If A Problem Occurs - Sennheiser evolution wireless series EM 100 Instruction Manual

If a problem occurs ...

Problem
Receiver cannot be
operated, "Locked"
appears on the
display panel
No operation
indication
No RF signal
RF signal available,
no audio signal,
"MUTE" appears on
the display panel
Audio signal has
a high level of
background noise
Audio signal is
distorted
Possible cause
Lock mode is activated
No mains connection
Transmitter and receiver are not
on the same channel
Transmission range is exceeded
Receiver is muted
Transmitter is muted or doesn't
transmit a pilot tone
Receiver's squelch threshold is
adjusted too high
Transmitter sensitivity is
adjusted too low
Transmitter sensitivity is
adjusted too high
Receiver's audio output level is
adjusted too high
If a problem occurs ...
Possible solution
Deactivate the lock mode
(see page 22).
Check the connections of the mains
unit.
Set the transmitter and receiver
to the same channel. To do so,
use the synchronization function
(see page 20).
Check the squelch threshold setting
(see page 33).
Reduce the distance between trans-
mitter and receiving antennas.
Cancel the muting on the receiver
(see page 23).
Cancel the muting on the transmitter
(see the instruction manual of the
transmitter).
Activate the pilot tone transmission
on the transmitter (see the instruc-
tion manual of the transmitter).
Deactivate the pilot tone evaluation
on the receiver (see page 40).
Reduce the squelch threshold
(see page 33).
Reposition the antennas.
Adjust the transmitter sensitivity
correctly (see the instruction manual
of the transmitter).
Adjust the transmitter sensitivity
correctly (see the instruction manual
of the transmitter).
Reduce the audio output level
(see page 36).
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