Extron electronic MLS 304SA, MLS 304MA, MLS 406SA, MLS 406MA manual Preliminary

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On the switcher (MLS) Config Screen you can:

Set the per-input audio level by adjusting the Audio Input Level slider bar until the output sounds right or measures correctly for maximum power output.

View and update the view of the selected input’s audio signal level status (Clip, Normal, Signal).

Turn the Aux/Mix (mixer) input on or off.

Set loudness boost on or off. If you turn the loudness boost on, when output volume is low the MLS provides a +6 dB boost at 100 Hz and at 10 kHz. When output volume is high, boost is decreased at those frequencies. This improves sound richness by restoring the high and low frequencies to which the ear is insensitive at low volume levels. The effect diminishes as volume is increased.

Make overall bass and/or treble adjustments.

Set overall volume.

Choose between stereo and mono output for the Lineout and Preamp outputs.

Select either -10 dBV unbalanced output or +4 dBu balanced output for the Lineout and Preamp outputs.

Set the video format:

Composite video or RGB for inputs 3 and 4 on an MLS 304MA or MLS 304SA

Composite video/S-video or RGB for inputs 4 through 6 on an MLS 406, MLS 406MA, or MLS 406SA

Select the Monitor Output mode. See Video Signal Routing on pages 3‑7 and 3‑8 for details.

Set the RGB delay period (for Triple-ActionSwitching).

Reset the switcher to factory default settings.

MLS 304 Series, MLS 406Series • Serial Communication 4-11

PRELIMINARY

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Contents MLS 304MA, MLS 304SA, MLS 406, MLS 406MA, MLS 406SA MediaLink SwitchersSafety Instructions English PrecautionsConsignes de Sécurité Français Sicherheitsanleitungen DeutschQuick Start MLS 304MA, MLS 406, MLS 406MA InstallationVideo Configuration Table of Contents Table of Contents, cont’d One Introduction FeaturesAbout this Manual About the MLS 304 Series and the MLS 406 SeriesTwo UL/Safety Requirements InstallationImportant Safety Instructions MLS 304 Series, MLS 406 Series InstallationMounting the Switcher Tabletop useRack mounting Power connection Power, input, and control connectionsMLS 304 Series, MLS 406 Series Installation Rear Panels and CablingBalanced Mono Input Input Type Signal BNC Color MLS 304 Series, MLS 406 Series Installation Installation, cont’dControl connection IR Link IR signal repeaterThat has an external power supply Video output, local monitor, and audio output connections Video outputsAudio outputs Unbalanced Mono Output Balanced Mono Output Ohm Total Load Wiring for 4 ohm or 8 ohm speakers MA modelsSpeakers Tapped at 7.5 Watts Each Equals 15 Watts Total Stereo Output Wiring for 4 ohm or 8 ohm speakers SA modelsExamples of speaker layouts Speaker arrangement examplesApplication Diagrams MLCExtron Projector MLCThree Front Panel Features and Operation Operation and Setup MLS 304 Series, MLS 406 Series Operation and Setup Minimum threshold at least 21%Front panel security lockout executive modes MLS 304 Series, MLS 406 Series Operation and SetupSetting Up and Optimizing the Audio Resetting the switcherMLS 304 Series, MLS 406 Series Operation and Setup Adjusting audio input levels Configuring Lineout and Preamp output levelsSignal detection threshold Making adjustmentsClipping level Normal rangeStandard mode mode Video Signal RoutingDA distribution amplifier mode mode RGB follow mode modeRemote Control Mode Selected input Input special conditions Monitor OutputMode Troubleshooting If the switcher does not respond to controlsIf the image does not appear or there is no sound Preliminary Four Serial Communication RS-232 Programmer’s GuideHost-to-MLS communications Using the command/response tables Symbol definitionsMLS 304 Series, MLS 406Series Serial Communication Command Ascii Command Response Additional description Command/response table for SIS commandsAux/Mix input Audio status for the active inputFirmware version, part number & information requests Command Ascii Command Response ? values Command/response table for special function SIS commandsInstalling the software Using the control programControl Software for Windows Special features User Mode ScreenSwitcher MLS Config Screen Preliminary Saving and restoring configurations File menu optionsUpdating firmware Follow the on-screen instructions Using the help program Key to file namesFile name Description AAppendix a Reference Material SpecificationsVideo Video input and loop-throughSync AudioMLS 304 Series, MLS 406 Series Reference Material A- Audio input Audio output mono power amp MLS 304MA, MLS 406MA onlyAudio output Lineout and Preamp Included partsAudio output stereo power amp MLS 304SA, MLS 406SA only Control/remote switcherGeneral Optional accessories Part Numbers and AccessoriesIncluded parts Replacement Part number Accessory Part numberAudio Reference Levels Frequency Response Graph for the Loudness FeatureMLS 304MA audio block diagram Audio Block DiagramsUtinpse LE CT MLS 304SA audio block diagramInputs MLS 406, MLS 406MA audio block diagramMLS 304 Series, MLS 406 Series Reference Material A-11 MLS 406SA audio block diagramThis page was deliberately left blank FCC Class a Notice Extron’s Warranty Extron Electronics, USA
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