Extron electronics MPX 423 A Instrucciones de operaciones descargar pdf (Pagina 19)

MPX 423 A • Operation

3-3

Composite video input — Buttons 5 through 8 select the input for the

composite video sections of the MPX unit. The LEDs adjacent to each button

(when lit) indicate which input has been selected for output.

S-video input — Buttons 9 through 12 select the input for the S-video group

of the MPX unit. The LEDs adjacent to each button (when lit) indicate which

input has been selected for output 1.

Audio mute — This button mutes audio output 1. The LED (when lit)

indicates that audio output 1 is muted.

Audio volume — This adjustment knob controls the volume of audio

output 1.

Switcher Modes and Operation

Figure 3-2 — MPX 423 A matrix switcher front panel

Introduction to Single Switcher mode

In Single Switcher mode, the switcher emulates 1 output switcher with 12 inputs.

When a video input signal is tied to an output, it is routed to the same video signal

format. All other video output signals are muted.

The audio operates independently as a 12 inputs to 2 outputs matrix switcher. See

Audio later in this chapter for more information.

Both outputs can be configured in Single Switcher mode; i.e., the unit

emulates two 1 output switchers with 12 inputs each.

Introduction to Separate Switcher mode

In Separate Switcher mode the switcher emulates three 1 output switchers with 4

inputs. There are three input selection groups on the front panel: Computer, Video

(composite), and S-video. These three groups operate independently from each

other, and each of the twelve inputs can only be routed to its own video output

format group.

The audio operates independently as a 12 inputs to 2 outputs matrix switcher.

Both outputs can be configured in Separate mode; i.e., the unit emulates three

2 output switchers with 4 inputs each.

Establishing a tie

When you connect an input with an output in video or audio, you are establishing a

tie. A tie can be a video-only tie (only a video signal is being transmitted through

an output), an audio-only tie (only an audio signal is being transmitted through an

output) or an audio and video (A/V) tie (a video signal and audio signal are being

transmitted together or apart through one or more outputs).

To establish a tie using the MPX 423 A, do the following:

1. Press the I/O button to select a video-only, audio-only, or A/V tie.

2. Select the output using any of the output buttons.

3. Select the input from any of the 12 inputs.

MPX 423 A

MEDIA PRESENTATION MATRIX

VOLUME

OUTPUTS/

AUD IO

MODE SINGLE SEPARATE

INPUTS

COMPUTER

2 3 4

OUTPUTS INPUTS

S-VIDEO

10 11 12 I/O

AUD IO

AUDIO OUTPUT 1

VIDEO

MUTE

OUTPUTS INPUTS

VIDEO

6 7 8

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 55 56

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