Extron electronic MAV 44, MAV 88, MAV 84, MAV 48 manual +2 dB, Adjust the input audio level

Page 46

Operation, cont’d

b. Return to the original audio gain setting by pressing and releasing the or button (the opposite of the button you pressed in step a) the same number of steps you pressed the opposite arrow button in step 1. In example 8, this means pressing the button three times.

c. Add the dB value indicated by the highest-numbered lit output LED (no output LEDs lit and both dB LEDs lit = 0 dB) and either of the following:

•The number of button presses from 0 dB, or

•The number of button presses from when the highest-numbered output LED lit. In example 8:

Output 1 LED:

6 dB

+ 2 presses:

+2 dB

 

8 dB

d. The lit +dB or –dB LED indicates the gain (+) or attenuation (–).

3.

Press and release the

button once to decrease the audio level (figure 3-34).

 

The

LED flashes each time the button is pressed.

Press and release the button several more times to continue to decrease the audio level (figure 3-34). Note the output LED, +dB LED, and –dB LED changes that occur each time the button is pressed and released.

Figure 3-34 shows the result of pressing the button a total of 9 times to change the value to -1 dB. Note that the +dB LED has turned off and that the –dB LED is on to indicate a negative level.

 

 

 

 

 

10 6

3

0 3 +

 

 

 

 

 

 

VU

 

Press the

button to

 

 

 

 

 

 

decrease the input audio level

 

 

 

A VU meter connected

by 1 dB per button push.

 

OUTPUTS

 

to output 1 indicates

 

 

 

 

that the adjusted level

 

1

2

3

4

 

is approximately the

 

 

 

 

+dB

 

 

 

 

same as the –10 dBV

 

 

 

 

-dB

 

 

 

 

 

internal level.

 

The -dB LED

The Output 1, Output 2, and Output 3

indicates a negative

LEDs display the input's audio level range.

(attenuation) level.

In this example, the LEDs indicate audio attenuation in the –1 dB to –5 dB range.

= lit, = unlit, = flickering LED

The power LED blinks frequently to indicate that the adjusted level is properly set.

Figure 3-34 — Adjust the input audio level

If another input button is pressed and released, the gain value for the current input is saved and the gain value for the newly selected input is displayed.

4. Press and release the Audio Setup button (figure 3-35). All audio changes are saved.

Press the Audio Setup button to exit Audio Setup mode.

I/O

VID +dB AUD -dB

AUDIO SETUP

All input and output LEDs turn off.

The Audio Setup LED turns off.

Figure 3-35 — Exit Audio Setup mode

3-22 MAV 44 / 48 / 84 / 88 Matrix Switchers • Operation

Page 45 Page 47
Image 46
Page 45 Page 47
Contents Matrix Switchers MAV 44 / 48 / 84 / 88 SeriesSicherheitsanleitungen Deutsch Safety Instructions EnglishConsignes de Sécurité Français Instrucciones de seguridad EspañolFCC Class a Notice Page Unbalanced stereo audio inputs to MAV 44 / 48 / 84 / 88 Matrix Switchers Quick Start QS-1Stereo audio devices to the output Powering on Quick Start MAV Series AV Matrix Switchers, cont’dSaving or recalling a preset 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 MAV 44 / 48 / 84 / 88 Matrix Switchers Introduction About the SwitchersIntroductiontroduction, cont’d Features Video featuresIntroduction, cont’d Audio featuresCommon features Any input to any or all outputsMAV 44 / 48 / 84 / 88 Matrix Switchers Introduction Introduction, cont’d Two Rack mounting the switcher Installationstallation, cont’dMounting the Switcher Tabletop useFurniture mounting the switcher Mounting the switcherCabling and Rear Panel Views Installation, cont’dVideo input and output connections 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 MAV 44 / 48 / 84 / 88 Matrix Switchers Operation Front Panel Controls and IndicatorsOperationeration, cont’d Power/data/audio LED Power/audio/data LED and infrared sensorDefinitions Operation, cont’d Input and output selection controls and indicatorsControl buttons and LEDs 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 RemoteOperation,cont’d Host-to-Switcher instructionsMAV 44 / 48 / 84 / 88 Matrix Switchers Remote Operation Simple Instruction Set ControlSwitcher-initiated messages Symbol definitions Switcher error responsesUsing the command/response table 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 File menu Windows menusTools 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 Part Numbers MAV Series AV switchersReplacement parts Included partsOptional accessories CablesVideo Cable Assorted connectors BNC connectorsPre-cut cables Composite video CableExtron’s Warranty Asia JapanExtron Electronics, Europe Beeldschermweg 6C
Top Page Image Contents