Specifications

the
Xl0
MAG switch.
The
sweep
rate of the
delayed
sweep
(B
Sweep)
is not actually
increased.
The apparent
magni-
fication is the
result of
delaying
the B Sweep
an amount
of
time
determined
by both
the A
TIME/DlV switch
and the
DELAY
TIME
POSITION
control
before
the
display
is
presented
at
the sweep
rate selected
by the
B
TIME/DlV
switch.
The
following method
uses
the STARTS
AFTER
DELAY
position
of the B
(DLY'D)
TRIGGER SOURCE
switch
to allow
the delayed
portion
to
be
positioned
with
the
DELAY
TIME
POSITION control.
lf too
much
jitter
occurs
in the
delayed
display,
use
the
Triggered
Delay
Sweep
Magnification
procedure,
which
follows
the
Magni-
fied
Sweep
Starts
After
Delay
procedure.
Magnified Sweep
Starts
After
Delay
1.
Obtain
a Normal Sweep
Display
(refer
to
Basic
Oscilloscope
Displays
section of this
manual).
2.
Set
the appropriate
VOLTS/DlV
switch to
produce
a
display about
two divisions
in amplitude.
Set
the A TIME/DIV
switch
to a sweep
rate
which
displays
several
waveform
cycles.
Depress the
HORIZ
DISPLAY
ALT
push
button
and
set the B
(DLY'D)
TRIGGER SOURCE
switch
to
STARTS AFTER
DELAY.
lf
the
instrument is
equipped with a DM44,
verify
that
neither
the
TIME
nor 1/TIME
FUNCTION
switch
is
set.
Adjust channel
POSITION
control and TRACE SEP
to
display
.A
and B
Sweeps,
one above the other.
Position the start
o, ,n.
intensified
zone
with the
DELAY
TIME
POSITION
control
to the
part
of the
display
to be
magnified.
7.
Set
the B
TIME/DIV switch
to a setting
which
intensifies
the
full
portion
to
be magnified and
displays
that
portion
as the
B Sweep
(see
Figure24l.
The B
INTENSITY
control
may require adjustment
to display
the B Sweep
(magnified
portion).
3.
4.
5.
6.
@
56
4658/DM44
OPerators