Extron electronic PVS 204SA Setting Up and Optimizing the Audio, Steps for optimizing the audio

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Setting Up and Optimizing the Audio

The following steps ensure optimal sound is achieved by configuring the PVS 204SA properly. For each step, refer to the sections indicated for more information.

Steps for optimizing the audio

1. Ensure all the settings are at default. These are the settings the PVS has upon initial power up. The default settings are as shown below.

•Volume is set at 50%.

•Bass and treble are set at 0.

•Power Amplifier level is set to 50% (default level is 0 dB).

•Loudness control is set to Off.

NAmplifier level and volume level are not the same adjustments. Volume can only be adjusted by RS-232 or with a potentiometer connected to the rear panel port labeled “DC Vol”. Amplifier level is adjusted via the front panel encoder.

2. Ensure that the PVT transmitters are connected to the PVS and that there is an audio input source present at each of the transmitters. Refer to the transmitters’ user’s manual for installation/connection information.

3. Ensure a set of speakers are connected to the PVS 204SA. See chapter 2, “Installation”, “Speaker Configuration” section, for details.

4. Slowly adjust the volume to 100% via RS-232, by having the MLC increase the volume, or by a potentiometer connected to the DC Volume port on the rear panel. If an MLC 104 IP Plus is connected to the PVS, simply rotate the volume knob clockwise until it is at full volume.

5. Adjust the input sensitivity for one input through the front panel or by RS-232 to a level just below where audio input is clipped. See the sections “Individual channel input sensitivity control” and “Clipping indicator”, later in this chapter, for details. Repeat for all four inputs.

NAdjusting input sensitivity for all inputs ensures that all inputs are at the same level, and at the highest level possible before clipping occurs. Step 5 ensures that when the volume is at 100%, the audio signal will not clip.

6. When adjustments to all four inputs’ sensitivity settings have been made, adjust the amplifier level. Increase or decrease the amplifier level very slowly by turning the front panel level encoder counterclockwise until the desired level is reached.

NIf the volume is at 100% through the MLC and the output on the speakers is too loud, reducing the amp level using the front panel encoder is recommended. This ensures that the volume will not be too loud, even when set at 100%.

7.

Fine tune the audio by making adjustments to the bass, treble, and loudness

 

until the desired settings are reached. See “Bass, treble, and loudness

 

control”, later in this chapter.

PRELIMINARY

PVS 204SA Switcher • Operation and Setup

3-5

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Contents PVS 204SA PoleVault SwitcherSicherheitsanleitungen Deutsch PrecautionsSafety Instructions English Consignes de Sécurité FrançaisFCC Class a Notice Quick Start PVS 204SAQuick Start PVS 204SA, cont’d Table of Contents Table of Contents, cont’d One About the PVS 204SA PVS 204SA Switcher IntroductionIntroduction About this ManualFeatures Introduction, cont’d Application DiagramsMLP 101 AAP Introduction, cont’d Two PVS 204SA Switcher Installation InstallationUL/Safety Guidelines Important safety instructionsInstalling the PVS 204SA on the PMK Mounting the SwitcherPower connection Rear Panel Features and CablingInput connections Twisted pair RGB video and audio cable wiring Output connections Installation, cont’dAs shown at right Aux/Mix input connectionControl connection RS-232/MLC/IR control port The PVS switcher can beConfigured with a driver to 12 Connecting an IR Link to the switcher Speaker arrangement examples Speaker ConfigurationStereo or Dual Mono Output using parallel speaker wiring Connecting speakers to the PVS 204SALabeling the A/V Inputs Labeling and connecting the A/V input cablesLabeling the PVT Decora face plates Final SetupThree Front Panel Features and Operation Operation and Setup PVS 204SA Switcher Operation and Setup Setting the single switcher mode via the front panel Setting Switcher ModesSingle switcher mode Separate switcher modeSetting the separate switcher mode via the front panel Auto SwitchingSetting the input auto switching mode via the front panel Steps for optimizing the audio Setting Up and Optimizing the AudioAmplifier level control Front panel input sensitivity adjustmentGain control Individual channel input sensitivity controlAux/Mix control Resetting the SwitcherClipping indicator Bass, treble, and loudness controlSetting the executive mode via the front panel Front Panel Security Lockout Executive ModeFour PVS-initiated messages Serial CommunicationRS-232 Programmer’s Guide Host-to-PVS communicationsUsing the command/response tables Error responsesSymbol definitions Serial Communication, cont’d Factory defaultsCommand Ascii Command Response Additional description Command/response table for SIS commandsVolume adjustment Status commandsCommand Ascii Command Response ? values Command/response table for special function SIS commandsUpdating Firmware Click Upload to upload the firmware file into the PVS 204SA Preliminary Reference Material Reference Material PVS 204SA Switcher Reference MaterialVideo output composite video Reference Material, cont’d Accessories Part Numbers and AccessoriesIncluded parts Cable accessories Speaker accessoriesAccessory Part number Reference Material Audio Block DiagramDBV Voltage DBu Audio Reference LevelsExtron’s Warranty Extron USA West
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