Radio Systems Millenium-A Console Page 8
1.5.1 Input Assignment
Traditionally, commonly used inputs are assigned to input “A”. This gives the operator quick assurance of proper input
selection.
1.5.2 Mic Use
Mic channels should always be activated with the slider down, and then potted up to avoid a sudden “room rush” of
background sound.
Cue speaker muting is only provided when a mixing channel is turned “on”. Therefore, feedback can occur between the
cue speaker or the monitor speakers (if cue monitoring is selected) and a mic input if the mic channel is placed in cue.
To avoid this possibility, remove the cue inhibit jumpers on the section of the Six Channel Control Board associated with
the mic channel. This will prevent a mic channel from entering the cue mode and possibly cuing feedback. Consult the
Six Channel Control Board Section for details on programming information.
1.5.3 Cue Circuitry
Unless disallowed by jumper removal, all selected inputs maybe placed on the cue bus by depressing the cue button,
located above the fader. Refer to Section 2.2 for additional information.
The cue signal is monitored by the cue speaker, and level adjusted by the front panel cue level control. The cue speaker
is muted by any input that is turned “on” and that was pre-selected during installation to activate the Mute 1 control bus.
The internal cue speaker may be disconnected and a remote speaker connected in its place. Consult the Output Board
Section for detailed information on wiring.
In addition, the cue signal maybe selected for monitoring by the headphone or monitor amplier select switches.
1.5.4 Output Routing
Each mixing channel can be routed to any combination of program (PGM), audition (AUD), and tel (TEL) mix buses.
The program and audition buses provide identical stereo performance allowing the audition output to be used as a back
up to the program bus, as a separate program bus, or to preview or record material. The TEL bus is a monaural.
1.5.5 Mix-Minus
Talk show hybrid telephone patches frequently require a return feed to the caller that does not contain his own voice (mix
minus). To accomplish this, the host should be routed to PGM and TEL and the caller to PGM only. The TEL bus should
then be fed back to the telephone hybrid and program audio used to feed the air chain. To prevent feedback in this ap-
plication, the studio monitor speakers should not be used.
A “fold back” feed can also be created by feeding all microphone inputs into the PGM bus, and feeding all other inputs
to both PGM and AUD mix buses. Switch the monitor speakers to AUD and feed the air chain with PGM. In this applica-
tion the mic inputs need not mute the monitor speakers, as no feedback will result.
1.5.6 Monitor Amplier Input Select
The monitor input select switches on the right hand side of the console allow monitoring of PGM, AUD, TEL, cue and
four external stereo inputs which are common to the monitor and headphone circuitry. All monitor outputs follow these
switches. Level adjustment for the control room monitor output is provided on the front panel. In addition, the control
room monitor output is dimmed to an level which has been preset by a trimmer on the Output Board by the Mute 1 con-
trol bus. A studio monitor output which is muted by the Mute 2 bus, and an unmuted monitor output is also provided. In
addition, a prefader, unmuted monitor output is available.
1.5.7 Headphone Amplier Input Select
The headphone input select switches on the right hand side of the console allow monitoring of program, audition, tel, cue
and four external stereo inputs which are common to the headphone and monitor circuitry. All headphone outputs follow
these switches. Level adjustment and connection for the operator’s headphones are provided on the front panel. In ad-
dition, a pre-fader headphone output is available for driving an external headphone amplier.
