user manual

If a problem occurs ...
35
If a problem occurs ...
If a problem occurs that is not listed in the above table or if the problem cannot be solved with the proposed solutions,
please contact your local Sennheiser partner for assistance.
To find a Sennheiser partner in your country, search at www.sennheiser.com under “Service & Support”.
Problem Possible cause Possible solution
Transmitter cannot be
operated, “Locked” appears on
the display panel
Lock mode is activated Deactivate the lock mode (see page 14).
No operation indication No mains connection Check the connections of the mains cable.
No RF signal at the receiver Transmitter and receiver are not
on the same channel
Synchronize the transmitter with the receiver
(see
page 15 ).
If “RF Mute” additionally appears
on the transmitter display:
RF signal is deactivated
Activate the RF signal (see page 14).
Very weak RF signal at the
receiver
Transmission range is exceeded Reduce the distance between receiver and
transmitter.
Reposition the antennas.
Increase the transmission power (see page 19).
Reduce the squelch threshold (see the
instruction manual of the receiver).
RF signal available,
no audio signal at the receiver
No input signal at the transmitter Check the audio level on the transmitter display
(see page 7)
Very low input signal Check the audio level on the transmitter display
(see page 7), increase the level of the input
signal or adjust the input sensitivity (see
page 19).
Audio signal has a high level of
background noise
Transmitter sensitivity is adjusted
too low
Adjust the transmitter sensitivity correctly
(see page 19).
Audio signal is distorted If “AF PEAK” additionally appears
on the transmitter display:
transmitter sensitivity is adjusted
too high
Adjust the transmitter sensitivity correctly
(see page 19).
Receiver’s audio output level is
adjusted too high
Reduce the audio output level of the receiver.