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If a problem occurs ...
S1 DIGITAL | 29
If a problem occurs ...
Problem Possible cause Solution Page
Power LED H
does not light
up on switch-on
The batteries/recharge-
able batteries are flat.
Charge the rechargeable
batteries or replace the
batteries.
9
The aircraft fuse is
defective.
Check the aircraft fuse.
No audio
signal during
Bluetooth
connection
The headset is switched
off.
Switch the headset
and the Bluetooth
function on.
17
The headset is not paired
with a Bluetooth device.
Pair the headset with
a Bluetooth device.
12
The Bluetooth function
is switched off.
Switch the Bluetooth
function on.
17
Headset cannot
be paired
The pairing does not work. Check if the audio source
supports the A2DP pro-
file. If not, use one of the
optional stereo audio
transmitters.
30
The audio source is
switched off.
Switch the audio source
on
12
Headset does
not react to any
button press
The operation of the
headset is faulty.
Change the batteries/
rechargeable batteries.
9
No active noise
compensation
NoiseGard
TM
/digital is
switched off.
Switch NoiseGard
TM
/
digital on.
17
The aircraft fuse is
defective.
Check the aircraft fuse.
Very low
volume commu-
nication even
though Noise-
Gard
TM
/digital is
switched on
The volume is set too low. Increase the volume.
18
The headset is not con-
nected correctly.
Check the jack plugs of
the headset.
8
Audio signal in
one ear only
You are receiving a mono
source but the headset is
set to stereo operation.
Set the headset to mono
operation.
19
The Master VOLUME slide
control I is misadjusted.
Check the Master
VOLUME I slide control.
19