Zoom AC-2, AC-3 User manual

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In Version 1.1, tuner calibration function was added where the

reference pitch can be adjusted between 436 - 444 Hz. This guide explains

how you can use this new function.

Version 1.1 Supplementary Manual

Changing the standard pitch of the tuner

• Turn the power ON while pressing .

(The tuner indicator blinks.)

• Press to change the standard pitch.

440 Hz

439 Hz

441 Hz

442 Hz

443 Hz

438 Hz

436 Hz

437 Hz

444 Hz

• Press to conﬁrm the setting. (The tuner indicator stays lit.)