Thank you for purcha ing GMLab Pico ynth! Whether you bought the kit
ver ion or the pre-a embled ver ion, plea e refer to thi document for
ba ic information and in truction . If you purcha ed the kit ver ion,
plea e refer to the full ver ion of the guide that you will find online,
here:
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Pico ynth i a ba ic monophonic ynthe izer, ea y to learn and to operate
with all the ection well defined by labeling . It al o have few nice
add-on like the pre et management and a delay ection. Two o cillator
with 5 waveform , L.F.O., filter, envelope, mixer and glide control.
If you are reading thi document or you purcha ed GMLab Pico ynth, you're
likely familiar with ynthe izer , you know how to operate them and how to
generate, manipulate and modify the ound.
No power upply unit i upplied with a KIT purcha e. GMLab Pico ynth
require a 12v DC 500mA minimum power upply in order to correctly
operate. The e are very common and it' likely that you already have one
compatible laying around omewhere. Ju t be ure that the DC male plug i
5.5/2.1 with the po itive in the central pin and the negative in the
external frame of the plug.
You can al o u e a power upply with le voltage (for example 9v) but
plea e don't u e the one for guitar pedal , they are normally with center
negative. You can al o power on your Pico ynth ju t connecting a MICRO-USB
cable into the Ra pberry PI PICO port but we won't ugge t to do thi for
a long period of time. U ing a different power ource that the one
ugge ted (12v DC) won't harm your in trument, unle you connect a power
upply with a voltage higher than 12v; but thi will affect the audio
quality becau e the operational amplifier circuitry u ed in thi project
i de igned around 12v DC for optimal performance.
GMLab Pico ynth i ending out mono audio from the headphone 3.5 jack
plug and the 6.3 jack plug: you can u e them at the ame time.
The MIDI connector of GMLab Pico ynth i a MIDI IN port, there you are
uppo ed to plug a device capable of ending MIDI, typically MIDI NOTE
ON/OFF me age . Plug there your MIDI keyboard, your computer or your
equencer. Pico ynth recognize MIDI data on CH1 and upport MIDI USB.
It recognize CC#1 (modulation wheel) and pitch bender, PC# from 0 to 31
and the "all note off" me age.
With the "+" and "-" pu hbutton you can croll the pre et , pre "STORE"
to ave a pre et (overwrite the exi ting one). To activate the "MANUAL"
mode pre the pu hbutton "+" and "-" at the ame time: when "MANUAL"
mode i engaged, the in trument will ound exactly re pecting the actual
potentiometer' po ition.
If you would like to revert to factory default (original pre et ), pre
and hold "-" with your Pico ynth off and connect the power upply.
GMLAB Pico ynth i old on-line on the web ite www.gmlab.it and on
www.MyRigShop.com by V.M.Connection, an enterpri e ba ed in Italy.
You can get the project file for thi and other GMLab project on our
GitHub account:
http ://github.com/ZioGuido
If you need pare part or blank PCB , ju t let u know.
All trademark mentioned in thi document belong to their re pective
owner and are u ed for reference purpo e only.
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