RANDOM*SOURCE
3
Serge DUSG
Building
This is simply a suggestion - you might find a different workflow more practical:
1.
Mount the Banana jacks, the LED lens and the switch onto the front panel. If you use a retention
ring for the LED lens, attach the ring to the lens.
2.
Mount the pots onto the component pcb. Pots should sit on the printed side - this side faces the
front panel. Don‘t solder them in yet. Stick the LED into the component pcb - the long leg must be
at the + side.
3.
Carefully mount component pcb (with the pots and LED inserted) onto the front panel. First slide
/ push the LED into the LED lens - all the way, this may take a bit of force. You may then have to
wiggle each pot a bit to get the pots through. Make sure the threads of the pots go through com-
pletely and the pots sit right at the front panel. You can even screw the pots to the panel to make
sure of that, but you have to unscrew them again later (for Step 5).
4.
Once everything is nicely in place, especially the LED sitting inside (and not on top) of the LED
lens, solder the LED and the pots onto the component pcb (while the front panel is attached). DO
NOT SOLDER THE BANANA JACKS YET!
5.
Solder the through-hole parts onto the main board.
For the 3“ DUSG module, connect
Jumpers 1 and 3 on each side
(see picture on page 1) - for a 2“ DTG module, a different
jumper setting is required!
6.
Main pcb and component pcb are to be connected through precision DIP socket and pins. It is
recommended to use the pins on the main pcb (facing down, soldered from above) and the pin
sockets on the component 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 (component pcb). Solder all the pins in while keeping the sandwich to-
gether - this avoids any misalignments.
7.
Carefully separate the sandwich - if you used precision sockets, this may not to too easy - they
stick together nicely (giving a good connection).
8.
Mount the component pcb onto the front panel again and screw on the pots from the front side.
