NAV Display - Night Mode

I made a discovery last night for an issue that was bugging me.

The NAV display at night had an almost black background. Changing the background color in the NAV preferences screen made no difference. I had adjusted my brightness and contrast before, just not while in "Night Mode"

What I didn't realize is that the brightness and contrast settings for the MFD work independently in both day and night modes.

To Fix I did the following:

1) Switch to Night Mode
- Turn on headlights, and make sure the dimmer is in a middle position.

2) View the NAV Map screen.

3) Press the Display Button on the left side of the MFD.

4) Reduce the contrast until you see both color and pattern to the background of the map - similar to the day mode.
- I found on my display that the default middle setting for contrast gave me a black background.

5) Now when you set the background color from the NAV setup screen (Page 4/4), it will change from Blue (Default) to Green, etc.


Has anyone else had this problem or was it unique to my display?