RANDOM*SOURCE
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4
Serge RING
Building
This is simply a suggestion - you might find a different workflow more practical:
1.
Use a side-cutter to separate main pcb and component pcb.
2.
Solder the power connector and other through-hole parts to the main pcb.
3.
Add the spacers to the panel pcb and install the pin (SIL) headers so that the 2 pcbs form a nice sandwich.
Pay
attention to the direction the pcbs are facing - the SMT parts have to be inside the sandwich
.
It is recommended to have the female headers on the panel pcb and the pins on the main pcb.
4.
If you have double-checked that the positioning is correct, solder the pins connecting the 2 pcbs.
5.
Carefully seperate the 2 pcbs again and mount the Thonkiconn jacks and the pots onto the panel pcb. Pots should
sit on the side facing the front panel (as marked on the board). Don‘t solder them in yet.
6.
Carefully mount the panel pcb (with the pots etc. inserted) onto the front panel. You may then have to wiggle each
pot a bit to get the pots through. Make sure the threads of the pots go through completely and the pots sit right at
the front panel. Screw the jacks and pots to the panel to make sure of that.
7.
Once everything is nicely in place, solder the pots and jacks (while the front panel is attached). Make sure you
don‘t spill any solder on the SMT parts.
8.
Mount the main pcb again and fasten it using the spacers.
9.
Connect a power cord sup12V, GND, GND, -12V to the power-header on the main board and double check
the direction of the power header before you turn power on.
10.
You should be ready to calibrate and go :-)
Optional: MODE knob taper adjustment
You might notice that depending on calibration the spot where the MODE knob reaches exactly the AM position
(before fading to Ring modulation) is slightly before the center of the knob. This does not affect the function in
any way - in particular not the VC MODE behavior) -, however, if that is the case and it bothers you, you can
adjust the knob curve (taper) by soldering a resistor (22k or 24k for a B50K pot should work) between the wiper
of the MODE pot and the GND pin like this:
