Sennheiser Rack-mount Receivers EM 2050 - Manual (Page 36)

If a problem occurs ...
35
If a problem occurs ...
Problem Possible cause Possible solution
Receiver cannot be oper-
ated, “
Locked ” appears
on the display panel
Lock mode is activated Deactivate the lock mode (see page 15).
No operation indication No mains connection Check the connections of the mains cable.
No RF signal Transmitter and receiver are not on the
same channel Set the transmitter and receiver to the same
channel. To do so, use the synchronization
function (see page 15).
Transmission range is exceeded Check the squelch threshold setting
(see page 18).
Reduce the distance between transmitter
and receiving antennas.
RF signal available,
no audio signal,
“
MUTE ” appears on the
display panel
If “ RX Mute ” additionally appears on the
display panel:
receiver is muted
Cancel the muting on the receiver
(see page 16).
If “ TX Mute ” additionally appears on the
display panel:
transmitter is muted (“ MUTE ”) or
transmitter doesn’t transmit a pilot tone
Cancel the muting on the transmitter (see
the instruction manual of the transmitter).
Activate the pilot tone transmission on the
transmitter (see the instruction manual of
the transmitter).
Deactivate the pilot tone evaluation on the
receiver (see page 27).
Receiver’s squelch threshold is adjusted
too high Reduce the squelch threshold (see page 18).
Reposition the antennas.
Audio signal has a high
level of background noise Transmitter sensitivity is adjusted too low Adjust the transmitter sensitivity correctly
(see the instruction manual of the trans-
mitter).
Audio signal is distorted Transmitter sensitivity is adjusted too high Adjust the transmitter sensitivity
correctly (see the instruction manual
of the transmitter).
Receiver’s audio output level is adjusted too
high Reduce the audio output level
(see page 25).
No access to a certain
channel During scanning, an RF signal has been
detected on this channel and the channel
has been locked Set the transmitter operating on this
channel to a different channel and redo
the frequency preset scan (see page 18).
During scanning, a transmitter of your
system operating on this channel has not
been switched off Switch the transmitter off and redo the
frequency preset scan (see page 18).