If a problem occurs ...

If a problem occurs ...

Problem

Possible cause

Possible solution

Plug-on transmitter

Lock mode is

Deactivate the lock mode

cannot be operated,

activated

(see page 9).

“Locked” appears on

 

 

the display panel

 

 

No operation

Batteries are flat or

Replace the batteries or

indication

accupack is flat

recharge the accupack

 

 

(see page 7).

No RF signal at the

Plug-on trans-

Set the plug-on trans-

receiver

mitter and receiver

mitter to the same channel

 

are not on the

as the receiver.

 

same channel

Synchronize the plug-on

 

 

 

 

transmitter with the

 

 

receiver (see page 17).

 

Transmission range

Reduce the distance

 

is exceeded

between plug-on trans-

 

 

mitter and receiving

 

 

antennas.

 

RF signal is deacti-

Activate the RF signal

 

vated (“RF Mute“)

(see page 9).

 

Receiver is muted

Cancel the muting on the

 

 

receiver (see the instruc-

 

 

tion manual of the

 

 

receiver).

RF signal available,

Plug-on trans-

Cancel the muting

no audio signal,

mitter is muted

(see page 9).

“MUTE” appears on

(MUTE)

 

the display panel

Receiver’s squelch

Reduce the squelch

 

 

threshold is

threshold setting on the

 

adjusted too high

receiver.

 

Plug-on trans-

Activate or deactivate the

 

mitter doesn’t

pilot tone transmission

 

transmit a pilot

(see page 16).

 

tone

 

Audio signal has a

Plug-on trans-

Adjust the input sensi-

high level of back-

mitter’s sensitivity

tivity (see page 13).

ground noise or

is adjusted too

 

audio signal is

low/too high

 

distorted

 

 

 

 

 

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”.

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