M2SYNTH Compact LP VCF 116 User manual

Compact LP VCF 116 V1b 1
Compact LP VCF 116
Kit Assembly Instructions

Compact LP VCF 116 V1b 2
Features
1 Volt / Octave cut-off frequency CV
Cut-off modulation input with potentiometer attenuator (FM3)
Resonance potentiometer control with an external CV resonance input
Self-oscillates with high resonance settings of >70%
Kit Contents
Description
Reference
MOTM
Quantity
MU
Qty
Notes
Components Kit
7216-116-1
1
1
See BOM
Accessories Pack including:
7216-116-2
1
1
Pot Sticky Pads
7210-188
4
4
10mm M4 Spacers
7210-186
4
4
M4 x 14 Cap Head Screws
7210-187
4
4
M3 x 8mm Stainless Panel Screws
7210-189
4
4
14-Pin IC Socket
7212-332
1
1
18-Pin IC Socket
7212-334
1
1
Power Lead
7216-164
1
MOTM Front Panel
7216-516
1
Black
MOTM Back Panel
7216-816
1
MU Front and Back Panel
7219-516
1
Main PCB
7216-016
1
1
Jack Socket PCB
7215-723
1
1
Jack Sockets
7216-606
1
1
Pack of 6
B100k Pots Long Shaft
7216-704
1
Pack of 4
B100k Pots Short Shaft
7216-734
1
Pack of 4
KM20B Knobs
7212-104
1
Pack of 4
MU Knobs
7219-104
1
Pack of 4
General Assembly Guidance Booklet
1
1
BOM
S-7216-016-b
1
1
Circuit Schematic
S-7216-016-b
1
1
PCB Layout
S-7216-016-b
1
1

Compact LP VCF 116 V1b 3
Assembly Instructions
The Compact LP VCF module has no particular requirements not already covered in the
‘General Guidance on a M²Synth Module Assembly’ booklet included with this kit.
Calibration
1. Connect a sinewave of 440Hz @ 10V p-p to Signal input 1
2. Set Freq cut-off to 100%, Resonance to 0%
3. Adjust PR1 to give a sinewave on the Low pass output also of 10V p-p
4. Remove the sinewave signal from Signal input 1
5. Increase the resonance control to 100% (self-oscillating)
6. Measure the frequency at the Low pass output
7. Apply a CV of 0V to the CV In socket
8. Adjust the Freq cut-off to give 100Hz
9. Apply a CV of 4V to the CV In socket
10. Adjust Pr2 to give 1.6kHz
11. Repeat steps 7-10 until calibrated
Specification
Supply voltage +/-12Vdc
Supply current +13mA / -16mA
Waveform levels +/-5V
Frequency range: 18Hz to 14kHz without any CV applied
Main PCB dimensions 43.5x130mm
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