BLACK NOISE QBI Manual

00
Introduction
QBI
Build instructions
01 Prepare the micro-switch #1
The micro-switches are designed to be soldered as a
through-hole component. Due to the space available
on the QBI PCB the micro-switch need to be
modified to by soldered as a SMD component. To do
so, you must bend the tabs outwards as in the
picture.
01
02 Prepare the micro-switch #2
Once the tabs are bended you need to
trim them to make the micro-switches fit
the width of the PCB. To do so cut all the
tabs to half there length.
QBI
Build instructions
Thank you for purchasing QBI module.
The idea behind QBI is to fulfill two fundamental functions when patching, duplicate a
signal and invert a signal.
These are two basic yet important and essential functions when patching.
But even though they are important, we wanted them to take up as little space as
possible.
00
Contents of kit
1- QBI PCB (SMD presoldered) x1
2- QBI Faceplate x1
3- Jack socket 3.5 mono x8
4- Micro switch x1
5- Micro Switch Caps x1
6- Power ribbon cable x1 optional
Sourced
BLACK NOISE warrants the contents of this kit to be free of defects in materials or workmanship
and to be conform with the specifications at the time of shipment for a period of two years from
the date of purchase.
We do not warrant, and we do not repair or take in modules to troubleshoot end-user DIY build
faults or second hand DIY products.
BLACK NOISE cannot be held responsible for any damage caused by one of our DIY kits and
resulting from an end-user DIY build faults.
If you encounter problems in the assembly you can contact us at:
[e-mail]
Warranty

QBI
Build instructions
03 Prepare the micro-switch #3
Once the tabs are trimmed, look under the
switch you will see a round mark. Pay
attention to this mark is important to
correctly place your switch on the PCB.
02
04 Prepare the jack socket
Due to the limited space on the PCB, one
of the jack connectors must be modified.
Take one of the jack connectors provided
in the kit and bend the middle tab as
shown in the picture. When bended the
tab should be flush with the connector
body.
QBI
Build instructions
05 Place the jack connectors
Place the jack connectors on the PCB.
Make sure to place the connector
modified during the previous step at
location Bas shown in the picture.
03
06 Place the micro-switch
Position the micro-switch on the PCB.
Make sure the round mark below the
switch is positioned towards the bottom
of the PCB as shown in the picture.
Warning
Don't cut the tab! If you cut the tab, it
could scratch the PCB and cause
problems.
B
A
A

QBI
Build instructions
07 Place the faceplate
Place the faceplate and screw the nuts on
the jack connectors.
04
08 Solder micro switch #1
To immobilize the micro-switch solder
one of the tabs. Make sure all the tabs are
properly aligned against the pads before
soldering.
QBI
Build instructions
09
Solder micro switch #1
To ensure that the micro-switch is
correctly aligned, solder the tab opposite
to the first soldered as shown in the
image below. Once its two tabs are
soldered, you can solder the remaining
tabs.
05
10 Solder the jack connectors
Once all the micro-switch tabs are
soldered, you can turn the PCB over and
solder the jack connectors. Make sure the
connectors are flush against the PCB
before soldering them.
Once all the components are soldered,
check the PCB to avoid any unsoldered
pads, solder-bridges etc.

QBI
Build instructions
11 Check your module
Set your multimeter to "continuity",
connect one of the probe to one the the
ground pin. Test +12V and -12V pins with
the other probe.
your multimeter should not ring, if it rings
there is a short.
06
12 Clean your module
Clean the PCB of flux and solder residue
using Isopropyl alcohol.
QBI
Build instructions
13 Test your QBI
For more information on connecting to
your rack and the possibilities of your QBI
consult the user manual accessible by
scanning the QR code.
07
Scan the QR code
to access the user
manual