Controls, Connectors And.lndlcators; Display And Power; Vertical - Tektronix 2235A Instruction Manual

Operatlng lnstructlons
-
2235A lnstructlon
CONTROLS, CONNECTORS AND INDICATORS
DISPLAY AND POWER
1X- Indicates the deflection factor selected
when using either a
1X
probe or a coaxial cable.
Refer to Figure 2-3 for location of items 1 through 8.
1 OX PROBE
-
Indicates the deflection factor
selected when using a
10X
probe.
a
Internal Gratlcule
-
Eliminates parallax viewing
error between trace and graticule lines. Rise-time
amplitude and measurement points are indicated at
the left edge of the graticule.
@POWER Switch-Turns instrument power on and
off. Press in for ON; press again for OFF.
@
Power Indicator -An LED that illuminates when the
instrument is operating.
@
FOCUS Control- Adjusts for optimum display
definition.
@SCALE ILLUM Control-Adjusts the light level of
the graticule illumination.
@
BEAM FIND Switch-When held in, compresses
the display to within the graticule area and provides
a visible viewing intensity to aid in locating off-
screen displays.
@
TRACE ROTATION Control
-
Screwdriver adjust-
ment used to align the crt trace with horizontal
graticule lines.
@
A and B INTENSITY Controls- Determines the
brightness of the A and B Sweep traces.
VERTICAL
Refer to Figure
2-4
for location of items 9 through
18.
@
CH 1 VOLTSIDN and CH 2 VOLTSIDIV
Switches-Used to select the vertical deflection
factor in a
1-2-5
sequence. To obtain a calibrated
deflection factor, the VOLTSIDIV Variable control
must be in the calibrated (CAL) detent (fully
Figure 2-3. Power and display controls and indicator.
clockwise).
Scam
by ARTEK MEDIA
..r>
INTENSITY
TRACE ROTATION
BEAM FINO
SCALE
ILLUM
FOCUS
.
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7683-16
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