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Euro-ADSR v1.2 – Assembly Guide
Thank you for purchasing this module! This is a reasonably simple build with a small number of
components.
The module is designed and sized for Eurorack systems. You will need a 16-10 pin eurorack power
ribbon connector with –12/0/+12 which is connected to a synth power supply.
Follow the parts lists, these instructions and the PCB silkscreen text to build the module.
The module consists of 1 PCB board and a front panel.
You may need to clean up the board edges with wire cutters and/or a file to remove the remains of
the tabs from the fabrication process. This is particularly important for the edges containing the
jacks. These edges will need to mate flush with the front panel.
You must follow the order of assembly as described below.
Page 1 of 12
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Summary of Contents for PMFoundations Euro-ADSR
- Page 1 Euro-ADSR v1.2 – Assembly Guide Thank you for purchasing this module! This is a reasonably simple build with a small number of components. The module is designed and sized for Eurorack systems. You will need a 16-10 pin eurorack power ribbon connector with –12/0/+12 which is connected to a synth power supply.
- Page 2 Constructing the board 1. Clean board edges with wire cutters and/or file to remove the manufacturing tabs. 2. Resistors Install the flat resistors on the TOP of the board. Solder and clip the leads. 3. Diode (not LED) Install the diode (but not the LED) on the TOP of the board. These are polarized components. Align the stripe on the diode with the stripe marked on the board.
- Page 3 4. IC Sockets Install the IC sockets. Observe the notch or mark on the sockets and align with the notch or mark on the board. Solder. Page 3 of 12...
- Page 4 5. Power socket Install the 10 pin power socket on the TOP of the board. The socket should be installed with the notch facing outwards from the board as shown in the photo. Solder. 6. Ceramic/film/polystyrene capacitors Install the ceramic/film capacitors. Solder and clip the leads. 7.
- Page 5 8. Trimmer resistors Now populate the trimmer pots on the PCB. Make sure they are oriented so that the screw is above the circle on the silk screen. 9. Potentiometers Page 5 of 12...
- Page 6 If the pots have positioning lugs on the front, cut these off with a sharp pair of flush cutting pliers. The front of the pot (where the shaft prtrudes) needs to be flat. Pots VR1, 2 and 4 are 1M, pot VR3 is 100k. Follow the markings on your actual board, they may be different to the ones shown in the photos.
- Page 7 10. 3.5mm Jack Sockets Install jacks. Tack one pin only with solder. These will be finalized later. Please ensure they are on the CORRECT SIDE OF THE BOARD. See Photo. 11. Alignment 1. Place a washer over each pot shaft. 2.
- Page 8 4. Now fully solder all the pins of each jack and pot. 12. LED Bend the pins of the LED as shown in the photo. The bend is at 6mm (1/4") from the underside of the LED. Note the location of the longest lead as shown in the photo. Install the LED loosely on the top of the board.
- Page 9 Page 9 of 12...
- Page 10 13. Do not install the ICs until the voltage tests are complete. 14. If you do not trust all your soldering and connections, carry out the voltage tests below before installing the ICs Page 10 of 12...
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Page 11: Voltage Tests
Voltage tests 1. You do not have to do these tests if you are completely happy with your soldering and are sure there are no bridges or incorrectly placed components. However, these tests will ensure that the correct power supplies are sent to the IC pins to ensure they will not be damaged on power 2. - Page 12 5. Install the knobs. 6. NOW READ THE USER GUIDE. Page 12 of 12...
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