Sennheiser evolution wireless series EM 100 User Manual download pdf (Page 48)

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 22).

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 20).

Transmission range is exceeded Check the squelch threshold setting

(see page 33).

Reduce the distance between trans-

mitter and receiving antennas.

RF signal available,

no audio signal,

“MUTE” appears on

the display panel

Receiver is muted Cancel the muting on the receiver

(see page 23).

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

background noise

Transmitter sensitivity is

adjusted too low

Adjust the transmitter sensitivity

correctly (see the instruction manual

of the transmitter).

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 36).

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Sennheiser evolution wireless series EM 100 User Manual Page 48

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