8ENGLISH
13 Press and hold the AUTO-TUNING BUTTON on the headphone for
about 1 second to tune to the correct transmission channel.
The headphone will automatically tune to the transmitter.
14 In case interference from neighbouring transmitters has occured, adjust
the transmission channel of the transmitter, then repeat step 13 to tune
the headphone to the transmitter.
15 Adjust the volume of the headphone to the desired listening level.
IMPORTANT!
Avoid adjusting the listening volume level at the audio source as
this may compromise the audio quality on too low input levels.

Problem solving

If a fault occurs, first check the points listed below. If you are unable to
remedy a problem by following these hints, contact the helpline
(see ‘Need help?’) or consult your dealer.
Never try to open the set yourself as this will void the guarantee.
First, check all cables to ensure that they are connected correctly.

Problem Possible Cause Solution

Headphone fails No battery installed Follow step 1 to 4 of
to charge ‘Installing/replacing the batteries’
Wrong battery orientation Reposition the batteries according to
the engraved polarity symbol.
No power supply Make sure the docking station is
connected to the local mains power
supply through an adapter and follow
steps 5 to 7.
Charging pin of the docking station Lock the headphone in place, and
not in contact with the metal make sure the CHARGE
plate of the headphone INDICATOR light is on.
Wrong headphone orientation Reposition the headphone with
when placed onto the charging correct orientation.
dock
No sound/ Headphone power off Push the POWER ON/OFF
distorted sound BUTTON. The POWER ON/OFF
INDICATOR light turns on automatically
indicating the headphone is on.
No battery installed Follow step 1 to 4 of
‘Installing/replacing the batteries’
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