Performing a Hard Reset

The hard reset function restores the switcher to the base firmware that it shipped with. After a hard reset, events do not automatically start, but user settings and files are restored. Perform a hard reset as follows:

NOTE: The hard reset restores the factory-installed firmware. The switcher reverts

to that factory firmware the next time power is cycled off and on unless a firmware update is performed before the power cycle.

1.If necessary, turn off power to the switcher.

2.Press and hold the Reset button on the rear panel while you apply AC power to the switcher (see figure 23).

Press and hold the Reset button while you apply power to the switcher.

RESET

— and —

LINK

The switcher flashes the front panel LEDs and then turns them off.

Power

Continue to hold the Reset button until all input and output LEDs return to unlit and the Video and Audio LEDs light.

RESET

Release the Reset button.

LINK

Figure 23. Hard reset

Optimizing the Audio

Each individual input audio level can be adjusted within a range of -18 dB to +24 dB, so there are no noticeable volume differences between sources and for the best headroom and signal-to-noise ratio. Adjust the audio gain and attenuation as follows:

1.Connect audio sources to all desired inputs and connect the audio outputs to output devices such as audio players. See “Audio input and output,” in the Installation section. For best results, wire all of the inputs and the outputs as balanced.

2.Power on the audio sources, the switcher, and the audio players.

3.Switch among the inputs (see “Creating Ties”), listening to the audio with a critical ear or measuring the output audio level with test equipment, such as a VU meter.

4.As necessary, adjust the input audio level of each input (see “Viewing and Adjusting the Input Audio Level,” in this chapter) so that the approximate output level is the same for all selected inputs.

5.As necessary, adjust the output audio level of each input (see “Viewing and Adjusting the Output Volume,” in this chapter).

MPX 866 A Media Presentation Matrix Switcher • Operation 53

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Extron electronic MPX 866 A manual Optimizing the Audio, Performing a Hard Reset
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MPX 866 A specifications

The Extron MPX 866 A is a powerful multimedia presentation switcher known for its robust functionality and advanced features, ideal for a range of professional environments, particularly in education, corporate, and broadcasting sectors. This device is designed to facilitate seamless switching between multiple audio and video sources, ensuring a smooth and professional presentation experience.

One of the standout features of the MPX 866 A is its ability to handle a variety of input formats, including HDMI, DisplayPort, and analog video signals. This versatility allows users to easily connect different devices, such as laptops, projectors, and video conferencing systems, without the need for additional adapters or converters. The unit supports resolutions up to 4K at 60 Hz, making it suitable for high-definition content display.

The switcher is equipped with Extron’s unique Seamless Switching technology, which provides instantaneous switching between sources without noticeable delays or interruptions. This is particularly beneficial in fast-paced environments where timing is crucial, such as live events or presentations.

Another significant aspect of the MPX 866 A is its advanced audio handling capabilities. It includes integrated audio embedding and de-embedding, allowing users to manage audio signals effectively without compromising quality. The built-in audio delay feature ensures synchronization between audio and video, an essential consideration for professional settings.

For ease of operation, the MPX 866 A offers customizable control options. Users can manage the device through various interfaces, including Extron's user-friendly GUI, third-party control systems, and RS-232 commands. This flexibility makes it easier to integrate the switcher into existing AV setups.

Additionally, the unit incorporates powerful scaling technology, which optimizes image quality by adjusting the resolution of the incoming video signals to match the display capabilities of the output device. This ensures that content appears crisp and clear, regardless of the source resolution.

The MPX 866 A is also designed with reliability in mind, featuring robust construction and a fanless design for silent operation. This makes it suitable for environments where noise reduction is critical.

Overall, the Extron MPX 866 A stands out as a versatile, feature-rich multimedia switcher that enhances the presentation experience. Its advanced technologies and characteristics make it an excellent choice for professionals looking to elevate their audio-visual communication.
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