System Maintenance Manual GTN 6XX/7XX Part 23 AML STC 190-01007-A1Page 3-6 Rev. 53.4 GTN Configuration Mode OverviewNOTEWhen configuring the GTN, ensure that no configuration module service messages aredisplayed in the message queue. This would indicate that the configuration module isimproperly wired or damaged.Configuration mode is used to configure the GTN settings for each specific installation. To accessconfiguration mode, perform the following steps:1. Remove power from the GTN by opening the circuit breaker.2. Press and hold the HOME key and reapply power to the GTN (push in the circuit breaker).3. Release the HOME key when the display activates and the name ‘Garmin’ appears fully lit on thescreen.The first page displayed is the Configuration Mode page, as shown in Figure 3-8. For detailed informationregarding how to configure the GTN, refer to the GTN 6XX/7XX AML STC Installation Manual,P/N 190-01007-A3. While in configuration mode, pages can be selected by touching the desired key on thedisplay. Some pages may require page scrolling to view all of the information and keys on the page.Scrolling is done by touching the screen and dragging the page in the desired direction, or by touching theUp or Down keys.NOTEThe configuration pages shown here reflect main software version 3.00. Some differencesin operation may be observed when comparing information in this manual to latersoftware versions.Figure 3-8. GTN 6XX and GTN 7XX Configuration Mode Pages
