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5. TroubleshootingGuide

Problem Possible Causes Solutions

No audio & no lights on
receiver
No audio & noTx ON
light on receiver
No audio
Low audio signal
Distorted audio signal
Interference
Short range or drop-outs
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 dam-
agedor 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”/6.4mm output)
Transmitter audio level too low
Transmitteraudio level too high
(overloadingtransmittercircuit)
Receiveraudioset too high (1/4”
6.4mm output)
Battery level low in transmitter
Anotherwireless product in the
immediatearea,operating on the
same frequency, or on a fre-
quencythat mixes with another
RFsignal (such as a TV broad-
cast transmitter).
Receiver placed too close to a
digitalsignal processor or simi-
lar device.
Strong electromagnetic field
from stage lighting or other
sourcenear the transmitter or re-
ceiver,which may be producing
RFnoise on or near the operat-
ing frequency.
RF reflective metal obstacles
between transmitter & receiver.
Poorly oriented beltpack an-
tenna
Faultyreceivingantenna system
Makesure that power supply is prop-
erlyconnected 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
Increasemixer/preamp/amplifier gain
setting
Increase gain setting on
mixer/preamp/amplifier
Increasereceiveraudio volume setting
Increasetransmitteraudio gain setting
Decrease transmitter audio gain set-
ting
Decrease receiver audio level setting
Insert fresh battery in transmitter
Change operating frequency. If inter-
ferenceis weak, keep transmitter on at
all times (to override interfering sig-
nal) whenever receiver is on.
Move receiver to a different location
Changeoperatingfrequency. 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
positionedvertical (up and down) and
facing receiver, if possible
Reposition antennas or receiver