Sennheiser EM 300-G3 User Manual

If a problem occurs ...

Problem

Possible cause

Possible solution

Receiver cannot be
operated, “

Locked

”

appears on the
display panel

Lock mode is activated

Deactivate the lock mode
(see page 23).

No operation
indication

No mains connection

Check the connections of the mains
unit.

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 22).

Transmission range is exceeded

Check the squelch threshold setting
(see page 38).

Reduce the distance between trans-
mitter 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 24).

If “

TX Mute

” additionally

appears on the display panel:

transmitter is muted or 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 instruc-
tion manual of the transmitter).

Deactivate the pilot tone evaluation
on the receiver (see page 40).

Receiver’s squelch threshold is
adjusted too high

Reduce the squelch threshold
(see page 33).

Reposition the antennas.

Audio signal has a
high level of back-
ground noise

Transmitter sensitivity is
adjusted too low

Adjust the transmitter sensitivity
correctly (see the instruction manual
of the transmitter).