RANDOM*SOURCE
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4
Serge
Slopes (DTG)
DSG mk2 Configuration
The DSG mk2 might be pre-configured to be used in a (full) DSG with separate control over Rise and Fall. This
is perfect for use in a 3” wide DSG, however,
to use the pcb in a 2” version, you (may) have to change this
setting:
SEParate control of Rise / Fall: two 0R resistors (SEP) act as links / jumpers and COM is open.
COMmon CV control: no SEP resistors installed and COM is linked with a 0R resistor (or jumpered).
For Slopes
(and all incarnations that have RISE / FALL / BOTH switches on both sides of the module)
both sides of the pcb have to be set to COMmon:
1.
Remove the two 0R (zero ohm) resistors
at the two spots marked
SEP
(left and right of
COM) - you can use one of them in the next step. (To remove an SMT resistor, use a fairly big blob
of solder on the tip of your iron to heat both sides of the resistor at the same time and push is out
quickly.)
2.
Set a jumper at COM
or solder in a 0R resistor onto the pads underneath the COM rectangle.
Building
This is simply a suggestion - you might find a different workflow more practical:
1.
Mount the Banana jacks, the LED lens and the switches onto the front panel. If you use retention
rings for the LED lenses, attach the ring to the lens. (
Do not mix up the switches!
)
2.
Screw (10mm) spacers to the panel pcb if desired - this is easiest done while the panel pcb is not
yet attached to the front panel.
3.
Main pcb and panel pcb are to be connected through precision DIP socket and pins. It is recom-
mended to use the pins on the main pcb (facing down, soldered from above) and the pin sockets
on the panel pcb (standing up, soldered from the front panel side). Break or cut off the pieces you
need and stick them together so that main pcb and component pcb form a nice sandwich (don‘t
solder yet). Check that you didn‘t leave out any pins / holes and that the sockets are all on the
same side (panel pcb). Also make sure the pcbs have the right orientation (so that the pots will
sit outside!). Solder all the pins in while keeping the sandwich together - this avoids any misalign-
ments.
4.
Carefully separate the sandwich - if you used precision sockets, this may not to too easy - they
stick together nicely (giving a good connection).
5.
Solder the LED trimpots or resistors onto the panel pcb. Solder short pieces of (stiff) wire - about
10mm long - into the pads for the switches. These should stick up in the air on the sidefacing the
main pcbs and should only go through the pcb as much as required to solder them in (i.e. should
not stick out much on the other side).
