Extron electronic MMX 42 Operationration, cont’d Front Panel Controls and Indicators, Memory

Operationration, cont’d

Front Panel Controls and Indicators

Figure 3-1 shows the controls and indicators on the front panel of the MMX 62 compact matrix switcher.

1	2			3		4	5
OUTPUTS				INPUTS			CONFIG
	1	2	3	4	5	6
	1						VIDEO
	2						AUDIO

MMX SERIES

Figure 3-1 — Front panel controls and indicators (MMX 62 shown)

1Outputs button — The Outputs button toggles between output 1 and output 2.

2Output LEDs — The Output LEDs indicate the selected output. When an output is muted (audio and/or video) the input LED for the muted output will be off (audio and/or video).

3Input buttons and LEDs — The input buttons (1 through 4 on the MMX 42 and 1 through 6 on the MMX 62) select an input for output. The input LEDs indicate the selected input. When the audio or video is muted, the input LEDs will be off for the signal that is muted.

4Video and/or audio selection — When pressed and released, the Config button cycles through video and audio, audio only, and video only selected for configuration.

The Video and Audio LEDs indicate whether video, audio, or both are selected for display and/or selection. If audio is broken away and video and audio are selected for display, the Audio LED blinks.

Front Panel Operations

Plug in all system components and turn on the input devices (such as DVD players, VCRs, and DSS receivers) and the output devices. Set the input devices to output video using each device’s own operating instructions.

Creating ties

A Tie is an input-to-output connection. An input can be tied to both outputs. (An output can never be tied to more than one input.)

Create video and/or audio ties using the front panel buttons as follows:

1.	Press and release the Outputs button to select the desired
	output. The LED for the selected output lights.
2.	Press and release the Config button as necessary to select
	either video and audio (audio follow) or video or audio
	(audio breakaway).
3.	Press and release the button for the desired input. The
	LED for the selected input lights.

If audio and video are tied from different inputs (audio breakaway), and if you select video and audio for display, the Video LED and the LED for the selected video input light steadily and the Audio LED and the LED for the selected audio input blink .

A tie can also be created by an RS-232 device (see chapter 4, Remote Control).

If an output is muted via RS-232, pressing any input button will unmute the output.

Memory

Audio settings are saved in nonvolatile memory. When the switcher is powered off, the settings are retained. When the switcher is powered on again, the switcher recalls the connections made prior to power down and the saved settings are active. On initial power on, the switcher defaults to input 1 tied to output 1 and input 2 tied to output 2.

Executive Mode

When executive mode is on it locks all front panel functions. To toggle the executive mode on or off, press and hold the Output and Config buttons for more than 3 seconds. All LEDs will flash to indicate that the command has been accepted.

Genlock Sync

When switching between inputs, the resulting image change should be seamless and clean. The MMX switchers reference the external sync signal on input #1 to synchronize switching during the vertical interval. This allows vertical interval switching between genlocked sources. Without the external sync locking feature, switching between inputs can result in a brief rolling (sync loss) or a brief change in the picture size.

3-2 MMX 42/62 Series Matrix Switchers • Operation MMX 42/62 Series Matrix Switchers • Operation 3-3