Peavey V12 - Manual (Page 52)

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micro mute system
channel fader features
µ-button
This momentary switch is used to program the channel mutes when the Micro
is in EDIT Mode. Pressing this switch will assign/un-assign it to a mute scene
(either Sequenced or Manual), the internal yellow LED will blink to show an
assignment.The operator uses these blinking LEDs to review the mute pattern
being edited.These buttons are also used to send MIDI mute info when the
Micro is in normal operation mode and MIDI Mutes is ON (see Utility).
Pressing this switch sends a Note On/Off command that can be recorded on
an external MIDI sequencer. If a corresponding Note On/Off command is
received, the yellow LED lites up steady, and a mute command is issued to the
channel.
act LED (µ-mute)
This red LED lites whenever a Mute command is issued from the Micro.This
can be from any of the Sequenced or Manual Mute Scenes or from a received
MIDI Note command. Whether or not the channel responds to that mute
command is determined by the status of two SAFE switches: the global Input
Micro Safe switch (near master faders), or the channel Mute Safe switch.
mute safe
This switch "safes" the channel from external mute commands (micro,VCA,
SIP). By default, the VCA and Solo-In-Place (SIP) mute commands are safed, but
there are two jumpers located on each fader circuit board to exclude each of
them.The micro mute commands (Man Mute, Seq Scene or MIDI mutes) are
always affected by the safe.
act LED (VCA)
This red LED lights whenever a mute command is coming from an assigned
VCA. Each VCA Master has an associated Mute switch.When depressed, any
channels assigned to that VCA Master will go to a fader full-down condition
(max attenuation),and the channel mute will be activated.A jumper in the VCA
Master fader block can defeat the mute function; in that case, the channels still
go to fader full-down, but the channel mute is not activated.
VCA assign
These 12 lit switches are used to assign a channel to any of the 12 VCA
Masters.The channel gain is controlled by the sum of the voltages of the
local fader and any of the assigned VCA Masters.The VCA control circuitry is
designed so that even if a channel is assigned to all 12 masters, and those mas-
ters are all at +10dB boost (total of +120dB theoretical gain!), the local fader
(or any Master fader) , when pulled down, has enough electrical over-travel to
fully attenuate the channel. Furthermore, the control voltage is electrically lim-
ited to a maximum of +20dB gain to prevent excessive channel boost.
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