Monitor Check

Monitor Check 

Overview of the navigation display unit.

The navigation display unit communicates with the audio-navigation unit over its own GA-Net bus. Information sent by the audio-navigation unit to the navigation display unit includes commands to control the LCD back light.

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

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RGB 

This screen verifies that the display unit is receiving the video (R, G, B, and Composite sync) signals properly. The three primary colors should all appear without distortion. The combination of all three should produce a central white section. Refer to: If any of the colors are missing, troubleshoot for the color signal . If the picture has lines in it or scrolls horizontally, or vertically, troubleshoot for a Composite sync problem .

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Gray Tone 

This screen checks problems with contrast. You should be able to see the changes from bar to bar across the scale. It is normal for the two bars on either side to appear the same. If you cannot see changes from bar to bar, replace the navigation display unit .

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White Raster 

This screen checks for pixels that may be dead (off). The entire display must be white. If there are dead pixels, replace the navigation display unit .

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Black Raster 

This screen checks for pixels that may be stuck on. The entire display must be black. If pixels are stuck on, replace the navigation display unit .

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Color Pattern 

The screen shows the colors being used for the map and menu screens. This is for factory use only. To check the color signal, use the RGB Color diagnosis.

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Monitor Adjustment 

This screen allows you to adjust the navigation display or the rearview camera guide line. Select the item you want to adjust.

• Navi: This allows you to center the navigation display.
• Rear Camera: This allows you to adjust the rearview camera guide lines.

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Navi 

If you selected the Navi, select Tuning, and use the interface dial to move the picture up/down or left/right. Then select Set to save the selection. Do not adjust the monitor position unless directed by a service bulletin. Default resets the display position to factory specifications.

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Rear Camera 

If you selected the Rear Camera, then select Tuning, and use the interface dial to move the picture up/down or left/right. then select the Return to return the previous screen, and save the selection. Do not adjust the monitor position unless directed by a service bulletin. Default resets the display position to factory specifications.

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