Tektronix 453 User Manual

Performance Check/Calibration-Type 453/R453
First
~z··
Ninth-division
vertical line
/_
First-'divisi;n
~
Tenth
ll
ver!ical line
marker
v
~
-
.
.
..
-
.
(A)
Fig. 5-30. (A) Typical CRT display showing correct normal gain;
(8) location of Normal Gain adjustment (8 sweep circuit board).
d. ADJUST-Mag Gain adjustment, R845, (see Fig. 5-
31 B), for one marker each division. The second and tenth
markers must coincide exactly with their respective ·grati-
cule lines (reposition the display slightly with the horizontal
FINE control if necessary).
e. Position the first eight-division portion of the total
magnified sweep onto the viewing area.
f. CHECK-One marker each division between the first-
and ninth-division vertical lines; marker at ninth-division
vertical line must be within 0.12 division
(within l.5%) of the
line when the marker
at the first-division vertical line is posi-
tioned exactly.
g. Repeat this check for each eight division portion of
the total magnified sweep length.
h. INTERACTION-Check steps 45, 53, 55, and 57.
45. Check/ Adiust Magnifier Register
0
a. Set the time-mark generator for five-millisecond mark-
ers.
b. Position the middle marker (three markers on total mag-
nified sweep) to the center vertical line (see
Fig. 5-32A).
5-32
. ~
Fig. 5-31. (A) Typical CRT display showing correct magnified gain;
(8) location of Mag Gain adjustment (8 Sweep circuit board).
c. Set the MAG switch to OFF.
d. CHECK-Middle marker should remain at the center
vertical line
(see Fig. 5-328), -+-0.2 division.
e. ADJUST-Mag Register adjustment, R855 (see Fig. 5-
32(), to position the middle marker to the center vertical line.
f. Set the MAG switch to X l 0.
g. Repeat parts b through e until no shift occurs when
MAG switch is set to OFF.
46. Check/ Adiust B Sweep Calibration 0
a. Change the following control settings:
DELAY-TIME MULTIPLIER
A TIME/DIV
B TIME/DIV
Fully Counterclockwise
2
ms
1 ms
B SWEEP MODE TRIGGERABLE AFTER
DELAY TIME
HORIZ DISPLAY DELAYED SWEEP (B)
MAG OFF
b. Set the time-mark generator for one-millisecond mark-
ers.
c. Set the B LEVEL control for a stable display.
©

Tektronix 453 Specifications

General

Brand	Tektronix
Model	453
Category	Test Equipment
Language	English