©
SCALE
ILLUM/PULL
TRACE
ROTA Control
SCALE
ILLUM:
Brightness adjustment of the
scale
of
the
CRT.
For photographing,
rotate
the
knob to adjust brightness to prevent
halation caused by too
bright
illumi-
nation.
TRACE
ROTA:
Tilt adjustment of the horizontal
bright
line in the
case
where geomagnetism
influences the
bright
line to
tilt.
© A
SWEEP
TIME/DIV Control
Range
select dial of 19 ranges
from
0.2 ^s/div to
0.5 s/div.
To
calibrate the set value,
rotate
the
SWEEP
VARIA-
BLE
controller © clockwise up to the CAL position.
© B
SWEEP
TIME/DIV Control
Range
select dial of 17 ranges
from
50 ms/div to
0.2 /xs/div. Set this dial to a value same as the A
SWEEP
TIME/DIV
© or higher than it.
© A
SWEEP
VARIABLE Control
Fine
sweep
time
adjustment. In the
fully
clockwise
(CAL)
position, the sweep
time
is calibrated.
© POSITION/PULL x 10 MAG Control
Horizontal
position
controller, which provides horizon-
tal shift of waveform. By
pulling
the knob, the sweep
time
is quickened ten times.
In the X-Y operation,
rotation
adjusts horizontal posi-
tion
of display.
NOTE:
In X-Y operation, keep this knob pressed (nor-
mal sweep mode).
©
LEVEL/PULL
SLOPE
(-) Control
LEVEL:
Trigger level adjustment determines
point
on
triggering
waveform where A sweep triggered.
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.
© HOLDOFF/PULL B TRIG'D Control
HOLD
OFF:
Adjusts
holdoff
(trigger
inhibit
period beyond sweep
duration). Clockwise
rotation
from
the NORM
position
increases
holdoff
time, up to 10 times at the MAX. po-
sition (fully clockwise).
PULL
B
TRIG'D:
Pulling out the knob activates B
TRIG'D
function. B
sweep
starts
from
the sweep start
point
at the
trigger
level
after delay
time
set
with
the A
SWEEP
TIME/DIV
and
ZIREF/DELAY
TIME
POSITION
©
(DELAY
TIME
PO-
SITION
only on the
CS-5135)
has
passed.
The
trigger
signal for A sweep is used as the
trigger
signal for B
sweep.
With
this knob depressed, B sweep starts af-
ter delay
time
set
with
the A
SWEEP
TIME/DIV and
4REF/DELAY
TIME
POSITION
has
passed.
©
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.
HFrej:
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 sync 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.
©
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, the channel-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.
CH1:
Channel 1 signal is used as a
trigger
source.
CH2:
Channel 2 signal is used as a
trigger
source.
LINE:
Sweep is
triggered
by line voltage (50/60 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.
EXT:
Sweep is
triggered
by signal applied to
EXT
TRIG
input
jack ©.
© 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.
NORM:
Normal
triggered
sweep operation. No trace
is
presented when a proper
trigger
signal is
not applied.
X-Y:
X-Y operation. Channel 1
input
signal pro-
duces
vertical deflection
(Y-axis).
Channel 2
input
signal produces horizontal deflection
(X-axis).
This
operates regardless vertical MODE
selection.
11
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