On this page you’ll find frequently asked questions and per-product support.

Do you have a question about any of your Ginko Synthese products that’s not listed on this page? Don’t hesitate to contact me.

Grains (DIY kit)

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For PCB V2 (and up) this are the mappings of the inputs:

// Map Analogue channels
#define SYNC_CONTROL         (3)
#define SYNC_OFFSET         (0)
#define GRAIN_FREQ_CONTROL   (1)
#define GRAIN2_FREQ_CONTROL  (2)

CV in1 is routed via potentiometer 1 and safety diodes to Analog input 2,
CV in2 is routed via potentiometer 2 and safety diodes to Analog input 1,
CV in3 is routed directly to Analog input 3 via safety diodes,
Potentiometer 3 is routed directly to Analog input 0 with 5V on one side
of the potentiometer and ground on the other.


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What can I put in the CV input?

The module is protected for overload. So basicly you can put anything in the inputs.

The start point and end point only reacts on positive values between 0V and 5V.
If something is fed into the CV inputs of the start point and end point the knobs react as an attenuator. This means that the CV input does not do anything when the knobs are set fully counter clockwise.

The pitch will react on negative voltages too. The pitch CV input is mixed with the value from the pitch knob, so when the pitch knob is turned fully clockwise the pitch will only react on negative values from the CV input. When turned fully counter clockwise the pitch will only react on positive values.

The startpoint pot reacts weird!?

There are two "presets" for controlling the startpoint. If the "0-5V/V/oct switch" is set to V/oct the incoming cv is calculated for use with an external keyboard tuned to "C". All black keys are ignored and the potmeter will have a different curve than on 0-5V.

It does not sample!?

If you press "sample" it does not start recording and all LEDs light up. No panic! This means your clock is too slow to keep the recorded sample within the memory. To solve this simply speed up the clock a little.

I hear a lot of noise!?

Most probably you hear aliasing. Put a lowpass filter in front of the module and try again. Read more about aliasing on the product page.


Voltage Controlled Sequencer

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There is a way to add pots on the VCSQ! The way to do it is shown here (for more detailed info just email me):

Tap Tempo LFO

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Do I need +5V?

Yes, next to -/+12V the module also needs +5V. The power cable is Doepfer compatible.
.. +5V
.. +12V
.. GND
.. GND
.. GND
.. -12V

How do I attach the powercable?

On the new TTLFO's there is a red dot of paint on the lower side of the header, this is the -12V pin.
Always check that the red stripe on the powercable is going to -12v at both the module end and the power busboard end. Do not trust the keying on power supply headers, trust the red line and module markings only.

The output is distorted

There may be a problem with the ground.

The module doesn't work

Most probably you put the powercable upside down or you don't have 5V.
If you put the powercable upside down and powered up your modular, unfortunately the TTLFO chip will be burnt in most cases! Always check your powercables before powering up!
But if things went wrong you can always contact me.