1190-01007-04 Rev. C GTN 725/750 Cockpit Reference Guide (CRG)IntroductionINTRODUCTIONThis cockpit reference guide (CRG) is intended to serve as a quick referencecovering the basic features and operating procedures for the GTN 725/750.For detailed descriptions of any information found in this guide, refer to thelatest revision of the GTN 725/750 Pilot’s Guide, P/N 190-01007-03 found atwww.garmin.com.Largeand SmallKnobsVolume andSquelchActive COM FrequencyStandby COMFrequencyActive NAVFrequencyTransponderDisplayAudio PanelFlip/FlopKeys forCOMStandbyNAVFrequencyDirect-ToKeyPhotoSensorHomeKeySD CardMessagesFunctionIconsTouchscreenDisplayLarge and Small KnobFunction AnnunciationLockingScrewGTN 750 Front Panel/Main PageDirect-To Key - Press to provide a direct course to a selectedwaypoint.Home Key - A single press of the Home Key returns the userto the main page to access features. Pressing and holding theHOME key while on any page will display the default MAP page.Volume and Squelch Knob - Upper left knob controls volume ofthe COM and NAV radios. Press to use the IDENT function of theNAV radio. Pressing and holding the volume knob will change thefrequency to emergency frequency.Large and Small Knobs - Both are rotary knobs. The smallknob can be pressed and held in to fl ip-flop COM and NAVfrequencies.