Installation Instructions
190-01007-A3 GTN 6XX/7XX AML STC Installation Manual
Rev. 4 Page 5-5
5.4.2 GMA 35 Software Loading
Before attempting to load software to the GMA 35, the GTN RS-232 port to which the GMA 35 is
connected must be configured for ‘GMA Format 1’. See Section 5.5.1.2 for more information.
1. Remove power from the GTN by opening the circuit breaker
2. Insert the correct GMA 35 Loader Card into the GTN 7XX SD card slot. See Section 2.3.3 for
instructions on how to create a loader card.
3. Hold down the HOME key until ‘Garmin’ is fully lit on the display after power is applied by
closing the circuit breaker for the GTN 7XX.
4. Ensure the GMA 35 circuit breaker is closed.
5. The Configuration Mode home page should now be displayed. Touch the Updates key to display
the software that is available.
6. To select GMA 35 software updates, touch the GTN Software Updates key on the top left corner
of the display and select GMA 35 Software Updates.
7. To update the GMA 35 with all software available, touch Select All.
8. To begin the software update, touch the Update key on the bottom of the display.
9. The GTN will display the prompt, ‘Start GMA 35 Software Updates?’
10. Touch OK to allow the GTN to update the GMA 35.
11. When the updates are finished, the GTN will display ‘Update Complete!’
12. When finished, turn the GTN off (open the circuit breaker) and remove the Software loader card.
Reinsert the database card in the SD card slot.
13. Cycle power on the GMA 35 and ensure the software was updated correctly by going to the
‘System Information’ page and selecting the GMA 35.
5.4.3 GDL 69/69A Software Loading
Although the GTN is a portal to install software for the GDL 69/69A, this STC does not cover the
installation of the GDL 69/69A or its software. Refer to the GDL 69/69A Installation Manual,
P/N 190-00355-02 or 190-00355-07.
1. Remove power from the GTN by opening the circuit breaker.
2. Insert the correct GDL 69/69A Loader Card into the SD card slot.
3. Press and hold the HOME key while applying power until ‘GARMIN’ is fully lit on the GTN
display. Power is applied by closing the GTN circuit breaker.
4. Ensure the GDL 69/69A circuit breaker is closed.
5. The Configuration Mode home page should now be displayed.
6. Touch the Updates key to display the updates that are available.
7. To select GDL 69/69A software updates, touch the GTN Software Updates key on the top left
corner of the display and select the update type GDL 69/69A Software Updates.
8. To update the GDL 69/69A with all updates available, touch Select All.
9. To begin the software update, touch the Update key on the bottom of the display. The GTN will
display the prompt, ‘Start GDL 69/69A Software Updates?’
10. Touch OK to allow the GTN to update the GDL 69/69A.
11. When the updates are finished, the GTN will display ‘Update Complete!’
12. When finished, turn the GTN off (open the circuit breaker) and remove the software loader card.
Reinsert the database card in the SD card slot.
13. Cycle power on the GDL 69 and ensure the software was updated correctly by going to the
‘System Information’ page on the GTN and select the GDL 69/69A. The correct software version
should be displayed.