Extron electronic SW AV manual Example 4, step E Adjusting the audio level

Page 30

Operation, cont’d

If the +dB and -dB LED are both lit they indicate 0 dB. Otherwise, you can determine the exact gain or attenuation using the following procedure.

1.

If one or more input LEDs are lit AND the +dB LED is lit, press and

 

release the

button repeatedly until the highest-numbered lit input

 

LED goes out. Count the button presses. In Example 4, assume a value

 

of +8 dB. It will take three presses of the

button for the Input 1 LED

 

to go out.

 

 

 

If one or more input LEDs are lit AND the -dB LED is lit, press and

 

release the

button repeatedly until the highest-numbered lit input

 

LED goes out. Count the button presses.

 

 

If the +dB LED is lit and NO input LEDs are lit, press and release the

 

button repeatedly until the +dB and -dB LED are both lit, indicating 0

 

dB. Count the button presses.

 

 

If the -dB LED is lit and NO input LEDs are lit, press and release the

 

button repeatedly until the +dB and -dB LED are both lit, indicating 0

 

dB. Count the button presses.

 

2.

Return to the original audio level setting by pressing and releasing the

 

or button (the opposite of the button you pushed in step 1) the

 

same number of steps you pushed the opposite arrow button in step 1.

 

In Example 4, this means pushing the

button three times.

3.

Add the dB value indicated by the highest-numbered lit input LED (no

 

input LEDs lit = 0 dB) and either:

 

 

The number of button presses from 0 dB or,

 

The number of button presses from when the highest-numbered input

 

LED lit. In Example 4, Input 1 LED (6 dB) + 2 presses (2 dB) = 8 dB.

4.

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

EPress and release the button several times to decrease the audio level displayed in the input LEDs by 1 dB per button push. The LED flashes each time the button is pressed. Note the input LED, +dB LED, and -dB LED changes that occur each time the button is pressed and released. Figure 3-9 shows the result of pressing the button a total of nine 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.

Press and hold

Press (9 times)

F

 

 

 

 

 

 

 

 

E

CONF/SAVE

 

 

 

 

 

 

 

 

B1

LED key:

 

= off,

= on,

 

= 1 blink

 

 

 

B1

 

 

(9 times)

1

2

3

4

5

6

7

8

 

AUDIO

 

 

-dB

+dB

CONF/SAVE

 

E

E

E Indicates 0 dB to -6 dB range

F

 

Figure 3-9 — Example 4, step E: Adjusting the audio level

FPress and hold the Audio Conf/Save button until the Audio LED goes off. The input LEDs stop displaying the audio level range, the +dB and -dB LEDs go off, and the selected input LED lights.

3-10 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 Video switchers About the SwitchersFeatures Introductiontroduction, cont’dVideo Screw Audio SW AV Series Switchers IntroductionInputs Outputs Model Captive All video modelsRCA connector a RCA models Audio switchersCaptive screw connector a models All audio modelsAll switcher models Introduction, cont’d Two Installationstallation, cont’d Installation OverviewMounting the Switcher Mounting the switcher Cabling and Rear Panel ViewsInstallation, cont’d Video input and output connections video models onlyAudio 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 Front Panel Controls and Indicators SW AV Series Switchers OperationOperationeration, 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 switchersSwitching inputs Executive mode controls and indicatorPower 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 Switch mode Audio level reset single inputAudio level reset all inputs Optimizing the Audio Audio Switchers Executive mode front panel security lockoutMemory Troubleshooting If no Image Appears Operation, cont’d Four RemoteControl,cont’d Host-to-switcher communicationsSW AV Series Switchers Remote Control Simple Instruction Set ControlTimeout Switcher-initiated messagesError responses Using the command/response tableRemote Control, cont’d Symbol definitionsCommand Ascii Command Response Additional description Resets Installing the software Using the softwareWindows-Based Program Control Infrared Remote Control Using the help systemContact 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 switcherCables Optional accessoriesSwitcher Extron PartSuper High Resolution Cable Bulk cables Super High Resolution CableFCC Class a Notice Extron’s Warranty Extron Electronics, USA
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