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Switch modes, Determining the switch mode, Selecting a switch mode – Extron Electronics SW6 VGA A User Manual

Page 11: Audio level control, Adjusting the audio level, Switch modes -10, Audio level control -11, Adjusting the audio level -11, Installation and operartion, cont’d

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SW6 VGA Audio • Installation and Operation

Installation and Operartion, cont’d

2-10

SW6 VGA Audio • Installation and Operation

2-11

Audio level control

The audio level setting for the

selected input can be viewed

and changed (within a range of

-15 dB to +9 dB), to ensure that

there is no noticeable volume

difference among sources.

Adjusting the audio level

View or change the audio input

level as follows:
1

.

Select an input.

2

.

Press and hold the Audio

Configuration/Save

button until the Audio

Configuration/Save LED

blinks. Release the button.

The Input LEDs indicate

the audio level. The +dB

and –dB LEDs display

the polarity (+ [gain] or

– [attenuation]).

• Each Input LED

shows a range of 3 dB:
°

Slow blink = 1 dB

°

Fast blink = 2 dB

°

Lit = 3 dB

• The +dB LED lit

indicates a positive

(gain) level. The

–dB LED lit

indicates a negative

(attenuation) level. Both LEDs lit indicate 0 dB.

3

.

Press and release the

>

(Input 5) or

<

(Input 6) buttons to

increase or decrease the audio level by 1 dB.

4

.

Press and hold the Audio Configuration/Save button until

the Audio Configuration/Save LED goes out. Release the

button.

N

• There is one audio gain or attenuation setting per input.

The setting is shared by the left and right audio inputs.

• The input audio gain or attenuation settings are stored

in non-volatile memory. When power is removed and

restored, the audio level settings are retained.

Switch modes

The SW6 VGA Audio switcher operates in manual or auto

switch mode.
Manual switch mode — Input selection is done using

Input buttons 1 through 6 on the front panel or through

the rear panel Remote connector (contact closure or

RS-232).

Auto switch mode — The switcher automatically selects

the highest number input that has sync pulses available.

Input selection by the front panel switches or through the

Remote connector is blocked.

Determining the switch mode

To determine which mode is active, press and release an

unselected input button.
Normal switch mode — That input becomes the selected

input.

Auto switch mode — The switcher does not select the input

associated with the button that you pushed.

Selecting a switch mode

Switch between modes by pressing and holding the Mode

(Input 1 button) and either the Normal (Input 2) or Auto

(Input 3) button until either the Normal or Auto LED blinks

(figure 2-10).

Press and

HOLD.

1 sec.

The blinking LED

indicates the mode.

Release the buttons.

Figure 2-10 — Selecting a switch mode

+dB

Input LED

dB
+9

+8

+7

+6

+5

+4

+3

+2

+1

0

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

-13

-14

-15

S

F

S

F

S

S

F

F

S

-dB

+dB -dB

6

5

4

3

2

1

6

5

4

3

2

1

F

S

F

S

F

S

F

S

F

= off, = blinking slowly,
= blinking fast, = on

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