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1 5 . F O C U S
Spot
focus
control
waveform according to brightness.
1 6 . S O U R C E
Selects triggering source for sweep.
I N T :
S w e e p is triggered by the waveform
being viewed: in D U A L and A D D
modes, sweep is triggered by CH1
signal.
E X T :
S w e e p
is triggered
applied to E X T T R I G jack (29).
17. S Y N C
Sync separator switch. It picks up sync signal
component in T V video signal and applies to
sync circuit for complete synchronization of
video signal being viewed.
N O R :
Used for viewing all waveforms ex-
cept television composite video.
T V :
The sync pulses of a television com-
posite video signal are used to trigger
the s w e e p ; the vertical sync pulses
( T V V - f r a m e )
selected for sweep times of 0 5 s/div.
to 0 1 ms/div., and horizontal sync
pulses (TVH-line) are automatically
selected for sweep times of 50jus/div.
to 0.5 /Lts/div.
18. S L O P E
Sunc polarity selector switch. At the " + "
position, sweep is effected with positive slope,
and at the " — " position, it is effected with
negative slope.
19. T R I G . L E V E L
Sync level adjustment determines points on
waveform slope where sweep starts;
equals most negative point of triggering and
( + ) equals most positive point of triggering.
P U L L A U T O :
Push-pull switch selects automatic triggering
w h e n
pulled
out
automatic triggering, a sweep is generated
without an input signal.
2 0 .
P O S I T I O N
Horizontal position adjuster to shift waveform
to any desired horizontal position. A right turn
of the adjuster will shift the waveform to right,
and vice versa.
P U L L X 5 M A G :
S w e e p magnifier switch. By pulling the knob
toward you, waveform is magnified to 5 times
in left and right directions.
6
to
obtain
optimum
by the signal
a r e
a u t o m a t i c a l l y
(—)
( P U L L
A U T O ) .
W h e n
Brightness is
slightly decreased.
2 1 . S W E E P T I M E / D I V
Horizontal
coarse s w e e p time
Selects calibrated sweep times of 0.5 /us/div.
to 0 . 5 s/div., in 19 steps when V A R I A B L E
control (22) is set to the C A L position (fully
clockwise).
In the X - Y position, this switch
disables the internal sweep generator and
permits the C H 2 input to provide horizontal
sweep.
2 2 . V A R I A B L E
Fine sweep time adjustment. In the extreme
clockwise ( C A L ) position, the sweep time is
calibrated.
2 3 . C A L 1 V p - p
Provides calibrated 1 kHz, 1 volt peak-to-peak
square w a v e calibration signal. This is used for
calibration of the vertical amplifier attenuators
and to check the frequency compensation ad-
justment of the probes used with the os-
cilloscope.
2 4 . H A N D L E
Use this handle to mount the oscilloscope in a
slant position.
2 5 . A C V O L T A G E S E L E C T O R
The C S - 1 3 5 2 may be operated from 1 0 0 V ,
120V, 2 2 0 V , 2 4 0 V , putting the A C V O L T A G E
S E L E C T O R in the place of another.
2 6 . F U S E H O L D E R
For 2 2 0 ~ 2 4 0 V operation a 0.5 ampere fuse
should be used.
For 1 0 0 ~
1 2 0 V operation a 1 ampere fuse
should be used.
2 7 . P O W E R C O N N E C T O R
For connection of the supplied A C power cord.
2 8 . I N T M O D
Intensity
(brightness) modulation
Intensity is modulated at voltages of + 5V.
2 9 . E X T T R I G
External sync input terminal. For external syn-
chronization, set the S O U R C E switch ( 1 6 ) to
E X T to apply external sync voltage.
3 0 . A S T I G
Astigmatism adjustment
brightness and spot roundness when used with
the Focus knob.
Very little readjustment of
this control is required after initial adjustment.
3 1 . E X T D C
selector.
terminal.
provides
optimum
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