced along with the master configuration module, the LRU needs to be reconfigured using the G1000 SW Loader Card. WARNING The ACTV>SET softkey must be used with caution! If an improperly configured unit is installed, this softkey causes the wrong configuration to replace the correct aircraft configuration! G1000/PA32 System Maintenance Manual Page 3-9 Revision 1 190-00343-03 Figure 1-11. SET/ACTV Feature In most cases, when a setting is changed, the newer setting will automatically be transferred to the appropriate LRU. The technician receives on-screen confirmation that the configuration is successful, as depicted in Figure 1-12. Likewise, if a configuration error is detected, it too is shown in similar fashion. Figure 1-12. Configuration Status G1000 Nav III Line Maintenance Manual Page 1-19 190-00352-00 Rev. N 1.5 Recommended Tools The following tools are needed to perform various maintenance tasks on G1000 equipment: Voltmeter capable of measuring 0-32 Volts DC #2 Phillips Screwdriver 3/32nd inch Hex Tool Digital Level with 0.25 degrees of accuracy capability VHF NAV/COM/ILS ramp tester Transponder ramp tester including Mode S capability for Mode S transponder equipped aircraft Air Data Test Set (ADTS) capable of simulating altitude up to the aircraft’s service ceiling GPS indoor repeater (if outside GPS signals cannot be acquired) Headset/Microphone Page 1-20 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 Blank Page G1000 Nav III Line Maintenance Manual Page 2-1 190-00352-00 Rev. N 2 TROUBLESHOOTING Begin troubleshooting by determining the specific failure. Follow guidance for the appropriate LRU provided in this section. Reference applicable aircraft manufacturer provided wiring diagrams as an aid in troubleshooting. NOTE See Section 3 for instructions on removing and replacing. Once an LRU is replaced, a software update and configuration may be required. See Section 4 for instructions on configuration and uploading software. NOTE If PFD1, MFD1, GIA1 or GIA2 configuration files are loaded during troubleshooting, any optional equipment files for equipment installed in the aircraft must also be loaded. Failure to reload the optional configuration files may deactivate the equipment. Be sure to note any optional equipment installed (by pre-inspection or by logbook entry) before loading PFD/MFD and/or GIA 1/2 configuration files. 2.1 G1000 Alerting System 2.1.1 System Annunciations A red X through a display field; such as Com frequencies, Nav frequencies, or engine data, indicates that display field is not receiving valid data. Figure 2-1 shows display fields that are not receiving valid data and their associated LRUs. See Section 2.1.1.1 for information on troubleshooting system annunciations. Figure 2-1. Red X’d Display Fields Page 2-2 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 2.1.1.1 System Annunciation Troubleshooting Annunciation Associated LRU Solution NAV1 or COM1 GIA1 Check PFD Alert Window for GIA1 configuration, software or failed data path error messages. Correct any errors before proceeding. Swap GIA1 and GIA2 and reconfigure for their new positions to verify location of the problem. o If problem follows GIA1, replace GIA1. Check configuration settings for GIA1 and the PFD. Check Ethernet interconnect from GIA1 to the PFD and unit connector pins for faults. o If problem persists replace PFD. Switch GIA1 and GIA2, to verify location of problem: o If problem follows GIA1, replace GIA1. o If problem persists, replace PFD. NAV2 or COM2 GIA2 Check PFD Alert Window for GIA2 configuration, software or failed data path error messages. Correct any errors before proceeding. Swap GIA1 and GIA2 and reconfigure for their new positions to verify location of problem. o If problem follows GIA2, replace the GIA2. Check configuration settings for GIA2 and the MFD. Check Ethernet interconnect from GIA2 to the MFD and unit connector for faults. o If problem persists, replace the MFD. Switch GIA1 and GIA2, to verify location of problem: o If problem follows GIA2, replace the GIA2. o If problem persists, replace MFD. G1000 Nav III Line Maintenance Manual Page 2-3 190-00352-00 Rev. N Annunciation Associated LRU Solution GPS INTEG or Time GIA1 or 2 Check PFD Alert Window for GIA1/2 configuration, software or failed data path error messages. Correct any errors before proceeding. Verify the aircraft is located where the GPS antennas have a clear view of the sky. Check for possible external interference to the GPS receivers. o Ensure that a cell phone or a device using cell phone technology is not turned on (even in a monitoring state) in the cabin. o Turn to the MFD AUX – GPS STATUS page on and check the GPS strength bars on both GPS receivers. If the signal strength levels are erratic, disappear and reappear rapidly, or switch between a solid and hollow bar frequently there is an external device interfering with the GPS receivers. Turn off any devices that radiate a signal in the local area or move the aircraft to another location to remove the interference. o Verify the aircraft is not parked in close proximity to a hanger with the doors open and equipped with a GPS repeater. Verify the GIA‟s are online by checking for a green checkmark next to the GIA on the MFD Aux – System Status page. If a GIA is not online (a Red-X will be present instead of a green check mark), check for power input faults. Refer to the GIAS GPS Troubleshooting Section for additional actions. XPDR FAIL GTX 33 Check PFD Alert Window for GIA1/2 and GTX 33 configuration, software or failed data path error messages. Correct any errors before proceeding. Perform a SET>ACTV configuration reset on the GTX Transponder Configuration page for each installed GTX. For GTX 33 transponders verify the aircraft registration is entered in the GTX Transponder Configuration page. Check the GIA and GTX racks for connector pin faults (push-back or bent) on the RS-232 interconnect lines. Replace the GTX 33. Page 2-4 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 Annunciation Associated LRU Solution TAS, AIRSPEED FAIL, ALTITUDE FAIL, VERT SPEED FAIL GDC 74A Check PFD Alert Window for PFD, MFD or GDC configuration, software or failed data path error messages. Correct any errors before proceeding. Verify the GDC‟s are online by checking for a green checkmark next to the GDC on the MFD Aux – System Status page. o If the GDC is not online (a Red-X will be present instead of a green check mark), check for wiring/power faults and GDC connector security. o Replace the GDC 74A. Inspect GDC 74A pitot/static ports and plumbing for blockage. Replace the GDC 74A configuration module. For TAS failure only, replace the GTP 59. OAT and TAS GTP 59 Check OAT probe wiring and connectors for faults or damage. Check GDC config module wiring for damage, replace if any is found. Replace GDC config module Replace GDC 74A with a known good unit: o If problem persists, replace the GTP 59. G1000 Nav III Line Maintenance Manual Page 2-5 190-00352-00 Rev. N Annunciation Associated LRU Solution ATTITUDE FAIL GRS 77 Ensure that a cell phone or a device using cell phone technology is not turned on (even in a monitoring state) in the cabin. Check PFD Alert Window for PFD, MFD or GRS configuration, software or failed data path error messages. Correct any errors before proceeding. For an attitude failure while parked, check the following: o Is the aircraft stationary if GPS is not available? Aircraft movement (rocking the wings or moving the tail) may cause the attitude and heading to fail if it believes the aircraft is in motion without GPS input. o Check if the GPS has acquired at least four satellites, has a 3D navigation solution, and a DOP of less than 5.0. Check for metal objects (tool boxes, power carts, nearby large steel structures, etc.) around the aircraft that could be interfering with the magnetometer. Cycle GRS 77 power to restart initialization. Check the GRS 77 connecter for security and that proper wire harness strain relief is provided. Check the GRS 77 is fastened down tightly in its mounting rack and that the mounting rack is not loose (CAUTION - do not loosen the mounting rack hardware to the airframe shelf or the aircraft will need to be re-leveled and the PITCH/ROLL OFFSET procedure performed). Perform an Engine Run-Up Test to check if engine vibration is causing the GRS 77 to go offline. Replace GRS 77. If problem persists replace the GRS 77 configuration module. Contact Garmin Aviation Product Support if condition continues after replacing the GRS 77 and config module for additional assistance. Page 2-6 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 Annunciation Associated LRU Solution HDG FAIL GRS 77 & GMU 44 Check PFD Alert Window for PFD, MFD or GRS configuration, software or failed data path error messages. Correct any errors before proceeding. Check for metal objects (tool boxes, power carts, nearby large steel structures, etc.) around the aircraft that could be interfering with the magnetometer. Ensure that a cell phone or a device using cell phone technology is not turned on (even in a monitoring state) in the cabin. Cycle power after moving aircraft away from metal objects to determine if metal objects were the source of the interference. Allow up to five minutes for the heading to reinitialize. Is the aircraft stationary if GPS is not available? Aircraft movement (rocking the wings or moving the tail) may cause the attitude and heading to fail if it believes the aircraft is in motion without GPS input. Perform a Magnetometer Interference Test to check for interference from onboard electrical system components (e.g. NAV lights). Pay particular attention to any new electrical devices that have been installed since the aircraft was new. Correct any discrepancies that do not allow this test to pass before continuing. Ensure GRS 77 and GMU 44 connectors are secure. Check the wiring and any inline connectors between the GRS and GMU for faults. Recalibrate the GMU 44. Replace the GMU 44. o If problem persists, replace the GRS 77. G1000 Nav III Line Maintenance Manual Page 2-7 190-00352-00 Rev. N Annunciation Associated LRU Solution Engine/Airframe Sensors GEA 71 Check PFD Alert Window for GIA1/2 or GEA configuration, software or failed data path error messages. Correct any errors before proceeding. On the PFD in Configuration Mode, turn to the GE STATUS page and verify that the GEA internal power supply, configuration, and calibration status boxes are green. o If the internal power supply box is red, check for shorted engine/airframe sensors that receive 5V, 10V or 12V power from the GEA (tach sensor, MAP sensor, Fuel Flow sensor, oil pressure sensor and pitot heat sensor). o The configuration and calibration boxes should be green. If the calibration status boxes are red, replace the GEA 71. Verify the internal, external, and reference voltages listed in the Main Analog and I/O A Analog boxes are not dashed out (does not include Aircraft Power 1 and 2). If any voltages are dashed out, replace the GEA. Check the MFD AUX – SYSTEM STATUS page if the GEA is online (green checkmark on the AUX – SYSTEM STATUS page is present). If GEA is not online (Red-X is present), verify the unit is receiving power at the GEA rack connector. Replace the GEA 71. If problem persists, check the GIA/GEA interconnect wiring and unit connector pins for faults. o For only REX-X of the EGT, TIT and CHT temperature readings, replace the GEA configuration module and thermocouple located in the back shell of the GEA connector. Page 2-8 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 2.1.2 Messages & Annunciations Figure 2-2. Alerts & Annunciations In normal mode, the G1000 system presents a variety of system messages and/or annunciations to the operator and technician. System messages are normally presented on the PFD and can be viewed by pressing the ALERTS softkey. This section provides a listing of possible messages, alerts, and annunciations. Aircraft specific alerts are not covered in this manual. 2.1.3 System Status Page (MFD Normal Mode) Figure 2-3. System Status Page (AUX Group) The AUX – SYSTEM STATUS page on the MFD provides LRU health status when in normal mode. Another method of troubleshooting is to have both displays in config mode on the very first System Status Page. Press the cursor on PFD and scroll down to highlight PFD1, press the cursor on the MFD and scroll down to MFD1. Now you can compare software on each display and it will even show Jeppesen NAV data cycle on the PFD. G1000 Nav III Line Maintenance Manual Page 2-9 190-00352-00 Rev. N 2.1.4 AFCS System Troubleshooting The information in this section specifically relates to the GFC 700. Should a problem be encountered during the operation of the GFC 700, the pilot and technician should first evaluate the overall status and condition of the G1000 system on the AUX – System Status page (on the MFD). Any alert messages, annunciations, or other abnormal behaviors should be noted in an effort to pinpoint the fault. More detailed system troubleshooting for a red AFCS or red PFT annunciator is contained in Section 2. 2.1.4.1 Annunciations and Alerts The GFC 700 AFCS Annunciation field is located above the airspeed tape on the PFD as shown in Figure 2-4. Figure 2-4. AFCS Annunciation Field Page 2-10 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 The following annunciations may appear in the AFCS Annunciation field: Annunciation Condition Solutions AFCS System Failure Ensure that the G1000 system is in proper working order. Check specifically for proper operation of the: GIA 63W Integrated Avionics Unit GRS 77 AHRS GDC 74A Air Data Computer All GSA 81 Servos Check that no red X‟s are present on the MFD and PFDs. Check that there are no Alert messages present in the PFD Alert window. Correct any software or configuration errors noted. Go to the AUX SYSTEM STATUS page on the MFD and verify that all LRUs have a „green‟ check. If the OAT and TAS is Red-X‟d and the attitude indication is present, replace the GDC74 config module. o If the condition is still present, replace the config module wiring harness. See Section 2 for further troubleshooting. Pitch Axis Failure Check the AUX – SYSTEM STATUS page to see if the servo is online (green check). Check that the affected servo is receiving power. Check the servo wiring and connector. Ensure PTRM switches are not stuck. If failure condition still exists, remove and replace the affected servo. Pitch Trim Axis Failure Roll Axis Failure Elevator Mistrim Down Verify that the servo is online at the AUX – SYSTEM STATUS page. Ensure the servo is receiving power. If Mistrim condition still exists, remove and replace the affected servo. Elevator Mis- Trim Up Aileron Mistrim Right Check for possible fuel imbalance. Check aileron control rigging. Aileron Mistrim Left Pre-Flight Test Reset system power. Allow the system to complete pre-flight tests. The preflight test should finish within 2 minutes. If it does not pass, the red „PFT‟ annunciation is shown. In case of PFT failure, troubleshoot in the same manner as for the red „AFCS‟ annunciation. G1000 Nav III Line Maintenance Manual Page 2-11 190-00352-00 Rev. N 2.1.5 Failed Path Messages (GDU Software Version 7.01 and later only) The following message indicates there is a data path connected to the GDU (MFD or PFD) or the GIA 63/GIA 63W (1 or 2) that has failed FAILED PATH – A data path has failed. Check configuration mode. The FAILED PATH message is triggered by a timeout of any one digital channel. The channels that are checked are listed on these pages in config mode: 1. GDU RS-232 / ARINC 429 CONFIG (PFD1, and MFD) 2. GIA RS-232 / ARINC 429 CONFIG (GIA1 and GIA2) 3. GIA CAN / RS-485 CONFIGURATION (GIA1 and GIA2) Important: Once the FAILED PATH message has been triggered, it will remain on the list of messages until the next power cycle. This latching was implemented so that for intermittent failures, the message would remain at the end of the flight (to alert maintenance crew). In addition, this keeps the crew from having to acknowledge message repeatedly in the case of intermittent failures. NOTE For GDU software version prior to 7.01, the data path boxes may not be present on the GDU and GIA config pages. Troubleshooting failed path messages will require manually checking the data lines using a continuity tester and may require swapping GDU‟s, GIA‟s or other units to determine if the fault lies in the unit or wiring. Garmin recommends following the troubleshooting instructions for the red data boxes below to help find the cause of the fault. The box next to each channel indicates the current status of the channel according to the following: Red = data path is known to be failed Black = data path status is unknown Green = data path is known to be good The applicable data paths can be verified by viewing the configuration mode pages listed in 2.1.5.2. Page 2-12 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 2.1.5.1 System Datapath Page (for GDU 8.20 and higher software) There is a SYSTEM DATA PATHS page (Figure 2-5) starting with NAV III BP2008, GDU Version 563.08. This page can be viewed with the G1000 system in configuration mode. Enable the cursor when you see the SYSTEM STATUS page on the PFD and turn the small knob until the SYSTEM DATA PATH is displayed. You can view all of the data path information for all of the LRU‟s on one page (Figure 2-5). Figure 2-5. System Data Paths Page (Configuration Mode) You can select what type of data; ARINC 429, CAN, Ethernet high speed data bus (HSDB) , RS-232 or RS-485 by selecting the appropriate softkey at the bottom of the screen (Figure 2-6). If you see a red box, refer to the LRU page group that has the failed data path. Figure 2-6. Softkey Selection of Data Types Check each of the Bus Types on the SYSTEM DATA PATHS screen by pressing the respective softkeys. For an example see Figure 2-7. Figure 2-7 shows two red marks when the CAN bus is selected. These indications show that the CHNL 2 path for GIA1 and GIA2 is not working. G1000 Nav III Line Maintenance Manual Page 2-13 190-00352-00 Rev. N Figure 2-7. CHNL 2 path for GIA1 and GIA2 not working After the failed paths for the GIA on the SYSTEM DATA PATH page are observed, turn the large FMS knob to navigate to the GIA page group. The RS-232/ARINC 429 CONFIG comes up as page one on the GIA Page group (Figure 2-8). Once the GIA page group is selected, use the small FMS knob to navigate to the CAN CONFIGURATION page. Figure 2-8. RS-232/ARINC 429 Config Page First select the desired GIA to check by enabling the cursor (press the FMS knob). Turn the small FMS knob to bring up the drop down menu. Turn the large FMS knob to select GIA1 or GIA2 and press the enter key (see the following figure). Page 2-14 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 Once the red box on GIA1 CHNL 2 path on the SYSTEM DATA PATH page is displayed, turn the large FMS knob to the SELECT CHANNEL box (see the following figure). Turn the small FMS knob to display the pull down menu, and select CHNL 2. Repeat this process to investigate any other failed paths, which are displayed. Once a loss of CAN bus communication from GIA2 to the VIBRO-METER FUEL PROBES is verified (see the following figure), use the Cessna wiring diagrams as well as Appendix A of this Maintenance Manual to determine the connector and pin numbers for wiring checks. G1000 Nav III Line Maintenance Manual Page 2-15 190-00352-00 Rev. N Note that there will be a red box on the HSDB page if you have an aircraft that does not have a GDL69A installed (see the following figure). Page 2-16 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 2.1.5.2 PFD RS-232 / ARINC 429 Config Page PFD1 ARINC 429 Channel LRU Indicator Status IN 1 GRS 77 #1 PFD1/GRS 77 data path is functioning correctly PFD1/GRS 77 data path is not functioning correctly. Check PFD Alert Window for PFD or GRS77 configuration or software error messages. Correct any errors before proceeding. Verify GRS77 status is OK using the AUX – SYSTEM STATUS PAGE on the MFD. If it is has a Red-X, troubleshoot why the GRS is offline before proceeding. Ensure GRS77 connecter is secure and proper wire harness strain relief is provided. Swap PFD and MFD to confirm if the problem is in the PFD. o Replace original PFD if box turns green after swapping displays. Check the PFD1/GRS 77 interconnect wiring and unit connector pins for faults. o Replace GRS 77. PFD1/GRS 77 data path functionality is unknown. Reload PFD configuration file. IN 2 GDC 74 #1 PFD1/GDC 74 data path is functioning correctly PFD1/GDC 74A data path is not functioning correctly. Check PFD Alert Window for PFD or GDC74 configuration or software error messages. Correct any errors before proceeding. Verify GDC 74 status is OK using the System Status Page on the MFD. If it has a Red-X, troubleshoot why the GDC is offline before proceeding. Swap PFD and MFD to confirm if the problem is in the original PFD. o Replace original PFD if box turns green after swapping displays. Check the PFD/GDC 74 interconnect wiring and unit connector pins for faults. o Replace GDC 74 if problem remains. PFD1/GDC 74 data path functionality is unknown. Reload PFD configuration file. G1000 Nav III Line Maintenance Manual Page 2-17 190-00352-00 Rev. N MFD1 ARINC 429 Config Channel LRU Indicator Status IN 1 GRS 77 #1 PFD1/GRS 77 data path is functioning correctly PFD1/GRS 77 data path is not functioning correctly. Check PFD Alert Window for PFD or GRS77 configuration or software error messages. Correct any errors before proceeding. Verify GRS77 status is OK using the AUX – SYSTEM STATUS PAGE on the MFD. If it is has a Red-X, troubleshoot why the GRS is offline before proceeding. Ensure GRS77 connecter is secure and proper wire harness strain relief is provided. Swap PFD and MFD to confirm if the problem is in the PFD. o Replace original PFD if box turns green after swapping displays. Check the PFD1/GRS 77 interconnect wiring and unit connector pins for faults. o Replace GRS 77. PFD1/GRS 77 data path functionality is unknown. Reload PFD configuration file. IN 2 GDC 74 #1 PFD1/GDC 74 data path is functioning correctly PFD1/GDC 74A data path is not functioning correctly. Check PFD Alert Window for PFD or GDC74 configuration or software error messages. Correct any errors before proceeding. Verify GDC 74 status is OK using the System Status Page on the MFD. If it has a Red-X, troubleshoot why the GDC is offline before proceeding. Swap PFD and MFD to confirm if the problem is in the original PFD. o Replace original PFD if box turns green after swapping displays. Check the PFD/GDC 74 interconnect wiring and unit connector pins for faults. o Replace GDC 74 if problem remains. PFD1/GDC 74 data path functionality is unknown. Reload PFD configuration file. Page 2-18 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 2.1.5.3 GIA RS-232 / ARINC 429 Config Page GIA1 RS-232 Channel LRU Indicator Status CHNL 1 GDC 74 #1 GIA1/GDC 74A #1 data path is functioning correctly GIA1/GDC 74A data path is not functioning correctly. Check PFD Alert Window for GIA or GDC configuration or software error messages. Correct any errors before proceeding. Verify GDC 74 status is OK using the AUX – SYSTEM STATUS page on the MFD. If it has a Red-X, troubleshoot why the GDC is offline before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA1. o Replace original GIA1 if box turns green after swapping units. Check the GIA1/GDC 74 interconnect wiring and unit connector pins for faults. o Replace GDC 74 if problem remains. GIA1/GDC 74 data path functionality is unknown. Reload GIA1 configuration file. CHNL 5 GTX 33 #1 w/TIS GIA1/GTX 33 data path is functioning correctly GIA1/GTX 33 data path is not functioning correctly. Check PFD1 Alert Window for GIA or GTX configuration or software error messages. Correct any errors before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA1. o Replace original GIA1 if box turns green after swapping units. Check the GIA1/GTX 33 interconnect wiring and connector pins for faults. o Replace GTX 33 if problem remains. GIA1/GTX 33 data path functionality is unknown. Reload GIA1 configuration file. CHNL 6 GRS 77 #1 GIA1/GRS 77 data path is functioning correctly GIA1/GRS 77 data path is not functioning correctly. Check PFD Alert Window for GIA or GRS configuration or software error messages. Correct any errors before proceeding. Verify GRS77 status is OK using the AUX - SYSTEM STATUS PAGE on the MFD. If it has a Red-X, troubleshoot why the GRS is offline before proceeding. Ensure GRS77 connecter is secure and proper wire harness strain relief is provided. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA1. o Replace original GIA1 if box turns green after swapping units. Check the GIA1/GRS 77 interconnect wiring and unit connector pins for faults. o Replace GRS 77. G1000 Nav III Line Maintenance Manual Page 2-19 190-00352-00 Rev. N Channel LRU Indicator Status GIA1/GRS 77 data path functionality is unknown. Reload GIA1 configuration file. CHNL 7 GMA 1347 #1 GIA1/GMA 1347 data path is functioning correctly GIA1/GMA 1347 data path is not functioning correctly. Check PFD Alert Window for GIA or GMA configuration or software error messages. Correct any errors before proceeding. Verify GMA 1347 status is OK using the AUX - SYSTEM STATUS PAGE on the MFD. If it has a Red-X, troubleshoot why the GRS is offline before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA1. o Replace original GIA1 if box turns green after swapping units. Check the GIA1/GMA 1347 interconnect wiring and unit connector pins for faults. o Replace GMA 1347. GIA1/GMA 1347 data path functionality is unknown. Reload GIA1 configuration file. Page 2-20 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 GIA1 ARINC 429 Channel LRU Indicator Status IN 5 GDC 74 #1 GIA1/GDC 74A data path is functioning correctly. GIA1/GDC 74A data path is not functioning correctly. Check PFD Alert Window for GIA or GDC configuration or software error messages. Correct any errors before proceeding. Verify GDC 74A status is OK using the AUX – SYSTEM STATUS page on the MFD. If it has a Red-X, troubleshoot why the GDC is offline before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA1. o Replace original GIA1 if box turns green after swapping units. Check the GIA1/GDC 74A interconnect wiring and unit connector pins for faults. o Replace GDC 74A. GIA1/GDC 74A data path functionality is unknown. Reload GIA1 configuration file. IN 6 GRS 77 #1 GIA1/GRS 77 data path is functioning correctly. GIA1/GRS 77 data path is not functioning correctly. Check PFD Alert Window for GIA or GRS configuration or software error messages. Correct any errors before proceeding. Verify GRS77 status is OK using the AUX - SYSTEM STATUS PAGE on the MFD. If it has a Red-X, troubleshoot why the GRS is offline before proceeding. Ensure GRS77 connecter is secure and proper wire harness strain relief is provided. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA1. o Replace original GIA1 if box turns green after swapping units. Check the GIA1/GRS 77 interconnect wiring and unit connector pins for faults. o Replace GRS 77. GIA1/GRS 77 data path functionality is unknown. Reload GIA1 configuration file. G1000 Nav III Line Maintenance Manual Page 2-21 190-00352-00 Rev. N GIA2 RS-232 Channel LRU Indicator Status CHNL 3 WX-500 GIA2/WX-500 data path is functioning correctly. GIA2/WX 500 data path is not functioning correctly. Check PFD Alert Window for GIA configuration or software error messages. Correct any errors before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA5. o Replace original GIA2 if box turns green after swapping units. Check the GIA2/WX500 interconnect wiring and connector pins for faults. o Troubleshoot WX500 per Manufacturer‟s instructions if problem remains. GIA2/WX-500 data path functionality is unknown. Reload GIA2 configuration file. CHNL 4 CO GUARDIAN GIA2/CO GUARDIAN data path is functioning correctly. GIA2/CO GUARDIAN data path is not functioning correctly Reconfigure CO GUARDIAN Option Check the GIA2/CO GUARDIAN interconnect for wiring faults. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA5. o Replace original GIA2 if box turns green after swapping units. o Replace CO GAURDIAN if problem persists. GIA2/ CO GUARDIAN data path functionality is unknown. Reload GIA2 configuration file. CHNL 5 GTX 33 #1 w/TIS GIA2/GTX 33 data path is functioning correctly. Page 2-22 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 GIA2/GTX 33 data path is not functioning correctly. Check PFD Alert Window for GIA or GTX configuration or software error messages. Correct any errors before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA5. o Replace original GIA2 if box turns green after swapping units. Check the GIA2/GTX 33 interconnect wiring and connector pins for faults. o Replace GTX 33. GIA2/GTX 33 #1 data path functionality is unknown. Reload GIA2 configuration file. CHNL 7 GMA 1347 #1 GIA2/GMA 1347 #1 data path is functioning correctly. GIA1/GMA 1347 data path is not functioning correctly. Check PFD Alert Window for GIA or GMA configuration or software error messages. Correct any errors before proceeding. Verify GMA 1347 status is OK using the AUX - SYSTEM STATUS PAGE on the MFD. If it has a Red-X, troubleshoot why the GMA is offline before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA5. o Replace original GIA2 if box turns green after swapping units. Check the GIA2/GMA 1347 interconnect wiring and connector pins for faults. o Replace GMA 1347 GIA1/GMA 1347 data path functionality is unknown. Reload GIA2 configuration file. G1000 Nav III Line Maintenance Manual Page 2-23 190-00352-00 Rev. N GIA2 ARINC 429 Channel LRU Indicator Status IN 5 GDC 74 #1 GIA2/GDC 74 data path is functioning correctly. GIA2/GDC 74A #1 data path is not functioning correctly. Check PFD Alert Window for GIA or GDC configuration or software error messages. Correct any errors before proceeding. Verify GDC 74A #1 status is OK using the AUX – SYSTEM STATUS page on the MFD. If it has a Red-X, troubleshoot why the GDC is offline before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA5. o Replace original GIA2 if box turns green after swapping units. Check the GIA2/GDC 74A #1 interconnect wiring and unit connector pins for faults. o Replace GDC 74A #1. GIA2/GDC 74 #1 data path functionality is unknown. Reload GIA2 configuration file. IN 6 GRS 77 #1 GIA2/GRS 77 data path is functioning correctly. GIA2/GRS 77 data path is not functioning correctly. Check PFD Alert Window for GIA or GRS configuration or software error messages. Correct any errors before proceeding. Verify GRS77 status is OK using the AUX - SYSTEM STATUS PAGE on the MFD. If it has a Red-X, troubleshoot why the GRS is offline before proceeding. Ensure GRS77 #1 connecter is secure and proper wire harness strain relief is provided. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA5. o Replace original GIA2 if box turns green after swapping units. Check the GIA2/GRS 77 interconnect wiring and unit connector pins for faults. o Replace GRS 77. GIA2/GRS 77 data path functionality is unknown. Reload GIA2 configuration file. Page 2-24 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 2.1.5.4 GIA CAN / RS-485 Config Page GIA1 RS-485 Channel LRU Indicator Status CHNL 1 GEA1 GIA1/GEA data path is functioning correctly. GIA1/GEA1 data path is not functioning correctly. Check PFD Alert Window for GIA or GEA configuration or software error messages. Correct any errors before proceeding. Verify GEA status is OK using the AUX - SYSTEM STATUS PAGE on the MFD. If it has a Red-X, troubleshoot why the GEA is offline before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA1. o Replace original GIA1 if box turns green after swapping units. Check the GIA1/GEA1 interconnect wiring and connector pins for faults. o Replace GEA71. GIA1/GEA data path functionality is unknown. Reload GIA1 configuration file. CHNL 4 GFC 700 GIA1/GFC 700 data path is functioning correctly. GIA1/GFC 700 data path is not functioning correctly. Check PFD Alert Window for GIA, GFC GTA or GSA configuration or software error messages. Correct any errors before proceeding. Verify all GSA/GTA servo statuses are OK using the AUX - SYSTEM STATUS PAGE on the MFD. If one or all have a Red-X, troubleshoot why the servos are offline before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA1. o Replace original GIA1 if box turns green after swapping units. Check the GIA1/GSA/GTA interconnect wiring and connector pins for faults. o Proceed to the Autopilot Troubleshooting section for further assistance. GIA1/GFC 700 data path functionality is unknown. Reload GFC 700 Installation configuration files (if equipped). G1000 Nav III Line Maintenance Manual Page 2-25 190-00352-00 Rev. N GIA2 RS-485 Channel LRU Indicator Status CHNL 1 GEA1 GIA2/GEA data path is functioning correctly. GIA2/GEA1 data path is not functioning correctly. Check PFD Alert Window for GIA or GEA configuration or software error messages. Correct any errors before proceeding. Verify GEA status is OK using the AUX - SYSTEM STATUS PAGE on the MFD. If it has a Red-X, troubleshoot why the GEA is offline before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA5. o Replace original GIA2 if box turns green after swapping units. Check the GIA2/GEA1 interconnect wiring and connector pins for faults. o Replace GEA71. GIA2/GEA data path functionality is unknown. Reload GIA2 configuration file. CHNL 4 GFC 700 GIA2/GFC 700 data path is functioning correctly. GIA2/GFC 700 data path is not functioning correctly. Check PFD Alert Window for GIA, GFC GTA or GSA configuration or software error messages. Correct any errors before proceeding. Verify all GSA/GTA servo statuses are OK using the AUX - SYSTEM STATUS PAGE on the MFD. If one or all have a Red-X, troubleshoot why the servos are offline before proceeding. Swap GIA1 and GIA2, reconfigure both GIA‟s to their new locations to confirm if the problem is in the original GIA5. o Replace original GIA2 if box turns green after swapping units. Check the GIA2/GSA/GTA interconnect wiring and connector pins for faults. o Proceed to the Autopilot Troubleshooting section for further assistance. GIA2/GFC 700 data path functionality is unknown. Reload GFC 700 Installation configuration files (if equipped). Page 2-26 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 2.2 GDU 104X 2.2.1 Configuration Pages 2.2.1.1 RS-232/ARINC 429 CONFIG Page Figure 2-9. RS-232/ARINC 429 CONFIG Page Main ARINC 429 and RS-232 communications channels for the MFD and PFD(s) are shown at this page. All settings are pre-established for a particular installation and are loaded from the G1000 Loader Card and should not be changed. The „MFD 1‟ and „PFD 1‟ configuration files contain the settings shown at this page. If the ACTIVE column does not match the SET column, reload PFD/MFD configuration files from the loader card. SELECT UNIT This window shows the currently selected GDU display. RS-232 This window shows active RS-232 configuration settings for currently selected display. ARINC 429 This window shows active ARINC 429 configuration settings for currently selected display. G1000 Nav III Line Maintenance Manual Page 2-27 190-00352-00 Rev. N 2.2.1.2 GDU STATUS Page Figure 2-10. GDU STATUS Page This page shows various items related to the GDU 104X display and its operation. The technician can use this page to aid in the diagnosis and troubleshooting of the GDU 104X. All settings are pre-established for a particular installation and are loaded from the appropriate G1000 Loader Card and should not be changed. STATUS RAM: Indicates condition of GDU 104X RAM memory. If it does not pass the unit may not initialize. XILINX: Indicates condition of GDU 104X XILINX processor. If it does not pass the unit may not initialize. BASE MAP: Indicates condition of stored basemap in the GDU 104X. A green box indicates the basemap has been installed. If the box is black, the basemap will need to be loaded. Contact Garmin for assistance. ETHERNET 1, 2, 3: Indicates status of the GDU 104Xs Ethernet channel. A green box indicates the ETHERNET loopback tests passed. A red or black box indicates it may not be used or a wiring fault is present. RS-232 1, 2: Indicates status of the GDU 104X‟s RS-232 channel. A green box indicates the RS-232 loopback tests passed. A red or black box indicates it may not be used or a wiring fault is present. IRDA: Indicates status of GDU 104X IrDA infrared port. Used for Garmin testing, it is not activated at this time ETHERNET 4: Indicates status of GDU 104Xs Ethernet channel 4. Used for Garmin testing, it is not activated at this time ANALOG PHOTOCELL A, B: Shows the input value of display photocells, between 0 and 9999. The values can be converted to a percentage by adding a decimal place two digits over from the right (Example: 8035 = 80.35%). If there is a significant split (~30% to 50%) you can expect the display to appear different from the other display in the aircraft, IF both of their lighting curves are set to the same values. Replace the display if one photocell reading is significantly different from the other. BEZEL THERM: Shows the temperature of the GDU bezel, expressed in degrees Celsius. (Example: 2064 = 20.64 degrees Celsius) Page 2-28 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 CCFT CRNT 1, 2: Shows an indication of current flowing through the display backlight bulbs. Number does not reflect actual current value and is not useful for troubleshooting. LGHT BUS AC: Shows the input value of the AC lighting bus, if enabled. Disregard number if it is not used in the installation. LGHT BUS DC: Shows the input value of the DC lighting bus, if enabled. Disregard number if not used in the installation. POWER (1.3V, 2.5V, 3.3V, 28 V 1/2): Shows power input voltages of various internal components. Should be within 10% of the desired voltage. (Example: for 2.5V field, 2500 = 2.500 Vdc; for 28V Field, 3633 = 36.33 Vdc). Replace the display if these values are more than 10% from the desired voltage. INTRNL TEMP 1, 2: Shows the internal temperature sensor values of the display, in degrees Celsius. (Example: 45267 = 45.267°C) DISCRETE SYS ID 1, 2, 3: Shows the current system ID assigned to the display. Green indicates that the System ID pin is strapped to ground. Black indicates that the System ID pin is left „open‟ and not strapped to ground. PFD #2 is not used in SEP aircraft. GDU System ID 1 GDU System ID 2 GDU System ID 3 Display Mode Black Black Green MFD Black Black Black PFD #1 Green Black Black PFD #2 RVRSNRY MODE 1, 2: Shows the current status of the reversionary modes. Reversionary Mode 1 is activated by the GMA 1347 reversion button. Reversionary Mode 2 is activated by a second GMA 1347, if installed. Reversionary 1 input is a ground on Pin 58, reversionary 2 input is a ground on Pin 15. SPARE INPUT: A green box indicates Pin 14 is grounded. This input should have a black box, if it is green check for connector miswiring or a bent pin. TEST/DEMO MODE SLCT: A green box indicates Pin 53/54 is grounded. These inputs should have a black box, if either box is green check for connector miswiring or a bent pin. PULSE PER SEC 1, 2: Shows status of GPS time synchronization inputs (from GIA) to the GDU. Used for Garmin testing, not useful for troubleshooting. DISCRETE IN CONFIGURATION The Discrete In field shows the current configuration of discrete inputs into the display. These settings are loaded with the G1000 Loader Card and must not be changed. The input box is green if it is receiving the input, black if no input is expected, or red for a missing input. If the active column does not match the set column, load PFD/MFD configuration files. All settings are pre- established for a particular installation and are loaded from the appropriate G1000 Loader Card and should not be changed. G1000 Nav III Line Maintenance Manual Page 2-29 190-00352-00 Rev. N 2.2.1.3 GDU TEST Page Figure 2-11. GDU TEST Page The GDU test page depicts a graphical layout of all buttons on the display in red. Each red graphical button turns green when the corresponding button is pressed, indicating that the button operates correctly. All settings are pre-established for a particular installation and are loaded from the appropriate G1000 Loader Card and should not be changed. The GDU test page also provides the following information regarding the display and associated systems: DISPLAY DUTY PWM 1: Shows the display brightness duty pulse width modulation. Value range is between 0 and 9999 and corresponds to the display brightness value shown. Not useful for troubleshooting. CRNT PWM: Shows percentage of current pulse-width-modulation to backlight bulbs. Value is between 0 and 10,000, showing the percentage of the maximum allowable current to the backlight. Not useful for troubleshooting. TOGGLE PWM TO MANL?: Allows the technician to manually adjust the display brightness. TOGGLE CCFT OFF?: Allows the technician to turn off the backlight current controller. KEY KEY PWM: Shows the keypad pulse width modulation brightness value. Range is between 0 and 9999 and corresponds to the keypad brightness value shown. Not useful for troubleshooting. TOGGLE KEY BKLT OFF?: Allows the technician to toggle the keyboard backlight off. REINIT PAGE INFO?: Allows technician to re-initialize all information on the test page. Page 2-30 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 ADC PHOTOCELL A, B: Shows the input value of display photocells, between 0 and 9999. The values can be converted to a percentage by adding a decimal place two digits over from the right (Example: 8035 = 80.35%). If there is a significant split (~30% to 50%) you can expect the display to appear different from the other display in the aircraft, IF both of their lighting curves are set to the same values. Replace the display if one photocell reading is significantly different from the other. BEZEL THERM: Shows the temperature of the GDU bezel, expressed in degrees Celsius. CCFT CRNT 1, 2: Shows an indication of current flowing through the display backlight bulbs. Number does not reflect actual current value and is not useful for troubleshooting. POWER (2.5V, 3.3V, 28 V 1, 2; 1.3V): Shows power input voltages of various internal components. (Example: for 2.5V field, 2500 = 2.500 Vdc; for 28V Field, 3633 = 36.33 Vdc) They need to be within 10% of desired voltages. Replace the display if these values are more than 10% from the desired voltage. LGHT BUS DC, AC: Shows input value of AC and DC lighting bus inputs, depending on which is configured. Disregard number if not used in the installation. INTRNL TEMP 1, 2: Shows the internal temperature of the GDU, expressed in degrees Celsius. TEST IIC EEPROM: Shows the condition of the GDU configuration module EEPROM chip, located in the backshell connector. It should be green for the PFD and red for the MFD. If it is red on the PFD, check configuration module wiring and pins for damage before replacing the configuration module. DATACARD CHKSUM 1, 2: Requires the use of a special data card. Tests the data card reader interface function. Used for Garmin testing, not useful for troubleshooting. NAND, NOR FLASH, SDRAM: Shows the condition of various GDU internal components. A429 LOOP 1, 2: Indicated the status of the GDU 104Xs ARINC 429 channels. A green box indicates the ARINC 429 loopback tests passed. A red or black box indicated it may not be used or a wiring fault is present. ETHERNET 1, 2, 3: Indicates status of the GDU 104Xs Ethernet channel. A green box indicates the ETHERNET loopback tests passed. A red or black box indicates it may not be used or a wiring fault is present. RS-232 1, 2: Indicates status of the GDU 104X‟s RS-232 channel. A green box indicates the RS-232 loopback tests passed. A red or black box indicates it may not be used or a wiring fault is present. IRDA: Indicates status of GDU 104X IrDA infrared port. Used for Garmin testing, it is not activated at this time. BKUP CAPS: Indicates status of the Backup Capacitor Test. A green box indicates the test passed, a red box indicates it failed. G1000 Nav III Line Maintenance Manual Page 2-31 190-00352-00 Rev. N DISCRETE RVRSNRY MODE 1, 2: Shows the current status of the reversionary modes. Reversionary Mode 1 is activated by the GMA 1347 reversion button. Reversionary Mode 2 is activated by a second GMA 1347, if installed. Reversionary 1 input is a ground on Pin 58, reversionary 2 input is a ground on Pin 15. PULSE PER SEC 1, 2: Shows status of GPS time synchronization inputs (from GIA 63/GIA 63W) to the GDU. Used for Garmin testing, not useful for troubleshooting. TEST, DEMO MODE SELECT: A green box indicates Pin 53/54 is grounded. These inputs should have a black box, if either box is green check for connector miswiring or a bent pin. FPGA: Shows the condition of the GDU FPGA processor. If it does not pass the unit may not initialize. SYS ID 1, 2, 3: Shows the current system ID assigned to the display. Green indicates that the System ID pin is strapped to ground. Black indicates that the System ID pin is left „open‟ and not strapped to ground. (See Table below) PFD #2 is not used in SEP aircraft. GDU System ID 1 GDU System ID 2 GDU System ID 3 Display Mode Black Black Green MFD Black Black Black PFD #1 Green Black Black PFD #2 REMOTE OFF: Allows the display to control power of a remote system. Not used in any installation at this time. Page 2-32 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 2.2.1.4 DIAGNOSTICS Page Figure 2-12. DIAGNOSTICS Page The DIAGNOSTICS Page is a “display only” page and cannot be altered. G1000 Nav III Line Maintenance Manual Page 2-33 190-00352-00 Rev. N 2.2.1.5 SERIAL/ETHERNET I/O Page Figure 2-13. SERIAL/ETHERNET I/O Page The SERIAL/ETHERNET I/O Page displays Ethernet communication statistics. If Ethernet communication issues are suspected, this pages displays errors being logged as they occur. A couple of errors are generally not cause for unit rejection. If there are a substantial, growing number of errors logged, it indicates an Ethernet communication issue. Use the FMS knob to check all three Ethernet ports. Generally you should see a continually increasing number in the RCV GOOD FRAMES and XMT GOOD FRAMES to show Ethernet communications are ok. This page is protected and cannot be changed. If the number of errors are continually increasing, check Ethernet wiring between GDU‟s and GIA‟s for any disconnects. If none are found, troubleshoot which LRU (PFD, MFD, GIA 1, GIA2, or GDL) is causing the problem. Page 2-34 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 2.2.1.6 ALERT CONFIGURATION Page Figure 2-14. ALERT CONFIGURATION Page The ALERT CONFIGURATION Page displays all available alerts and what triggers them. This page is protected and cannot be altered. 2.2.1.7 AIRFRAME CONFIGURATION Page Figure 2-15. AIRFRAME CONFIGURATION Page The AIRFRAME CONFIGURATION Page displays the airframe configuration parameters for instruments, airspeed bugs, and other items. This page is protected and cannot be altered. G1000 Nav III Line Maintenance Manual Page 2-35 190-00352-00 Rev. N 2.2.2 Common Problems Symptom Recommended Action Display will not track photocell Go to the GDU test page in configuration mode. Cover and uncover the photocells and verify that PHOTOCELL A or PHOTOCELL B value changes. If the value does not change, replace the display. Reload the GDU config files. Keyboard will not track Dimmer Bus Display will not track Dimmer Bus Reload the GDU config files. Swap PFD or MFD to see if problem remains with display. Replace display if condition remains with the same unit. If unit remains in original position after swapping displays, check GDU dimmer input to verify voltage is present. Keyboard will not track Dimmer Bus Display is blank Ensure that a cell phone or a device using cell phone technology is not turned on (even in a monitoring state) in the cabin. Cycle power. o If GDU recovers, observe display for yellow text containing error information at the top of the screen. If message indicates software need to be re-loaded, then re- load software. Otherwise, replace the GDU. Use a bright light to verify LCD is active. o Adjust avionics dimmer control full clockwise. o Manually turn up backlight on the PFD and load configuration files to the PFD and MFD. Ensure slide lock is fully engaged with the locking tabs on the back of the unit. o If slide lock is not fully engaged, remove connector and verify the locking tabs on the GDU are perpendicular to the connector. If necessary, straighten them before reseating connector. Ensure GDU is receiving power. If a circuit breaker is tripped, determine source of short before resetting breaker. Ensure circuit breakers have not failed and power wire connections are secure. Switch MFD and PFD. o If problem follows unit, replace the display. Please note the position it failed in (PFD or MFD). o If problem does not follow unit, troubleshoot aircraft wiring for fault. Display resets Display flickers Page 2-36 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 SD card is stuck in GDU DO NOT insert the screwdriver any length into the card slot. DO NOT pry against the overlay. DO NOT force the SD Card out. Insert a small screwdriver in the groove on the side of the exposed end of the card to pull out the card. Push the card in further to release the card locking mechanism. Check SD Card for having more than one label. Two or more labels on the card will cause sticking. o Remove all but one label. Ensure the SD card is from Toshiba or SanDisk. Use of other SD Cards is not recommended. If card was inserted with the label facing to the right, do not attempt to remove. Return the unit to Garmin for repair Engine instruments are missing on the MFD Clear user settings on each GDU by pressing and holding the CLR key while powering up each display. Leave the other display off while performing the clear operation. o If problem persists, replace GDU. Cannot navigate through pages on the MFD using the FMS knob A button/knob/joystick does not appear to function Go to the GDU TEST page in configuration mode and verify button, knob, or joystick operates correctly by observing a change in color from red to green in the button/knob/joystick icon when the button/knob/joystick is pressed. If a button is stuck, the button icon will be green without pressing the button as soon as you turn to the GDU TEST page. o If problem is verified, replace GDU. Terrain/Topo does not display Ensure supplemental data cards are inserted correctly in the lower slots of both GDU‟s. Allow the system to verify the data on the cards for approximately five minutes after power-up. o If the databases do not activate, reload the Terrain and Obstacle databases onto the SD Card or replace the card. Display will not track photocell Go to the GDU TEST page in configuration mode. Cover and uncover the photocell and verify the PHOTOCELL A or PHOTOCELL B value changes. o If problem persists, replace the display. Keyboard will not track photocell Display will not track dimmer bus Check display lighting settings on the Main Lighting page (system group page 3) Check presence or integrity of pin 59 (J10001) Check dimmer bus to verify voltage (refer to the airframe specific maintenance manual for troubleshooting). Switch MFD and PFD: o If problem follows unit, replace the display. Keyboard will not track dimmer bus Display delaminating Replace GDU, reference Garmin Service Bulletin 0527. G1000 Nav III Line Maintenance Manual Page 2-37 190-00352-00 Rev. N 2.2.3 Database and Software Alerts Message Cause Solutions MFD1 DB ERR – MFD1 aviation database error exists. The MFD has encountered an error in the Jeppesen database. Reload Jeppesen database Replace MFD1 Contact Garmin Technical Support for assistance. PFD1 DB ERR – PFD1 aviation database error exists. The PFD has encountered an error in the Jeppesen database. Reload Jeppesen database Replace the PFD Contact Garmin Technical Support for assistance. MFD1 DB ERR – MFD1 basemap database error exists. The MFD has encountered an error in the basemap database. Contact Garmin Technical Support for assistance. PFD1 DB ERR – PFD1 basemap database error exists. The PFD has encountered an error in the basemap database. MFD1 DB ERR – MFD1 terrain database error exists. The MFD has encountered an error in the terrain database. Confirm supplemental data card is inserted fully in the bottom slot of the display. Remove the supplemental data card from the bottom slot of the display and insert in the top slot. o If the problem is resolved, the bottom card slot is dirty or has failed. Try reinserting the card multiple times in the bottom slot to clean the card contacts. If the problem remains in the bottom slot, you may leave the card in the top slot (if the top slot if unused) or replace the display. Swap with a supplemental data card from another display in the same system. o If problem moves to the other display; you may either copy the file “bmap.bin” from the good card to the bad one or replace all the supplemental data cards as a set. If the basemap data files are corrupt on both cards, contact Garmin Product Support for a copy of the database. o If problem remains in the same GDU, replace that GDU. Page 2-38 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 Message Cause Solutions PFD1 DB ERR – PFD1 terrain database error exists. The PFD has encountered an error in the terrain database. Confirm supplemental data card is inserted fully in the bottom slot of the display. Remove the supplemental data card from the bottom slot of the display and insert in the top slot. o If the problem is resolved, the bottom card slot is dirty or has failed. Try reinserting the card multiple times in the bottom slot to clean the card contacts. If the problem remains in the bottom slot, you may leave the card in the top slot (if the top slot if unused) or replace the display. Swap with a supplemental data card from another display in the same system. o If problem moves to the other display; you may either copy the file “bmap.bin” from the good card to the bad one or replace all the supplemental data cards as a set. If the basemap data files are corrupt on both cards, contact Garmin Product Support for a copy of the database. o If problem remains in the same GDU, replace that GDU. G1000 Nav III Line Maintenance Manual Page 2-39 190-00352-00 Rev. N Message Cause Solutions MFD1 DB ERR – MFD1 obstacle database error exists. The MFD has encountered an error in the obstacle database. Confirm supplemental data card is inserted fully in the bottom slot of the display. Remove the supplemental data card from the bottom slot of the display and insert in the top slot. o If the problem is resolved, the bottom card slot is dirty or has failed. Try reinserting the card multiple times in the bottom slot to clean the card contacts. If the problem remains in the bottom slot, you may leave the card in the top slot (if the top slot if unused) or replace the display. Swap with a supplemental data card from another display in the same system. o If problem moves to the other display; you may either copy the file “bmap.bin” from the good card to the bad one or replace all the supplemental data cards as a set. If the basemap data files are corrupt on both cards, contact Garmin Product Support for a copy of the database. o If problem remains in the same GDU, replace that GDU. Page 2-40 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 Message Cause Solutions PFD1 DB ERR – PFD1 obstacle database error exists. The PFD has encountered an error in the obstacle database. Confirm supplemental data card is inserted fully in the bottom slot of the display. Remove the supplemental data card from the bottom slot of the display and insert in the top slot. o If the problem is resolved, the bottom card slot is dirty or has failed. Try reinserting the card multiple times in the bottom slot to clean the card contacts. If the problem remains in the bottom slot, you may leave the card in the top slot (if the top slot if unused) or replace the display. Swap with a supplemental data card from another display in the same system. o If problem moves to the other display; you may either copy the file “bmap.bin” from the good card to the bad one or replace all the supplemental data cards as a set. If the basemap data files are corrupt on both cards, contact Garmin Product Support for a copy of the database. o If problem remains in the same GDU, replace that GDU. G1000 Nav III Line Maintenance Manual Page 2-41 190-00352-00 Rev. N Message Cause Solutions MFD1 DB ERR – MFD1 airport terrain database error exists. The MFD has encountered an error in the terrain database. Confirm supplemental data card is inserted fully in the bottom slot of the display. Remove the supplemental data card from the bottom slot of the display and insert in the top slot. o If the problem is resolved, the bottom card slot is dirty or has failed. Try reinserting the card multiple times in the bottom slot to clean the card contacts. If the problem remains in the bottom slot, you may leave the card in the top slot (if the top slot if unused) or replace the display. Swap with a supplemental data card from another display in the same system. o If problem moves to the other display, reload the database or replace all the supplemental data cards as a set. o If problem remains in the same GDU, replace that GDU. Page 2-42 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 Message Cause Solutions PFD1 DB ERR – PFD1 airport terrain database error exists. The PFD has encountered an error in the terrain database. Confirm supplemental data card is inserted fully in the bottom slot of the display. Remove the supplemental data card from the bottom slot of the display and insert in the top slot. o If the problem is resolved, the bottom card slot is dirty or has failed. Try reinserting the card multiple times in the bottom slot to clean the card contacts. If the problem remains in the bottom slot, you may leave the card in the top slot (if the top slot if unused) or replace the display. Swap with a supplemental data card from another display in the same system. o If problem moves to the other display, reload the database or replace all the supplemental data cards as a set. o If problem remains in the same GDU, replace that GDU. G1000 Nav III Line Maintenance Manual Page 2-43 190-00352-00 Rev. N Message Cause Solutions MFD1 DB ERR – MFD1 Safe Taxi database error exists. The MFD has encountered an error in the Safe Taxi database. Confirm supplemental data card is inserted fully in the bottom slot of the display. Remove the supplemental data card from the bottom slot of the display and insert in the top slot. o If the problem is resolved, the bottom card slot is dirty or has failed. Try reinserting the card multiple times in the bottom slot to clean the card contacts. If the problem remains in the bottom slot, you may leave the card in the top slot (if the top slot if unused) or replace the display. Swap with a supplemental data card from another display in the same system. o If problem moves to the other display, reload the database or replace all the supplemental data cards as a set. o If problem remains in the same GDU, replace that GDU. Page 2-44 G1000 Nav III Line Maintenance Manual Rev. N 190-00352-00 Message Cause Solutions PFD1 DB ERR – PFD1 Safe Taxi database error exists. The PFD has encountered an error in the Safe Taxi database. Confirm supplemental data card is inserted fully in the bottom slot of the display. Remove the supplemental data card from the bottom slot of the display and insert in the top slot. If the problem is resolved, the bottom card slot is dirty or has failed. Try reinserting the card multiple times in the bottom slot to clean the card contacts. If the problem remains in the bottom slot, you may leave the card in the top slot (if the top slot if unused) or replace the display. Swap with a supplemental data card from another display in the same system. o If problem moves to the other display, reload the database or replace all the supplemental data cards as a set. o If problem remains in the same GDU, replace that GDU. G1000 Nav III Line Maintenance Manual Page 2-45 190-00352-00 Rev. N Message Cause Solutions MFD1 DB ERR – MFD1 Chartview database error exists. The MFD has encountered an error in the Chartview database. Confirm supplemental data card is inserted fully in the bottom slot of the display. Remove the supplemental data card from the bottom slot of the display and insert in the top slot. o If the problem is resolved, the bottom card slot is dirty or has failed. Try reinserting the card multiple times in the bottom slot to clean the card contacts. If the problem remains in the bottom slot, you may leave the card in the top slot (if the top slot if unused) or replace the display. Swap with a supplemental data card from another display in the same system. o If problem moves to the other display, reload the database or replace all the supplemental data cards as a set. o If problem remains in the same GDU, replace that GDU. PFD1 DB ERR – MFD1 Chartview database error exists. The PFD has encountered an error in the Chartview database. Confirm supplemental data card is inserted fully in the top slot of