Extron electronic MVX 128 manual Example 11 Viewing and adjusting an output volume level

Page 48

Operation, cont’d

When all input LEDs are lit, the audio output is 100% of the audio input level.

Another way to view the volume level is to think in terms of the attenuation that is applied to the output. Attenuation reduction is indicated by the lit or blinking input LEDs: when fewer input LEDs are lit, attenuation is greater (and the volume is less).

•At minimum volume, all input LEDs are unlit and 98 dB of attenuation is applied to the output. The audio output is effectively muted.

•The first step of volume increase causes the Input 1 LED to blink slowly. Attenuation is reduced by 35 dB (63 dB of attenuation is applied to the output). There is no change in the volume indication.

•The second step of volume increase reduces the attenuation by an additional 1 dB (62 dB of attenuation is applied to the output). The front panel display is unchanged.

•Successive steps of volume increase cause consecutive input LEDs to first blink slowly, then quickly, and then light steadily.

For example: When lit steadily, the Input 3 LED indicates 47 dB of attenuation when compared to the Input 3 LED blinking quickly (48 dB to 50 dB of attenuation). The blinking Input 4 LED (45 dB to 46 dB of attenuation) is at least 2 dB less than the fast blinking Input 3 LED (48 dB – 46 dB) and at most 5 dB less (50 dB – 45 dB).

See the table on page 3-29 to read the volume display.

Example 11: Viewing and adjusting an output volume level

In the following example, the audio output volume is viewed and adjusted. The steps show the front panel indications that result from your action.

1.

Press and release the Esc button (figure 3-47).

Press the Esc button to clear all selections.

CONTROL

1

ENTER PRESET VIEW ESC

1= Blink once The LED blinks once.

Figure 3-47 — Clear all selections

2. Press and hold the Audio button for approximately 2 seconds (figure 3-48).

Press and hold the Audio button.

I/O

2 seconds

RGBHV AUDIO

AUDIO

= Blinking LED

The LED blinks to indicate Audio mode.

Release the button.

 

Figure 3-48 — Select Audio mode

3-30 MVX 128 A VGA Matrix Switchers • Operation

Page 47 Page 49
Image 48
Page 47 Page 49
Contents VGA Matrix Switcher MVX 128 aPrecautions Safety Instructions EnglishConsignes de Sécurité Français Sicherheitsanleitungen DeutschQuick Start MVX 128 a VGA Matrix Switchers Plug the switcher into a grounded AC sourceMVX 128 a VGA Matrix Switchers Quick Start QS-1 Saving or recalling a preset Viewing and adjusting the audio levelQS-2 MVX 128 a VGA Matrix Switchers Quick Start Create a tieTable of Contents Table of Contents, cont’d One About the MVX 128 a Matrix Switcher MVX 128 a VGA Matrix Switchers IntroductionIntroduction About this ManualDefinitions Features Introduction, cont’dMVX 128 a VGA Matrix Switchers Introduction Introduction, cont’d Two Installation Mounting the SwitcherMVX 128 a VGA Matrix Switchers Installation Cabling and Rear Panel ViewsCaptive screw connector wiring for audio inputs Audio connectionsInstallation, cont’d RS-232/RS-422 connectionReset button Power connectionInstallation, cont’d Three Front Panel Controls and Indicators MVX 128 a VGA Matrix Switchers OperationOperation DefinitionsInput and output buttons Sample labelOperation, cont’d Control buttonsSee Viewing and adjusting the input audio level on Controls Power Front Panel OperationsCreating a configuration Example 1 Creating a set of video and audio ties Press and release the Esc button figurePress and release the input 5 button figure Select the outputs Press and release the Enter button figureExample 2 Adding a tie to a set of video and audio ties This example assumes that you have performed example13 Press the Enter button Example 3 Removing a tie from a set of video and audio ties 15 Clear all selections18 Deselect the output Viewing a configuration 21 Clear all selectionsRgbhv button and the Audio button figure 22 Select Rgbhv or video and audioPress and release the Rgbhv button to deselect Rgbhv figure Video AudioMuting and unmuting video and/or audio Example 5 Muting and unmuting an output28 Select Rgbhv and audio 30 Unmute the outputs Using global presets Example 6 Saving a presetLED blinks figure Press and release the Output 1 button figureExample 7 Recalling a preset Press and release the Preset button figureViewing and adjusting the input audio level 40 Press the Enter buttonDB when blinking slowly, 2 dB When blinking quickly, and 3 dBWhen lit. See the table at right Press and release an input buttonExample 10 Viewing and adjusting an input audio level 42 Clear all selectionsPress and release the Audio button figure View View ESC OutputsViewing and adjusting the output volume Released or the upper or lower limit is reachedAudio mode. The Audio button stops blinking Reading the displayed volume Audio output volume settingsExample 11 Viewing and adjusting an output volume level 47 Clear all selections49 Select output Locking out the front panel Executive mode Performing a system reset from the front panelEnter Preset View ESC Rgbhv Audio Selecting the RS-232/RS-422 protocol and baud ratePerforming an absolute system reset from the rear panel Rear Panel OperationsNot occur within 1 second Performing a hard reset from the rear panel Optimizing the AudioTroubleshooting Configuration WorksheetsWorksheet example 1 System equipment Worksheet example 2 Daily configuration AudioWorksheet example 3 Test configuration 61 Worksheet example 3 Test configurationOutput destinations Configuration worksheetOperation, cont’d Four Host-to-Switcher Instructions Switcher-Initiated MessagesMVX 128 a VGA Matrix Switchers Programmer’s Guide Programmer’s GuideSwitcher Error Responses Using the Command/Response TablesCommand/Response Table for SIS Commands Symbol definitionsX1 = X1@ =Command Ascii command Response Additional Description% G InX! AudX$ Audio volume adjustment settings EX!NI EZG X1* CY X1X1X1X1X1X2 Information requestsProgrammer’s Guide, cont’d Five Matrix Switchers Control Program Installing the softwareMVX 128 a VGA Matrix Switchers Matrix Software Matrix SoftwareUsing the software Click OK and proceed to stepMatrix Software, cont’d Updating firmware Open file windowClick the Exit button to exit the firmware loader utility Windows buttons, drop boxes, and trashcan Windows menusFile menu Audio-Output volume settings Displays the audio Tools menuPreferences menu Ties shown as linesUsing emulation mode Using the help systemMaster-Reset selection Button-Label Generator ProgramAppendixAA Specifications, Part Numbers, Accessories SpecificationsAudio Specifications, Part Numbers, Accessories, cont’d Part Numbers and Accessories AccessoriesIncluded parts Replacement part Number Adapters, power supplies, labels Part numberMale-to-female VGA molded connector cables Part number Male-to-female VGA backshell connector cables Part numberMale-to-male VGA molded connector cables Part number CablesButton Labels Figure A-1 Button label blanks, 12-button stripsSpecifications, Part Numbers, Accessories, cont’d FCC Class a Notice Extron’s Warranty Extron Electronics, EuropeExtron Electronics, USA
Top Page Image Contents