Mod Duo - Tuning

Tuning
The MOD Duo has a built-in chromatic tuner which can be accessed by pressing and holding
the right knob for one second. Both inputs can be used as the tuner input, to select between
them short press the right knob. To exit the tuner press and hold the right knob for one
second.
If you see a question mark on the tuner screen, it means the MOD Duo is not receiving any
input.
To tune a guitar, play an unfretted note on a string and tune it until you see the correct note
on the display. When the background of the rectangle becomes black the string is in tune.
Each vertical bar represents 10 cents. The first bar, to the right or left of the central
rectangle, is filled when the signal is between 1-10 cents out of tune, the second bar when it
is 11-20 cents out of tune, and so on, and so forth.
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