Extron electronic MVX PLUS 128 Optimizing the Audio, Performing a hard reset, 71 - Hard reset

Performing a hard reset

The hard reset function restores the switcher to the base firmware that it was 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.

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 switcher.

the Reset button while you apply power to the

RESET

LAN

Power

The switcher flashes the 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 and Audio

buttons turn on. RESET

Release the Reset button.

NOTE The Reset button on switchers with matrix sizes of 24 x 12 and above have a different appearance and do not have a rear panel Reset LED.

Figure 3-71 — Hard reset

Optimizing the Audio

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 connections, 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, 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, in this chapter).

MVX Plus 128 VGA Matrix Switchers • Operation 3-43