displayed in a right justified,
integer format on digits
1,
2 and
3.
L-
RESPONSE
LED
This LED is not used during the hardware diagnostic test and will
remain OFF.
STIMULUS
This
LED is
used to
indicate
when
the
stimulus is
being
presented.
The
LED is
OFF when the
stimulus is
not
being
presented and ON when it is being presented.
LOW
BATTERY SEGMENT
This LCD segment indicates a low battery voltage condition.
11
+
11
SEGMENT
This LCD segment indicates the position of the
+10
dB
pad.
When
the pad is "in"
the segment will be ON and when the pad is
"Out"
the segment will be OFF.
4.9.2 PUSHBUTTON DIAGNOSTIC TEST
(D1)
TEST DESCRIPTION
This
test provides a means of testing all controls,
except
for
the
Cal/Normal Switch,
for
proper
operation
when
manually
operated.
While in this test,
the operation of any control
will
display the
keycode
of the new position of the control on the HL
display.
This
keycode
will be displayed until another control is
operated.
TEST INITIALIZATION
When switched into the pushbutton diagnostic test, the instrument
will be initialized as follows:
Tone Type = Current selection
Frequency = Current selection
Stimulus M
UX
= Current position
Channel = OFF
Attenuator position = 255
+10
dB
Pad = Out
Transducer Routing = None
HL Display = Displays
"D1"
for 2 seconds and then blanks
Response LED = OFF
Stimulus On LED = OFF
Low Battery Segment = Current state
II
+
II
Segment = OFF
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