Sennheiser EMP 2015 manual Troubleshooting, Error checklist, Problem Possible cause What to do

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

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