Extron electronic MVX 88, 48 Adjust the Input Audio Level, All input and output, LEDs turn off

3.Decrease the audio level: Press and release the < button once. The < LED flashes each time the button is pressed

Press and release the < button several more times to continue to decrease the audio level (see figure 13). Note the output LED, +dB LED, and –dB LED changes that occur each time the < button is pressed and released.

Figure 13 shows the result of pressing the < button a total of 9 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 the button to decrease the input audio level by 1 dB per button push.

10	6	3	0	3	+
		VU

A VU meter connected to output 1 indicates

OUTPUTS

1 2 3 4

The Output 1, Output 2, and Output 3 LEDs display the input's audio level range.

+dB -dB

The -dB LED indicates a negative (attenuation) level.

that the adjusted level is approximately the same as the –10 dBV internal level.

The power LED blinks frequently to indicate that the adjusted level is

In this example, the LEDs indicate audio attenuation in the –1 dB to –5 dB range.

properly set.

Figure 13. Adjust the Input Audio Level

NOTE: If you press and release another input button, the switcher saves the

gain value for the current input and displays the gain value for the newly selected input.

4.Exit the Audio Setup mode: Press and release the Audio Setup button. All audio changes are saved.

Press the Audio Setup button to exit Audio Setup mode.

I/O

VID	+dB	All input and output
		LEDs turn off.
AUD	-dB
	AUDIO SETUP

The Audio Setup LED turns off.

MVX 44 / 48 / 84 / 88 VGA Matrix Switchers • Operation 26