If A Problem Occurs - Sennheiser MM 550 Instruction Manual

If a problem occurs ...

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