Garmin GTX327 Installation Manual

Also see for GTX 327: Pilot's guide Pilot's guide Installation manual Pilot's guide Pilot's guide

Page 5-4 GTX 327 Installation ManualRevision K 190-00187-02Avoid selecting code 7500 and all codes in the 7600-7777 range. These codes trigger special indicatorsin automated facilities. An aircraft’s transponder code is used for ATC tracking purposes, thereforeexercise care when making routine code changes.5.2 Configuration PagesWith the unit turned off, holding down the FUNC key and pressing one of the power on keys providesaccess to the configuration pages. The FUNC key sequences through the configuration pages. TheSTART/STOP key reverses through the pages, stopping at the first configuration page. The CRSR keyhighlights selectable fields on each page. When a field is highlighted, numeric data entry is performedwith the 0 – 9 keys and list selections are performed with the 8 or 9 keys. Press the CRSR key to acceptchanges. Pressing the FUNC key displays the next configuration page without saving the changes.Configuration page changes are stored in EEPROM memory. To exit the configuration pages, turn thepower off. Then turn on again (without holding the FUNC key) for normal operation.5.2.1 DISPLAY MODE PageDISPLAY MODESelection DescriptionAUTO (Automatic) DEFAULT. The display will automatically change between Positivemode (during the day) and Negative mode (at night), depending on theambient light level received by the photocell.NGTV (Negative) The display will always be light characters on a black background,regardless of ambient lighting.PSTV (Positive) The display will always be black characters on a light background,regardless of ambient lighting.LEVELSets the ambient light level required for AUTO mode to change between negative and positive display.The higher the number, the brighter the ambient light level required for the change-over. This field has arange of 0 (zero) to 99, and is set to 75 at the factory.5.2.2 DISPLAY BACKLIGHT PageBKLT (Backlight)Selection DescriptionMAN (Manual) Display backlighting is controlled manually by the pilot on theGTX 327 DISPLAY page. No backlight parameters can be enteredwhen the manual mode is selected.AUTO (Automatic) DEFAULT. Display backlighting is automatically controlled, basedon the parameters entered on this configuration page. When AUTO isselected, the DISPLAY page does not appear to the pilot when theGTX 327 is operated in normal mode.DISPLAY MODE PageDISPLAY BACKLIGHT Page