Garmin GTX 327 Installation Manual

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

Page 24 GTX 327 Installation ManualRev J 190-00187-023.3.1 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.3.3.2 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.LVL (Level)Shows the current level of display backlighting, based on the lighting input source (lighting bus voltage,or the ambient light if the source is PHOTO) and the settings on this configuration page. This field has arange of 0 (zero) to 999. The level is set by pressing the 8 and 9 keys when MAN mode is selected.When in AUTO mode, the field is for display only.RSP TIME (Response Time)Sets the speed with which the brightness responds to ambient light changes (only for AUTO backlightmode). The higher the number, the slower the display responds. This field has a range of 3 to 7, and isset to 4 at the factory.MIN (Minimum) (Auto Only)Sets the minimum brightness of the display. The higher the number, the brighter the minimumbrightness. Display minimum brightness has a range of 0 (zero) to 99, and is set to 8 at the factory. It isprudent to verify that display lighting characteristics match those of other equipment in the panel undernight lighting conditions.DISPLAY MODE PageDISPLAY BACKLIGHT Page