Calibrating 1V/oct jacks
For maximum accuracy, it's recommended to calibrate the
Pitch
and
Root
jacks to your keyboard or sequencer. There are
many factors that could cause incorrect tuning when using external equipment even if all the equipment is nominally 1V/oct.
You also can calibrate your jacks if you want to use an external device that runs on 1.2V/octave. Calibration is fast and easy.
1) Unpatch all cables, except
Out A
and
Out B
.
2) Hold down the
Learn
and
Freeze
buttons for about 2 seconds. Release them when the
colors change.
3)
Learn
will be slowly flashing blue. Input a C2 into the
Pitch
jack and press the
Learn
button.
4)
Learn
will be quickly flashing blue. Input a C4 into the
Pitch
jack and press the
Learn
button.
5)
Freeze
will be slowly flashing blue. Input a C2 into the
Root
jack and press the
Freeze
button.
6)
Freeze
will be quickly flashing blue. Input a C4 into the
Root
jack and press the
Freeze
button.
7) If the calibration was successful, the lights will flash green and the module will return to normal operation.
The calibration results will be saved even after powering the module off.
If an error occurs, the lights will flash red and the procedure will be aborted without saving any calibration data.
One possible cause for an error is reading a value on a jack that’s out of the acceptable range. The acceptable range is
between 0.7V/oct and 1.3V/oct. This means a C2 must be between 1.4V and 2.6V, and a C4 must be between 2.8V and
5.2V. There will also be an error if you have any cables patched into
Root
or
Pitch
when you enter calibration mode, or if
any of the other CV jacks are patched during the procedure.
Button RGB color balance adjustments
The two buttons have been color-matched at the factory, so there is usually no need to adjust the colors yourself. However,
the procedure is easy.
1) Power off the module.
2) Flip all four switches to the center position.
3) Turn all knobs to center.
4) Hold down the
Freeze
button and power up the module. The two buttons will turn white (or a hue close to white).
5) Use the knobs to adjust the red, green, and blue balance of each button. The center position makes no color adjustment;
left of center reduces the amount of a color; right of center boosts the amount of the color.
•
Scale
: adjusts the amount of
red
in the
Learn
button
•
Balance
: adjusts the amount of
green
in the
Learn
button
•
Twist
: adjusts the amount of
blue
in the
Learn
button
•
Pitch
: adjusts the amount of
red
in the
Freeze
button
•
Cross FM
: adjusts the amount of
green
in the
Freeze
button
•
Warp
: adjusts the amount of
blue
in the
Freeze
button
6) If at any time you want to see how the current color adjustments appear with the default yellow button color, flip the
Scale
switch up. Flip it back to center to go back to the white color.
7) When you’re done, press the
Freeze
button to save the color adjustments.
To cancel without saving, power the module off.
Factory Reset
Performing a factory reset is an irreversible act. All custom scales, settings, CV jack calibrations, and color adjustments will
be erased. It cannot be undone. If you only wish to restore the factory scales, you can restore the selected scale by holding
down the
Learn
button for 4 seconds.
To perform a factory reset:
1) Power off the module.
2) Power on with both buttons down, and keep holding them down.
3) When you see the
Learn
button turn green, release
Learn
but continue holding down
Freeze.
4) After about 10 seconds, the lights will blink rapidly. The memory is being erased. You can release
Freeze
.
5) When the memory is done being erased, the lights will slowly blink through a sequence of colors.
6) Power the module off. When you power it back on, the default scales and settings will be loaded.
If after erasing the memory the lights blink red (and no other colors), there was a memory error. Please contact 4ms
Company for assistance.
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