Extron electronic 450 Plus manual Viewing and adjusting the output volume systems with audio BMEs

NYou can press and hold the Esc (>) or View (<) button to ramp the level up or down by 3 dB per second to the high or low limit.

5.Press and release the Audio button (figure 3-58).

Press the Audio button to exit audio mode.

	I / O
			All input buttons and output buttons
VIDEO		AUDIO
			return to unlit or background illumination.

The Audio button stops blinking and lights red. The RGBHV or Video button lights green.

Figure 3-58 — Deselect Audio mode

Viewing and adjusting the output volume (systems with audio BMEs)

On MAV Plus audio BMEs, the audio level of each output can be displayed and adjusted through a range of 100% (no attenuation) to 0% (maximum [98 dB] attenuation). The audio level can be adjusted from the front panel or under RS-232/RS-422 or Ethernet control.

1.Press the Esc button to clear any input buttons, output buttons, or control buttons that may be lit.

2.To enter Audio mode, press and hold the Audio button until the button begins to blink red, then release the button.

3.Press and release an output button to select an output. The input buttons display the volume level for the selected output. The switcher indicates the volume; the more buttons that are lit, the higher the volume. The fewer buttons that are lit, the lower the volume.

For a more detailed analysis of decoding the displayed value, see Reading the displayed volume on the next page.

4.Press and release the Esc (>) and View (>) buttons to increase and decrease the audio volume.

5.Press and release the Audio button to save the audio settings and exit the Audio mode. The Audio button stops blinking.

N• There is one audio volume level setting per output. The audio level setting is shared by the left and right audio inputs.

•The audio volume levels are stored in non-volatile memory. When power is removed and restored, the audio level settings are retained.

•Exiting Audio mode by pressing the Audio button always returns the I/O buttons to Video lit green and Audio lit red (video and audio selected for configuration).

•Pressing the Enter or Preset button also exits Audio mode. Pressing the Preset button changes to Recall Preset mode.

CrossPoint 450 Plus and MAV Plus Switchers • Operation 3-35