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If problems occur ...
Error checklist
If problems occur that are not listed in the above table or if the
problems cannot be solved with the proposed solutions, please
contact your local Sennheiser agent for assistance.
Problem Possible cause Possible solution
No
operation
indication
Batteries are flat or
accupack is flat
Replace the batteries
or recharge the
accupack
No RF signal Transmitter and
receiver are not on the
same channel
Set transmitter and
receiver to the same
channel
Transmitter is out of
range
Check the squelch
threshold setting
or change the position
of the transmitting
antenna
RF signal
available,
no audio
signal,
“MUTE”
display
appears on
the display
panel
Receiver’s squelch
threshold is adjusted
too high
See “Adjusting the
squelch threshold –
SQELCH” on page 25
Transmitter does not
transmit a pilot tone
Set the transmitter to
stereo operation or
deactivate the pilot
tone evaluation on the
receiver
No access to
a certain
channel
During scanning, an RF
signal has been
detected on this
channel and the
channel has been
locked
See “Scanning the
channel bank for free
channels – SCAN” on
page 25