Figure 6-15. Enhanced Lighting Configuration - Display-Day Mode Page - Garmin GTN 625 Installation Manual

CONFIGURE CURVE PAGE
Under this setting, the display or key lighting curves may be customized.
Vertices: Four vertices may be maneuvered by touching and dragging the points to the appropriate input/
brightness location. A vertex may not be positioned to the left or right of bordering vertices, and a vertex
may not be positioned above the point to the right or below a point to the left. The position of the points are
bounded by the maximum and minimum brightness levels respectively. As an alternative method of
adjustment, the coordinate buttons on the page may be selected and the input/brightness levels may be
adjusted using the control arrows. This is depicted in Figure 6-15.
Swap Curves: This selection item is only available when the lighting source is configured for Lighting Bus
1 or 2. This selection transitions between the source curve and the photocell curve.
Source Curve: This curve may be either be a curve for photocell or lighting bus, depending on the main
source configuration. If display or key source is configured for lighting bus, then the source curve is for the
lighting bus curve.
Photocell Curve: This curve is only available if a lighting bus is configured as the main source input. The
curve must be configured across the entire input range. The photocell curve will take over when the
lighting bus input drops below the photocell transition percentage.

Figure 6-15. Enhanced Lighting Configuration - Display-Day Mode Page

6.6.7.3 Night Mode Operation Page
Access the Night Mode Operation page, as shown in Figure 6-16, by touching the 'Night Mode Operation'
key on the Enhanced Lighting Configuration page, shown in Figure 6-12. The available settings on the
Night Mode Operation page are similar to those shown on the Day Mode Operation page. See Section
6.6.7.2 for more information.
Figure 6-16. Enhanced Lighting Configuration - Night Mode Operation Page
GTN 625/635/650 TSO Installation Manual 190-01004-02
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