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If a problem occurs ...
Problem
Possible cause
The transmit-
No connection to the power
ter does not
supply system.
switch on
The rechargeable battery is
empty.
The head-
phones cannot
The rechargeable battery is
be switched on
deep discharged.
No connection to the power
supply system.
The audio plug is not properly
connected.
The audio source is switched
off.
The wrong audio source is
selected.
No sound
The volume of the analog audio
source is either set to the mini-
mum or is on mute.
The audio cable is defective.
The stethoset receiver is not
correctly paired with the trans-
mitter (e.g. additional stethoset
receiver/receiver).
The analog audio input is
selected.
No audio signal
The connected digital audio
when a digital
source uses an incompatible
audio source is
audio format. The
connected
status
blue.
The stethoset receiver is out of
the transmitter's range.
Occasional
sound drop-
The signal is shielded.
outs, it might
be that you
hear 5 beeps
There are interfering devices
via the receiver
(e.g. WiFi router, Bluetooth
devices or microwaves) in the
vicinity.
Transmitter
LED flashes white and
Possible solution
Check the connections of the
power supply unit.
Recharge the rechargeable bat-
tery.
Recharge the rechargeable battery
for several hours. If the recharge-
able battery is deep discharged,
the charging process might take a
while to start (up to 1 hour).
Check the connections of the
power supply unit.
Check the audio plug connection.
Switch the audio source on.
Switch between the audio sources.
Increase the volume on the audio
source to at least a medium level/
deactivate the muting function on
the audio source.
Replace the audio cable.
Pair the stethoset receiver with the
transmitter again.
Switch between the audio sources.
Set the audio format of your audio
source to "PCM", with a sampling
rate of max. 96 kHz (see the
instruction manual of the audio
source).
Reduce the distance between the
stethoset receiver and the trans-
mitter.
Remove obstacles between the
transmitter and the stethoset
receiver.
Change the position of the trans-
mitter or of the receiver.
Separate the transmitter from
other wireless devices by at least
50 cm/20".
If a problem occurs ...
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Set 880 | 43
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