Tektronix 2247A

Operator Checks and Adjustments
2.
Connect
the
probe
tips
to
the
PROBE
ADJUST
connector
and
the
probe
ground
leads
to
scope
ground.
3. Set:
VERTICAL MODE CH 1 & CH2
Horizontal MODE A
4. Press AUTO SETUP button.
5.
Set
the
CH
1
VOLTS/DIV
setting
to
0.1
V
(10
mV
with
probe
discon-
nected)
and
vertically
center
the
PROBE
ADJUST
square-wave
signal.
6.
Check
the
square-wave
signal
for
overshoot
and
rolloff
(see
Figure
4-1).
If
necessary,
use
the
special
adjustment
tool
supplied
in
the
probe
accessory
package
to
adjust
the
low-frequency
compensation
for
a
square
front
corner
on
the
square
wave
displayed.
7.
Press
the
CH
2
VERTICAL
MODE
button
to
turn
CH
2
onin
the
display,
and
press
the
CH
1
Mode
button
to
remove
the
CH
1
trace
from
the
display.
8.
Set
the
CH
2
VOLTS/DIV
setting
to
0.1
V
(10
mV
with
probe
discon-
nected)
and
vertically
center
the
PROBE
ADJUST
square-wave
signal.
9.
Repeat
Steps
5
and
6
for
the
second
probe
on
the
CH
2
BNC
Input
con-
nector.
NOTE
Refer
to
the
instruction
manual
supplied
with
the
probe
for
more
detailed
information
about
the
probes
and
the
adjust-
ment
procedure.
2247A Operators
a
co
t
3