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Preamp
Overdrive Procedure ( aka the "crank" )
Version One (from Roland AU website) If
you have experienced unusual harmonic distortion when using the XLR or
1/4'' analog inputs 1-16 under normal conditions, use this procedure to
ensure optimal performance of the analog input preamps. Apply enough
input signal to the particular input preamp, until the LED Peak
Indicator lights (indicating clipping), and then to lower the input
signal to a nominal level below clipping. Please remember to turn power
off to monitor speakers or lower ALL output signals from the VS-2480
prior to performing this procedure to prevent possible speaker/headphone
damage or hearing discomfort. Audio signal must be present at the chosen
analog input(s) to successfully perform this procedure.
1. Power on the VS-2480, and load an existing Project or create a new
Project from the Project List.
2. Turn off any connected speakers or lower/mute ALL audio
outputs...Master Fader, Phones 1/2, Monitor Knob, AUX Send Masters,
Direct Outs, etc.
3. In the UTILITY:GLOBAL PARAMETER page(1), the PEAK INPUT LEVEL should
be changed to 0dB.
4. Insert an audio source into an XLR or 1/4'' input jack (i.e. A
microphone, keyboard, or guitar plugged into Input 1).
5. Verify that a moderate audio signal is being sent from the audio
source (i.e. Play the instrument or sing into the microphone).
6. Use the Sensitivity knob next to the input jack to adjust the amount
of incoming signal so that there is enough audio signal to clip the Peak
Indicator light for approximately 1-2 seconds, then adjust the
Sensitivity knob counterclockwise so that the incoming audio level is in
the normal input range of -12dB up to, but not exceeding 0dB.
This procedure should be repeated on any analog inputs used in the
current recording session. There is no need to repeat this procedure on
previously ''optimized'' inputs as long as the VS-2480 is powered On.
Version
Two - Falcon Eddy Crank
(Back
to Preamp Fix Page)
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RolandVS2480.net
~ Roland VS-2480 Tech Help Website
