Gtx 335R, Gtx 345R, Gtx 33( ), Or Gtx 3000 Transponder - Garmin G1000 Nxi System Maintenance Manual

GTX 335R, GTX 345R, GTX 33( ), or GTX 3000 Transponder

Original GTX is Reinstalled
No software or configuration loading is required if the removed GTX 335R, GTX 345R, GTX 33,
or GTX 3000 is re-installed. This does not include units that were returned for repair as their
software and configuration files are deleted during the repair testing process. Continue to GTX
335R, GTX 345R, GTX 33, or GTX 3000 Test Section 7.5.4.
Original GTX Installed in Opposite Locations for Troubleshooting
No software loading is required if the original GTX #1 and GTX #2 are installed in opposite
locations. Continue to Transponder Configuration Section 7.5.3.
New, Repaired or Exchange GTX is Installed
If a new, repaired or exchange GTX 335R, GTX 345R, GTX 33( ), or GTX 3000 is installed, the
correct software and configuration files must be loaded to the unit. See Section 7.5.1.
LRU Replacement Procedure GTX1 or GTX2
1. Open the MFD, PFD 1 (PRI), PFD 1 (SEC), and PFD 2 circuit breakers.
2. Apply power to the G1000 system by connecting external power to the aircraft to
energize the aircraft and avionics electrical busses.
3. Turn on Avionics electrical busses.
4. Power on PFD2, MFD, and PFD1 in configuration mode.
5. Using the PFD1, scroll to the LRU replacement page.
6. Activate the curser and select GTX1 or GTX2, whichever was replaced in the LRU
dropdown box.
7. Press the CHK All softkey.
8. Press the Load softkey.
9. Press ENT to acknowledge the process was complete.
10. Deactivate the curser.
11. Scroll to the Configuration Manager page.
12. Press the CNFM CFG softkey.
13. Select ok when prompted to "Confirm configuration as expected configuration"
14. Power cycle the system. Verify there are no red-Xs or system alerts.
15. If red-Xs or system alerts are present, troubleshoot as necessary using Section 5 or re-
load the system using the legacy method in Section 7.5.2.
16. If there are no red-Xs or system alerts, continue to Section 7.5.3.
Legacy Replacement Procedure GTX1 or GTX2 (Alternate Method)
1. Insert the software loader card in the top slot of PFD1.
2. Power on PFD2, MFD, and PFD1 in configuration mode.
3. Select NO when "Do you want to update system files" is displayed on the screen of
PFD1.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Page 294
Revision 1