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This section of the module can be divided into three areas :
•
Control Room Input Selection
•
Control Room Monitor Selection
•
Control Room Phones Selection
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Signals to be monitored by the CONTROL ROOM ( CR )
monitors or headphones are selected by using the buttons at the top of the
panel. They can be used to show any combination of the A output, the B
output, the External Input 1 or the External Input 2. When a red LED is
illuminated, it indicates that the signal is routed to the CR module.
External Inputs are normally used for monitoring the off-air
signal or another studio.
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Input to this section is derived from Control Room Input
Section at the top of the panel.
The CONTROL ROOM MONITOR section will affect the
output to any amplifier connected to the 1/4” jack CR monitor socket. The
output must be amplified in order to drive the CR speakers. The monitor level
can be adjusted by use of the level knob which alters the output between cut-
off, when set to 0, and unity gain 0dB, at 10.
With the AUTO PFL button depressed, the yellow LED
glows in the button and any channels set to PFL are automatically routed to
the CR monitors.
The Mute function operates, and the MUTE LED glows,
whenever a mic channel is used which has been designated to mute the CR
monitors ( See Section 2.3.8 ), i.e. a Control Room microphone. This is to
prevent feed-back. Two pairs of contacts on the Remote connector also close
whenever the Mute function operates, to control external equipment, or
lights.
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Input to this section is derived from Control Room Input
Section at the top of the panel.
The CONTROL ROOM PHONES section will affect the
output to any headphones connected to the 1/4” jack CR phones socket. The
phones level can be adjusted by use of the level knob which alters the output
between cut-off, when set to 0, and unity gain 0dB, at 10.
With the AUTO PFL button depressed, the yellow LED
glows in the button and any channels set to PFL are automatically routed to
the CR headphones, independently of the studio monitors.
The Control Room headphones have the additional facility
of SPLIT PFL - with this button selected, the main programme is fed to one
ear with the PFL signal fed to the other.