• IO Board PCB silkscreen

• IO Board parts list

Let's continue with the IO board section. First add resistors. Do not pay attention of resistors type on the picture you certainly have different resistors.

Add film capacitors

Add the diode. Diodes are polarized, the black ring must match the symbol silkscreened on the PCB.

Now, add the trig out transistor. Pay attention! This is a 2N3906.

Add Din connectors and 6.35mm jacks.

Now, check io board section power voltages and add the 6N138. Do not overheat ICs pins during solder process!

Now this is the part of the assembly that i definitly hate: DO WIRES. You must crimp 26 pcs of wire :(

Solder wires respecting the way. Cable housing connectors Pin1 must match Pin1 silkscreened on IO board.

Then io board section is finished, let's go to the Master section.