11
Symptom
Possible Fault
Action
Interference
(buzzing/
whistling/hissing)
is heard through
the hearing loop.
1) Incorrect power supply is
being used.
2) Unscreened or poorly earthed
third party equipment is being
used in close proximity.
1) Ensure that the supplied
grounded power supply is being
used.
2) Switch off any third party
equipment to identify the source
of interference.
No sound when
using headphones.
1) The optical input isn’t being
used.
2) Driver has a fault.
1) This function is only available
when using the optical input.
2) Contact your local dealer.
If you are still experiencing problems, please contact your local dealer.
