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Operations
The following paragraphs define matrix switcher terms and then detail the power-up process
and then provide sample procedures for creating ties, sets of ties, and configurations;
changing a configuration; viewing ties, sets of ties, and configurations; saving a preset;
recalling a preset; viewing and adjusting the audio level; and selecting the front panel
security lockout.
Definitions
The following Extron matrix switcher terms are used throughout this manual:
Tie — An input-to-output connection
Set of ties — An input tied to two or more outputs. (An output can never be tied to more
than one input.)
Configuration — Consists of one or more ties or one or more sets of ties
Current configuration — The configuration that is currently active in the switcher (also
called configuration 0)
Global memory preset — A configuration that has been stored. Sixteen global memory
presets can be stored in memory. The input and output buttons select preset memory
locations to load or retrieve. When a preset is retrieved from memory, it becomes the current
configuration. On each model, there are as many presets available from the front panel as
there are input and output buttons:
• The MVX 44 has 8 presets available on the front panel.
• The MVX 48 and MVX 84 have 12 presets available on the front panel.
• The MVX 88 has 16 presets available on the front panel.
On smaller MVX models, presets that are not available from the front panel are still
available under RS-232 or optional IR 501 control.
Powering up the Switcher
1. Plug in the switcher. On all switcher models, power is automatically applied when the
power cord is connected to an AC source. When AC power is applied, the switcher
performs a self-test and initialization that sequences the front panel LEDs on and off
from left to right. A successful power up self-test and initialization leaves the power LED
on, the Video and Audio LEDs on, and all other LEDs off.
The current configuration, all presets, and all input audio levels are saved in non-volatile
memory within 5 seconds of a change or exiting Audio Setup mode. When power is
applied, the most recent configuration is retrieved. The previous presets remain intact.
NOTE: Wait at least 5 seconds after changing any configuration, saving a preset,
or exiting Audio Setup mode. Before 5 seconds have elapsed, changes that
you have made may not have been saved.
If an error occurs during the self-test, the switcher locks up and does not operate. If your
switcher locks up on power-up, call the Extron S3 Sales and Technical Support Hotline.
See the last page of this guide for the phone number in your region of the world.
2. Plug in all system components and turn on the input devices (such as computers or
HDTV set-top boxes) and the output devices.
3. Set the input devices to output video using the operating instructions for each device.
4. Create a tie (see below). The selected input image should appear at the selected output.
If no image appears, see “Troubleshooting” on page 31.
MVX 44 / 48 / 84 / 88 VGA Matrix Switchers • Operation 12