Tektronix 453 User Manual

Performance Check/Calibration-Type 453/R453
Intensified
-
Intensified
portion
portion
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Fig. 5-29. IA) Typical CRT display showing intensified portion correctly located at the second marker, (8) typical CRT display showing in-
tensified portion correctly located at the tenth marker, ( C) location of Sweep Start and A Sweep Cal adjustments I B Sweep board), <D) typical
CRT display showing correct final adjustment of Sweep Start and A Sweep Cal adjustments.
i. ADJUST-Sweep Start adjustment, R758 (see Fig.
5-29(), so intensified portion starts at second marker (pre-
liminary adjustment).
j. Set DELAY-TIME MULTIPLIER dial to 9.00.
k. CHECK-Intensified portion of display starts at tenth
marker (see
Fig. 5-298).
I. ADJUST-A Sweep Cal adjustment, R53l (see Fig.
5-29(}, so intensified portion starts at tenth marker (prelim-
inary adjustment).
m. Set the HORIZ DISPLAY switch to DELAYED SWEEP (8).
n. Set the DELAY-TIME MULTIPLIER dial to l.00.
o. CHECK-Displayed pulse starts
at the beginning of the
sweep (see
Fig. 5-29D).
p. ADJUST-Sweep Start adjustment, R758 (see Fig.
5-29(}, so displayed pulse starts at the beginning of the
sweep.
q. Set
DELAY-TIME MULTIPLIER dial to 9.00.
r. CHECK-Displayed pulse starts at the beginning of
the sweep (see
Fig. 5-29D).
s. ADJUST-A Sweep Cal adjustment, RS3l (see Fig.
5-29(}, so displayed pulse starts at the beginning of the
sweep.
©
t. Recheck parts n through s and readjust if necessary.
43. Check/ Adiust Normal Gain
:a. Set the HORIZ DISPLAY switch to A.
0
b. CHECK-CRT display for one marker each division,
+3%, between the first- and ninth-division vertical lines
(see
Fig. 5-30A).
NOTE
Unless otherwise noted, use the middle eight hori-
zontal divisions when checking or adjusting timing.
c. ADJUST-Normal Gain adjustment, R835 (see Fig.
5-308), for one marker each division. The second and tenth
markers
must coincide exactly with their respective graticule
lines (reposition the display slightly
with the horizontal
POSITION control
if necessary).
d. INTERACTION-Check steps 44 through 59.
44. Check/ Adiust Magnified Gain 0
a. Set the time-mark generator for 0.1 millisecond mark-
ers.
b. Set the MAG switch to X l 0.
c. CHECK-CRT display for one marker each division,
±4 °/o, between the first and ninth graticule lines (see Fig.
5-31A).
5-31

Tektronix 453 Specifications

General

Brand	Tektronix
Model	453
Category	Test Equipment
Language	English