Analog Synthesizer with 32 Full-Size Keys,
3340 VCO with 4 Simultaneous Waveforms,
VCF, NovaMod FM Sources, 32-Step Sequencer,
Arpeggiator and Live Performance Kit
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.
Equipment required
1. A multimeter (with 1 mv resolution)
2. A 3.5 mm cable (mono or stereo should be ne)
985-40000-01104 Rev.A
2021-02-03
Condential, for internal use only. Not to be reproduced.
page 1 of 5
Synthesizers and Samplers
MS-1-BK /
MS-1-BU / MS-1-RD
Preparation
Make sure your MS-1 has been powered on for at least 30 minutes, and that it is situated in a place where the
temperature will not change drastically during calibration.
Remove all unused cables from the MS-1.
Set the controls 1 to 8 to the position shown in the right hand column of this table.
Set all the other faders, knobs and switches shown in the photo.
4
2
1
3
No.ControlSet to
1LFO RATEM
2WAVE FORM
3GLIDEM
4RANGE2’
5MAIN
6SUB OSC2 OCT DOWN
7VCAGAT E
8ENVELOPEGAT E
56
7
8
Calibration Procedure
Follow all steps in the order in which they are presented.
No.CV typeDescription
1Internal CVCalibrates the internal CV
2Output CVTunes the CV output
3External CVCompensate oscillator oset for external CV in
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Synthesizers and Samplers
MS-1-BK /
MS-1-BU / MS-1-RD
Internal CV Calibration
Press “KYBD + STEP” then power on device. All the sequencer LEDs will light up.
Press “Shift + STEP1” to start Internal CV calibration.
Wait for calibration to nish.
All of the sequencer LEDs will light up in sequence after this has nished.
Output CV Calibration
In this mode, these buttons have new functions:
There are four test modes A / B / C / D to be calibrated. Their target voltage is 0V / 1V / 3V / 5V respectively.
Button NameFunction
HOLD/RESTSelect test mode A
RESET/ACCENTSelect test mode B
ARP/SETENDSelect test mode C
PATTERN/BANKSelect test mode D
SHIFT—
PAG E—
PLAY/STOP—
RECSave
Button NameFunction
STEP1Select X1 (about ±1 mV)
STEP2Select X2 (about ±4.5 mV)
STEP4Select X3 (about ±9 mV)
STEP4Select X4 (about ±45 mV)
STEP5—
STEP6—
STEP7—
STEP8—
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KYBDDecrease
STEPIncrease
Synthesizers and Samplers
MS-1-BK /
MS-1-BU / MS-1-RD
Connect the Multimeter to CV Out as shown below.
Carry out the Internal CV Calibration before starting this Output CV calibration.
Press “Shift + STEP2” to enter user Output CV calibration mode.
Press “HOLD/REST” to select test mode A. You will need to watch the multimeter to adjust the output voltage.
Press “KYBD” or “STEP” to adjust the CV value until it is close to target level “0V”.
(Press “STEP1” “STEP2” “STEP3” or “STEP4” to select the incremental adjustment size “X1” “X2” “X3” or “X4”)
Press “RESET/ACCENT” to select test mode B.
Press “KYBD” or “STEP” to adjust the CV value until it is close to target level “1V”.
Press “ARP/SETEND” to select test mode C.
Press “KYBD” or “STEP” to adjust the CV value until it is close to target level “3V”.
Press “PATTERN/BANK” to select test mode D.
Press “KYBD” or “STEP” to adjust the CV value until it is close to target level “5V”.
Press “REC” to save and nish Output CV calibration.
page 4 of 5page 4 of 5
Synthesizers and Samplers
MS-1-BK /
MS-1-BU / MS-1-RD
External CV Calibration
Complete Output CV calibration, then connect the CV out jack to the CV in jack with a 3.5mm cable.
Press “Shift + STEP3” to start External CV calibration.
Wait for the calibration to nish, this is indicated by all of the sequencer LEDs will light up in sequence.