Garmin GTN6XX User Manual

190-01007-A1

System Maintenance Manual GTN 6XX/7XX Part 23 AML STC

Rev. 7

Page 3-5

1. Remove power from the GTN 7XX by opening the circuit breaker

2. Insert the GTN Software Loader Card into the GTN 7XX data card slot (See Section 3.3.1 for

instructions on how to create a GTN Software 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 also closed.
5. The Configuration Mode 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 and GMA 35 off (open the circuit breaker) and remove the Software

Loader Card. Reinsert the database card in the data card slot.

13. Restore power on the GTN and GMA 35 by closing the circuit breakers and ensure the software

was updated correctly by going to the System Information page and selecting the GMA 35. Refer
to Section 3.4.2 for more information on the System Information page.