Radio Systems Millenium-D, Инструкция по установке и эксплуатации

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Radio Systems Millenium-D Digital Console Page 39
Illustration E-3
DA Mixer Card
Description
This optional, compact circuit card installs internally in Millenium consoles and may be connected to any console
audio output(s) to distribute signal to multiple sources. The card features bridging inputs, low impedance outputs, and
independent level adjusts for each output.
Installation
Use the plastic pins supplied to mount the circuit card on any free slot on the console inside rear wall. Supply DC
power via the three wire cable from any auxiliary DC output connector on any lower console circuit board. The second
DC connecter can be used to supply DC to power additional console option boards.
Applications
Use the DA/MIXER to distribute program or audition audio, create a mono program blend or a “mix-minus” feed of
multiple signals. On analog Millenium consoles, the DA/MIXER may also be wired to loop through channel patch points
(while leaving the loop-through jumpers in place) to “pick-off” and distribute individual channel audio. The DA/MIXER,
used in this application, will balance and buffer the audio, maintaining the integrity of channel audio as it exits the con-
sole.
Each of the 8 outputs can be jumper programmed to deliver one or any mix of the 4 inputs. Thereby, multiple stereo
outputs can be created by jumpering one input to multiple outputs. A mono mix of stereo inputs can be created by
jumpering a signal output to multiple inputs. A “mix-minus” output can be created by jumpering one input to multiple
outputs with additional inputs to the same outputs.
When ordered with the console, this optional board will normally be factory installed and operational. For field instal-
lation, use the four plastic standoffs provided to mount the board on the inside rear console wall near the associated
input or output. Connect the 3-pin power connector to any available 3-pin power port (+/-15v DC & Ground), on any
lower console circuit board.
+1 -1 -2 +2
A + A - B - B + C + C - D - D +
E+ E- F- F+ G + G - G
nd
H - H +
+3 -3 -4 +4
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
J4 J2
J1 J3
Pot H Pot G Pot F Pot E Pot D Pot C Pot B Pot A
O ut A O ut B O ut C O ut D O ut E O ut F O ut G
V
R
1
JU
1
JU
2
JU
3
JU
4
JU
5
JU
6
JU
7
JU
8
V
R
2
V
R
3
V
R
4
V
R
5
V
R
6
V
R
7
V
R
8
+ - Gn d
Gn d
J6
+/- 15vDC
+ -
J5
+/- 15vDC
G
nd
G
nd
G
nd
G
nd
G
nd
Balanced bridging audio inputs 1-4
(2 stereo or 4 mono inputs)
Output channel jumper programming (see rear
for programming examples)
DC power input connecter and bridging output
connecter
(use either connector)
Output level sets for outputs A-H
(factory default setting is unity gain)
Balanced low impedence audio outputs A-H
(4 stereo or 8 mono outputs)