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
Synthesizers and Samplers
POLY D
Calibrate PITCH WHEEL Minimum Position
Move the PITCH WHEEL to its minimum 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 4 of 10
page 4 of 10
Synthesizers and Samplers
POLY D
Start PITCH WHEEL Dead Zone Calibration
1. First release PITCH WHEEL.
2. Press button “2” to calibrate PITCH WHEEL dead zone.
3. Button “2” LED will light on and region A LEDs will indicate current PITCH WHEEL position.
Calibrate PITCH WHEEL dead zone
Move the PITCH WHEEL within the dead zone where you don't feel the tension of the spring. This will ensure that no
pitch information is sent while pitch wheel is not being touched.
985-40000-01084 Rev.A
2021-02-03
Condential, for internal use only. Not to be reproduced.
page 5 of 10
page 5 of 10
Synthesizers and Samplers
POLY D
Start MOD WHEEL Calibration
1. First move MOD WHEEL to its minimum position.
2. Press button “3” to calibrate MOD WHEEL.
3. Button “3” LED will light and Region A LEDs will indicate current MOD WHEEL position.
985-40000-01084 Rev.A
2021-02-03
Condential, for internal use only. Not to be reproduced.
page 6 of 10
page 6 of 10
Synthesizers and Samplers
POLY D
Calibrate MOD WHEEL Maximum Position
Move the MOD WHEEL to its maximum position. Region A LEDs will show maximum position of MOD WHEEL.
985-40000-01084 Rev.A
2021-02-03
Condential, for internal use only. Not to be reproduced.
page 7 of 10
page 7 of 10
Synthesizers and Samplers
POLY D
Calibrate MOD WHEEL Minimum Position
Move the MOD WHEEL to its minimum position. Region A LEDs will show minimum position of MOD WHEEL.
Start AFTER TOUCH Minimum Position Calibration
1. Press button“4” to calibrate AFTER TOUCH minimum position.
2. Button “4” LED will light on and region A LEDs will indicate current AFTER TOUCH value.
985-40000-01084 Rev.A
2021-02-03
Condential, for internal use only. Not to be reproduced.
page 8 of 10
page 8 of 10
Synthesizers and Samplers
POLY D
Calibrate AFTER TOUCH Minimum Position
Apply a small pressure to any one of the keys (or multiple keys) or do not apply any pressure.
This will ensure that no after touch information is sent while keys are not being pressed.
Start AFTER TOUCH Maximum Position Calibration
1. Press button “5” to calibrate AFTER TOUCH maximum position.
2. Button “5” LED will light on and Region A LEDs will indicate current AFTER TOUCH value.
985-40000-01084 Rev.A
2021-02-03
Condential, for internal use only. Not to be reproduced.
page 9 of 10
page 9 of 10
Synthesizers and Samplers
POLY D
Calibrate AFTER TOUCH Maximum Position
Apply pressure to any one of the keys (or multiple keys) until AFTER TOUCH value stops increasing (Region A LEDs will
indicate current AFTER TOUCH value).
Calibration Complete.
Press SHIFT + STEP to conrm and save all calibration results. Region B LED will show calibration results. Relative LED
will light to indicate corresponding channel is calibrated. Otherwise it may be a failed calibration.
NOTE: Press SHIFT + KYBD will cancel all calibration and return to normal mode.
TIPS:
A. You can calibrate only one of the channels (1-3) at a time.
B. For channel 4 and 5, you have to calibrate both of them simultaneously.
End of Procedure
Music Tribe accepts no liability for any loss which may be suered by any person who relies either wholly or in part upon any description, photograph, or statement contained herein.
Technical specications, appearances and other information are subject to change without notice. All trademarks are the property of their respective owners. Midas, Klark Teknik,
Lab Gruppen, Lake, Tannoy, Turbosound, TC Electronic, TC Helicon, Behringer, Bugera, Oberheim, Auratone and Coolaudio are trademarks or registered trademarks of Music Tribe Global
Brands Ltd. © Music Tribe Global Brands Ltd. 2021 All rights reserved.
985-40000-01084 Rev.A
Condential, for internal use only. Not to be reproduced.
2021-02-03
Condential, for internal use only. Not to be reproduced.
page 10 of 10
page 10 of 10
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