Garmin GTN 750 Pilot's Guide - Page 371

Message Description Action COOLING - Backlight brightness GTN overtemp. has been reduced Reducing backlight due to high display brightness. temperatures. The backlight level will remain high enough to be visible in daylight conditions. Decrease cabin temperature and increase cabin airflow (especially near the GTN). Contact dealer for service if this message persists. COOLING FAN - The GTN cooling fan is The cooling fan has powered, but it is not failed. turning at the desired RPM. Decrease cabin temperature and increase cabin airflow (especially near the GTN) to prevent damage to the unit. Contact dealer for service. CROSSFILL ERROR Crossfill is inoperative Crossfill is not working due to loss of communication with other GTN or due to one GTN needing service. See section 16.4.1.4 for a list of crossfilled items that will no longer be crossfilled. Contact dealer for service. CROSSFILL ERROR GTN software mismatch. See CRG for crossfilled items. Crossfill is configured See section 16.4.1.4 for a list of "on" but is not working crossfilled items that will no longer due to software be crossfilled. Contact dealer to mismatch. have software versions updated. DATABASE Chart function unavailable. The GTN is configured for ChartView or FliteCharts and chart verification has failed. Contact dealer for service. DATABASE Chart database valid until [DATE]. The GTN is configured Verify chart database expiration for ChartView or date on the System - System FliteCharts and the Status page. Update chart chart database has or is database if necessary for about to expire. operations. Foreword Getting Started Audio & Xpdr Ctrl Com/Nav FPL Direct-To Proc Charts Wpt Info Map Traffic Terrain Weather Nearest Music Utilities System Messages Symbols Appendix 190-01007-03 Rev. B Garmin GTN 725/750 Pilot's Guide 17-5 Index