Filter
Top Products
If a problem occurs
18 | SD Series – Setup Guide
If a problem occurs
For causes and solutions that are mainly related to the headset, refer to the chapter “If a problem occurs ...” in
the “User Guide”.
For more information and an FAQ list, please visit our website at www.sennheiser.com/cco.
If a problem occurs that is not listed in the above table or if the problem cannot be solved with the proposed
solutions, please contact your local Sennheiser partner for assistance.
To find a Sennheiser partner in your country, search at www.sennheiser.com/cco/support.
Problem Possible cause Possible solution Page
Headset is placed into the base
station but the Charge status
LED if off
Base station is not connected
to the mains power supply
Connect the base station to the
mains power supply.
7
Rechargeable battery is deep
discharged
Wait several minutes until the
Charge status LED lights up.
12
For quick-charging the headset:
Briefly press the Set button at the
bottom of the base station.
–
Link between headset and
base station cannot be
established
Base station is only connected
via the USB cable
Connect the base station to the
mains power supply.
7
Bad radio link between
headset and base station
Transmission range is
exceeded
Reduce the distance between
headset and base station.
–
Adjust the radio range. 15
Noise interference and
connection loss
Too many DECT systems within
the radio range
Reduce the radio range. 15
Set the base station to
narrowband transmission.
15
Distance between base station
and fixed line phone is so small
that interference occurs
Increase the distance between
base station and fixed line phone.
–
Rechargeable battery cannot
be charged
Headset is not properly placed
into the magnetic holder of the
base station
Check if the headset is properly
placed into the magnetic holder.
12
Bad audio quality, the other
party sounds too loud or too
low
Microphone sensitivity is not
correctly adjusted
Adjust the microphone sensitivity. 16
Sound from the fixed line
phone is distorted and
disturbed
Base station is not adjusted to
the fixed line phone.
Use the ABC switch to adjust the
base station to your fixed line
phone.
16