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MLA-VC10 • Quick Start Guide
Quick Start Guide — MLA-VC10, cont’d
MLA-VC10 • Table of Contents
Chapter 1 • Introduction .......................................................... 1-1
About the MLA-VC10 ........................................................... 1-2
Chapter 2 • Installation and Setup ................................... 2-1
Front and Rear Panel Features ....................................... 2-2
Determining the Control Voltage ................................. 2-3
Measuring voltage for a TOA A-903MK2 amplifier ............ 2-4
Measuring voltage for a Peavey UMA
™
35T II amplifier ..... 2-5
Measuring voltage for a
Biamp Precedence CMA 60 amplifier ................................... 2-6
Setting the Configuration DIP Switches ................... 2-7
Cabling ........................................................................................ 2-9
Wiring the MLC/Power connector ...................................... 2-10
Wiring the Amp/Mixer Control connector ......................... 2-11
Operation ................................................................................. 2-12
RS-232 control ...................................................................... 2-12
Command/response table for SIS commands..................... 2-14
Troubleshooting ................................................................... 2-15
Appendix A • Specifications, Part Numbers,
and Accessories.............................................................................. A-1
Specifications ......................................................................... A-2
Included Parts ......................................................................... A-2
Cables ......................................................................................... A-2
MLA-VC10 Functional Block Diagram ........................ A-3
Table of Contents
68-690-01 Rev. A
Printed in the USA
07 02
All trademarks mentioned in this manual are the properties of their respective owners.
Step 5
Connect the power cables to a power source and power on the
equipment (MLC/power supply, RS-232 host device, and amplifier
or mixer).
Step 6
If you are using an MLC with the MLA-VC10, use the
Controller (MLC) Config portion of the
MediaLink control software (included with the
MLC) to set the MLC’s volume control to
“Switcher” instead of “Projector”. Refer to the
MediaLink Controllers User’s Manual for details.
Step 7
Test the system by turning the volume knob on the MLC or by
sending a volume-related RS-232 command while listening for a
change in the volume level and observing the MLA-VC10’s LED
(which should blink).
Step 8
If wiring changes are needed, turn off the power and unplug the
equipment, make any necessary wiring changes, then restore power
to the system.
In some applications the amplifier’s front panel volume control
knob may be disabled when the MLA is attached to the
amplifier’s control port.
QS-2 i
MLA-VC10
POWER/
STATUS
A B
MLA-VC10
Front Panel
MLC 206
Bottom Panel
MLC/RS-232
POWER
NOTE
The external power supply
provides power to both the
MLA-VC10 and the MLC.
NOTE
If you use cable
that has a drain
wire, tie the drain
wire to ground at
both ends.
To connect a
computer or
third party
control system,
see page 2-9.
+12VDC
Ground ( )
ABCDEABC
IR
Display/Source Control
Extron Switcher Control
Relays IR/RCM
RS-232
DE ABC ABD
1A1B2A 2B 3A3B
123456
Tally Out
MLS
/Power
33-644-01 A
07 01
Printed in the
USA
Ground ( )
+12VDC
Transmit (Tx)
B
Receive (Rx)
A
Transmit (Tx)
Receive (Rx)
+12VDC
Ground ( )
B
A
Ground all devices
An external
power supply
(12VDC,
1A max.)
White or
white-striped
wire