67
10 Troubleshooting
Error checklist
Problem
Possible cause
What to do
You hear whistling noise
Microphone volume is adjusted
Reduce the volume with the
too high
microphone volume control
No operation indication
Battery is flat (transmitter)
Replace the battery
No mains connection (EMP 2015)
Check to see if the mains plug is
connected and if the amplifier is
turned on
No RF signal and
Transmitter and/or receiver section
Turn the transmitter and/or
no audio signal
are turned off
receiver section on
Transmission frequency is not the
Set the transmitter and the
same as the receiving frequency
receiver section to the same
frequency
(
“Special adjustments”)
Transmitting antenna is not connected
Connect the antenna
RF signal available but
Transmitter is muted (“
MUTE
”)
Deactivate the muting function
no audio signal
Receiver section’s squelch threshold
Adjust the squelch treshold to a
is adjusted too high
lower value (
“Adjusting the
squelch threshold”)
Microphone is not connected
Connect the microphone
Speaker’s voice too soft
Microphone volume is adjusted
Increase the microphone
too low
sensitivity on the transmitter
or the microphone volume on
the EMP 2015
Microphone is covered or
Position the microphone at
positioned too far from the mouth
the corner of the mouth
Speaker’s voice too loud
Microphone volume is adjusted
Reduce the volume with the
too high
microphone volume control
Speaker’s voice distorted
Transmitter sensitivity is adjusted
Adjust the sensitivity to a lower
too high
value (
“Adjusting the
sensitivity”)
Receiver section’s AF output level is
Reduce the volume with the
adjusted too high
microphone volume control
Volume of sound reproducing
Volume at the line input is adjusted
Reduce the volume of the
device adjusted too high
too high
audio device with the
corresponding volume control