Gtx 335R Or Gtx 345R Transponder - Garmin G1000 NXi Supplemental Maintenance Manual

7. Select the Map – TAWS Map page on the MFD.
8. Verify that the title at the top of the page reads "Map – TAWS-B". If TAWS has not been
enabled, the title will read "Map – Terrain Proximity" or "Map – Terrain".
9. Press the MENU button and select "Test TAWS" from the pop-up menu.
10. After the TAWS test has completed, verify that "TAWS System Test Okay" is heard over
the cockpit speaker.
11. If no other service is to be performed, perform final return-to-service test as specified in
Section 9.
7.2

GTX 335R or GTX 345R Transponder

Original GTX is Reinstalled
No software or configuration loading is required if the removed GTX 335R or GTX 345R 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 or
GTX 345R Test Section 7.2.3.
New, Repaired or Exchange GTX is Installed
If a new, repaired or exchange GTX 335R or GTX 345R is installed, the correct software and
configuration files must be loaded to the unit. See Section 7.2.1.
LRU Replacement Procedure GTX1
1. Open the MFD and PFD circuit breakers.
2. Remove Garmin SD/MMC/FS 510 cards from bottom slots of the MFD and PFD if
present.
3. Apply power to the G1000 system by connecting external power to the aircraft to
energize the aircraft and avionics electrical busses.
4. Turn on Avionics electrical busses.
5. Power on the MFD and PFD in configuration mode.
6. Using the PFD, scroll to the LRU replacement page.
7. Activate the cursor and select GTX1 in the LRU dropdown box.
8. Press the CHK All softkey.
9. Press the Load softkey.
10. Press ENT to acknowledge the process was complete.
11. Deactivate the cursor.
12. Scroll to the Configuration Manager page.
13. Press the CNFM CFG softkey.
14. Select ok when prompted to "Confirm configuration as expected configuration"
15. Power cycle the system verify there are no red-Xs or system alerts.
16. 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 7.2.2.
G1000 NXi Supplemental Maintenance Manual
Textron Aviation G36/G58
Page 7-4
190-02765-05
Revision 2