Zoom AC-3 - Tuner Operation; Setting Battery Type for Accuracy

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Using the tuner
Setting the type of batteries used
Press the TUNER switch to turn the tuner on and off. Play the open string that
you want to tune and the closest pitch name LED will light. The LED meter will
show the pitch error.
Tuner indicator
(ON/OFF)
When the pitch is correct, the LED
at the center of the meter will light
green and LEDs to the left and right
will light red.
NOTE
The output is muted when the tuner is on. The standard pitch is xed at A4 = 440 Hz.
←
Low pitch
High pitch
→
Set the type of battery used by the so that the remaining battery charge
can be indicated accurately.
• Turn the power ON while pressing .
(The boost indicator blinks.)
• Press to set the type of battery used.
Power indicator
(front panel)
• Press to conrm the setting. (The boost indicator stays lit.)
Lit green: Alkaline batteries
Lit red: Nickel metal hydride batteries