Using The Fader Calibration Feature On Vi2/4/6 - SoundCraft Vi Series Quick Start Manual

Using the Fader Calibration feature on Vi2/4/6

The Fader Calibration facility has been available on Vi1 since that product started
shipping, but on the other Vi consoles it has only been possible up to now via a
specialist procedure and additional software.
From V4.5 onwards the Vi2/4/6 now also benefit from the ability to recalibrate faders
directly from the System-Desk menu.
The procedure for performing the calibration on Vi2.4.6 is slightly different from the
fully automatic one of Vi1, and it requires some manual intervention. Therefore
detailed instructions are provided below.
When is recalibration needed?
Under normal conditions, the faders of Vi2/4/6 will never need to be recalibrated.
There is no requirement to do this on a routine basis. The only times this will be
necessary will be either after the fader PCB has been replaced due to a fault, or
liquid has been splashed into the faders, in which case it will be obvious that
something is wrong with the behaviour of the faders.
The sign that faders need to be recalibrated will be either that paired channels or
busses exhibit a 'creeping' effect where the faders move slowly by themselves up or
down, or that the faders do not return to the same positions after changing layers
(this can also be confirmed by watching the numerical values of the Bus Master
faders which are displayed in the Control Bay (or upper Vistonics row on Vi1), whilst
changing output fader pages.
Instructions for Recalibrating the faders
1. Navigate to MENU-System-Desk and press the FADER CAL button on the
right hand side of the touchscreen. Answer YES to the warning dialogue box
(you will lose control of audio for the duration of the process).
2. Follow the instructions that are now displayed in the Short Chanel Label
displays – initially the faders will all move to the bottom of travel and the
instruction will say "Set all faders to minus infinity". Although the faders may
appear to already be at minus infinity, carefully move each fader knob so the
cursor line is aligned with the minus infinity mark on the fader scale.
3. When all faders have been set in this way (do not forget the Master and
Monitor faders in the Control Bay!), you will see a message in the Short Label
displays saying "Press Any Key to Continue" - press any of the ON buttons on
each Bay to start the lower end calibration process. The display will indicate
'Find Minimum Value' whilst this is happening,
4. When this has finished, the faders will all move to the top, and the message
will be displayed "Set All Faders to +10". Repeat the procedure of carefully
aligning the fader knob cursor with the +10 mark on the scale, and when you
see the message 'Press Any Key to Continue", press an ON button in each
bay to start the upper calibration. The displays will indicate 'Find Maximum
value' whilst this is happening.
5. When all bays have finished, the faders will return to their previous positions
and the calibration procedure is complete. The calibration will be permanently
stored the next time the console power is shut down.
Vi V4.5 Quickstart Guide.doc Page 18