Using the MLC 52 VC Models with the MPA Series Power Amplifiers

The dedicated volume control knob on the MLC 52 IR VC or the MLC 52 RS VC controls the audio output of an Extron MPA 122 or MPA 181T power amplifier, to which speakers for the system are connected.

The following diagram shows an example of a system that uses an MLC 52 VC model with an MPA amplifier.

DVD

S-video with

Audio

VCR

Composite Video with Audio

PC

VGA with

Audio

Extron

MPA 122

Mini Power

Amplifier

 

 

 

 

 

 

 

PA

122

 

 

 

 

 

 

M

UTS

 

 

 

 

 

 

OU

TP

 

s

 

 

 

 

 

 

 

Ohm

 

 

 

 

 

 

 

4/8

 

 

 

 

 

 

US

 

 

OTE

 

 

 

 

 

 

TS

C

 

 

 

 

R

 

INPU

 

REM

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10V

UTE

 

 

 

 

 

 

 

R

V

OL/M

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

L

 

 

 

 

 

 

 

POW

ER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

MPA

Volume

Control

Switched

Audio

Output

RS-232

Projector Control

Projector

Extron

SI 26X

Ceiling Speakers (in parallel)

 

 

 

 

 

 

Y

 

 

 

 

 

 

IS

P

L

 

 

 

 

 

D

 

O

FF

 

 

 

 

 

 

 

 

 

O

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P

C

 

 

 

E

 

C

R

 

 

TO

 

LUM

 

V

 

 

 

A

 

E

 

VO

 

 

 

 

 

 

G

 

 

 

 

 

 

 

IMA

 

 

 

 

D

V

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LC

52

 

 

 

 

 

 

 

M

 

Extron

MLC 52 RS VC

Basic MediaLink Controller with IR or RS-232 Hardwired Projector Control

Application diagram using an MLC 52 VC with an MPA series power amplifier

Requirements for the MLC 52 VC with volume control knob

To set up and operate a system that contains an MLC 52 VC model, which has a volume control knob on the faceplate, and an Extron power amplifier, you must ensure that the following conditions are met:

The projector must have dedicated video and audio inputs for each source used in the system.

The projector must have a switched audio output. On most projectors, this connector is labeled as “Monitor Output” or “Audio Output,” as shown in the following illustration. With a switched audio output, the projector outputs the audio from the selected video source.

The system must incorporate an Extron MPA series power amplifier.

MLC 52 Series MediaLink Controllers • Operation 3-11

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Image 39
Extron electronic manual Requirements for the MLC 52 VC with volume control knob, Extron MPA