Use the following procedure to check the condition of the batteries:
1. Press the PATCH button so it is not lit.
2. Press the MIDI/PARAMETER button so it is lit.
3. Press the 2 button followed by the 5 button.
4. Press and hold ENTER.
The LEDs will show the condition of the batteries. Each LED lit equals about 2 hours of use if you are using alkaline batteries. The condition of charge is shown as long as the ENTER button is held.
5. Release the ENTER button when finished.