Troubleshooting - Electro-Voice EVERSE 8 User Manual

EVERSE 8
8

Troubleshooting

Problem
1. No sound
2. Poor Low-
Frequency
Response
3. Intermittent output
such as cracking or
distortion
4. Constant noise
such as buzzing,
hissing or humming
Electro-Voice
Possible Cause(s) Action
Improper gain Verify all the sources are on. If the source is a condenser
microphone, make sure the mic is plugged into INPUT 1
via XLR and phantom power is enabled in the menu.
Inspect the VU meters on LCD or in the app. If there is
signal present on the VU meters, increase the input and
gain controls to the required level. If there is no signal
present on the VU meters, then check the wiring.
Sources not Check all cables between the source and the
connected loudspeaker with a multimeter or cable tester. Replace
any suspect cables with a known good cable.
With SUB menu If no subwoofers are used with the system, select the
cross-over frequency OFF position.
activated
SPEECH mode is In the DSP control menu, change the MODE to MUSIC,
active LIVE, or CLUB. Refer to DSP controls, page 34 for more
details.
Input PRESET is not In the INPUT DSP control menu, change PRESET to
FLAT. Refer to INPUT DSP control menu, page 46 for
set to FLAT
more details.
EQ is active In the INPUT and DSP control menu, reset all EQs in the
low frequencies. Refer to DSP controls, page 34 and
INPUT DSP control menu, page 46 for more details.
Faulty connection Check all connections at loudspeaker to ensure they are
all clean and tight. If the problem persists, check the
wiring. See problem 1.
Defective source or If noise is present, but no program material is playing,
other electronic evaluate each component as necessary to isolate the
device problem. Most likely there is a break in the signal path.
Poor system Check and correct the system grounding, as required.
grounding or ground
loop
Input gain is not at a Slowly increase the INPUT LEVEL to engage the
microphone level. microphone pre-amp.
Mobile device is Some mobile devices, such as laptops and mobile
connected via USB phones, may introduce ground loops if the loudspeaker is
and 3.5 mm jack charging the mobile device while simultaneously
simultaneously. connected via the 3.5 mm audio input jack. Connect the
audio via Bluetooth®, or disconnect from the USB jack.
User manual
Troubleshooting | en 55
2022-10 | 02 | F.01U.401.530