Extron electronic MAV 88, MAV 84, MAV 44 To exit Audio Setup mode. The Audio Setup LED turns off

Page 44

Operation, cont’d

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

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 that 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.

 

 

Each 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.

5.

Press and release the Audio Setup button to save the level value in memory

 

and to exit Audio Setup mode. The Audio Setup LED turns off.

• After approximately 30 seconds of front panel inactivity, the switcher saves the most recent input gain or attenuation levels and exits Audio Setup mode.

•There is one audio gain or attenuation setting per input. The setting is shared by the left and right audio inputs.

•The input audio gain or attenuation settings are stored in non-volatile memory. When power is removed and restored, the audio level settings are retained.

3-20 MAV 44 / 48 / 84 / 88 Matrix Switchers • Operation

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Contents Matrix Switchers MAV 44 / 48 / 84 / 88 SeriesSafety Instructions English Consignes de Sécurité FrançaisSicherheitsanleitungen Deutsch Instrucciones de seguridad EspañolFCC Class a Notice Page Stereo audio devices to the output MAV 44 / 48 / 84 / 88 Matrix Switchers Quick Start QS-1Unbalanced stereo audio inputs to Quick Start MAV Series AV Matrix Switchers, cont’d Saving or recalling a presetPowering on QS-2 MAV 44 / 48 / 84 / 88 Matrix Switchers Quick StartTable of Contents Table of Contents, cont’d MAV 44 / 48 / 84 / 88 Matrix Switchers Table of Contents Iii Iv MAV 44 / 48 / 84 / 88 Matrix Switchers Table of Contents One Introductiontroduction, cont’d About the SwitchersMAV 44 / 48 / 84 / 88 Matrix Switchers Introduction Features Video featuresAudio features Common featuresIntroduction, cont’d Any input to any or all outputsMAV 44 / 48 / 84 / 88 Matrix Switchers Introduction Introduction, cont’d Two Installationstallation, cont’d Mounting the SwitcherRack mounting the switcher Tabletop useFurniture mounting the switcher Mounting the switcherVideo input and output connections Installation, cont’dCabling and Rear Panel Views Captive screw connector wiring for audio inputs Audio input and output connections audio/video modelsCaptive screw connector wiring for audio output Remote connectionShows a basic external sync configuration External sync connectionPower connection Multiple device external sync connection exampleThree Operationeration, cont’d Front Panel Controls and IndicatorsMAV 44 / 48 / 84 / 88 Matrix Switchers Operation Definitions Power/audio/data LED and infrared sensorPower/data/audio LED Control buttons and LEDs Input and output selection controls and indicatorsOperation, cont’d Audio Setup button Video/+dB LED and Audio/-dB LEDPowering up the switcher OperationsCreating a set of ties Example 1 Create a set of video and audio ties Press and release the Input 5 button figureExample 2 Add a video tie to a set of video and audio ties This example assumes that you have performed example11 Select the output Example 3 Remove a tie from a set of ties Press and release the Output 4 button figureViewing the configuration VideoExample 4 View ties by selecting an input 19 Select video and audioPress and release the I/O button figure Example 5 View ties by selecting outputs24 Select an output Using presets 26 Deselect video to view audio ties onlyExample 6 Save a preset Preset 2 PresetExample 7 Recall a preset 29 Select Recall Preset mode, MAVAdjusting input audio gain and attenuation Consumer VCR Audio InputsTo exit Audio Setup mode. The Audio Setup LED turns off Example 8 Adjust the input audio gain Seconds34 Adjust the input audio level +2 dBResetting audio gain single input Press and release the and buttons simultaneously figureResetting audio gain all inputs Setting the output audio levelFront panel security lockout Executive mode Clearing all ties and presets43 System reset to factory defaults MemoryOptimizing the Audio Audio/Video Switchers TroubleshootingWorksheets Worksheet example 1 System equipmentWorksheet example 2 Daily configuration 45 Worksheet example 2 Daily configurationWorksheet example 3 Test configuration 46 Worksheet example 3 Test configurationConfiguration worksheet Output destinationsOperation, cont’d Four Host-to-Switcher instructions MAV 44 / 48 / 84 / 88 Matrix Switchers Remote OperationRemoteOperation,cont’d Simple Instruction Set ControlSwitcher-initiated messages Switcher error responses Using the command/response tableSymbol definitions Remote Operation, cont’dCommand/response table for SIS commands Command Ascii Command Response Additional descriptionCommand/response table for SIS commands cont’d IR receiver enable Resets Firmware upload Loading firmware using an SIS command Turn on the echo functionSelect the firmware upgrade file Matrix Switchers Control Program Installing the softwareUsing the software OverviewExtron Matrix Switchers Control Program window blank Updating the firmware 11 Determining the firmware version12 Open window, version 2.xx firmware files 13 Open window, version 1.xx firmware files Windows buttons, drop boxes, and the trash can Tools menu Windows menusFile menu Audio-input Configuration selection Preferences menuMaster-Reset selection 18 Ties shown as crosspointsUsing Emulation mode Using the help systemAAppendix a SpecificationsandandPartPartNumbers,Numberscont’d SpecificationsSync composite video and S-video models Specifications and Part Numbers, cont’d Audio output audio modelsControl/remote switcher MAV Series AV switchers Replacement partsPart Numbers Included partsOptional accessories CablesAssorted connectors BNC connectors Pre-cut cablesVideo Cable Composite video CableExtron’s Warranty Asia JapanExtron Electronics, Europe Beeldschermweg 6C
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