Monitor Check: Notes

Overview of display unit

• The display unit communicates with the navigation unit over its own GA-Net bus. Information sent by the navigation unit to the display unit includes commands to control the LCD back light.
• The security system protects the navigation display unit 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 buttons surrounding the screen, not the main screen

These screens help you troubleshoot the display unit. Select the item you want to troubleshoot, and follow the diagnostic instructions.

• RGB color
• Gray Tone
• White Raster
• Black Raster
• Color Pattern
• Monitor Adjustment