Grass Valley M-2100 - Manual (Page 71)

MMCP Installation/Operation Manual 2-47
Audio Controls and Operation
button will flash. Also note that phase invert is effective only in Stereo
mode, so selection of L-Mono or R-Mono will result in only that lamp tally
and no phase inversion.
The selection made by the button push is made on button release in order
to allow level adjustments to be made. If a level adjustment is made, the
left/right selection does not change when the button(s) is released. The
button tallies do not change when the buttons are pushed, only when they
are released.
Regardless of the state of the two buttons—pressing and releasing either
the
Left or Right buttons on either the Program or Preset buses, (and not per-
forming a level adjust while one is being pressed and held), enables only
that channel (L-Mono or R-Mono mode).
Simultaneously pressing and releasing both buttons on either Preset or
Program buses, (and not performing a level adjust) selects Stereo mode for
the selected audio processor, and both buttons high tally.
PGM Level and PST Level Controls
The PGM Level and PST Level knob controls ( Figure 2-13 on page 2-41 ) must
be enabled for the Program and Preset bus separately in Configuration
Manager using the
Trim/Level Enable function in Audio Controls section of the
MMCP form. Refer to the M–2100 Installation and Service Manual for com-
plete details.
If PGM Trim/Level is enabled, the PGM Level knob (and Ratio knob for the
Program source if an Over is selected) is enabled. PST Trim/Level enables
adjustments using the PST Level control. There is a level setting associated
with each source on each bus, including the Only sources.
Note If one of the level controls has not been enabled, turning it will result in a
chirping sound, indicating it is not functional.
If an Over source is selected on a bus, that bus’ level and Left/Right buttons
are delegated to the Over source.
If either Left or Right buttons of either Preset or Program subgroup are
pressed and held, and Trim/Level is enabled for this bus, adjustment of the
Level control knob for the selected channel of the delegated Audio Pro-
cessor is enabled. This adjustment affects only the indicated left or right
channel of the delegated Audio Processor. Note that the
Left or Right buttons
do not tally when pressed unless they were already on, since their tally
changes (if it changes at all) only when released.
If Trim/Level is enabled for this bus, regardless of the states of the Left and
Right buttons, the PGM or PST level control is active and adjusts the level of
both the left and right channels equally. Pressing and holding both the Left
and Right buttons simultaneously, regardless of the previous state of the
buttons, enables adjustment of both the left and right channels equally.