Adding headers to the back of the module

Hi! Is there anything to know when adding headers to the holes at the back of the module? I want to connect it to the ES-9 with jumper wires inside the case so i can control the midi from a computer without extra cable cluther. I’m experienced with soldering so i’m not expecting any complications on that side. I don’t have the module yet, just looking at the possibilities.
Thanks!

The test points at the back of the module have a direct electrical connection to the jacks at the top.
Please note the header is 1.27mm pitch, rather than the very common 2.54mm.

  • SP1, SP2, SP3, SP4 are the sample outputs (jack tip)
  • M1, M2, M3, M4 are the ‘mix’ inputs. When no jack is plugged into the output of a sample, is is normalled to the internal mixer. These test points have a direct electrical connection to the jack socket “normal” pin. So be careful if you plan on using these, as they are by default shorted to their corresponding sample output.
  • MIX is the mix output that you’d expect at the MIX jack.
  • INPUT is an additional mixer input. By default, it is connected to nothing.
  • M1, M2, M3, M4 and INPUT have an input impedance of 100KΩ
  • MIDI IN ‘DATA’ and ‘+’ are connected as follows:

  • Finally MIDI thru is just MIDI IN through a buffer IC.

Let me know if you have any more questions

Cheers

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Thanks for the detailed explanations, i think everything’s there!

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