J
l
J
l
J
l
J
l
51.
POWER-Turns
instrument
power
on
and off.
52.
HORIZ
DISPLAY-Determines
the
mode
of
opera-
tion
for
the horizontal deflection system.
A: Horizontal deflection provided
by
A Sweep at a
sweep rate determined
by
the setting
of
the A
TIME/DIV
switch. B sweep is inoperative.
MIX:
The
first part
of
the horizontal sweep is displayed
at a rate set
by
the A
TIME/DIV
switch
and the latter part
of
the sweep at a rate set
by
the B
TIME/DIV
switch. Relative
amounts
of
the display allocated
to
each
of
the
two
sweep
rates are determined
by
the setting
of
the DELAY-TIME
POSITION
control.
A INTEN: The sweep rate is determined by the A
TIME/DIV
switch. An intensified
portion
appears
on
the
display
during
the
B Sweep time,
which
is
about
10 times
the B
TIME/DIV
switch setting.
This
switch
position
provides a check
of
the
duration
and position
of
the B
Sweep (delayed sweep) with respect
to
the A Sweep
(delaying sweep).
B DL YD: The sweep rate is determined by the B
TIME/DIV
switch
with the delay time determined
by
the
setting
of
the DELAY
TIME
(A
TIME/DIV)
switch and the
DELAY-TIME
POSITION control.
REAR PANEL
53. A
+GATE-Provides
a positive-going rectangular
pulse coincident with the A Sweep time, which can be
used to trigger the signal source (with TRIG MODE switch
set to AUTO).
54. B
+GATE-Provides
a positive-going rectangular
pulse coincident with the B Sweep time,
which
can
be
used to trigger the signal source after a selected delay
time, providing that A Sweep is triggered internally.
55.
CH
1 VERT SIGNAL
OUT-Provides
a sample
of
the signal applied to the CH 1
input
connector.
56. EXT
Z-AXIS-Permits
intensity modulation
of
the
crt
display. Does not affect display waveshape. Signals
with fast rise and fall provide the most
abrupt
intensity
change. Signals must be time-related
to
the
display
for
a
stable display. Useful
for
adding time markers in
un-
calibrated modes
of
operation.
57.
CALIBRATOR-A
combination
current
loop/
square-wave voltage
output
that permits the operator
to
compensate voltage probes and check vertical gain,
current probes and oscilloscope operation.
It
is
not
intended to verify time-base calibration.
REV FEB 1982
466/464 DM44 Operators
15
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