Symptom: The HC-100 screen will dim after a few minutes of no user activity and will not turn back ON after pressing the buttons on the controller.

  1. Keypad related: 
    1. Only the Power Button will turn the display back ON
      1. Press the Power Button once in order to turn it back ON. NOTE: if the left LED below the Power Button is green, you have to wait until it turns off before you can turn the display ON.