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985-40000-01170 Rev.A
2021-02-02
Condential, for internal use only. Not to be reproduced.
page 3 of 6
Synthesizers and Samplers
CAT
Oscillator Calibration using a guitar tuner:
The positions of knobs and switches are shown in red on Figure 1.
Connect a guitar tuner to the rear panel main 1/4" output.
Please pay special attention to the FREQUENCY knobs of VCO1 and VCO2.
Note that a pitch within 2 to 3 cents of the target frequency should be ne.
Figure 1
Calibration Procedure
VCO1 Calibration
Turn on the VCO1 SAW fader.
On your external keyboard, press the A2 key and adjust the VCO1 OFFSET trimmer (VR42 on the bottom side) while
observing the guitar tuner display (A2-110Hz) (See gure 2 below).
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