Tektronix 465B User Manual

Calibration Procedure
—465B Service
Adjustment Procedure
4.
Check
Sweep Linearity
a. CHECK—
Linearity over any
2
divisions of the
magnified sweep to be
within 0.1 division.
b. Release the
XI
0
MAG push button.
c.
Select 1 ms time
markers from the time-mark
generator.
d.
CHECK—Li nearity
over
any 2
divisions of the sweep
to be
within 0.1
division.
5.
Check/
Adjust
R4253
Magnifier Centering (SN
B011250—UP)
and R4275 Registration
a.
Push the X10 MAG push button in.
NOTE
Perform parts b
through e
for
SN
B011250—up.
Below
SN
B01 1250,
skip to
part
f.
b. Press
BEAM FIND push
button
in.
c.
CHECK
Display is centered horizontally.
d. ADJUST—
Horizontal
DC
Centering (R4253) to
horizontally center the
display.
e. Release BEAM
FIND
push
button.
f.
Select
5 ms
time markers from the time-mark
generator.
g.
Position the middle time marker to the center
vertical
graticule line.
h. Release the XI 0 MAG push
button.
i. CHECK—Middle time
marker
is
within
0.2
division of
the center vertical
graticule
line.
j.
ADJUST—Magnifier
Registration
(R4275) to
posi-
tion the middle time marker to the center vertical
graticule line.
k. Repeat parts c
through
j
(parts a
and f
through
j
for
SN below B011250) until no horizontal shift is observed
between
X10 MAG
in
and X10 MAG out.
6. Check/Adjust B Sweep
calibration
(R6052)
a. Set:
DELAY TIME POSITION Fully counterclockwise
HORIZ DISPLAY B DLY'D
ATIME/DIV
2 ms
B TIME/DIV 1ms
XI 0 MAG Off (button out)
b.
Select
1 ms
time markers from the time-mark
generator.
c.
CHECK— Display for 1 time
marker/division
±2%
(1
minor division at the
eleventh time marker).
d. ADJUST B Sweep
Cal (R6052) for exactly 1 time
marker/division.
7. Check A
Sweep Length
a. Set:
TIME/DIV (both)
1 ms
HORIZ DISPLAY
A
b.
Select
5 ms time
markers.
c.
Position the third time
marker horizontally to the
center
vertical
graticule line.
d.
CHECK—Display extends to
the right of the
center
vertical graticule line 1
division
(±0.5
division).
8.
Check Variable Time/Division
a.
Set the A
TIME/DIV switch
to 2
ms.
b.
Select 5 ms time markers
from the time-mark
generator.
c. CHECK—At least 1
time marker/division can be
obtained
by
adjusting the VAR
TIME/DIV control.
d. CHECK—
UNCAL LED comes on when the
VAR
TIME/DIV control is out of the detent
position.
e. Return the
VAR TIME/DIV control to the
detent
position.
4-54
REV A SEP
1979

Tektronix 465B Specifications

General

Brand	Tektronix
Model	465B
Category	Test Equipment
Language	English