Tektronix 465B User Manual

e.
ADJUST—C4246 and
C4247
equally
for
1 time
marker/division over the
entire 10
divisions.
f. Set A and B
TIME/DIV
to 0.02
a/s.
NOTE
For SN B01
1250—
up,
perform
parts
g
through
j.
For
SN below B011250 skip to part k.
g.
Press BEAM FIND push button in.
h. CHECK— Display is centered horizontally.
i. ADJUST—
Horizontal
DC Centering
R4253
to
horizontally center the compressed display. (Recheck
Magnifier Registration if this adjustment is made.)
j.
Release
BEAM
FIND push button.
k.
ADJUST—C4246 for 2time marker/5
divisions over
the entire 10 divisions (adjust Horizontal POSITION
control as necessary).
l. Set A and B TIME/DIV switch
to 0.05 ps.
m. ADJUST—C4247 for 1 time marker/division over
the entire 10 divisions.
n.
Repeat part
f
and parts
k through m
for
best
timing
on
0.05
a/s
and
0.02 /js
ranges until no
further improve-
ment is obtained.
15. Check A and B Magnified Timing Accuracy
a. CHECK—Using
the A TIME/DIV switch
settings and
the
time-mark
generator settings given in
Table
4-16
check A
magnified sweep timing is
within 0.3 division
over
the center 10
divisions of the
magnified display. Note the
portions
of
the total magnified
sweep length to be
excluded from the
measurement.
b. Set the
HORIZ DISPLAY switch to B DLY'D.
c.
CHECK—Using the B
TIME/DIV switch and the
time-mark
generator settings given in Table
4-16
check B
magnified
sweeptiming, within 0.3division overthe
center
Calibration
Procedure—465B Service
Adjustment Procedure
10 divisions
of the magnified
display. Note the
portions ot
the total magnified
sweep length
to be excluded from the
measurement.
d.
Release
the X10
MAG push
button.
Table
4-16
A AND B
MAGNIFIED ACCURACY
Portions of
A
and B Total Mag-
Time/ Time- CRT nlfled Sweep
Div mark Display Length to
Switch Generator (Markers/ Exclude from
Setting Output Division) Measurement
0.02
a/s
2 ns
1 First and last 25
divisions
0.05 ps
5 ns 1
First and last 10
divisions
0.1 ps
10 ns 1 First
and last 5
divisions
0.2 ps
20 ns 1
First and last 2.5
divisions
0.5 ps 50
ns 1
1
ps 0.1
ps 1
2
ps 0.2 ps
1
5
ps 0.5
ps 1
10
ps
1
ps 1
20
ps
2ps 1
50
ps
5
ps
1
0.1 ms 10 ps
1
0.2 ms
20
ps 1
0.5 ms
50
ps 1
1
ms 0.1 ms 1
2 ms 0.2
ms 1
5 ms
0.5 ms 1
10 ms* 1 ms
1
20 ms* 2 ms 1
50 ms* 5 ms
1
A SWEEP
ONLY
0.1 s* 10 ms
1
0.2 S*
20 ms 1
0.5 s*
50 ms 1
‘Switch
TRIG MODE to NORM below 5
ms/division.
REV A
JUN 1979
4-57

Tektronix 465B Specifications

General

Brand	Tektronix
Model	465B
Category	Test Equipment
Language	English