CTX Assembly Guide

For recommended tools and safety precautions, refer to the Colour Palette Assembly Guide.

Identify and Sort Components
Before you begin assembly, it's a good idea to download and print the CTX Component Sorting Sheet (PDF). Sort the components by laying them out according to the sheet.
1. Standoffs and Connector
Insert the nylon standoffs into the four mounting holes. You should feel them snap in by inserting the flat side of the standoff into the Colour PCB. The other side is more rounded, which will make it easier to remove the Colour from the pallet.
2. Solder Connector
Solder the 8-pin connector with the longer leads facing down.
3. Insert and Bend Resistor Leads
Bend the resistors and insert them into the corresponding holes shown on the silkscreen. Flip the PCB over and bend them against the holes in order to keep them in place before soldering.
4. Solder Resistors
Apply a small amount of solder while placing the tip where the lead meets the pad.
5. Trim Resistor Leads
Allow the new solder joints to cool for a few seconds and then trim the resistor leads as close as possible to the joints.
6. IC Socket and Capacitors
Insert the ceramic bypass capacitors CB1 and CB2. These components are non-polarized and as such have no correct orientation. Bend their leads to keep them in place. Next, insert the 8-pin socket for U1. U1 does have an orientation: align the notch on the body to the corresponding notch on the PCB legend. Hold the socket in place with your fingers or a piece of tape, flip the board over, and solder the capacitors and socket. Trim the capacitor leads as you did with the resistors. Note: We goofed and forgot to populate RLED when we took these pictures. Until we correct this, please ignore or mistake and populate RLED with all the other resistors.
7. Solder Transformer
Look closely at the transformer and find the four pins with small magnet wires attached to them. Insert the transformer into the PCB so that this row of pins faces the other components. The first of these wired pins will be inserted into the square pad on the PCB. If in doubt about the correct orientation, see the picture for the next step for reference. Flip the PCB over and solder in a 'zig-zag' fashion, alternating from one side to the other in order to prevent the transformer pins from overheating.
8. Insert IC
Finally, insert the IC into the socket. The TL071 IC's orientation is indicated by a circle next to pin one. Insert the IC with the circle facing the notch in the socket and PCB legend.
Congrats! Real, transformer sound is ready for your Palette. If for some reason your CTX isn't working, please submit a support request:

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