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If a problem occurs ...
You cannot hear anything
Possible cause Solution
Is there a free line
of sight between
receiver and
transmitter?
Remove obstacles in the light path
between receiver and transmitter.
Are transmitter and
receiver exposed to
direct sunlight?
Avoid exposure to direct sunlight.
Is the receiver still
within the
transmitter’s range?
Move the receiver closer to the
transmitter. If necessary, switch
the receiver on again.
Are all connectors
connected correctly?
Check the connection between the
transmitter and your sound source
(see page 7).
Is the operation
indicator B lit?
Check if the transmitter is switched
on (see page 13).
Is the transmitter
set up the wrong
way round?
Set up the transmitter so that
the cables are guided away from
the receiver (see page 6).
Does the receiver’s
Sennheiser logo face
the transmitter?
Wear the receiver the right way
round, with the Sennheiser logo
facing the transmitter.
Is the volume of
the sound source
sufficient?
Set the volume on your sound
source to a medium value.
Is the volume of the
receiver sufficient?
Increase the volume by turning
the volume control 2 on the
receiver (see page 14).
Is the rechargeable
battery inserted
properly into the
receiver and fully
charged?
Check if the channel indicator 1
is lit. If it is not lit: recharge
the rechargeable battery
(see page 19).
Remove the rechargeable battery
and reinsert it into the receiver.
If this doesn’t help: recharge
the rechargeable battery
(see page 19).