Aion Electronics Blueshift Chorus Manuel - Page 16
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General Build Instructions
Build Order
When putting together the PCB, it's recommended that you do not yet solder any of the enclosure-mounted
control components (switches) to the board. Instead, follow this build order:
1.
Attach the audio jacks, DC jack and footswitch to the enclosure.
Remove all nuts and washers from the toggle switches. For each of the switches, thread three nuts
2.
firmly onto the shaft as far down as they'll go. The additional nuts serve as spacers so that the PCB is
mounted at the correct height.
3.
Firmly attach each of the toggle switches to the enclosure, taking care that they are aligned and straight.
Push the LED
4.
into the hole in the enclosure with the leads sticking straight up, ensuring that the flat side
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is oriented according to the silkscreen on the PCB.
Attach the hex standoff to the enclosure using a screw from the outside. If you have a countersink drill
5.
bit, you can countersink the hole from the outside and use the flat-head screw so that it's level with the
enclosure. Otherwise, use a pan-head screw here.
6.
Ensure that the bottom (clock) PCB has the female header sockets soldered in place and that they are
at a straight 90° from the PCB. Fit this PCB onto the toggle switches as well as the hex standoff and the
leads of the LED. Use a 6-32 x 3/8" panhead screw to attach the PCB to the standoff. The PCB should
rest just slightly above the flat base of the toggle switches, but below the top of the lugs. If it doesn't fit, or
if you need to bend things more than you think you should, double-check the alignment of the switches.
Once you feel good about everything, solder the toggle switches from the top.
7.
place inside the enclosure, there is no stress on the solder joints from slight misalignments that do not
fit the drilled holes. You can still take it out easily if the build needs to be debugged, but now the PCB is
"custom-fit" to that particular enclosure.
8.
Wire everything on the bottom PCB according to the wiring diagram.
9.
On the top (signal) PCB, it's easiest if you do not yet solder the male header pins. Instead, attach the
header pins to the female sockets of the lower PCB. Then, put the top PCB in place, fitting the header
pins inside the proper holes, and solder them in place. Once again, this helps "custom fit" the pins
together so that there is no stress on the solder joints from slight misalignments.
10. Wire everything on the top PCB according to the wiring diagram on the last page.
For the LED: You can use a bezel if you'd like, but generally it's easier just to drill the proper size of hole
1
and push the LED through so it fits snugly. If you solder it directly to the PCB, it'll stay put even if the hole is
slightly too big. Make absolutely sure the LED is oriented correctly (the flat side matches the silk screen) before
soldering, as it'll be a pain to fix later! After it's soldered, clip off the excess length of the leads from the top.
Note on soldering the toggle switches: It will require a good amount of solder to fill the pads. Try to be as
2
quick as possible to avoid melting the lugs, and be prepared to feed a lot of solder as soon as the solder starts
to melt. I recommend waiting 20-30 seconds between soldering each lug to give it time to cool down.
Sockets
Since double-sided boards can be very frustrating to desolder, especially components with more than 2
leads, it is recommended to use sockets for all ICs. It may save you a lot of headaches later on. This PCB is
particularly difficult since the pad, hole and trace sizes are smaller than most other DIY projects.
BLUESHIFT CHORUS / BOSS DC-2 DIMENSION C
By soldering them in
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