Tektronix 455 User Manual

Adjustment—455/A2/B2
C4. B START LEVEL
a. Set: B TIME/DIV 1 ms
X10 MAG in (on)
DELAY TIME POS Counterclockwise
b. Position start of A sweep to graticule centerline.
c. Set HORIZ DISPLAY switch to B DLY'D.
d. ADJUST—B Start R2682 (see Fig. 6-5) so that B
sweep starts at graticule centerline. While changing
HORIZ DISPLAY switch from A to B DLY'D, adjust
R2682 so that A and B sweeps start at same point.
C5. .5 /ts TIMING
a. Set:
HORIZ DISPLAY
A
A and B TIME/DIV
.5 jus
X10 MAG
out (off)
b. Set time-mark generator for 0.5 /is markers.
c. ADJUST—C2784 (see Fig. 6-5) for 1 time mark/
division.
d. Set: HORIZ DISPLAY B DLY'D
DELAY TIME POS 1.00 or less
e. ADJUST—C2684 (see Fig. 6-5) for 1 time mark/
division.
f. Set: B TIME/DIV ,05/is(pull
to unlock
knobs)
DELAY TIME POS 1.50
g. Position time mark to graticule centerline.
h. Set DELAY TIME POS control to 8.50.
i. ADJUST—C2784 (see Fig. 6-5) so that time mark
coincides with graticule centerline.
j. PARTIAL ADJUSTMENT INTERACTION—When
making partial adjustments, also adjust 5 ns timing.
C6. 5 ns TIMING
a. Set:
HORIZ DISPLAY
A
A TIME/DIV .05 /is
A SOURCE
EXT
b. Set time-mark generator for 10 ns markers. Connect
a 50 £2 cable and 50 £2 termination from time-mark
generator trigger output to B2 external trigger input.
Adjust vertical amplitude for about 4 divisions.
6-12
REV C AUG 1980

Tektronix 455 Specifications

General

Brand	Tektronix
Model	455
Category	Test Equipment
Language	English