Audio Configuration - Extron electronics MLS 304MA User Manual

Quick Start — MLS 304MA, MLS 406, MLS 406MA, cont'd
Step 8
Connect all the devices' power cords, and power
on the system.
Video Configuration
Step 1
Via RS-232, configure the MLS: select the video
type for 15-pin HD inputs; See chapters 2,
Installation and 4, Serial Communication.
Step 2
Select a Monitor Output mode via the control
software. See Monitor Output Modes on page 3-7
and chapter 4, Serial Communication.

Audio Configuration

Step 1
For the Lineout and Preamp outputs, select mono
or stereo audio, and select -10 dBV (unbalanced)
or +4 dBu (balanced) via RS-232 control.
Default: -10 dBV.
Step 2
Via RS-232, set Aux/Mix to on
or off. If the Aux/Mix input will
be used, use a small screwdriver to
adjust the Aux/Mix input level.
Step 3
Disconnect audio output devices.
Step 4
Select an input and set audio input sensitivities.
N Audio input sensitivity levels must be
adjusted with an active audio signal.
Mono Amplified Output
Projector
Speakers
Extron
MLS 406MA
MediaLink Switcher
DVD
4a. Enter setup mode: press and hold an in-
4b. Adjust audio levels: while still holding the
MLS 304MA, MLS 406MA, MLS 304SA, and
MLS 406SA (amplified models)
MAX
MID
MIN
MLS 406 (nonamplified model)
-10 dBV
sensitivity
MAX
MID
MIN
4c. Release the input button to save the setting
4d. Repeat steps 4a through 4c for each input.
Step 5
Reconnect the output devices, and via RS-232
set the global treble and bass levels and turn on
loudness control, if desired.
Projector Control
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1.0
VCR Document Camera
put button for 3 seconds. The input's LED
blinks.
input button, rotate the Volume knob until
the Mid/normal LED lights or blinks.
Clip: a blinking/lit LED indicates that the
level is set too high.
Normal: a blinking LED indicates that the level
is set properly for maximum power output.
Signal: when lit, this indicates that a signal of at
least -20 dBV (-18 dBu) is detected at the input.
NOTE
Increasing the audio level beyond the point at
which the Mid/normal LED blinks may result in
a distorted output signal.
NOTE
In setup mode a blinking or lit Mid/normal LED
indicates that the power amplifier is capable of
delivering maximum power output.
NOTE
You may not need to adjust the per-input gain,
because the default input gain adjustment is set
for consumer audio sources such as VCRs, DVD
players, and laptop computers.
Peak: if blinking/lit, the level is set too high.
Normal: if blinking/lit, the output level at the
Lineout and Preamp connectors is near the
specified output level of -10 dBV or +4 dBu.
Signal: when lit, this indicates that a signal of at
least -20 dBV (-18 dBu) is detected at the input.
for that input.
Extron or
MediaLink
Controller
Laptop
w/ Audio
PC
System
Control