Befaco STMIX 1U Assembly Manual

STMIX 1U - ASSEMBLY GUIDE – Rev. Mar 2023
THANKS FOR CHOOSING ONE OF OUR KITS!
This assembly guide has been designed taking into account the common issues that we often find people experience in
our workshops. The order in which the components are placed on the board is meant to make assembly as easy as
possible.
Some steps are not obvious, so even if you're an experienced DIYer, please take the time to read the steps thoroughly
before starting.
If this is your first project, please read this article before you start assembling the kit:
www.befaco.org/howto/
GOOD LUCK!

IDC CONNECTOR

Solder the IDC connector at bottom face of the board. Orientation is marked by the notch on silskreen, also the small
arrow on the connector must be on the side with the thick white line or a arrow.
Qty PINs
1 2x3
Front Panel COMPONENTS MOUNTING TIPS:
Now we will proceed to mount the jacks, LEDs and potentiometers. This part of the assembly is CRITICAL. Please take
your time and read the instructions carefully.
These components must NOT be soldered until they are placed on the PCB and fully attached to the front panel.
There are two reasons for this:
The height of the panel components are not all the same. Because of this, if not attached properly before
soldering, they will not stay properly seated against the panel. This might cause mechanical stress reducing their
life expectancy and in the worst case cause them to break.
The second reason is that it is very difficult to align the components to the holes if the panel is not positioned
prior to soldering. In the case of the LEDs, they are almost impossible to set to the correct height without
reference to the front panel.

MINI-JACKS

Place all the mini-jacks onto the PCB ensuring they are on the silkscreen side, but don't solder yet.

POTENTIOMETERS

Now place the potentiometers on the PCB but... don't solder it yet!
Qty Type
4 Dual 100k
Name on PCB
X1
Name on PCB
GAIN_1, GAIN_2, GAIN_3, GAIN_4
1