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If problems occur...
Error checklist
If problems occur that are not listed above or if the problems cannot be solved with
the proposed solutions, please contact your local Sennheiser agent for assistance.
Problem Possible cause Possible solution
Receivers cannot be
switched on
Receivers are not powered Check the connections of
the mains unit or the DC
connections
Disturbed reception or no
reception
Transmitting antennas are
not within the range of the
receiving antennas
Reduce the distance
between transmitter and
receiving antennas
Transmitters or receivers
are not switched on
Switch the transmitters or
receivers on
Antennas are not
connected correctly
Check the antenna
connections
Connecting cables are
defective
Replace the connecting
cables
Too high cable attenuation
due to too long antenna
cables or wrong type of
antenna cable
Only use the
recommended antenna
cables (see ”Accessories“
on page 21)
or use shorter antenna
cables
Transmitters and receivers
are not on the same
frequency
See operating manual of
the transmitter or receiver