Electro-Voice PXM-12MP Series, Руководство по установке

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24 en | Troubleshooting PXM-12MP Powered Monitor
2019-10 | v01 | F.01U.363.983 Installation manual Electro-Voice
Problem Possible Cause(s) Action
7. Microphone
produces acoustic
feedback when
input level is
amplified Incorrect gain
structure Reduce the microphone levels at the mixing console or
input source. If the microphone is connected directly to
the speaker, reduce the input level on the speaker.
Positioning the microphone close to the sound source
increases gain-before-feedback. See problem 6.
Microphone position
is too close to the
front of the
loudspeaker Adjust FEEDBACK frequency until the feedback
frequency is found. See
DSP control menu, page 16 .
8. DSP menu is locked The Menu Lock
function has been
turned on. A lock
symbol displays on
the LCD screen.
Press and hold the MASTER VOL knob for 5 seconds.