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Operation, cont’d
MLC 52 Series MediaLink Controllers • Operation3-12
Wiring and connections for the MLC 52 VC models
Connect the cables to the MLC 52 IR VC or MLC 52 RS VC controller with the MPA
Series amplifier as shown in the diagram below and on page 2-15.
COMPUTER
OUT
AUDIO OUT
Projector
RS-232 or IR
Projector Control
Any input on the MPA
can be used.
To Loudspeakers
MPA 122
MLC 52 VC Series
P
R
/R-Y
P
B
/B-Y
REMOTE
AUDIO
AUDIO AUDIO
Y/C VIDEO
PC
R
R
L Y
G H/Cs
B V
RS-232
COMPUTER IN-2
CONTROL
COMPUTER IN-1 AV IN
Tx
IR OUT
GND
IR IN
GND
+ 12V
VOL/
MUTE
+ 10V
1
1
2
3
4
E
ON
2 3 4
POWER
12V
3A MAX
OUTPUTS
4/8 Ohms
INPUTS
L
R
L
R
REMOTE
10V
VOL/MUTE
L
MPA 122
R
C
C
US
US
Wiring an MLC 52 VC controller and an MPA series power amplifier to a
typical projector
Audio is now controlled from the MPA instead of from the projector. For best
results, ensure that the audio volume of the projector is set to maximum
(assuming that the monitor output for audio is variable).
Configuring the MLC 52 IR and MLC 52 RS Vol buttons
By default, the MLC 52 has two buttons on the front panel programmed for volume
control (Vol
>
and Vol
<
). However, on the MLC 52 IR and RS VC models, these
buttons are not needed for volume control and can be programmed for other uses.
To reprogram the Vol buttons, you can use IR learning (see “Configuring using IR
learning,” earlier in this chapter,) or the Windows-based configuration software
(see chapter 5, “Serial Communication”).
Powering the Display Device On and Off
The Display On and Off buttons on the MLC 52 front panel are used to turn the
projector or other display on and off.
Powering on
Press and release the MLC 52’s On button to turn the display device’s power on.
The MLC sends an RS-232 or IR power-on command to the projector, and the On
button blinks for 4 seconds, then remains steadily lit.