Tektronix 453 User Manual

i-.._ - l- t.-._ -- !!I.-.._ -- i--- l-- ~ t-
-- ~ ~ .___. :--.~.~.- -
..
Fig. 5-25. Typiacl CRT display when checking high-frequency reject
operation at 50 kilohertz.
A SOURCE
A LEVEL
INT
Set for stable A display
DELAYED SWEEP (B)
HORIZ DISPLAY
i. Disconnect the low-frequency generator from the A
EXT TRIG INPUT connector and reconnect it to the B EXT
TRIG INPUT connector.
j. CHECK-Stable CRT display (see Fig. 5-248) can be
obtained
with the B COUPLING switch set to AC, HF REJ
and DC (B LEVEL control may be adjusted as necessary to
obtain stable display).
k. Set the B SOURCE switch to INT.
I. Set the low-frequency generator for a 0.2 division
display
at 60 hertz.
m. CHECK-Stable CRT display (see Fig. 5-24A) can be
obtained
with the B COUPLING switch set to AC, HF REJ
and DC (B LEVEL control may be adjusted as necessary to
obtain stable display).
35. Check A and B High-Frequency Reiect
Operation
a. Change the following control settings:
COUPLING (A and B)
A and B TIME/ DIV
A SWEEP MODE
HF REJ
20 µ,s
AUTO TRIG
b. Set the low-frequency constant-amplitude generator
for a 0.2-division display
at 50 kilohertz.
c. CHECK-Stable CRT display (see Fig. 5-25) can be
obtained
with the B LEVEL control.
d. Without changing the output amplitude, set the low-
frequency generator to one megahertz.
e. Set the MAG switch to X 10.
©
Performance Check/Calibration-Type 453/R453
Fig. 5-26. Typical CRT display when checking low-frequency reject
operation at 30 kilohertz.
f. CHECK-Stable display cannot be obtained at any
setting of the B
LEVEL control.
g. Change the following control settings:
A
SWEEP MODE
HORIZ DISPLAY
MAG
NORM TRIG
A
OFF
h. Set the low-frequency generator for a 0.2-division dis-
play
at 50 kilohertz.
i. CHECK-Stable CRT display (see Fig. 5-25) can be
obtained
with the A LEVEL control.
j. Without changing the output amplitude, set the con-
stant-amplitude generator
to one megahertz.
k. Set the MAG switch to X 10.
I. CHECK-Stable display cannot be obtained at any
setting of the A
LEVEL control.
36. Check A and B Low-Frequency Reiect
Operation
:a. Set the low-frequency generator for a 0.2-division dis-
play at 30 kilohertz.
b. Change the following control settings:
COUPLING (A and B)
A and B TIME/DIV
MAG
LF REJ
.1 ms
OFF
c. CHECK-Stable CRT display (see Fig. 5-26) can be
obtained
with the A LEVEL control.
d. Without changing the output amplitude., set the low-
frequency generator to 60 hertz.
e. Set the A and B
TIME/DIV switch to 2 ms.
f. CHECK-Stable CRT display cannot be obtained at
any setting of the A LEVEL control.
5-27

Tektronix 453 Specifications

General

Brand	Tektronix
Model	453
Category	Test Equipment
Language	English