Troubleshooting Guide - Electro-Voice N/DYM SERIES User Manual

ENGLISH

5 Troubleshooting Guide

Problem
No audio & no lights
on receiver
No audio & no Tx ON
light on receiver
No audio
Low audio signal.
Distorted audio signal.
Interference
Short range or drop-outs.
Possible Causes
Receiver is off
Transmitter is off.
No ( or dead ) battery in
transmitter.
Faulty battery contacts in
transmitter.
Transmitter audio switch
is off (signal is muted).
Receiver audio cable is damaged
or disconnected.
Gain not sufficient on mixer/
preamp/amp input.
Gain set too low (or muted) on
mixer/preamp/amplifier.
Receiver audio too low (1/4" output).
Transmitter audio level too low.
Transmitter audio level too high
(overloading transmitter circuit)
Receiver audio set too high
(1/4" output).
Battery level low in transmitter.
Another wireless product in the
immediate area, operating on the
same frequency, or on a frequency
that mixes with another RF signal
(such as a TV broadcast transmitter).
Receiver placed too close to a digital
signal processor or similar device.
Strong electromagnetic field from
stage lighting or other source near
the transmitter or receiver, which may
be producing RF noise on or near the
operating frequency.
RF reflective metal obstacles
between transmitter & receiver.
Poorly oriented beltpack antenna.
Faulty receiving antenna system.
Solutions
Make sure that power supply is
properly connected and providing
power to the receiver.
Turn on transmitter power switch.
Insert fresh battery in transmitter.
Clean contacts.
Turn on transmitter audio switch.
Connect, repair, or replace cable.
Increase mixer/preamp/amplifier
gain setting.
Increase gain setting on mixer/
preamp/amplifier.
Increase receiver audio volume setting.
Increase transmitter audio gain setting.
Decrease transmitter audio gain setting.
Decrease receiver audio level setting.
Insert fresh battery in transmitter.
Change operating frequency. If
interference is weak, keep transmitter
on at all times (to override interfering
signal) whenever receiver is on.
Move receiver to a different location.
Change operating frequency. Repair or
remove source of interference. Move
receiver to a different location.
Move the obstacles, or reposition the
receiver.
Reorient bodypack so that antenna is
positioned vertical (up and down) and
facing receiver, if possible.
Reposition antennas or receiver.