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If a problem occurs ...
If a problem occurs ...
Problem Possible cause Solution Page
No operation
indicator –
headphones
cannot be
switched on
The battery pack
is flat.
Recharge the battery pack. 9
No audio
signal when
the audio cable
is connected
The jack plug of
the audio cable
is not properly
connected.
Check the connection to
your audio source.
16
No audio
signal during
Bluetooth
connection
The headphones
are switched off.
Switch the headphones on. 12
The headphones
are not paired
with an audio
source.
Check if the headphones are
paired. If necessary, pair the
headphones with the audio
source again.
13
The Bluetooth
function on the
headphones is
switched off.
Switch the Bluetooth func-
tion on the headphones on.
18
The audio cable is
connected to the
headphones.
The connection of the
audio cable automatically
switches off the Bluetooth
connection. Remove the
audio cable and then switch
the Bluetooth function on
again.
16
The volume is
adjusted too low.
Increase the volume. 18
Headphones
cannot be
paired
The pairing does
not work.
Check if the audio source
supports the A2DP profile. If
not, use one of the optional
dongles.
–
The audio source
is switched off.
Switch the audio source on. 13
No audio
signal during
NoiseGard
operation
The headphones
are switched off.
Switch the headphones on. 12
The TalkThrough
function is
switched on.
When in Talk-
Through mode,
the audio signal
is not available.
Switch the TalkThrough
function off.
18