Marco chart non responsive
Marco charts can go into a deep sleep when not in use often. In this case on the front of the panel you will see a series of numbers with corelating buttons on the bottom underside. They are labeled 1 2 3 4 Hit either one and hold it in until a menu appears on the screen. In the menu, arrow down to the exit option and select it. You will hear the chart click and then the letters should appear as well. Should be all good then.