TM 11-6625-2735-14-1
A AND B TIME/DIV A TIME/DIV switch (clear
AND DELAY TIME
plastic outer flange) selects the
basic delay time to be multiplied
by the DELAY TIME POSITION
dial setting) for delayed-sweep
operation.
The B TIME/DIV
switch (inner dark knob) selects
the sweep rate for A only dis-
plays or for the B portion of a
delayed sweep display. VAR
control must be in the
calibrated detent for calibrated
sweep rates. Disables sweep for
X-Y operation.
VAR
UNCAL
Provides continuously variable
(uncalibrated) sweep rates
between the calibrated settings
of the TIME/DIV switch. Varies
the A Time Base sweep rate in
the nondelayed mode of
horizontal operation and the B
Time Base sweep rate in the
delayed sweep mode. Extends
the slowest sweep rate to at
least 1.25 seconds/division.
Sweep rate is calibrated when
the control is rotated fully
clockwise to the calibrated de-
tent.
Light that indicates when the
Horizontal POSITION
VAR TIME/DIV control is out of
the calibrated detent and the
horizontal sweep rate is un-
calibrated.
X10 MAG Indicator
Light that indicates when
X10 MAG is turned on.
Horizontal FINE
the
READY
Light that indicates that A
Sweep has been prepared to
present a single sweep upon
receipt of an adequate trigger
signal.
HORIZ DISPLAY
Selects the horizontal mode of
operation.
A: Horizontal deflection
provided by A TIME/DIV switch.
X10 MAG Pushbutton
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
rates are determined by the set-
ting
of the DELAY TIME
POSITION dial.
A INTEN: Displayed sweep
rate determined by the A
TIME/DIV switch. An inten-
sified portion appears on the
display during the B sweep
time. This switch position
provides a check of the duration
and position of the B sweep
(delayed sweep) with respect to
the delaying sweep (A).
B DLYD: Sweep rate deter-
mined 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 dial.
Positions the display horizon-
tally.
Provides more precise horizon-
tal position adjustments.
Increases the displayed sweep
rate by a factor of 10.
Calibrator and Power
CALIBRATOR A combination current loop/s-
quarewave
voltage
output
device. Provides a 30 mA
squarewave current, 300 mV
squarewave voltage signal with
a repetition rate of ap-
proximately 1 kHz.
POWER
Turns instrument power on and
off.
2-7
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