Tektronix 465B User Manual

Calibration
Procedure—465B Service
Adjustment Procedure
j.
INTERACTION—Between the two positions of the
DELAY TIME POSITION
dial when
adjusting C6015.
Compromise the
adjustments as necessary to achieve
correct timing.
12.
Check/Adjust B Sweep High Speed
Timing
(C6042)
a. Set:
DELAY TIME POSITION
Fully counterclockwise
HORIZ DISPLAY B DLY'D
B
TRIGGER SOURCE NORM
A
TIME/DIV
1 fjs
.
B
TIME/DIV 0.5 /us
b. Adjust the A and B
TRIGGER LEVEL controls for a
stable display.
c.
CHECK—Display for 1 time
marker/division
±2%
(1
minor division at the
eleventh time marker).
d.
ADJUST—B High Speed
Timing
(C6042).
with alow
capacitance screwdriver, for exactly 1 time
marker/divi-
sion.
13.
Check A and B Time/Division Accuracy
a. CHECK—Using the B
TIME/DIV switch and the
time-mark generator settings given in Table 4-15, check B
sweep timing is within 0.2 division, over
the
first 10
divisions of the display.
Table 4-15 (cont)
A and B
Time/Div Time-mark CRT
Display
Switch Generator (Markers/
Setting Output Division)
50 /us 50
/us 1
0.1 ms
0.1 ms 1
0.2 ms
0.2 ms 1
0.5 ms 0.5 ms
1
1 ms
1 ms 1
2 ms 2 ms
1
5 ms
5 ms 1
10 ms' 10 ms
1
20 ms* 20 ms
1
50
ms* 50 ms
1
A SWEEP ONLY
0.1 s* 0.1 s
1
0.2
s*
0.1 s 1
0.5
s*
0.5 s
1
‘Switch A TRIG MODE to
NORM below 5 ms/dlvision.
b. Set
the HORIZ DISPLAY switch
to
A.
c.
CHECK—Using the A TIME/DIV switch and the
time-mark generator settings given in
Table 4-15
check A
sweep timing within 0.2 division, over the first 10 divisions
of
the
display.
Table
4-15
A AND B
TIMING ACCURACY
A and B
Time/Div
Switch
Setting
Time-mark
Generator
Output
CRT Display
(Markers/
Division)
0.02
/us 20
ns 1
0.05 /us 50
ns 1
0.1 (is
0.1 (is 1
0.2
u
s
0.2 (is 1
0.5 /us 0.5
(is 1
1
/US 1
(IS
1
2
/us
2 us
1
5
(is 5 us
1
10
(IS
10 us
1
20
(is 20 /us
1
14.
Adjust
High-Speed
Magnified
Timing
(C4246,
C4247)
a. Set:
HORIZ
DISPLAY
X10 MAG
Horizontal
POSITION
A and B TIME/DIV
A
XI
0
(button
in)
Midrange (as required)
0.05 /us
b.
Select
5 ns time
markers
from the
time-mark
generator.
c. Set CH 1
VOLTS/DIV
for at least a 4-division
display.
d.
CHECK—Display
for
1
time
marker/division ±3%
(±1
1/2 minor divisions at the eleventh time marker).
@4-56

Tektronix 465B Specifications

General

Brand	Tektronix
Model	465B
Category	Test Equipment
Language	English