Strange screens

[George]

476475

My 3400 has been acting strange. There are only two screens available and I’ve attached photos of them. Hitting the Page button only cycles back and forth between these two. My system software is current and I don’t recall doing anything to make any changes. This is only my map screen and I don’t change it. Ideas?

[Shawn McGinnis]

It's the clock battery needing to be replaced:

https://www.advancedflightsystems.com/af-nons-clock-battery.php (https://www.advancedflightsystems.com/af-nons-clock-battery.php)

[George]

Thanks Shawn!