Garmin G1000 NXi Supplemental Maintenance Manual page 5

4.1 Airworthiness Limitations .............................................................................................. 4-1
4.2 Servicing Information .................................................................................................... 4-2
4.3 Maintenance Intervals ................................................................................................... 4-4
4.4 Electrical Bonding Test ................................................................................................. 4-5
4.5 GSU 75 Earth Magnetic Field Updates ......................................................................... 4-6
4.6 G1000 Redundant Connection Check .......................................................................... 4-6
5. TROUBLESHOOTING ........................................................................................................ 5-1
5.1 System Annunciations .................................................................................................. 5-2
5.2 G1000 Alerting System ............................................................................................... 5-12
5.3 Synthetic Vision and Pathways Troubleshooting ........................................................ 5-13
5.4 Backup Communications Path Checks ....................................................................... 5-14
5.5 GDU 105X Troubleshooting ........................................................................................ 5-15
5.6 GDU 105X Alerts ........................................................................................................ 5-17
5.7 GTX Troubleshooting .................................................................................................. 5-21
5.8 GDL69A SXM Troubleshooting (if installed) ............................................................... 5-22
5.9 GSU 75 and GMU 44 Troubleshooting ....................................................................... 5-23
5.10 GSU 75 Troubleshooting ............................................................................................ 5-27
5.11 Software/Configuration Troubleshooting ..................................................................... 5-28
5.12 Backshell/Backplate Connectors ................................................................................ 5-30
6. EQUIPMENT REMOVAL & INSTALLATION ..................................................................... 6-1
6.1 GDU 1054B/1050 .......................................................................................................... 6-2
6.2 GTX 335R/GTRX 345R Transponder (if installed) ........................................................ 6-2
6.3 GSU 75 ADAHRS (if installed) ...................................................................................... 6-2
6.4 GDL 69A SXM (if installed) ........................................................................................... 6-3
6.5 Configuration Modules .................................................................................................. 6-3
7. GARMIN G1000 LRU REPLACEMENT/CONFIGURATION & TESTING .......................... 7-1
7.1 GDU 1054B/1050 PFD & MFD ..................................................................................... 7-1
7.2 GMA 1347 Audio Panel ................................................................................................ 7-4
7.3 GIA 63W Integrated Avionics Unit ................................................................................ 7-8
7.4 GEA 71 Engine/Airframe Unit ..................................................................................... 7-17
7.5 GTX 335R, GTX 345R, or GTX 33 Transponder ........................................................ 7-21
7.6 GSU 75 ADAHRS (if installed) .................................................................................... 7-24
7.7 GDC 74A Air Data ....................................................................................................... 7-26
7.8 GRS 77 and GMU 44 Magnetometer (if installed) ...................................................... 7-30
7.9 GMU 44 Magnetometer .............................................................................................. 7-32
7.10 GSU/GRS/GMU Calibration Procedures .................................................................... 7-33
G1000 Supplemental Maintenance Manual
Textron Nav III Series
190-02128-04
Page iv
Revision 3