M2SYNTH VCLFO 105 User manual

VCLFO 105 V1c 1
VCLFO 105
Kit Assembly Instructions

VCLFO 105 V1c 2
Features
Coarse and fine frequency controls
1 Volt / Octave CV
Sine, Triangle, Saw, Ramp and Pulse waveform outputs
CV control of pulse width modulation (PWM)
Panel control of pulse width
LED to indicate output voltage level which is especially important for very low
frequency settings
Kit Contents
Description
Reference
MOTM
Qty
MU
Qty
Notes
Components Kit
7216-105-1
1
1
See BOM
Accessories Pack including:
7216-105-2
1
1
Pot Sticky Pads
7210-188
3
3
10mm M4 Spacers
7210-186
4
4
M4 x 14 Cap Head Screws
7210-187
4
4
M3 x 8mm Stainless Panel Screws
7216-151
4
4
8-Pin IC Socket
7212-331
1
1
14-Pin IC Socket
7212-332
1
1
16-Pin IC Socket
7212-333
1
1
Power Lead
7216-164
1
MOTM Front Panel
7216-505
1
Black
MOTM Back Panel
7216-805
1
MU Front and Back Panel
7219-505
1
Main PCB
7216-005
1
1
Jack Socket PCB
7215-724
1
1
Jack Sockets
7216-607
1
1
Pack of 7
B100k Pots Long Shaft
7216-703
1
Pack of 3
B100k Pots Short Shaft
7216-733
1
Pack of 3
KM20B Knobs
7212-103
1
Pack of 3
MU Knobs
7219-103
1
Pack of 3
General Assembly Guidance
Booklet
1
1
Circuit Schematic
S-7216-005-c
1
1
BOM
S-7216-005-c
1
1
PCB Layout
S-7216-005-c
1
1

VCLFO 105 V1c 3
Assembly Instructions
The VCLFO module has no particular requirements not already covered in the ‘General
Guidance on a M²Synth Module Assembly’ booklet included with this kit.
Calibration
1. Apply 0V to the V/Oct CV input
2. Set fine pot to 50%
3. Coarse pot to give approximately 10Hz pulse output.
4. Use the fine pot to give exactly 10Hz
5. Apply an accurate 5V to the V/Oct CV input
6. Adjust trimmer P4 to give 320Hz
7. Repeat steps 1-6 until applying a 5V CV gives 320Hz without needing to adjust P4
Specification
Supply voltage +/-12Vdc
Supply current +16mA / -18mA
Waveform levels +/-5V
PWM CV range 0-10V
Frequency range: 0.04Hz to over 50Hz with no CV applied
Main PCB dimensions 43.5x108mm
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