Mojo Maestro Assembly Guide

Safety Precautions, Warranty, and Disclaimer Improper soldering and handling of electricity can cause serious injury and damage to your property. Read and understand the instructions below before beginning your project. Follow the instructions, build carefully, and use the appropriate tools. Build at your own risk. DIY Recording Equipment, LLC is not responsible for any damage or injury resulting from the assembly or use of your kit. You are the manufacturer of your kit. It is your responsibility to turn this group of parts into a working piece of recording equipment. DIY Recording Equipment, LLC does not guarantee the success of your project and disclaims any Implied Warranty of Merchantability. Please visit the support forum for assembly support.
Damaged or Missing Parts All kits and parts are checked before being shipped to you. If something arrives damaged or if your kit is missing a part, please open a support ticket to inquire about a replacement. Missing parts will be replaced at our expense. Damaged parts should be returned for verification. If the part shows signs of use beyond what was necessary to determine that it was damaged, DIY Recording Equipment, LLC reserves the right not to replace the part.
Welcome to the Mojo Maestro Assembly Guide

Thank you for purchasing a Mojo Maestro Passive Clipping Colour!

If this is your first DIY project ever, we recommend reading our Getting Started Guide.

Table of Contents

Required Tools

You'll need the tools below to complete this build.

Soldering Iron
We recommend an adjustable-temperature station, such as the $40 Weller WLC100.

Solder
You can use 60/40 "leaded" solder or lead-free. We recommend 60/40 because it flows better and is easier for beginners to use.

Wire Cutters
You'll need a pair of good "snips" for cutting of the excess leads after soldering.

Optional Tools

These tools aren't strictly necessary but can make your build a bit easier.

Multi-Meter
If you find the color bands on resistors a bit hard to read, you can use a meter to sort them with absolute confidence.

Desoldering Pump
If you accidentally solder something in the wrong place, a desoldering pump can save the day.

Bag 1

Sort Components

Print the Mojo Maestro Component Sorting Sheet (PDF) to make identifying the parts easier.

Place Header

Place the shorter side of the 8-pin header through from the bottom of the PCB. Then solder the header in place.

Place IC Socket

Place the 8-pin socket in the IC1 position. Make sure to line up the notch in the plastic of the socket with the notch drawn on the PCB. Then flip the PCB over and solder the socket in place.

Bag 2

Place Resistors

Place the resistors in their respective places on the PCB. Note that R3 is actually 1.6k, not 1.5k as marked on the PCB. As you insert each resistor, bend its leads against the bottom of the PCB to keep it in place.

Solder Resistors

Solder the resistors to the PCB and trim their leads.

Bag 3

Place Bag 3

Place the parts in bag three, paying close attention to the polarity of C2 and D1, D2. C2's positive lead is longer, and the negative lead is indicated by a stripe on the body. Place C2 with the positive lead next to the "+" marking on the PCB. Place D1 and D2 with the stripes on their bodies matching the stripes on the PCB. Then solder and trim the parts.

Bag 4

Place IC

Place the IC in the socket so that the dot on the body of the IC is on the same side as the notch in the socket.

Final Checks

Before you wrap up, check the following things:

  • Capacitor orientation: Is the stripe on the cap on the opposite side from the "+" marking on the PCB?
  • IC orientation: Does the dot/notch on the IC align with the notches on the socket and PCB?
  • Diode orientation: Do the stripes on the diode match those on the PCB?
  • Soldering: Is every solder joint shiny and clean? If one is cloudy or misshapen, try reheating it for 8 seconds and adding a tiny bit more solder.
  • Trimming: Are all of the excess leads trimmed down as close to the joint as possible?

All good? Congrats on finishing your build! Have a question or problem? Drop us a line.

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