Figure 6-22 Display Backlight And Minimum Level Page; Figure 6-23 Keypad Backlight And Minimum Level Page - Garmin GTX 3X5 Series Installation Manual

Display Backlight
Configures the source for the display backlight control and adjustment. Select PHOTOCELL if the lighting level uses
ambient lighting. Select LIGHTING BUS if an input from the lighting bus is used to dim the display.
Minimum Level
Configures the minimum brightness of the display. The range is 0 to 100. The higher the number, the brighter the
minimum brightness.
Keypad Backlight
Configures the source for the keypad backlight control and adjustment. Select PHOTOCELL if the lighting level uses
ambient lighting. Select LIGHTING BUS if an input from the lighting bus is used to dim the keypad.
Minimum Level
Configures the minimum brightness of the keypad. The range is 0 to 100. The higher the number, the brighter the
minimum brightness.
Photocell Transition
Configures a point on the lighting bus. When the lighting bus is below this point, the GTX 3X5 uses the photocell to
adjust the display brightness. The range is 5 to 50.
190-01499-02
Rev. 9

Figure 6-22 Display Backlight and Minimum Level Page

Figure 6-23 Keypad Backlight and Minimum Level Page

Post Installation Configuration & Checkout
GTX 3X5 Transponder TSO Installation Manual
Page 6-18