Extron electronic MAV 44, MAV 88, MAV 84, MAV 48 manual +2 dB, Adjust the input audio level

Operation, cont’d

b. Return to the original audio gain setting by pressing and releasing the or button (the opposite of the button you pressed in step a) the same number of steps you pressed the opposite arrow button in step 1. In example 8, this means pressing the button three times.

c. Add the dB value indicated by the highest-numbered lit output LED (no output LEDs lit and both dB LEDs lit = 0 dB) and either of the following:

•The number of button presses from 0 dB, or

•The number of button presses from when the highest-numbered output LED lit. In example 8:

Output 1 LED:	6 dB
+ 2 presses:	+2 dB
	8 dB

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

3.	Press and release the		button once to decrease the audio level (figure 3-34).
	The	LED flashes each time the button is pressed.

Press and release the button several more times to continue to decrease the audio level (figure 3-34). Note the output LED, +dB LED, and –dB LED changes that occur each time the button is pressed and released.

Figure 3-34 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.

					10 6	3	0 3 +
						VU
Press the	button to
decrease the input audio level					A VU meter connected
by 1 dB per button push.			OUTPUTS		to output 1 indicates
					that the adjusted level
	1	2	3	4
					is approximately the
				+dB
					same as the –10 dBV
				-dB
					internal level.

	The -dB LED
The Output 1, Output 2, and Output 3	indicates a negative
LEDs display the input's audio level range.	(attenuation) level.

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

= lit, = unlit, = flickering LED

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

Figure 3-34 — Adjust the input audio level

If another input button is pressed and released, the gain value for the current input is saved and the gain value for the newly selected input is displayed.

4. Press and release the Audio Setup button (figure 3-35). All audio changes are saved.

Press the Audio Setup button to exit Audio Setup mode.

I/O

VID +dB AUD -dB

AUDIO SETUP

All input and output LEDs turn off.

The Audio Setup LED turns off.

Figure 3-35 — Exit Audio Setup mode

3-22 MAV 44 / 48 / 84 / 88 Matrix Switchers • Operation