Tektronix 465B User Manual

Calibration Procedure— 465B Service
Adjustment
Procedure
e. ADJUST—A Trig Level (R7224) to movethe starting
point of the display
to
the center horizontal graticule
line.
f.
INTERACTION—
A Trig Level (R7224), A Trigger
Sensitivity (R7246), and A
Slope Center (R7242) will
interact. Repeat these adjustments
until no improvement
is noted.
5. Check/
Adjust
A Trigger DC
Levels (R1202,
R1126,
R1835)
a. Set
the
A TRIGGER
COUPLING switch
to DC.
NOTE
The A TRIGGER LEVEL
control must remain
a
I
0
throughout this
step.
b. CHECK—Start of the display is within
1 division of
the
center horizontal graticule line in both +
and
-slopes.
Return A TRIGGER SLOPE to +.
c.
ADJUST—Norm Trig
DC Balance (R1202)
to
move
the starting point of the display to the
center horizontal
graticule line.
d. INTERACTION—
A and B Trig Level (R7224
and
R7026) interact with Norm Trig
DC
Balance
(R1202).
Repeat
these adjustments until no improvement
is noted.
e. Set the A TRIGGER
SOURCE switch
to
CH
1.
f. CHECK—
Start of the
display is within 1 division
of
the center horizontal graticule
line in both + and
-slopes.
Return
A
TRIGGER
SLOPE to +.
g.
ADJUST—CH
1 Trig DC Balance (R1126)
to move
the starting point of the display
to the center horizontal
graticule
line.
h.
Set the A TRIGGER SOURCE Switch
to CH 2.
i.
CHECK—Start of the display is within
1
division
of
the center
horizontal
graticule line in both +
and
-slopes.
Return A SLOPE
to
+.
j.
ADJUST—CH 2 Trig
DC Balance (R1835) to move
the starting
point of the display
to the center horizontal
graticule line.
6. Check B Trigger DC Levels
a. Set:
HORIZ DISPLAY
B DLY'D
A TRIGGER
LEVEL Fully clockwise
B TRIGGER LEVEL
0
B TRIGGER
COUPLING DC
B TRIGGER
SOURCE NORM
NOTE
The B TRIGGER
LEVEL control must
remain at 0
during this step.
b.
CHECK—
Start
of the
display is within
1 division of
the center horizontal
graticule line for the following
modes:
B TRIGGER
SOURCE
NORM
CH 1
CH 2
7. Check B
Internal
10 MHz Triggering
a. Set:
TRIGGER
COUPLING
AC
(both)
CH 1
VOLTS/DIV
10
mV
CH 2 VOLTS/DI
V
0.1V
ATIME/DIV
0.2
ps
BTIME/DIV
0.05 /js
TRIGGER
SOURCE
(both) NORM
b. Adjust
the leveled
sine-wave generator
for a
3-
division
(30 mV) display
at 10 MHz.
c. Set the
CH 1 VOLTS/DIV
switch to
0.1 V (0.3-
division display).
d. Adjust the B TRIGGER
LEVEL
control
as needed for
a
stable
display.
e. CHECK—
For a stable
display,
with both +
and
-
slopes
for these modes:
B TRIGGER
SOURCE
COUPLING
NORM
AC, DC
CH
1
DC, AC
CH
2 AC,
DC
@
4-43

Tektronix 465B Specifications

General

Brand	Tektronix
Model	465B
Category	Test Equipment
Language	English