Muting System; Insert Point - SoundCraft SM12 User Manual

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The signal in the module is turned on and off by the CUT switch and by the
1 MUTE buses (see below).
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An integral red LED in the CUT switch indicates when the signal is cut.
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The Post-fader signal level is controlled by a 100mm FADER before being
fed to the Groups and the Stereo Mix buses.
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The red PEAK LED illuminates when the signal level is within 6dB of
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clipping at the output of the input amp (after the high-pass filter), the output of the
EQ or the post-fader amplifier.
A three colour, 8-segment bargraph meter beside the fader meters the signal directly
after the input amplifier. The meter has a peak-reading characteristic.
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Muting System

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Each Input module is assigned to the four mute buses using the MUTE 1 - 4
buttons. The module is assigned to its respective mute bus when each switch is
pressed.
Pressing the SAFE switch isolates the module from the effect of the Master Mutes,
and reinstates the previous mute selection when released.
When the module is muted by any of the mute buses, the LED in the CUT switch
illuminates.
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PFL
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The electronically latching PFL switch feeds the pre-fade, pre-mute signal to
the PFL bus, which in turn feeds the engineer's wedge speakers and phones outputs
via the Master section. An integral amber LED indicates when the PFL switch is
active.

Insert Point

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The module insert point uses a balanced send and a balanced return, at a nominal
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level of +4dBu. The signal is accessible via separate 1/4" jacks on the rear connector
panel.
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The insert point may be set to pre- or post-EQ by push-on jumpers. The factory
default is pre-EQ.
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Input Module