Signals to be monitored by the studio monitors and / or headphones (see Jumper
J 1 and J 2 - par. 0) are selected by using the buttons at the top of the panel. They
can be used to select Master (MST) or Tuner sources, as well as PFL bus.
The PFL switch allows the normal monitor source to be interrupted and the PFL
signal monitored in its place.
In particular, when the PFL button in the Studio section is pressed but no PFL
signal comes from the input modules, the Studio outputs still reproduce Tuner or
Master signals. You may regard this as the PFL routing circuit being armed but not
active. To make it active, the PFL must be engaged in at least one of the input
modules.
The STUDIO rotary control will affect the output to any headphones connected to
the 1/4” jack STUDIO phones socket at the bottom of the module as well as the
Speaker/Headphones Studio output on the rear panel.
The CUT LED is lit whenever the mute function (on Studio speaker only) is active
(ref to MONO Module settings - par. 0) *. For normal Studio speaker operation the
mute LED must not be lit.
* Speakers full muting may be required when a “live” microphone is located in the
Studio.