Electro-Voice ZLX-12P-UX User Manual page 28

ZLX Series
Problem
7. Microphone
produces acoustic
feedback when
input level is
amplified
8. DSP menu is locked The Menu Lock
If these suggestions do not solve your problems, contact your nearest Electro-Voice dealer or
Electro-Voice distributor.
See also
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2015.12 | 02 | F.01U.319.253
Possible Cause(s) Action
Incorrect gain Verify level controls of the source are properly structured
structure or source by using the VU meter indicator on the LCD screen. If the
input (mixing VU meter bar is solid or the system indicates LIMIT, the
console/preamp) is input or source level is too high.
overdriven
Incorrect gain Reduce the microphone levels at the mixing console or
structure 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.
MODE is set to Change the MODE to LIVE or SPEECH.
MUSIC
Microphone position Whenever possible setup the loudspeakers so the
is too close to the microphone is behind them. If using the loudspeaker in a
front of the monitor position, aim the loudspeaker to the back of the
loudspeaker microphone.
Press and hold the MASTER VOL knob for 5 seconds.
function has been
turned on. A lock
symbol displays on
the LCD screen.
DSP controls, page 15
System Status, page 14
Full-Range loudspeaker DSP control menu, page 16
User Manual Electro-Voice