Tektronix 465B User Manual

Calibration
Procedure—465B
Service
Adjustment Procedure
f.
Repeat
step
25
parts
c,
d,
and e, for 10
mV
through
1 V
positions of CH 2
VOLTS/DI V
switch.
g.
Change
VERT MODE switches
to
display CH 1.
Move test
setup to CH 1
input.
h. Repeat step 25,
parts c,
d, and e, for 5 mV
through
1 V
positions of
CH
1
VOLTS DIV
switch.
i.
Disconnect
test setup.
26. Check
Cascaded
Gain and
Bandwidth
a
Set:
VOLTS/DI
V
(both) 5
mV
AC-GND-DC
(both)
AC
VERT MODE
CH 2
A
TIME/DIV
1 ms
b.
Connect
CH 1
VERT SIGNAL OUT (on
465B rear
panel) to
CH
2
input
connector via 50
O bnc cable and
50 O
termination.
c.
Connect
calibration generator
standard amplitude
output to CH 1
input connector via 50
Q bnc cable. Set
generator
output to 5 mV.
d.
CHECK—
Display
amplitude is
5
divisions or
more.
e
Remove test setup
from CH 1 input.
f.
Connect
leveled sine-wave
generator
reference
signal
output to CH
1 input via 50
O bnc cable,
10X
attenuator, and 50
Q
termination.
g.
Adjust generator
output for a
5-division display.
h. Set
generator for 50
MHz output frequency.
i.
CHECK—Display
amplitude is 3.5
divisions or more.
j.
Disconnect
test setup.
27. Check
Channel
Isolation
a. Set:
CH
2
VOLTS/DIV 0.2
V
VERT MODE
CH
2
CH 1
AC-GND-DC
GND
b.
Connect leveled
sine-wave
generator output to
CH
2
input via 50
0 bnc
cable,
and 50
0
termination.
c.
Set generator for 25
MHz and
adjust output for a
2-
division
display.
d. Set:
VOLTS/DIV (both) 20
mV
VERT
MODE
CH 1
A
TRIGGER SOURCE
CH
2
A TRIGGER LEVEL
As needed
for
a
stable
display
e
CHECK—Display
amplitude is
0.2
division or less.
f. Move
test setup from
CH
2
input to
CH
1
input
connector.
g.
Set:
CH 1
AC-GND-DC DC
CH
2
AC-GND-DC
GND
VERT MODE
CH 2
A
TRIGGER SOURCE
CH 1
A
TRIGGER LEVEL
As needed for a
stable
display
h.
CHECK—Display amplitude
is 0.2 division
or less.
i.
Disconnect
test setup.
28. Check/Adjust
Common-Mode Rejection
Ratio
(R1882)
a. Set:
VOLTS/DIV (both)
20 mV
AC-GND-DC (both) DC
A TRIGGER
SOURCE NORM
VERT MODE CH 1
CH
2
INVERT
Inverted (button in)
@
4-37

Tektronix 465B Specifications

General

Brand	Tektronix
Model	465B
Category	Test Equipment
Language	English