User's Manual

62
TALKBACK volume too
low
Adjust the TALK BACK
volume by way of the
Maestro control
Connection
between PC and
device cannot be
established
USB port of the
computer not working
Connect the instrument to a
different USB port
USB cable damaged
Replace the USB cable
(standard USB cable, type
A/B)
Results of test
not credible
REM: Reference
microphones not
calibrated
Request calibration of
reference microphones
REM: Equalization not
valid
Run speaker equalization
procedure
REM: Probe
microphones not
calibrated
Calibrate probe microphones
REM: Auditory canal
obstructed by wax
Conduct an ear inspection
and proceed to remove wax
AUD: Transducers not
calibrated
Run transducer calibration
procedure
AUD: Incorrect type of
AC transducer selected
(headphone or earphone)
Change the selected type of
AC transducer in use by way
of the Maestro control
Speaker
equalization
procedure not
successful
Probes not suitably
positioned
Check that the probes are
placed correctly on the
patient, and that the patient is
positioned facing the
instrument, at a distance of
around one metre
Background noise level
too high
Move the instrument to a
quieter room or take steps to
reduce background noise as
much as possible