Extron electronic SW AV manual Adjusting audio gain and attenuation audio switchers

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Operation, cont’d

Video switchers must be in normal (manual) mode.

ATo select video only for the switch, if necessary, press and release the I/O buttons until the Video LED lights and the Audio LED is off.

BPress and release the input 4 button. The input 4 LED lights. The video on input 4 is now selected for output. If the steps in Example 1 have been completed, the input 1 LED blinks. The current configuration is now video input 4 and audio input 1 selected for output.

Example 3: Select an audio input only (video AND audio switcher)

See figure 3-7 and the following steps for an example in which the input 2 audio only is selected for output (audio breakaway).

 

 

LED key:

 

= off,

= on,

B

= blinking

I/O

1

2

3

4

5

6

7

8

VIDEO

AUDIO

Press I/O

 

 

 

A

VIDEO

 

 

AUDIO

Press 2

 

 

 

 

 

B

B

 

 

 

Figure 3-7 — Example 3: Selecting audio input 2

Video switchers must be in normal (manual) mode.

ATo select audio only for the tie, if necessary, press and release the Video and Audio buttons until the Video LED is off and the Audio LED lights.

BPress and release the input 2 button. The input 2 LED blinks. The audio on input 2 is now selected for output. If the steps in Example 1 and 2 have been completed, the input 4 LED lights steadily. The current configuration is now video input 4 and audio input 2 selected for output.

Adjusting audio gain and attenuation (audio switchers)

Audio switchers have audio gain and attenuation adjustments. The audio level of each input can be adjusted through a range of -18 dB to +24 dB to ensure that there is no noticeable volume difference among sources and to eliminate the need for separate preamps or attenuators when used with professional (higher line level) and consumer (lower line level) audio equipment.

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

Video switchers must be in normal mode.

1.

(Video AND audio switcher) Select to switch both video and audio or audio

 

only by pressing the I/O button.

2.

Press and release an input button to select an input.

3.

Press and hold the Audio Conf/Save button until the Conf/Save LED begins

 

to blink. Release the Conf/Save button. The approximate audio level for the

 

selected input is displayed in the input 1 through 4 LEDs and the polarity (+

 

or -) is displayed by the +dB and -dB LEDs.

Each input 1 through 4 LED indicates a range of 6 dB when lit (Input 1 LED: off = 0 db to 5 dB, Input 1 LED: lit = 6 dB to 11 dB, Input 1 and 2 LED: lit = 12 dB to 17 dB, and so on). By noting these LEDs’ displays and counting the

3-8 SW AV Series Switchers • Operation

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Contents SW AV Series Precautions Quick Start SW AV Series Switchers SW AV Series Switchers Quick Start QS-1Quick Start SW AV Series Switchers, cont’d Table of Contents Table of Contents, cont’d One About the Switchers FeaturesVideo switchers Introductiontroduction, cont’dSW AV Series Switchers Introduction Inputs Outputs Model CaptiveVideo Screw Audio All video modelsAudio switchers Captive screw connector a modelsRCA connector a RCA models All audio modelsAll switcher models Introduction, cont’d Two Installation Overview Installationstallation, cont’dMounting the Switcher Mounting the switcher Cabling and Rear Panel ViewsVideo input and output connections video models only Installation, cont’dAudio input and output connections audio models only Captive screw connector wiring for audio inputs Remote connection External sync connectionPower connection Simple external sync connection exampleInstallation, cont’d Three SW AV Series Switchers Operation Front Panel Controls and IndicatorsOperationeration, cont’d SW 8A front panel Input selection controls and indicators Operation, cont’dAudio controls and indicators audio switchers Autoswitch mode controls and indicator video switchersExecutive mode controls and indicator PowerSwitching inputs Front Panel OperationsExample 2 Select a video input only video and audio switcher Example 1 Select an inputAdjusting audio gain and attenuation audio switchers Video switchers must be in normal modeExample 4 Adjust the audio level Not increment or decrement the audio levelExample 4, step E Adjusting the audio level Audio level reset single input Switch modeAudio level reset all inputs Executive mode front panel security lockout Optimizing the Audio Audio SwitchersMemory Troubleshooting If no Image Appears Operation, cont’d Four Host-to-switcher communications SW AV Series Switchers Remote ControlRemoteControl,cont’d Simple Instruction Set ControlSwitcher-initiated messages Error responsesTimeout Using the command/response tableSymbol definitions Remote Control, cont’dCommand Ascii Command Response Additional description Resets Using the software Installing the softwareWindows-Based Program Control Using the help system Infrared Remote ControlContact Closure Control SW 4 and SW 6 Models Only Remote Control, cont’d Specifications and Part Numbers AAppendix aSpecificationsecifications, cont’d SW AV Series Switchers Specifications and Part NumbersAudio Specifications, cont’d Control/remote switcherOptional accessories SwitcherCables Extron PartSuper High Resolution Cable Bulk cables Super High Resolution CableFCC Class a Notice Extron’s Warranty Extron Electronics, USA
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