This is the assembly guide for the MRG FOLD Full DIY Kit with presoldered board. If you have a bare board, check the
MRG FOLD Bare PCB Assembly Guide
Its build should be considered of medium difficulty given the
number of components and steps required.
Theory of operation:
- If you bought the PCB+Panel only, acquire needed components (See
Bill of Materials
. All components used in this guide are already included in the full DIY kit.
- Build the Main PCB.
- Build the Front PCB.
- Install the front panel.
Main PCB build
Step A1. Solder the IC sockets.
Step A2. Solder the two voltage regulators.
Step A3. Solder the 10-pin header Eurorack connector.
Step A4. Solder the two 22uF electrolytic capacitors.
Everything apart from the two 14-pin headers are soldered on the board now. It is time to solder the front PCB.
Front PCB Build
Step C1. Check the alignment of the PCB (label U1 is the top row), arrange the jack sockets and the potentiometers.
Step C2. Solder the components. Tip: in order to be sure to align the components to the front panel, install the front panel as in photo below and solder the components on the back.
Step C3. Solder the socket headers. Tip: In order to align the Main PCB’s pin headers to the Front PCB’s socket headers, assemble the two PCBs together, as in picture, and solder them in place.
Congratulations! The build is nearly done. All that’s left is installing the front panel.
Final Module Assembly
All that’s left now is to install the front panel, using nuts and washers to keep it attached, and adding the knobs to the potentiometers.