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Monitor Check Overview of display unit • The display unit communicates with the navigation unit over its own GA-Net bus. Information is sent to the navigation unit whenever the user activates the mands to control the LCD back light. • The navigation unit also sends navigation informa- tion to the screen using the Red, Green, Blue, and • The display unit is protected by the security system by daisy-chaining the security signal through it, and then passing the signal to the audio unit. • The illumination input from the gauge brightness control provides back lighting for the hard buttons • The display unit also communicates with the climate control module to set the A/C mode, and fan speed. These screens allow troubleshooting of the display unit. low the diagnostic instructions. RGB Color The three primary colors should all be shown without distortion. The combination of all three should produce troubleshoot for the color signal (see page ). If the picture has lines in it or scrolls horizontally, or vertically, troubleshoot for a Composite sync problem (see page ). Gray Tone White Raster Main Menu Table of Contents |