Division 6 Dual Mini User Manual

Dual Mini Synthesizer Build Instructions
Make sure you have everything before you start soldering!
1
Install Diode
What You’ll Need:
To make assembly easier, we’re going to install components from shortest to
tallest. This way when you ip the board over to solder them, your work
surface will hold them in place. Let’s start with the diode.
To prep the leads, hold the body of the diode and bend the two leads 90
degrees.
Insert the diode into the holes marked D9 on the main PCB. Polarity does
matter for diodes, so when you insert it into the board, make sure the black
stripe on the diode lines up with the stripe on the silkscreen pattern.
Bend the leads outward underneath the board to hold the diode in place.
Flip the board over, solder the diode leads, then trim them just above the
solder joint.
For a quick soldering tutorial, visit division-6.com/solder
·Dual Mini Synthesizer Kit · Soldering Iron · Solder · Wire Cutters · Small Phillips Screwdriver · 9mm Nut Driver
2
Install Resistors
Working one value at a time, prep the leads of the resistors like you did with
the diode.
Insert the resistors into their proper locations (see BOM). Polarity doesn’t
matter for resistors, but your board will look neater if you line up all the
tolerance bands (gold) the same direction. Bend the leads outward
underneath the board to hold the resistors in place.
Flip the board over, solder the resistor leads, then trim them just above the
solder joint.
3
Install Ceramic Capacitors
Install and solder C3-C6. Polarity doesn’t matter for these capacitors.
4
Install IC Sockets
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Polarity doesn’t matter
Polarity DOES matter
Continued...
Insert the IC sockets into the board. Note that one end of each socket has a
notch in it to indicate which end of the IC has pin 1. Make sure to align these
notches with the notches indicated on the silk screen pattern.
Flip the board over and solder one pin on each corner of both sockets. This
makes it easy to reposition the sockets in case they aren’t seated all the way
down against the board; just reheat the corner pins and adjust the socket
positions as necessary.
Once you are happy with the positioning of the sockets, solder the remaining
pins. The pins are short enough that they don’t need to be trimmed.

Division 6 Dual Mini Specifications

General

Type	Analog Synthesizer
Oscillators	2
Polyphony	Monophonic
Oscillators per voice	2
Waveforms	Sawtooth, Square
LFO	Triangle, Square
Audio Outputs	Mono, Stereo Headphone

Summary

Initial Component Installation

Install Diode

Install diode D9, ensuring correct polarity alignment and lead bending.

Install Resistors

Place resistors in their designated spots, aligning tolerance bands for neatness.

Install Ceramic Capacitors

Mount and solder ceramic capacitors C3-C6; polarity is not a concern.

Install IC Sockets

Insert and solder IC sockets, paying attention to pin 1 orientation for microcontrollers.

Install Key Components and Indicators

Install Regulator

Mount VR1, ensuring the flat side aligns with the silkscreen pattern before soldering.

Install Electrolytic Capacitors

Place C1, C2, C7, C8, ensuring correct (-) polarity alignment with PCB holes.

Install Power Connector

Insert P3, aligning the connector notch with the silkscreen pattern before soldering.

Install LEDs

Mount LEDs D1-D8 with spacers, paying close attention to polarity and alignment.

Install User Interface and Structural Parts

Install Buttons

Mount tact switches S1-S4, ensuring they are flat and straight, checking front panel alignment.

Install 3.5mm Jacks

Insert and solder jacks J1-J26, ensuring proper alignment and flatness with the front panel.

Install Pots

Mount potentiometers, noting the 1M/10k difference, ensuring alignment before soldering.

Attach Standoffs

Secure standoffs using screws to support the front panel structure.

Final Assembly and Power Up

Install Front Panel

Attach the front panel, securing jacks with hex nuts and screws into standoffs.

Install Microcontrollers

Insert microcontrollers U1/U2 into sockets, aligning pin 1 notches correctly.

Power Up and Testing

Connect power, verify LEDs blink, and test audio output with controls.

Troubleshooting

Diagnose common issues like no power, stuck LEDs, or poor solder joints.