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B SWEEP TIME/DIV Control
A SWEEP VARIABLE Control
Fine sweep time adjustment.
In the fully clockwise
(CAL) position, the sweep time is calibrated.
<4 > POSITION/PULL
x10 MAG Control
time is quickened ten times.
tion of display.
PULL SLOPE (—) Switch:
Two-position push-pull switch. Pulled out posi-
tion
selects
negative
going
(—)
slope
and
pushed in position selects positivegoing
(+)
slope as triggering point for A sweep.
HOLD OFF:
PULL B TRIG'D:
cy)
TRACE SEPARATION Control
Adjusts vertical separation between A sweep and B
sweep (control has effect only in the ALT of HORIZ.
MODE).
Clockwise
rotation
increases
separation;
B sweep
moves down with respect to A sweep up to 4 divisions.
COUPLING Switch
Selects coupling for sync trigger signal.
AC:
Trigger is AC coupled. Blocks DC component
of input signal; most commonly used position.
Sync signal is DC coupled through a low-pass
filter to eliminate high frequency components
for stable triggering of low frequency signals.
DC:
The sync signal is DC coupled for syne which
includes the effects of DC components.
TV FRAME:
Vertical sync pulses of a composite video sig-
nal are selected for triggering.
TV LINE: Horizontal sync pulses of a composite video
signal are selected for triggering.
HFrev:
SOURCE Switch
Sweep trigger source select switch.
VERT MODE: (Hereinafter referred to as V.MODE).
The sweep trigger source is selected with the
MODE
selector for the vertical operation (Y-
axis). When the vertical MODE selector is set
to CH1, the channel-1 signal is used as a trig-
ger source. When it is set to CH2, thechannel-2
signal is used as a trigger source. When set to
ALT, both the channel-1 and channel-2 signals
are used alternately. When set to CHOP or ADD,
the channel-1 signal is used as a trigger source.
Channel 1 signal is used as a trigger source.
Channel 2 signal is used as a trigger source.
Sweep is triggered by line voltage (5O/60 Hz).
NOTE: When the COUPLING
switch
is set to
other
than
AC
position,
the
syn-
chronization cannot be carried out. Be
sure to set the COUPLING switch to AC
position.
Sweep is triggered by signal applied to EXT TRIG
input jack @.
CH1:
CH2:
LINE:
EXT:
TRIGGERING MODE (Trig MODE) Control
Selects triggering mode.
AUTO:
Triggered sweep operation when trigger sig-
nal is present, automatically generates sweep
(free runs) in absence of trigger signal.
Normal triggered sweep operation. No trace
is presented when a proper trigger signal is
not applied.
X-Y operation. Channel
1 input #gnal pro-
duces vertical deflection (Y-axis). Channel 2
input signal produces horizontal cleflection
(X-axis).
This operates
regardless
vertical
MODE
selection.
NORM:
11
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