EasyManua.ls Logo

Tektronix 47E5A

Tektronix 47E5A
83 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
I
I
I
I
I
I
I
I
I
OPERATOR'S
ADJUSTMENTS
AND
CHECKS
To
verify
measurement
accuracy
,
perform
the
follow-
ing
checks
and
adjustments
before
making
a
measure-
ment
. See the
Calibration
section
of
the Service
manual
for
calibration
information
.
Trace Rotation Adjustment
Normally
not
required
.
Obtain
a
Normal
Sweep
Display
using
only
steps 1
through
3. Set the
CH
1
input
Coupling
switch
to
GND
to
display
a
free-running
trace
with
no
vertical
deflection
.
Adjust
the
TRACE
ROTATION
(screw-
driver
adjustment
located
below
the
crt
graticule)
to
align
the trace
with
the
center
horizontal
graticule
line
.
Probe Compensation
Miscompensation
is
one
of
the greatest
sources
of
operator
error.
Most
attenuator
probes
are
equipped
with
adjustments
to
ensure
optimum
measurement
accuracy
.
Probe
compensation
is
accomplished
as
follows
:
Obtain
a
Normal
Sweep
Display
presentation
of
the
calibrator
square-wave voltage. Set the
appropriate
VOL
TS/DIV
switch
to.1
V
position
and
the
Input
coupling
to
DC.
Check
the
waveform
presen
tation
for
overshoot
or
rolloff,
and
if
necessary, readjust
compensation
for
flat
tops
on the
waveforms
. See Fig. 11.
Refer
to
probe
manual
for
method
of
compensating
the
probe
being used.
-
t-
J.
.,,;
-
I-
-
1
00
f-
"-
f-
I-
I-
-
l O
I
1
r
I-
I-
'-
-
+-
.-
r-=
~
.
...
I-
-r-
1-
-
l-
"-
I-
.~
'-
...
"-
f-
-
-~
,-
f-
r
I-
Er
~
Ir
~
..
r.
f-
~'"'
I'-~
'-
f-
Fig. 11.
Probe
compensation
.
CORRECT
FLAT
OVER
COM·
PENSATED
(OVERSHOOT)
UNDER
COM·
PENSATED
(ROLLOFF)
465/DM·Q
·5
@
475A/DM44
Operators
29

Table of Contents

Related product manuals