FRONT PANEL CONTROLS AND INDICATORS
Figure 2-2: Front Panel
Fl
F2
F3
F4
F5
F6
F7
F8
F9
FlO
Power on indicator and label: indicator is illuminated when the GSI 38 is
receiving power.
Print Screen: pushbutton used to print the currently displayed page of memory.
Print All Memory: used to print all pages of data from memory.
Paper Advance:
causes paper to feed through printer; may be used to load
paper or to provide space between printouts.
FM: used during the Audiometry mode to select a frequency modulated test
tone when the present bar is depressed; causes the letters FM to appear on the
display when selected.
Steady: used during Audiometry mode to select a continuous test tone when
present bar is depressed; causes the steady symbol to appear on the display.
Pulsed: used during Audiometry mode to select a pulsed tone when the present
bar is depressed; causes the pulsed symbol to appear on the display.
Attenuator Knob
(dB
HL): used to increase or decrease the intensity of the
test tone presented in Audiometry mode; counterclockwise rotation causes the
intensity to be lowered; clockwise rotation causes the intensity to be increased.
+10
dB:
used to temporarily extend the intensity range by 10
dB;
causes a
large + sign to appear on the display indicating that the extended range has
been selected.
M+: save key; during Audiometry mode, causes the threshold information per
frequency to be saved on the display; during Program mode, causes option to
be selected; during Tymp/Reflex mode, causes frequency to be stored as a
default parameter.
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