Roland M-200i V-mixer Owner's Manual page 114

System settings
Fader calibration
If the fader positions are no longer aligned with the index
markings of the top panel, you can use the Fader Calibration
function to correct the misalignment.
1.
Hold down [SETUP] in the DISPLAY section and turn on
the power to the M-200i.
2.
Select "FADER CALIBRATION" and press [ENTER].
The FADER CALIBRATION screen appears.
3.
Move all faders to 10dB (all the way up).
Pressing [ENTER].
4.
Move all faders to 0dB.
Pressing [ENTER].
5.
Move all faders to -20dB.
Pressing [ENTER].
6.
Move all faders to -Inf dB (all the way down).
Pressing [ENTER].
The fader positions are set as you did in steps 3 through 6.
The calibration will be cancelled if you press [EXIT] during
steps 3 through 6.
If the relationship of -Inf dB < -20 dB < 0 dB < 10 dB is not
maintained, the fader settings are ignored.
114
Clearing Fader calibration
This clears the calibration setting of all faders.
1.
Hold down [SETUP] in the DISPLAY section and turn on
the power to the M-200i.
The M-200i starts up in SYSTEM CONFIG MODE, and the
SYSTEM CONFIG screen appears.
2.
Select "CLEAR FADER CALIBRATION" and press [ENTER].
A message will ask you to confirm the operation.
3.
Press [ENTER].
The operation will start.
Pressing [EXIT] will cancel operation.