Synthesizers and Samplers
POWER LEDRegion B LEDsRegion A LEDs
POLY D
Analog 4-Voice Polyphonic Synthesizer with
37 Full-Size Keys, 4 VCOs, Classic Ladder Filter,
LFO, BBD Stereo Chorus, Distortion, 32-Step
Sequencer and Arpeggiator
User Support Bulletin
Introduction
The unit is carefully calibrated at the factory. The performance may change over time or due to environmental changes,
and the following recalibration procedures can be used to bring it back to its factory settings.
Calibration Procedure
Summary:
CALIBRATION CHANNELS:
CHANNEL 1 — PITCH WHEEL MAX/MIN
CHANNEL 2 — PITCH WHEEL dead zone
CHANNEL 3 — MOD WHEEL MAX/MIN
CHANNEL 4 — AFTERTOUCH MIN
CHANNEL 5 — AFTERTOUCH MAX
985-40000-01084 Rev.A
2021-02-03
Condential, for internal use only. Not to be reproduced.
page 1 of 10
Synthesizers and Samplers
POLY D
Operation:
Follow all steps in the order in which they are presented.
Start Calibration Routine
1. Press and hold button ”KYBD + STEP”, then power on POLY D.
2. When all the LEDs are running (during the rst 3 seconds after power on), press button “3” to start the
calibration routine.
3. Power LED will blink RED.
Start PITCH WHEEL Calibration
1. Press button “1” to calibrate PITCH WHEEL.
2. Button “1” LED will light and region A LEDs will indicate current PITCH WHEEL position.
985-40000-01084 Rev.A
2021-02-03
Condential, for internal use only. Not to be reproduced.
page 2 of 10
page 2 of 10
Synthesizers and Samplers
POLY D
Calibrate PITCH WHEEL Maximum Position
Move the PITCH WHEEL to its maximum position. Region A LEDs will show maximum position of PITCH WHEEL.
985-40000-01084 Rev.A
2021-02-03
Condential, for internal use only. Not to be reproduced.
page 3 of 10
page 3 of 10
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