Extron electronic MVX 44, MVX 88, MVX 84, 48 manual Optimizing the Audio, Troubleshooting

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Optimizing the Audio

Each individual input audio gain can be adjusted within a range of -18 dB to +10 dB to eliminate noticeable volume differences between sources and to achieve the best headroom and signal-to-noise ratio. Adjust the audio level as follows:

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

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

3.Apply audio signals to all inputs to be optimized.

4.In Audio Setup mode (see “Adjusting Input Audio Gain and Attenuation,” on page 23) select among the inputs while observing the front panel Power LED. The LED blinks at a rate that corresponds to the highs and lows of the audio signal.

5.As necessary, adjust the audio gain of each input so that the Power LED blinks frequently for all selected inputs. If the LED is lit most of the time, the level is probably too high; if the LED rarely flashes, the level is too low.

As an alternative:

•If necessary, temporarily set the output 1 level to the consumer (-10 dBV) level (see the

Audio output level SIS commands in the “Remote Operation” section).

•Measure the output 1 audio level (in Audio Setup mode, the selected input is tied to output 1) with test equipment, such as a VU meter, or listen to the output 1 audio with a critical ear.

Troubleshooting

This section gives recommendations on what to do if you have problems operating the

MVX Series switcher.

1.Ensure that all devices are plugged in and powered on. The switcher is receiving power if the power LED is lit.

2.Ensure an active input is selected for output on the switcher.

3.Ensure that the proper signal format is supplied.

4.Check the cabling and make corrections as necessary.

5.Call the Extron S3 Sales and Technical Support Hotline if necessary. See the last page of this guide for the phone number in your region of the world.

MVX 44 / 48 / 84 / 88 VGA Matrix Switchers • Operation 31

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Contents MVX 44 / 48 / 84 / 88 Series Safety Instructions English FCC Class a Notice Variables are written in slanted form as shown here Conventions Used in this GuideExtron Electronics. All rights reserved Contents MVX 44 / 48 / 84 / 88 VGA Matrix Switchers Contents About this Guide About the SwitchersAny input to any or all outputs FeaturesMVX 44 / 48 / 84 / 88 VGA Matrix Switchers Introduction Cabling and Rear Panel Views Mounting the SwitcherVideo and Audio Output Connections Video and Audio Input ConnectionsRS-232 Port Pin Assignment Remote ConnectionPower Connection MVX 88 VGA a Front Panel Front Panel Controls and IndicatorsInput and Output Selection Controls and Indicators Infrared Sensor and Power/audio/data LEDPower/data/audio LED O and Audio Setup button Selection and Audio/video Controls and IndicatorsControl Buttons and LEDs Video/+dB LED and Audio/-dB LEDMVX 44 / 48 / 84 / 88 VGA Matrix Switchers Operation Operations Powering up the SwitcherDefinitions Example 1 Create a set of video and audio ties Creating a Set of TiesSelect an input Press and release the input 5 button Confirm the change Press and release the Enter button Example 1 ConfigurationSelect the output Press and release the output 1 button Example 2 Add a video tie to a set of video and audio tiesSelect the output Press and release the output 4 button Example 3 Remove a tie from a set of tiesExample 4 View ties by selecting an input Viewing the ConfigurationDeselect audio Press and release the I/O button Press and release the Output 3 button Example 5 View ties by selecting outputsUsing Presets Preset Locations by Matrix Size Example 6 Save a presetExample 7 Recall a preset Audio Gain and Attenuation Adjusting Input Audio Gain and AttenuationSeconds Example 8 Adjust the input audio gainInput 5 LED lights to Adjust the Input Audio Level Example 9 Resetting audio gain single input Front Panel Security Lockout Executive Mode Setting the Output Audio LevelClear all Ties and Presets Clearing all Ties and PresetsMemory Resetting the System to Factory DefaultsOptimizing the Audio TroubleshootingWorksheet Example 1 System Equipment WorksheetsWorksheet Example 2 Daily Configuration Worksheet Example 2 Daily ConfigurationWorksheet Example 3 Test Configuration Worksheet Example 3 Test ConfigurationOutput destinations Configuration WorksheetSmall Matrix IR Remote Control IR Remote ControlSwitcher-initiated Messages Host-to-Switcher InstructionsSimple Instruction Set Control Using the Command and Response Table Switcher Error ResponsesCommands are not case sensitive Command and Response Table for SIS Commands Symbol definitionsX1 = X1! =Command/Response Table for SIS Commands Directly write a global preset Save, recall, and directly write global presetsRGB delay View ties, gains, mutes, and presetsResets Front panel lockout Executive modeFirmware upload Information requestsClick the Files of type drop box and select All files Loading Firmware Using an SIS CommandSelect the Firmware Upgrade File Installing the Software Matrix Switchers Control ProgramTo run the Matrix Switchers Control Program, click Using the SoftwareStarting the Software Comm Port Selection window appearsMatrix Switchers Control Program Window no Ties Updating the Firmware Location of Firmware Upgrade FilesDownloading Firmware Upgrade Files Extron Firmware Loader Window Windows menus Windows Buttons, Drop Boxes, and Trash CanClick Exit to close the Firmware Loader Tools menu Audio Input Configuration selection Master-Reset selection Using the Help System Using Emulation ModeChoose Emulate, and click OK Reference Information SpecificationsVideo output Audio input Matrix switcher part numbers Part Number Part Numbers and AccessoriesMVX Part Numbers Included PartsCables Optional AccessoriesBulk cable and termination tools VGA male-to-male cables Part Number Terminated cable assembliesVGA male-to-male with audio cables Part Number VGA male-to-female cables Part NumberUL Rack-Mounting Guidelines Tabletop UseMounting Instructions Europe, Africa, and the Middle China East USA, Canada, South America Japan Central AmericaAsia Middle East Europe
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48, MVX 84, MVX 44, MVX 88 specifications

Extron Electronics is a prominent leader in high-quality AV technology solutions, renowned for its innovative product lines designed to address diverse connectivity and distribution needs. Among their array of offerings, the MVX series stands out, particularly the MVX 44, MVX 84, and MVX 88 models, which cater to various AV signal routing needs within educational institutions, corporate environments, and large spaces.

The Extron MVX 44 is a 4x4 matrix switcher designed for routing HDMI, VGA, and audio signals. One of its key features is its ability to deliver high-resolution video up to 1080p, making it ideal for modern multimedia presentations. The MVX 44 supports EDID management, ensures compatibility with a range of source devices, and features automatic switching capabilities. It also includes a user-friendly interface for seamless operation, allowing simultaneous switching of multiple input sources to multiple outputs.

Expanding on the capabilities of the MVX 44, the MVX 84 and MVX 88 models provide enhanced functionality with additional inputs and outputs. The MVX 84 offers support for up to 8 input sources and 4 output destinations, while the MVX 88 offers 8x8 routing of signals. Both models maintain superior video quality and high-performance signal processing, accommodating more extensive AV systems. They also share features such as HDCP compliance to secure content protection, ensuring that the highest quality video signals are transmitted without degradation.

Technologically advanced, these switchers incorporate Extron's exclusive technologies, such as the Advanced Color Processing for superior color fidelity and signal reliability. Additionally, the Series comes equipped with optional control and integration capabilities, enabling connection to various AV control systems for centralized management.

The Extron MVX series matrices are built with the robustness expected from Extron products, ensuring long-term reliability in demanding environments. The integration of state-of-the-art support for audio signals allows not only video but also audio distribution, making them versatile for any AV setup. In summary, with their rich feature set, impressive scalability, and superior video processing capabilities, the Extron MVX 44, MVX 84, and MVX 88 present compelling solutions for anyone looking to streamline AV signal management in professional setups.
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