Extron electronic MAV Plus - Manual (Page 75)

3-45 CrossPoint 450 Plus and MAV Plus Switchers • Operation
PRELIMINAR
Y
Performing a hard reset
The hard reset function restores the switcher to the base fi rmware that it shipped
with. After a hard reset, events do not automatically start, but user settings and
fi les are restored. Perform a hard reset as follows:
N The hard reset restores the factory-installed fi rmware. The switcher reverts to
that factory fi rmware the next time power is cycled off and on unless a fi rmware
update is performed before the power cycle.
N Hard reset does not clear the current confi guration.
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 (fi gure 3-71).
Power
RESET
Rx
RESET
Rx
Press and hold the Reset button while you apply power to the switcher.
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.
Release the Reset button.
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 confi guration, 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).