Tektronix 2235 Operator's Manual

Operating
Proce d ures-2235 ΑΝ /USM-488 Operators
25 . Press in and
hold the TRIG V IEW button . Observe

11 . R otate the SEC/DIV Variable control out of the CAL
t he Channel 1 trigger signal
that is p resent in the Α Trigger

detent to its maximum counterclockwise position .
am p lifier .
12 . Observe that the sweep speed is approximately 2
.5
NOTE

times slower than in step 10, as indicate d b y more cycles
When using TRIG, V
IEW, trigger signals applied b y

displaye d on the screen .
any of
the Α
SOURCE switch positions will be dis-
played on
the crt scr een .
Trigger signals will remain

13 .
R eturn the SEC/DIV Variable control to the CAL
de-
stable when positioned
in
the
center graticule area b y

tent (fully clockwise) .
t he ΑTRIGGER LEVEL
control
.
26 . R elease the TRIG V IEW VERTICAL
MODE button .
1 . R otate the Α TRIGGER LEVEL control
between its
maximum clockwise an d counterclockwise p ositions
.
The
d isplay will remain triggered over the full range of the Α
U sing the H orizontal Section

TRIGGER LEVEL control .
1 . Note the d isplay at 0 .5 ms sweep speed for future
com
p
arison in step 3 .

2 . R eturn t he ΑTRIGGER LEVEL control to mi
d range .
2 . Set the Α SEC/DIV switch to 5 ms and
pull the
SEC/DIV Variable control knob out to obtain Χ
10 sweep
magnification .
3 . Observe that the display is similar to that obtained in
step
1 .
4 . R
otate the Horizontal POSITION control
throughout
its
range . Observe that the d isplay can be p ositione d to ei-
ther side of the center vertical
graticule line .
5 . Push
i n
t he SEC/DIV Variable control knob to return
to Χ 1 sweep
.
6
. Set the Α and Β SEC/DIV switches to 0 .1 ms .
7 . R
otate
the V
AR HOLDOFF control fully clockwise .
9 . R eturn the V AR HOLDOFF control to its NORM posi-
tion (fully
counterclockwise) .
10 .
R eturn
the Α and Β SEC/DIV switches to 0 .5 ms .
Note the
dis p lay for future comparison in step 12 .
U sing the Α T rigger Section
3 . Set the Α TRIGGER SLOPE to IN . Observe that the
display starts on the negative-going slope of the applied
signal .
4 . R eturn the Α T RIGGER SLOPE switch to OUT . Ob-
serve that the d isplay starts on the positive-going slope of
the applied signal .
5 . Set the TRIGGER SOURCE switch to CH 1, the VER-
TICAL MODE switch to CH 2, and the Channel 1 Input Cou-
pling
switch to GND . Observe that the d isplay free-runs .
6 . R eturn the Channel 1 Input Coupling switch to AC .
7 . Set the TRIGGER SOURCE switch to CH 2, the VER-
TICAL MODE
switch to CH 1, and the Channel 2 Input Cou-
p
ling switch to GND . Observe that the d isplay free-runs .
8 . R eturn the Channel 2 Input Coupling switch to AC
8 . Observe that the crt trace starts to flicker
as
the

and set the TRIGGER SOURCE switch to CH 1 .
h oldoff b etweensweeps is increased .
9 . Set the Α TRIGGER Mode switch to N ORM .
10 .
R
otate the Α TRIGGER LEVEL control b etween its
maximum clockwise
an d counterclockwise p ositions . Ob-
serve that the READY-TRIG'D
light illuminates only when
the d isplay is correctly triggered
.

Tektronix 2235 Specifications

General

Brand	Tektronix
Model	2235
Category	Test Equipment
Language	English