Levinson Rev. 3
Parts List
Here's a list of parts needed for the build:
2 Pro Micro-compatible Microcontrollers (you may mix-and-match controllers)
46-48 switches (MX-compatible, Alps, and Choc switches are supported)
Optional parts (not shown)
2u PCB mount MX stabilizers if using 2u keys
Build Steps
Here's a summary of the build steps:
Prepare components
Solder components
Solder diodes
Solder push button and TRRS jack
Solder I2C resistors (optional)
Solder LED components (transistor and resistors) (optional)
Solder Pro Micro header pins
Add 2u stabilizers to PCB (optional)
Add switches to switch plate
Solder switches
Solder in-switch LEDs (optional)
Note: For Choc switches or Kailh Box switches, LEDs must be installed before the switches.
Flash Pro Micros
Solder Pro Micros
Solder RGB strip (optional)
Assemble case
Insert standoffs into middle layer (optional)
Screw standoffs into switch plate
Attach bottom plate using screws
Prepare components
Bend the diodes, first technique, bend them around your finger:
Second technique for bending diodes is to do it around a stack of plates:
Strip of diodes bent now:
Ripping off the paper holding all the resistors together. Grip the diodes tightly so they don't bend as you're ripping the paper off.
All separated from the paper, ready for insertion into PCB:
Solder Components
The diodes, resistors, transistors, push buttons, TRRS jacks, and Pro Micro header pins can be soldered in any order.
Add diodes
Sticking the diodes on the top side of the PCB is not recommended, because you can't replace them once everything is assembled using that method.
Add I2C resistors (optional)
Add TRRS jack and reset button
Add LED support components (optional)
Add Pro Micro header pins
Standard installation of Pro Micro with header pins
Don't solder on the Pro Micro yet.
Installation of Peel-A-Way sockets (optional)
Add 2u stabilizers to PCB (optional)
Add switches to switch plate and solder
:::caution For Kailh Box and Kailh Choc Switches - Install LEDs before this step For Kailh Box and Kailh Choc switches, there is no cutout to insert in-switch LEDs through, so the LEDs must be added first. Skip to the LED installation step and then come back to this step of switch installation. :::
Solder in-switch LEDs (optional)
Flash Pro Micros
Flash both of the Pro Micros before soldering them to the board to ensure that they work properly.
Solder Pro Micros
Standard Installation
Installation with Peel-A-Way sockets (optional)
Solder RGB strip (Optional)
See the Adding RGB Underglow Guide
Assemble case
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