Operating Instructions MA 53
Geba_MA53_e_13a.doc
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settings in % of the maximum calibration for both channels.
Position yourself the customary distance from the microphone and speak test
words.
Use the left knob
to adjust the level until both VU-meters
and
show all
yellow and one green light.
If one or more red lights are on, reduce the level using the knob
.
Store the calibration by pressing the STIM bar
or
↔.
5.3 Connection and calibration of the monitor phone
5.3.1 Connection of the monitor phone
Connect the monitor phone plug E to the
MONITOR connector
at the rear panel of
the MA 53 (see picture 34).To avoid
pinching the cables when closing the cover,
lay the cables in the slots provided. The
monitor phone allows you and the patient
to hear the speech test material
simultaneously. This helps in determining if
the test word was understood by the
patient. If the talk back option of the MA
53 is installed, the communication from the
patient to audiologist will be heard with the
monitor phone.
5.3.2 Adjustment of the monitor phone
To adjust the output level of the monitor
phone press the right SIGNAL key
longer
than 2 seconds.
In the lower right area of the display
the
text Monitor appears. Below that you see
the actual settings in % of the maximum
output level (see picture 35).
Perform a test signal with Tape, CD or the talk back microphone (if installed).
Use the right knob
↕ and adjust the output level that is comfortable for you.
Store the adjustment by pressing the STIM bar
or
↔.
Picture 34 MA 53 rear panel
with MONITOR phone output
Picture 35 MA 53 display with
adjustment of the monitor phone
Содержание MA 53
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