Reference Information, cont’d

If you choose to check for proper operation before putting the cover back on, ensure that tools and hands are outside the switcher, and then connect the power cord to the unit and to an AC source. The switcher should power up normally. Unplug the AC power cord, and reinstall the switcher.

7.Attach the power cord to the switcher and to the AC power source. Ensure the switcher is working properly.

8.If the switcher was removed from a rack, remove its power cord, reattach the switcher to the rack, and reconnect the power cord.

9.

Reconnect the input and output cables.

Installing a firmware update

The IC that contains the firmware for the matrix switcher also contains the memory in which presets and audio levels are saved. When you replace the IC, these settings will be lost. You may want to record the presets and audio levels before you replace the IC.

To replace the firmware, do the following:

1.Follow the instructions in Opening the switcher on page B-2 for removing the top cover, including the instructions for removing the front panel.

2.Locate the RS-232/RS-422 ribbon cable that connects the front panel board to the rear panel RS-232/422 port (figure B-2). Note which receptacle on the front panel board that the cable plugs into, and remove the cable from its receptacle (see step 4 in Swapping the serial ports).

Do not touch the components inside the switcher without being electrically grounded. Electrostatic discharge (ESD) can damage ICs, even if you cannot feel, see, or hear it.

3.Unplug the power cable from the front panel board.

4.Place the front panel board, button side down, on a suitable workspace.

5.Locate IC U7 (see figure B-2).

6.Use the PLCC IC puller to remove the existing firmware IC. Squeeze the tool to align its hooks with the slots in opposite corners of socket U7.

Insert the hooks, squeeze gently, and pull the IC straight out of the socket. Set the IC aside.

7.Note the key (angled corner) of the new firmware IC and the

dot on the underside that indicates pin 1 (figure B-3). Orient the IC to match the key and pin 1 (indicated by the arrow), and carefully press the IC in place.

Key

Pin 1 mark

 

Socket

Pin 1 mark

Key

IC

Figure B-3 — Key and pin 1 mark

8.Reinstall the power cable that was removed in step 3.

B-4 MAV Series Switchers • Reference Information

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Extron electronic MAV manual Reference Information, cont’d, Installing a firmware update
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MAV specifications

Extron electronics are renowned for their cutting-edge technology in the realm of AV systems and distribution solutions. Among its notable products, the MAV series stands out as an advanced tool for managing audio/video signals across various applications. The Extron MAV, or Multi-Format Audio/Video Switcher, provides a seamless approach to switching between multiple sources effortlessly, making it an integral component in modern AV setups.

One of the main features of the Extron MAV is its multi-format switching capability. It supports a wide variety of video signals, including HDMI, VGA, display port, and composite video, allowing users to connect different devices without worrying about compatibility issues. This versatility is particularly beneficial in environments such as classrooms, conference rooms, and auditoriums, where multiple input sources like laptops, projectors, and other multimedia devices are commonly used.

Another significant characteristic of the MAV series is its robust audio integration. The MAV not only switches video signals but also routes audio through its built-in audio switcher. This feature simplifies the workflow by allowing users to manage audio from the same interface, ensuring synchronized audio and video output. The device also supports advanced audio features, including audio de-embedding and analog audio outputs, making it suitable for complex AV systems.

The MAV employs Extron's proprietary technologies to enhance signal integrity. For instance, it adopts advanced signal processing to prevent degradation of video quality, maintaining a clear and crisp image even over long distances. The incorporation of automatic switching allows for a quick transition when the active source changes, ensuring minimal downtime during presentations.

The intuitive user interface of the MAV is another defining characteristic. It can be controlled through a dedicated touchscreen or via a web-based interface, providing flexibility in how users interact with the system. Additionally, the MAV can be integrated with control systems like Extron’s Global Scripter, enabling customized automation and enhanced interactivity.

In summary, the Extron MAV exemplifies advanced AV technology with its multi-format switching, integrated audio management, superior signal processing, and user-friendly interface. Its adaptability and robust performance make it an essential tool for professional AV environments, catering to a broad range of applications and ensuring a seamless experience for users and audiences alike. Whether in educational settings, corporate environments, or entertainment venues, the Extron MAV consistently delivers high-quality audio and video performance.
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