Garmin GTX 330, Installation Manual

Page: 33 / 48

Page 5-6 GTX 330 Installation Manual
Rev. 1 190-00207-02
5.2.4 DISPLAY MODE PAGE
DISPLAY MODE
Selection Description
AUTO (Automatic) 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.
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.
LEVEL
Sets the ambient light level for AUTO mode to change between negative and positive display. The higher the
number, the brighter the ambient light level to change over. This field has a range of 0 (zero) to 99, and is set to 75 at
the factory.
5.2.5 DISPLAY BACKLIGHT Page
BKLT (Backlight)
Selection Description
MAN (Manual) Display backlighting is controlled manually by the pilot on the
GTX 330 DISPLAY page. No backlight parameters can be entered
when the manual mode is selected.
AUTO (Automatic) 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.
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, but is not a user-entered field (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)
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.
DISPLAY MODE Page
DISPLAY BACKLIGHT Page