Tektronix 2236 User Manual

Preparation For Use - 2236 Operators
BOTH - Selects both Channel 1 and Channel 2 in
put signals for display . The BOTH position must be
selected
for
either ADD , ALT
, or CHOP
operation
.
10 VOLTS / DIV Variable Controls - When rotated coun
terclockwise out of their
calibrated detent
positions
,
these
controls
provide continuously variable ,
uncalibrated deflection factors between the calibrated
settings of the VOLTS / DIV switches . In CH 1 V mode ,
the CH 1 VOLTS / DIV Variable control has no influ
ence on the Channel 1 volts measurements .
CH 2 ~ Selects
only the Channel
2 input signal
for
display
.
U
ADD - Displays the algebraic sum of the Channel 1
and
Channel
2
input
signals .
11
POSITION
Controls
—
Used to
vertically position the
display on the crt . When the SEC / DIV switch is set to
X - Y , the Channel 2 POSITION control moves the dis
play
vertically ( Y - axis
) , and the
Horizontal
POSITION
control moves
the display
horizontally
( X - axis ) .
ALT -
Alternately displays
Channel 1 and
Channel
2 input signals . The alternation occurs during re
trace at the end of each sweep . This mode is useful
for
viewing both
input
signals at
sweep speeds
from 0.05 us per division to 0.2 ms per division .
u
12 CH 1 OR X
& DMM and
CH 2 OR Y Input
Connec
tors — Provide
for
application of
external signals to the
instrument deflection system for display on the crt and
to the Multimeter ( CH 1 OR X & DMM input connector
only . In normal deflection mode ( SEC / DIV switch not
set to X - Y ) , signals from both connectors provide ver
tical
deflection on the crt .
In the X - Y
mode ( SEC /
DIV
switch set to X - Y ) , the signal connected to the CH 1
OR X input connector provides horizontal deflection
( X - axis ) , and the
signal
connected to the CH 2
OR Y
input connector provides vertical deflection ( y - axis ) .
CHOP— The display switches between the Chan
nel 1 and
Channel
2 input
signals during
the
sweep . The
switching rate
is approximately
500
KHZ . This mode is useful for viewing both Channel
1 and
Channel
2 input
signals
at
sweep
speeds
from 0.5 ms per division to 0.5 s per division .
U
TRIG VIEW --- Press in and hold this button to dis
play a sample of the signal present in the A Trigger
amplifier ( for all A SOURCE switch settings ) . All
other signal displays
are
removed
while the
TRIG
VIEW button is held in .
الا
13 Input Coupling ( AC / AC RMSV - GND - DC / DCV and AC
GND - DC ) Switches- Three - position switches that
select the method of coupling the input signals to the
instrument deflection system . When in CH 1 V CTM
mode the Channel 1 Input Coupling switch selects the
type of voltage measurement the Multimeter will per
form on the Channel 1 input signal ( AC RMSV or
DCV ) .
BW LIMIT — When pressed in , this button switch
limits the bandwidth of the vertical amplifier and the
A Trigger
system to
approximately
20 MHz
.
Button
must be pressed a second time to release it and
regain full 100 - MHz bandwidth operation . Provides
a method for reducing interference from high - fre
quency signals when viewing low - frequency
signals .
U
AC - Input signal is capacitively coupled to the ver
tical amplifier . The dc component of the input sig .
nal is blocked .
Low -
frequency limit ( -3 dB point
) is
approximately
10
Hz .
1
15 INVERT Switch – Inverts the Channel 2 display when
button is pressed in . Button must be pressed in a sec
ond time to release it and regain a noninverted
display
.
GND — The
input of the
vertical
amplifier
is
ground
ed to provide a zero ( ground ) reference - voltage dis
play ( does not ground the input signal ) . This switch
position allows
precharging the input
coupling
capacitor .
U
DC — All frequency components of the input signal
are coupled to the vertical deflection systems .
16 GND Connector — Provides direct connection to the
instrument
chassis
ground .
14
VERTICAL
MODE
Switches
—
Two three -
position
switches and two button switches are used to select
the mode of
operation
for
the vertical
amplifier
system .
U
17 SERIAL and Mod Slots- The SERIAL slot is imprint
ed with the instrument's serial number . The Mod slot
contains
the option
number that
is installed
in the
instrument
.
CH 1 -
Selects
only the
Channel
1 input
signal for
display .
2-4
U

Tektronix 2236 Specifications

General

Brand	Tektronix
Model	2236
Category	Test Equipment
Language	English