Display Mode Page; Display Backlight Page - Garmin GTX 327 Installation Manual

3.3.1 DISPLAY MODE Page

DISPLAY MODE
Selection
AUTO (Automatic)
NGTV (Negative)
PSTV (Positive)
LEVEL
Sets 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 a
range of 0 (zero) to 99, and is set to 75 at the factory.

3.3.2 DISPLAY BACKLIGHT Page

BKLT (Backlight)
Selection
MAN (Manual)
AUTO (Automatic)
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 a
range 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 backlight
mode). The higher the number, the slower the display responds. This field has a range of 3 to 7, and is
set to 4 at the factory.
MIN (Minimum) (Auto Only)
Sets the minimum brightness of the display. The higher the number, the brighter the minimum
brightness. Display minimum brightness has a range of 0 (zero) to 99, and is set to 8 at the factory. It is
prudent to verify that display lighting characteristics match those of other equipment in the panel under
night lighting conditions.
Page 24
Rev J
Description
DEFAULT. The display will automatically change between Positive
mode (during the day) and Negative mode (at night), depending on the
ambient light level received by the photocell.
The display will always be light characters on a black background,
regardless of ambient lighting.
The display will always be black characters on a light background,
regardless of ambient lighting.
Description
Display backlighting is controlled manually by the pilot on the
GTX 327 DISPLAY page. No backlight parameters can be entered
when the manual mode is selected.
DEFAULT. Display backlighting is automatically controlled, based
on the parameters entered on this configuration page. When AUTO is
selected, the DISPLAY page does not appear to the pilot when the
GTX 327 is operated in normal mode.
DISPLAY MODE Page
DISPLAY BACKLIGHT Page
GTX 327 Installation Manual
190-00187-02