Extron electronics MAV Series Manuale utente

Insert

68-353-05 Rev. A

Printed in the USA

09 02

This insert describes how to use the video and audio mute functions of the CrossPoint, CrossPoint

Plus, MAV series, and Matrix 50 switcher. Video and audio mutes are new features for those matrix

switchers. The front panel operations and SIS commands detailed in this insert are in addition to

the functions described in those products’ manuals.

Depending on your switcher, the video selection button and LED are labeled either RGBHV or Video.

In this insert, they are referred to as Video, but on switchers that have an RGBHV button and LED,

the function is identical.

Muting and unmuting video and/or audio

1. Press the Esc button to clear any input LEDs, output LEDs, or control LEDs that

may be on.

2. Press and release the View button.

3. Select video, audio, or both to mute or unmute by pressing the Video and/or Audio

buttons.

4. One at a time, press and hold the output button(s) for the desired output(s). The

output LED(s) for the selected output(s) flash to indicate the mute or return to their

previous state to indicate the unmute.

5. Press and release the View button to return to normal switcher operation.

1. You can mute video and audio, video-only, or audio-only outputs. Pressing and

releasing the Video and Audio buttons toggles each selection on and off.

2. When you enter view-only mode, the output LEDs turn on for all outputs

without ties.

3. On the CrossPoint and CrossPoint+, the video mute function mutes the R, G, and

B planes only; the H and V planes are still active. On MAV and Matrix 50

switchers, the function mutes all video planes.

4. Mutes are not saved. When power is removed and restored, the mutes are lost.

Example: Muting and unmuting an output

Press and release the Esc button. The Esc LED flashes once.

Press and release the View button to enter view-only mode. The View LED lights.

To select both video and audio for viewing, if necessary, press and release the Video

and Audio buttons until the Video LED and Audio LED light. With no input

selected, all output LEDs that have no established ties (outputs 2, 5, 6, and 7 in the

figure 1 example below) light.

6INPUTS

ENTER

OUTPUTS 6

8 9 10 11

PRESET VIEW ESC

ESC

VIDEO AUDIO

VIEW

CONTROL I/O

VIDEO AUDIO

2765

LED key: = off, = on,

= flash once

Press

Figure 1 — Example: Viewing the current configuration

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www.extron.com

One at a time, press and hold the Output 3 and Output 4 buttons (figure 2) for

approximately 2 seconds until the associated output LED begins to blink. The

output 3 and output 4 video and audio signals are muted.

Figure 2 shows only the indications directly related to the mute operation.

6INPUTS

ENTER

OUTPUTS 6

8 9 10 11

PRESET VIEW ESC VIDEO AUDIO

CONTROL I/O

LED key: = off, = on, = blinking

3 4

Hold Hold

Hold

Press

VIEW

Hold

Figure 2 — Example, step d: Muting and unmuting outputs

One at a time, press an hold the Output 3 and Output 4 LEDs for approximately

2 seconds until the associated output LED lights steadily. The output 3 and

output 4 video and audio signals are unmuted.

Press and release the View button to exit view-only mode. The View LED and

all input and output LEDs go out.

Command/response table for SIS mute commands

Command ASCII Command Response Additional

(host to switcher) (switcher to host) description

Video mute commands

Video mute

*1B Vmt

*1 Mute input

video (video

off).

Video unmute

*0B Vmt

*0 Unmute input

video (video

on).

Read video mute

1= mute on, 0 = mute off.

Global RGB mute 1*B Vmt1

Global RGB unmute 0*B Vmt0

Audio mute commands

Audio mute

*1Z Amt

*1 Mute input

video (video

off).

Audio unmute

*0Z Amt

*0 Unmute input

video (video

on).

Read audio mute

1= mute on, 0 = mute off.

Global audio mute 1*Z Amt1

Global audio unmute 0*Z Amt0

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