Extron electronic MVX 88 Series manual Preliminary

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In Audio Setup mode, whichever input is selected for adjustment is automatically tied to output 1. You can connect a VU meter or an audio system to output 1 to measure or monitor the audio while you perform adjustments.

There are two ways to measure the audio level during audio setup:

•Monitor the input audio level indicator (Power LED) on the front panel.

•Connect a VU meter to output 1 and, if necessary, temporarily set the

output 1 level to the consumer (-10 dBV) level (see the the Audio output level SIS commands in chapter 4, “Remote Operation”).

The input audio gain or attenuation can be adjusted from the front panel or by using Extron’s Windows-based control program or the SIS.

1. Apply audio signals to all inputs to be adjusted.

2. Press and hold the Audio Setup (I/O) button until the Audio Setup LED lights. Release the Audio Setup button.

3. Press and release an input button to select an input. The selected input can be adjusted and is tied to output 1 for measurement or monitoring.

a. The Output 1 through Output 3 LEDs display the approximate audio gain or attenuation for the selected input. The +dB and –dB LEDs display the polarity (+ [gain] or – [attenuation]).

•Each Output 1 through Output 3 LED indicates a range of 6 dB when lit:

Output 1 LED off = 0 dB to 5 dB

Output 1 LED lit = 6 dB to 11 dB

Output 1 and 2 LED lit = 12 dB to 17 dB

Output 1 through Output 3 LEDs lit = 18 dB

•The +dB LED on indicates a positive (gain) level. The –dB LED on indicates a negative (attenuation) level. Both LEDs on indicate 0 dB.

By noting these LEDs’ displays and counting the number of 1 dB steps you increase or decrease the audio level (step 4 and example 8, step 2a), you can determine the exact input gain or attenuation setting.

b. The Power LED blinks to indicate the adjusted audio level (compared to the internal level, -10 dBV):

•When the LED is lit most of the time, blinking off only occasionally, the level is too high.

•When the LED is off most of the time, blinking on (lit) only occasionally, the level is too low.

•When the LED blinks frequently, the level is in the proper range.

c. The < LED lights steadily when the adjustment is at the minimum level (maximum attenuation, -18 dB). The > LED lights steadily when the adjustment is at the maximum gain (+10 dB).

4. Press and release the < and > buttons to increase and decrease the audio level by 1 dB or press and hold the buttons to increase or decrease the level by 3 dB per second. The < or > LEDs flash to indicate each 1 dB level change.

NEach time you press the < or > button, wait for the < or > LED to flash before pushing the button again. Pressing the button too rapidly may not increment or decrement the audio level.

PRELIMINARY

MVX 44 / 48 / 84 / 88 VGA Matrix Switchers • Operation 3-19

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Contents MVX 44 / 48 / 84 / 88 series VGA Matrix SwitcherConsignes de Sécurité Français Safety Instructions EnglishSicherheitsanleitungen Deutsch Instrucciones de seguridad EspañolFCC Class a Notice Page MVX 44 / 48 / 84 / 88 VGA Matrix Switchers Quick Start QS-1 Quick Start MVX Series VGA Matrix SwitchersSaving or recalling a preset Powering upViewing and adjusting the audio input gain QS-2 MVX 44 / 48 / 84 / 88 VGA Matrix Switchers Quick StartTable of Contents Table of Contents, cont’d One MVX 44 / 48 / 84 / 88 VGA Matrix Switchers Introduction About the SwitchersAny input to any or all outputs FeaturesIntroduction, cont’d Two Rack mounting the switcher Mounting the SwitcherTabletop use Mounting the switcher Furniture mounting the switcherVideo and audio input connections Cabling and Rear Panel ViewsStrap the audio cable to the extended tail of the connector RGB video output connectors Connect Rgbhv videoVideo and audio output connections Control of the switcher Power connectionRemote connection Three MVX 44 / 48 / 84 / 88 VGA Matrix Switchers Operation Front Panel Controls and IndicatorsDefinitions Input 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 LEDAttenuation on Ignores the commandButton is released or the lower limit is reached Has reached the maximum attenuation -18 dBOperations Powering up the switcherCreating a set of ties Select video and audio for the tie figure Example 1 Create a set of video and audio tiesPress and release the Input 5 button figure Press and release the Enter button figure Current configuration -7 is nowSelect video only for the tie figure Example 2 Add a video tie to a set of video and audio tiesPress and release the Output 1 button figure Press and release the Enter button figureExample 3 Remove a tie from a set of ties Current configuration -12 is nowSelect audio only for the tie figure 15 Deselect the output Press and release the Output 4 button figureExample 4 View ties by selecting an input Viewing the configurationSelect both video and audio for viewing figure Press and release the I/O button figure Press and release the I/O button figurePress and release the Output 3 button figure Example 5 View ties by selecting outputs24 Deselect audio to view video ties only Example 6 Save a preset Using presetsPreset 2 Preset Example 7 Recall a presetPress and release the Input 1 button figure Adjusting input audio gain and attenuationPreliminary = unlit, = blinking LED Example 8 Adjust the input audio gain+2 dB Output 1 LED + 2 pressesSaved Example 9 Resetting audio gain single inputExample 10 Resetting audio gain all inputs Setting the output audio levelPress and release the and buttons simultaneously figure Clearing all ties and presets Front panel security lockout Executive modeMemory Resetting the system to factory defaultsOptimizing the Audio TroubleshootingWorksheet example 1 System equipment WorksheetsMain VTGClassical music from the CD player input 5 is Worksheet example 2 Daily configuration45 Worksheet example 3 Test configuration Worksheet example 3 Test configurationPreliminary Input sources Output destinations Configuration worksheetPreliminary Four MVX 44 / 48 / 84 / 88 VGA Matrix Switchers Remote Operation Host-to-Switcher instructionsSimple Instruction Set Control Switcher-initiated messages Using the command/response table Switcher error responsesSymbol definitions Description Command Ascii command Response Additional$ *X% G InX$ AudX Audio mute commands Preliminary EVM EZG Responds with the Go prompt Loading firmware using an SIS commandClick the Files of type drop box and select All files This message indicates that the firmware upload is complete File figureExit HyperTerminal Installing the software Matrix Switchers Control ProgramScroll to the desired program and click Install figure Click the Software tab figureTo run the Matrix Switchers Control Program, click Using the softwareOverview Comm Port Selection window -8 appearsExtron Matrix Switchers Control Program window blank 11 Open window Updating the firmwareMVX 44 / 48 / 84 / 88 VGA Matrix Switchers Remote Operation Windows menus File menu Windows buttons, drop boxes, and trashTools menu 13 RGB Delay/Mute/Output-Volume Adjust window15 Ties shown as lines Preferences menu16 Ties shown as crosspoints Master-Reset selection Using Emulation modeHelp menu on the main screen Using the help systemPreliminary AppendixAA Specifications Specifications and Part NumbersSync Specifications and Part Numbers, cont’d MVX matrix switcher part numbers Part Numbers and AccessoriesMatrix switcher part numbers Part number Included partsCables AccessoriesMale-to-male VGA cable Part number Install kit Part numberVGA to 5 BNC cables Part number Preliminary Asia Japan Extron Electronics, EuropeExtron USA West
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