FORUM OPERATION AND MAINTENANCE MANUAL 9601
PAGE 57
The Stereo Master module contains the main stereo outputs, the
Auxiliary master outputs, the monitoring section, and talkback
microphone input. In addition, a BNC connector is provided for a
gooseneck light if the console is to be operated under low or poor
light conditions Pmaximum power 12 Volts, 5 watts). In consoles
where mute input modules are fitted the master module will also
have the master mute group switches located on it.
The main stereo outputs have delayed-turn-on circuitry to prevent
potential damage caused to speakers by transients. The stereo
outputs are electronically balanced, and may also be transformer
balanced as a cost option.
Insert points are provided in the stereo output signal and plugging
in the jack automatically breaks the normal signal path and inserts
the external equipment.
The Stereo Mix, Group, and Auxiliary outputs have a nominal
operating level of +4dBu, with the facility to interface at -10dBV.
All these main outputs may be fitted with transformers.
LED Metering
The two led bargraph meters follow under normal operating
conditions the output of the stereo mix. If any SOLO button is
pressed, they show the level of the soloíed signal, in mono.
SET 0
These sub-panel presets are used to calibrate the led meters for 0dB
signal.
AUX 1
This adjusts the master output level of the Auxiliary 1 bus.
AFL 1
Pressing the associated AFL button will send the auxiliary 1 signal,
at whatever level the master is set, to the main monitoring system,
overiding the stereo signal on the monitors, and meters. The main
stereo output is not affected.
AUX 2-6/AFL 2-6
The five other Auxiliary master level controls and associated AFL
button operate in the same way as the Aux 1 controls.
STEREO MASTER MODULE