Tektronix 2247A

Performance Check Procedure
c. Set time-mark generator for 1 ms time markers.
d. Position first time marker horizontally to the first vertical graticule line
(left-most edge of the graticule).
e@. Press TIME button to display the TIME menu.
f. Press k- SEC -4 menu button to turn on time cursors.
g. Position the reference cursor to the second time marker and the delta
cursor to the tenth time marker.
h. CHECK—that the readout Is 7.940 ms to 8.060 ms.
Lb Press the TIME button to display the TIME menu.
J. Set l© 1/SEC > on.
k.
Reposition
the
reference
cursor
to
the
second
time
marker
and
the
delta
cursor
to
the
tenth
time
marker.
|. CHECK—that the readout Is 124 Hz to 126 Hz.
2. ke PHASE -4 Cursor Accuracy
a. Press the TIME button to display the TIME menu.
b.
Press
¢
PHASE
-
menu
selection
to
display
the
menu
cholces.
c. Set l© SET 360° on.
d.
Position
the
first
time
marker
to
first
graticule
line.
Then
position
the
Reference
cursor
to
the
leading
edge
of
the
second
time
marker
and
the
delta
cursor
to
the
leading
edge
of
the
tenth
time
marker.
e. Set le PHASE -4 on.
f.
Position
delta
cursor
to
the
leading
edge
of
the
sixth
time
marker.
g.
CHECK—that
the
readout
is
between
177.9
and
182.1
degrees.
h. Disconnect time-mark generator.
7-48
2247A
Operators
:
3
(ESS
E
°
rc