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Section
3-2230
Operators
CONTROLS, CONNECTORS,
AND INDICATORS
The following descriptions are intended to familiarize
the operator with the location and function of the
instrument's controls, connectors, and indicators.
POWER AND DISPLAY
Refer to Figure
3-1
for location
of
items 1 through
9.
0
0
Internal
Graticule-Eliminates
parallax viewing error
between the trace and the graticule lines. Rise-time
amplitude and measurement points are indicated at
the left edge of the graticule.
POWER
Switch-
Turns instrument power on or off.
Press
in
for ON; press again for OFF.
0 Power
On
Indicator-Lights up while instrument
is
operating.
0 FOCUS Control-Adjusts for optimum display
definition. Once set, proper focusing
is
maintained
over a wide range of display intensity.
0
0
0
STORAGE/READOUT INTENSITY Control-Adjusts
the brightness
of
the STORE mode displayed
waveforms and the readout intensity
in
both STORE
and
NON
STORE mode. The fully counterclockwise
position of the control toggles the STORE/NON
STORE readout on and off.
BEAM FIND
Switch-Compresses
the vertical and
horizontal deflection to within the graticule area and
intensifies the display to
aid
in
locating traces that
are overscanned or deflected outside of the crt view-
ing area.
TRACE ROTATION Control-Permits alignment of
the trace with the horizontal graticule line. This con-
trol
is
a screwdriver adjustment that, once set,
should require little attention during normal
operation.
0
0
A INTENSITY
Control-Adjusts
the brightness
of
all
NON
STORE displayed waveforms. The control has
no effect on the STORE mode displays or the crt
readouts.
B INTENSITY
Control-Adjusts
the brightness of
the
NON
STORE B Delayed Sweep and the
Intensified zone on the A Sweep. The control has
no
effect on STORE mode displays or crt readouts.
VERTICAL
Refer to Figure 3-2 for location
of
items 10 through 19.
@ VOL TS/DIV
Switches-Select
the vertical channel
deflection factors from 2 mV to 5 V per division
in
a
1-2-5 sequence. The VOL TS/DIV switch setting for
both channels
is
displayed
in
the crt readout. The
VOL TS/DIV control settings for displayed waveforms
containing cursor symbols are shown
in
the crt
readout.
In
STORE mode, SAVE waveforms and waveforms
waiting to
be
updated between trigger events may
be
vertically expanded or compressed
by
up to a
factor of 10 times (or
as
many VOL TS/DIV switch
positions rerr;aining-whichever
is
less) by switching
the corresponding VOL TS/DIV control (waveforms
acquired at 2 mV/div cannot
be
expanded and
waveforms acquired at 5 V /div cannot
be
compressed). The VOL TS/DIV readout reflects the
vertical scale factor
of
the displayed waveform. If the
VOL TS/DIV switch is switched beyond the available
expansion
or
compression range, the readout
is
tilted to indicate that the VOL TS/DIV switch setting
and the VOL TS/DIV readout
no
longer agree.
1X
PROBE-Front-panel
marking that indicates
the deflection factor set by the VOL TS/DIV switch
when a
X1
probe or a coaxial cable
is
attached to
the channel input connector.
10X
PROBE-Front-panel
marking that indicates
the deflection factor set
by
the VOL TS/DIV switch
when a properly coded 1
OX
probe
is
attached to
the channel input connector.
3-1
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