User manual

20
Troubleshooting
PROBLEM SOLUTION
The link to a Blue-
tooth headset is active
(the BlueAir adap-
tor’s green LED is on
continuously) but no
sound can be heard
from the audio sys-
tem.
Press the headset’s call button (to deactivate the
link) and then press it again to re-activate it. If
this doesn’t work, re-pair with the headset and:
1. Ensure the BlueAir adaptor’s output jack
(black ring) is connected to one of the audio
system’s input sockets and the correct input is
selected
2. Turn the audio system’s volume up until the
sound source can be heard. If the sound is too
quiet, even with the volume turned to maximum,
the BlueAir adaptor’s output level is too low for
the audio system. The audio adaptor’s output
cannot be adjusted but it may be possible to
increase the volume by a) moving the bluetooth
headset nearer the sound source or b) boosting
the BlueAir adoaptor’s output using a pre-ampli-
fier
A very quiet but
continuous, irregular
crackling, clicking or
tinkling sound is heard
form the audio system
when the link with a
headset is active.
This low level background noise is normal but
may become louder when the separation be-
tween the headset and the BlueAir adaptor is
approaching the 10m maximum or ther are solid
obstructions between them.
An obtrusive crackling
noise is heard from the
audio system corre-
sponding with peaks
in the sound source’s
volume.
This distortion is caused by the sound source be-
ing too loud for the headset’s microphone. It can
be cured by moving the headset further away
from the sound source.
The audio system
makes a loud howling
noise when the link to
a Bluetooth headset is
activated.
The noise is called feedback. It is caused when
the headset’s microphone picks up too much
sound from the audio system’s speakers. To
prevent it, move the headset as far away as pos-
sible from the sound system’s speakers.