User manual

Page 7
10. Troubleshooting/FAQs
Speaker doesn’t work at all, no sound from the speaker:
• Check that the power connector on your power supply is suitable for the power
socket on the speaker (2.1mm, centre positive).
• Check that you have switched your radio communication equipment on and that you
have a signal for the speaker to process. To verify this, remove the audio connector
from the external speaker socket on your equipment.
• Check that the DESKTOP Power LED is on.
The speaker works but the noise cancellation doesn’t appear to improve the audio
quality of the signal:
• Check that the filter is switched on (green or orange LED).
• Increase the filter level to see if this makes a difference.
• Increase the volume on the audio source.
4. Troubleshooting/FAQs
The volume from the speaker is low and cannot be increased:
• The speaker is designed to work with the external speaker sockets of radio
communications equipment, and although it will work with some earphone and
headphone sockets, there may be occasions where the signal output from these
types of output sockets is not enough for the speaker electronics to process the
signal effectively. Try using the line level input socket using a 3.5mm stereo plug to
plug lead.
Sometimes there is a short delay before the noise cancellation is active:
• This is due to the time the DSP takes to start processing the signals. This gives you
the opportunity to check that the DSP is not taking out any detail from the signal.
Sometimes I can hear a processing sound in the speakers when no signal is
present:
• This is caused by the DSP processor and is normal. When a signal is applied you
should not be able to hear this in the speaker.
11. bhi Support
Every Desk Top “Noise Away” noise eliminating speaker comes with a 12 month
guarantee against defective materials and workmanship. If you do have a problem then
please refer to the troubleshooting guide (section 11). If you have not resolved your
problem then please contact us. Before you make your call please have the following
information to hand:
1. Your serial number (found on the back of the unit).
2. Details of when and where you purchased the unit.
See our website for FAQs for answers to other common questions, otherwise most queries
can be resolved over the telephone. If not we will arrange with you to have your unit sent
back to us for analysis, repair or replacement (if within 12 months from date of purchase, if
outside the guarantee period an estimate of the cost of repair will be given). For contact
details please refer to the back cover of this manual. If you have any suggestions for
improvements please complete and return the customer feedback form.