Extron electronic 450 Plus Optimizing the Audio Systems with Audio BMEs, Performing a hard reset

Performing a hard reset

The hard reset function restores the switcher to the base firmware that it shipped with. After a hard reset, events do not automatically start, but user settings and files are restored. Perform a hard reset as follows:

NThe hard reset restores the factory-installed firmware. The switcher reverts to that factory firmware the next time power is cycled off and on unless a firmware update is performed before the power cycle.

NHard reset does not clear the current configuration.

1.If necessary, turn off power to the switcher.

2.Press and hold the Reset button on the rear panel while you apply AC power to the switcher (figure 3-71).

Press and hold the Reset button while you apply power to the switcher.

Rx

RESET

Power

The switcher flashes the front panel button

indicators green, red, and amber and then turns them off.

Continue to hold the Reset button until all input and output buttons return to either unlit or to background illumination and the RGBHV or Video and Audio buttons turn on.

Rx

Release the Reset button.

RESET

Figure 3-71 — Hard reset

Optimizing the Audio (Systems with Audio BMEs)

Each individual input audio level can be adjusted within a range of -18 dB to

+24 dB, so there are no noticeable volume differences between sources and for the best headroom and signal-to-noise ratio. Adjust the audio gain and attenuation as follows:

1.Connect audio sources to all desired inputs and connect the audio outputs to output devices such as audio players. See Audio input and output (systems with audio BMEs), in chapter 2, Installation. For best results, wire all of the inputs and the outputs balanced.

2.Power on the audio sources, the switcher, and the audio players.

3.Switch among the inputs (see Creating a configuration, in this chapter), listening to the audio with a critical ear or measuring the output audio level with test equipment, such as a VU meter.

4.As necessary, adjust the input audio level of each input (see Viewing and adjusting the input audio level (systems with audio BMEs), in this chapter) so that the approximate output level is the same for all selected inputs.

5.As necessary, adjust the output audio level of each input (see Viewing and adjusting the output volume (systems with audio BMEs), in this chapter).

CrossPoint 450 Plus and MAV Plus Switchers • Operation 3-45