Kenwood CS-1022 User manual

CS-1022,CS-1021
,CS-1012
(DUAL TRACE OSCILLOSCOPE)
CS-1020,CS-101 0
(SINGLE TRACE OSCILLOSCOPE)
INSTRUCTION MANUAL

SAFETY
Symbol in This Manual
A This symbol indicates where applicable cautionary or
other information is to be found.
Power Source
This equipment operates from a power source that does
not apply more than 250 V rms between the supply con-
ductors or between either supply conductor and ground. A
protective ground connection by way of the grounding con-
ductor in the power cord is essential for safe operation.
Grounding the Product
This equipment is grounded through the grounding conduc-
tor of the power cord. To avoid electrical shock, plug the
power cord into a properly wired receptacle before connec-
ting to the equipment input or output terminals.
Use the Proper Power Cord
Use only the power cord and connector specified for your
product.
Use the Proper Fuse
To avoid fire hazard, use a fuse of the correct type.
Do not Operate in Explosive Atmospheres
To avoid explosion, do not operate this product in an ex-
plosive atmosphere.
Do not Remove Cover or Panel
To avoid personal injury, do not remove the cover or panel.
Refer servicing to qualified personnel.
Voltage Conversion
If the power source is not applied to your product, contact
your dealer. To avoid electrical shock, do not perform the
voltage conversion.
CONTENTS
SAFETY ssccccensavnerscvecsessanasenasacnas ciereiscveseeseeunts 2
FEATURES oie ci oecntenees biaiile seat yecnaccusersetesderite 3
SPECIFICATIONS ...........:.cceeeceeeeneeeeseeeneeseeeens 4
PREPARATION FOR USE.............:cssscesesseeeeneneees 6
CONTROLS AND INDICATORS ............0..e0seeeeeeee 8
FRONT PANEL............c.ccceeeeceeeseeeesenseeeeeeeseueneenes 8
REAR PANEL ............2cc0ccceeeeseeeeescencneceesseessseneees 14
OPERATION 3. ose sicsscsecceccsd venecsie eeaneniisecetecesvece 14
INITIAL STARTING PROCEDURE ...................::00::00 15
(1) NORMAL SWEEP DISPLAY OPERATION ................ 15
(2) MAGNIFIED SWEEP OPERATION................000csc00ee 18
(3) X-Y OPERATION ...........ccccceecceseeeseneeeeeeeseneeeeneaes 18
(4) VIDEO SIGNAL OBSERVATION ..............::eseceeeeeeee 18
APPLICATION oi. ceccecscactetssscavsnedcessecescndssacsevers 19
PROBE COMPENSATION ..............:eseeecseesseeceseeeeees 19
Note: This instruction manual is described for five models.
Refer to item applied to your product.
TRACE ROTATION COMPENSATION............:c.000000 19
DC VOLTAGE MEASUREMENTS. ...............:c0cceeseeees 19
MEASUREMENTS OF THE VOLTAGE
BETWEEN TWO POINTS ON A WAVEFORM ........... 20
ELIMINATION OF UNDESIRED SIGNAL
COMPONENTS ..........cccccceeeeeeseeeeneneeeeueeseeseeeeeees 20
TIME MEASUREMENTS.................ccseceeenenevenereeeeees 21
FREQUENCY MEASUREMENTS .............:0c:eeeseeeeeees 21
PULSE WIDTH MEASUREMENTS ...............c0ceceeerees 22
PULSE RISE TIME AND FALLTIME
MEASUREMENT G...............ccccceeeseeeneseneseuerene eres 22
TIME DIFFERENCE MEASUREMENTSG...................665 23
PHASE DIFFERENCE MEASUREMENTS. ................... 24
RELATIVE MEASUREMENTS. ................:::eeeeeeeeeeeees 24
APPLICATION OF X-Y OPERATION. ...........0.seseeeeeees 27
ACCESSORIES ieee cei jecsssccivesscdares shay seevedrarseetes 29

FEATURES
@ Vertical axis has high sensitivity and wide bandwidth @ For convenience in making rise time measurements, the
and
especially
covers
fully
specified
frequency
response
0%,
10%,
90%
and
100%
levels
are
marked
on
the
at 2mV/div for all models. graticule scale of the CRT.
CS-1022, 1021 ; ® Trace rotation is electrically adjustable from the front
Dual Trace panel.
1mV/div : DC to 10 MHz, —3 dB @ By SCALE ILLUM control, the waveform is easy observ-
2mV/div : DC to 20 MHz, —3 dB ed in the dark and the photograph of the waveform is
easy provided. (Except CS-1021)
CS-1012 ; Dual Trace ® Selectable AUTO FREE RUN function provides sweep
ImV/div : DC to 7 MHz, —3 dB without trigger input signal.
2mV/div : DC to 10 MHz, —3 dB @ The FRAME-LINE switch provides selection of sync
pulse for sweep triggering from small amplitude to large
CS-1020 ; Single Trace amplitude without adjusting when viewing composite
1imV/div : DC to 10 MHz, —3 dB video waveforms.
2mV/div : DC to 20 MHz, —3 dB @ For CS-1022, 1021 and 1012, vertical mode
automatically provides the trigger signal with TRIG
CS-1010 ; Single Trace SOURCE and V. MODE switches.
imV/div : DC to 7 MHz, —3 dB @ X-Y operation is easy provided by one-touche.
2mV/div : DC to 10 MHz, —3 dB CS-1022, 1021, 1012; CH1 Y axis,
CH2 X axis
® Vertical sensitivity range is selectable from 1mV/div to CS-1020, 1010; VERT INPUT Y axis
5V/div with rotary switch continuously. EXT TRIG INPUT X axis
@ Time base permits the high sweep speed. @® CS-1022 and 1012 are provided with CH1 OUTPUT
CS-1022, 1020; 20nsec/div (x 10 MAG) terminal to monitor input signal of CH1.
CS-1021, 1012, 1010; 50nsec/div (x 10 MAG) @ CS-1020 and 1010 are provided with VERT OUTPUT
@ Vertical sensitivity error and sweep rate error are +3% terminal to monitor input signal of VERT INPUT.
and accurate measurements are provided.
@ The 150mm rectangular CRT with internal graticule
provides high brightness and accurate measurements,
free of parallax error.
CS-1022, 1020; domed mesh type CRT with post-
deflection acceleration and high brightness
phosphors (acceleration voltage; 6 kV).
CS-1021, 1012, 1010; high brightness CRT (acce-
leration voltage; 2 kV).

SPECIFICATIONS
CS-1022 CS-1021 CS-1012 CS-1020 CS-1010
150GTM31A 150GTM31A
or 150UTM31
2kV
150GTM31A 150FTM31
150FTM31
2kV 6 kV 2kV
8x 10 div (1 div= 10 mm)
6 kV Acceleration Voltage
Display Area
Rectangular, with internal graticule
CH1 and CH2 =
1 mV/div to 5 V/div, +3%
Type
VERTICAL AXIS
Sensitivity
12 steps, 1 mV/div to 5 V/div in 1-2-5 sequence.
Vernier control for fully adjustable sensitivity between steps.
Attenuator
1 MQ +2%, approx. 35pF 1MQ +2%, approx. 32pF | 1 MQ +2%, approx. 35pF
Input Impedance
Frequency Response DC; DC to 20 MHz, DC; DC to 10 MHz, | DC; DC to 20 MHz, DC; DC to 10 MHz,
2 mVidiv to 5 V/div -3 dB -3 dB -3 dB -3 4B
AC; 5 Hz to 20 MHz, AC; 5 Hz to 10 MHz,| AC; 5 Hz to 20 MHz, AC; 5 Hz to 10 MHz,
-—3 dB —3 dB —3 dB —3 dB
1 mV/div DC; DC to 10 MHz, DC; DC to 7 MHz, DC; DC to 10 MHz, DC; DC to 7 MHz,
—3 dB -3 dB -3 dB -3 dB
AC; 5 Hz to 10 MHz, AC; 5 Hz to 7 MHz, | AC; 5 Hz to 10 MHz, | AC; 5 Hz to 7 MHz,
-—3 dB -3dB -3 dB -3 dB
35 nsec or less 17.5 nsec or less 35 nsec or less
Rise Time 17.5 nsec or less
(20 MHz) (10 MHz) (20 MHz) (10 MHz)
35 nsec or less 50 nsec or less 35 nsec or less 50 nsec or less
(10 MHz) (7 MHz) (10 MHz) (7 MHz)
Operating Modes CH1; single trace
CH2; single trace
ADD; CH1+CH2 added dispiay
ALT; two waveforms alternating
CHOP; two waveforms chopped
Chop Frequency Approx. 250 kHz
Normal or inverted, CH2 only inverted
500 Vp-p or 250 V (DC + AC peak)
More than 8 div, i than 5 div, More than 6 div, More than 8 div, eee than 6 div,
DC to 20 MHz DC to 20 MHz | DC to 10 MHz DC to 20 MHz DC to 10 MHz
(input thru CH2, x 10 MAG not included) (x 10 MAG not included)
With TRIG MODE switch, X-Y
Channel Polarity
Maximum Input voltage
Non-Distorted
Maximum Amplitude
HORIZONTAL AXIS
Operating Mode With TRIG MODE switch, X-Y
operation is selectable. operation is selectable.
CH1; Y axis VERT. INPUT; Y axis
CH2; X axis EXT TRIG INPUT; X axis
100 mV/div
1MQ +2%, 1 MQ 42%,
approx. 32pF approx. 35 pF
DC; DC to 1 MHz, DC; DC to 500 kHz, DC; DC to 1 MHz, {| DC; DC to 500 kHz,
-—3 dB -3 dB —3 dB —3 dB
AC; 5 Hz to 1 MHz, AC; 5 Hz to 500 kHz,
—3 dB -3 dB
Same as vertical axis (CH2)
Sensitivity
Same as vertical axis (CH2)
Input Impedance
Frequency Response
3° or less at 50 kHz 3° or less at 100 kHz | 3° or less at 50 kHz
X-Y Phase Difference 3° or less at 100 kHz
Maximum Input Voltage Same as vertical axis (CH2) 50 V (DC +AC peak)
SWEEP
Triggering sweep
Sweep free runs in absence of trigger

Sweep Time
0.2 us/div to 0.5 s/div,
+3% in 20 ranges, in
1-2-5 sequence.
Vernier control provides
fully adjustable sweep
time between steps.
Sweep Magnification
CS-1021 CS-1012
CS-1020
+3%
1-2-5
Vernier control provides
fully adjustable sweep
time between steps.
0.5 us/div to 0.5 s/div,
in 19 ranges, in
sequence.
0.2 us/div to 0.5 s/div,
+3% in 20 ranges, in
1-2-5 sequence.
Vemier control provides
fully adjustable sweep
time between steps.
0.5 us/div to 0.5 s/div,
+ 3% in 19 ranges, in
1-2-5 sequence.
Vernier control provides
fully adjustable sweep
time between steps.
Linearity
TRIGGERING
Internal Sync
CH1;
CH2;
+3% all ranges,
+5% on 0.2 ys/div range at x 10 magnification.
x 10 (ten times) +5%
Triggered by input signal selected
by vertical MODE setting.
Triggered by CH1 signal
Triggered by CH2 signal
Triggered by line voltage
INT; Triggered by vertical input signal
LINE; Triggered by line voltage
External Sync
External sync Input
Impedance
1 MQ, +2%
approx. 32pF
J
EXT;
TRIG INPUT jack
Triggered by signal applied to EXT
1 MOQ, +2%
approx. 35pF
1 MQ, +2%
approx. 30pF
1 MQ, +2%
approx. 30pF
Maximum External
Trigger Voltage
50 V (DC+ AC peak)
Coupling
Tigger Sensitivity
FREQ, RANGE INT EXT
20Hz to 20MHz 1div 0.1Vp-p
10Hz to 20MHz = idiv. -0.1Vpp
Sensitivity
FREQ, RANGE INT EXT
20Hz to 20MHz Idiv 0.2Vp-p
PROBE ADJ. VOLTAGE
INTENSITY MODULATION
AC, VIDEO FRAME, VIDEO LINE
FREQ, RANGE INT EXT
FRAME, LINE \div 0.1Vp-p
FREQ, RANGE
20Hz to 10MHz Idiv 0.1Vp-p | 20Hz to 20MHz
1O0Hz to 1OMHz ~~ Idiv_ 0.1Vp-p | 10Hz to 20MHz
FRAME, LINE 1div 0.1Vp-p
0.5 V, +6%, square wave, positive polarity, approx. 1 kHz
(NT EXT FREQ, RANGE INT = EXT
Idiv 0.1Vp-p | 20Hz to 10MHz 1div 0.1Vp-p
1div 0.1Vp-p |10H2z to 1OMHz div O.1Vpp
FRAME, LINE Idv 0.1Vp-p
Positive voltage increases brightness.
Negative voltage decreases brightness.
TTL compatible
Input Impedance
Approx. 10 kQ
Usable Frequency Range
DC to 1 MHz
Maximum Input Voitage
[pc to 2 MHz
50 V (DC +AC peak)
| DC to 2 MHz
OUTPUT
VERTICAL AXIS SIGNAL
CH1 SIGNAL OUTPUT
CH1 SIGNAL OUTPUT
| DC to 1 MHz
VERTICAL SIGNAL OUTPUT
Output Voltage
Approx. 50mV/div
(50 Q load)
Output Impedance
Approx. 50 2
Approx. 50 mV/div (50 © load)
Frequency Response
100 Hz to 20 Mtz,
—3 dB (50 2 load)
100 Hz to 10
Approx. 50 2
100 Hz to 20 MHz,
MHz,
—3 dB (50 © load) | —3 dB (50 © load)
100 Hz to 10 MHz,
—3 dB (50 Qload)
TRACE ROTATION
Electrical, adjustable from front panel
POWER REQUIREMENT
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Power Consumption
AC 100/120/220/240 V +10% 50/60 Hz
Approx. 43 W | Approx. 39 w | Approx. 41W Approx. 38W
Approx. 36W
DIMENSIONS
Width
( ) dimensions include protrusions from basic outline dimensions.
260 mm (260 mm)
160 mm (180 mm)
400 mm (460 mm)

CS-1022 CS-1021
CS-1012 CS-1020 CS-1010
WEIGHT Approx. 8.8 kg
Approx. 8.4 kg
Approx, 8.1 kg
ENVIRONMENT
Operating Temperature and
Humidity for Guaranteed
Specifications
O°C to 40°C, 85% maximum RH
Full Operating Temperature
and Humidity
0°C to 50°C, 90% maximum RH
ACCESSORIES
Probe
Instruction Manual
Replacement Fuse 0.8A
O.5A
@ Circuit and rating are subject to change without notice due to developments in technology.
PREPARATION FOR USE
SAFETY
Before connecting the instrument to a power source,
carefully read the following information, then verify that
the proper power cord is used and the proper line fuse is in-
stalled for power source. The specified voltage is shown at
the left side of the power cord on the rear panel. If the
power cord is not applied for specified voltage, there is
always a certain amount of danger from electric shock.
Line voltage
This instrument operates using ac-power input voltages
that 100/120/220/240 V at frequencies from 50 Hz to
60 Hz.
Power cord
The ground wire of the 3-wire ac power plug places the
chassis and housing of the oscilloscope at earth ground. Do
not attempt to defeat the ground wire connection or float
the oscilloscope; to do so may pose a great safety hazard.
The appropriate power cord is supplied by an option that is
specified when the instrument is ordered.
The optional power cords are shown as follows in Fig. 1.
Line fuse
The fuse holder is located on the rear panel and contains
the line fuse. Verify that the proper fuse is installed by
replacing the line fuse.
EQUIPMENT PROTECTION
1. Never allow a small spot of high brilliance to remain sta-
tionary on the screen for more than a few seconds. The
screen may become permanently burned. A spot will oc-
cur only when the scope is set up for X-Y operation and
no signal is applied. Either reduce the intensity so the
spot is barely visible, switch back to normal sweep
operation when no signal is applied, or set up the scope
for spot blanking.
2. Never cover the ventilating holes on the top of the
oscilloscope, as this will increase the operating
temperature inside the case.
3. Never apply more than the maximum rating to the
oscilloscope inputs.
CS-1022, 1021, 1012; CH1, CH2 INPUT jacks
500 Vp-p or 250 V (dc + ac peak)
EXT TRIG INPUT and Z AXIS INPUT
jacks
50 V (dce+ ac peak)
CS-1020, 1010; VERT INPUT jack
500 Vp-p or 250 V (dce+ ac peak)
EXT TRIG INPUT and Z AXIS INPUT
jacks
50 V (dc +ac peak)
Never apply external voltage to the oscillossope output
terminals.
4. Always connect a cable from the earth grouind (GND)
jack of the oscilloscope to the chassis of the equipment
under test. Without this caution, the entire current for
the equipment under test may be drawn through the
probe clip leads under certain circumstances, Such con-

ditions could also pose a safety hazard, which the
ground cable will prevent.
. Always use the probe ground clips for best results. Do
not use an external ground wire in lieu of the probe
ground clips, as undesired signals may be introduced.
. Operation adjacent to equipment which produces strong
ac magnetic fields should be avoided where possible.
This includes such devices as large power supplies,
transformers, electric motors, etc., that are often found
in an industrial environment. Strong magnetic shields
can exceed the practical CRT magnetic shielding limits
and result interference and distortion.
Power cord and plug type
Plug configuration
North American
120 volt/60 Hz
Rated 15 amp
(12 amp max; NEC)
7. Probe compensation adjustment matches the probe to
the input of the scope. For best results, compensation
of probe should be adjusted initially, then the same pro-
be always used with the input of scope. Probe compen-
sation should be readjusted whenever a probe from a
different scope is used. (See page 19)
8. Do not depress two or more push-switches of the ver-
tical MODE switch simultaneousely. (Except ADD)
Damage to instrument may result. (CS-1022,
CS-1021, CS-1012)
9. In X-Y operation, do not pull out the PULLx 10 MAG
switch. If pulled out it, noise may appeare on the
waveform.
0.8 A, 250 V
Fast blow
AGC/3AG
Universal Europe
220 volt/50 Hz
Rated 16 amp
U.K.
240 volt/50 Hz
Rated 13 amp
Australian
240 volt/50 Hz
Rated 10 amp
0.5 A, 250 V
Fast blow
5x20 mm
0.5 A, 250 V
Fast blow
5x20 mm
0.5 A, 250 V
Fast blow
5x20 mm
North American
240 volt/60 Hz
Rated 15 amp
(12 amp max; NEC)
0.5 A, 250 V
Fast blow
AGC/3AG
Switzerland
240 voit/50 Hz
Rated 10 amp
0.5 A, 250 V
Fast blow
AGC/3AG
5x20 mm
Fig. 1 Power Input Voltage Configuration

CONTROLS AND INDICATORS
CS-1022, 1021, 1012
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Fig. 2
FRONT PANEL
CS-1022, 1021, 1012
CS-1020, 1010
CS-1020, 1010
@® $ Position
Rotation adjusts vertical position of channel 1 trace.
In X-Y operation, rotation adjusts vertical position of
display.
@ # Position
Rotation adjusts vertical position of trace.
In X-Y operation, rotation adjusts vertical position of
display.
VOLTS/DIV
Vertical attenuator for channel 1; provides step adjust-
ment of vertical sensitivity. When VARIABLE control
3) is set to CAL, vertical sensitivity is calibrated in 12
steps from 5 V/div to 1 mV/div.
For X-Y operation, this control provides step adjust-
ment of vertical sensitivity.
VOLTS/DIV
Vertical attenuator. Coarse adjustment of vertical sen-
sitivity. Vertical sensitivity is calibrated in 12 steps
from 5 V/div to 1 mV/div when VARIABLE control
@) is set to CAL.
For X-Y operation this provides step adjustment of ver-
tical sensitivity.
VARIABLE Control
Rotation provides fine control of channel 1 vertical
sensitivity. In the fully clockwise (CAL) position, the
vertical attenuator is calibrated. For X-Y operation, this
control serves as the Y axis attenuation fine adjust-
ment.
VARIABLE Control
Vertical attenuator adjustment. Fine control of vertical
sensitivity. In the fully clockwise (CAL) position, the
vertical attenuator is calibrated. For X-Y operation, this
control serves as the Y axis attenuation fine adjust-
ment.

CS-1022, 1021, 1012 CS-1020, 1010
(@) AC-GND-DC @ AC-GND-DC
Three-position lever switch which operates as follows:
AC: Blocks dc component of channel 1 input
signal.
Opens signal path and grounds input to ver-
tical amplifier. This provides a zero-signal base
line, the position of which can be used as a
reference when performing dc measurements.
Direct input of ac and dc component of chan-
nel 1 input signal.
Three-position lever switch which operates as follows;
AC: Blocks dc component of input signal.
GND: Opens signal path and grounds input to vertical
amplifier. This provides a zero-signal base line,
the position of which can be used as a
reference when performing dc measurements.
Direct input of ac and dc component of input
signal.
INPUT Jack
Vertical input for channel 1 trace. Vertical input for X-Y
operation.
©) INPUT Jack
Vertical input and vertical input for X-Y operation.
VOLTS/DIV
Vertical attenuator for channel 2; provides step adjust-
ment of vertical sensitivity. When VARIABLE control
@) is set to CAL, vertical sensitivity is calibrated in 12
steps from 5 V/div to 1 mV/div.
In X-Y operation, this control provides step adjustment
of horizontal sensitivity.
VARIABLE Control
Rotation provides fine control of channel 2 vertical
sensitivity. In the fully clockwise (CAL) position, the
vertical attenuator is calibrated. In X-Y operation, this
control becomes the fine horizontal gain control.
AC-GND-DC
Three-position lever switch which operates as follows:
AC: Blocks dc component of channel 2 input
signal.
Opens signal path and grounds input to ver-
tical amplifier. This provides a zero-signal base
line, the position of which can be used as a
reference when performing dc measurements.
Direct input of ac and dc component of chan-
nel 2 input signal.
INPUT Jack
Vertical input for channel 2 trace in normal sweep
operation. External horizontal input in X-Y operation.
CH2 INV
Inthe NORM position (button released), the channel 2
signal is non-inverted. In the INV position (button
engaged), the channel 2 signal is inverted.
4 POSITION, X-Y <>
Rotation adjusts vertical position of channel 2 trace.
In X-Y operation adjusts horizontal position of display.

CS-1022, 1021, 1012
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CS-1022, 1021, 1012 CS-1020, 1010
@2 MODE
Five-position push switch; selects the basic operating
modes of the oscilloscope.
CH1: Only the input signal to channel 1 is
displayed as a single trace.
CH2: Only the input signal to channel 2 is
displayed as a single trace.
ADD: When both CH1 and CH2 buttons are
{(CH1 +CH2) engaged, the waveforms from channel 1
and channel 2 inputs are added and the
sum is displayed as a single trace. When
the CH2 INV ( button is engaged, the
waveform from channel 2 is subtracted
from the channel 1 waveform and the dif-
ference is displayed as a single trace.
ALT: Alternate sweep is selected regardless of
sweep time.
CHOP: Chop sweep is selected regardless of
sweep time at approximately 250 kHz.
(3 POWER, SCALE ILLUM
Fully counterclockwise rotation of this control (OFF
position) turns off oscilloscope. Clockwise rotation
turns on oscilloscope. Further clockwise rotation of
the control increases the illumination level of scale.
POWER, SCALE ILLUM (Except CS-1021)
Fully counterclockwise rotation of this control (OFF
position) turns off oscilloscope. Clockwise rotation
turns on oscilloscope. Further clockwise rotation of
the control increases the illumination level of the scale.
PILOT Lamp
Lamp Lights when oscilloscope is turned on.
PILOT Lamp
Lights when oscilloscope is turned on.
10

CS-1022, 1021, 1012
CS-1020, 1010
GND terminal/binding post.
Earth and chassis ground.
GND terminal/binding post.
Earth and chassis ground.
PROBE ADJ.
Provides approximately 1 kHz, 0.5 Volt peak-to-peak
square wave signal. This is useful for probe compen-
sation adjustment.
PROBE ADJ.
Provides approximately 1 kHz, 0.5 Volt peak-to-peak
square wave signal. This is useful for probe compensa-
tion adjustment.
TRACE ROTATION
Electrically rotates trace to horizontal position.
Strong magnetic fields may cause the trace to be
tilted.
The degree of tilt may vary as the scope is moved
from one location to another. In these cases, adjust
this control.
TRACE ROTATION
Electrically rotates trace to horizontal position.
Strong magnetic fields may cause the trace to be
tilted.
The degree of tilt may vary as the scope is moved from
one location to another. In these cases, adjust this
control.
FOCUS
Adjusts the trace for optimum focus.
FOCUS
Adjusts the trace for optimum focus.
INTENSITY
Clockwise rotation of this control increases the
brightness of the trace.
INTENSITY
Clockwise rotation of this control increases the
brightness of the trace.
ASTIG
Astigmatism adjustment provides optimum spot
roundness when used in conjunction with FOCUS and
INTENSITY controls. Very little readjustment of this
control is required after initial adjustment.
EXT TRIG INPUT Jack
Input terminal for external trigger signal.
When SOURCE switch is selected in EXT position, the
input signal at the EXT TRIG INPUT jack becomes the
trigger.
ASTIG
Astigmatism adjustment provides optimum spot
roundness when used in conjuction with FOCUS and
INTENSITY controls. Very little readjustment of this
control is required after initial adjustment.
EXT TRIG INPUT Jack
Input terminal for external trigger signal and external
horizontal input terminal for X-Y operation.
When SOURCE switch is selected in EXT position, the
input signal at the EXT TRIG INPUT jack becomes the
trigger.
LEVEL/PULL SLOPE (—)
LEVEL: Trigger level adjustment determines point
on waveform where sweep starts.
When COUPLING switch is selected in
VIDEO-FRAME or LINE, the trigger level ad-
justment has no effect.
+equals most positive point of triggering
and — equals most negative point of trigger-
ing. Push-pull switch selects positive or
negative slope.
Sweep is triggered on negative-going slope
of sync waveform with switch pulled out.
LEVEL/ PULL SLOPE (—)
LEVEL: Trigger level adjustment determines point
on waveform where sweep starts.
When COUPLING switch is selected in
VIDEO-FRAME or LINE, the trigger level ad-
justment has no effect.
+equals most positive point of triggering
and — equals most negative point of trigger-
ing. Push-pull switch selects positive or
negative slope. Sweep is triggered on
negative-going slope of sync waveform
with switch pulled out.
11

CS-1022, 1021, 1012
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Fig. 5
CS-1022, 1021, 1012 CS-1020, 1010
@3 COUPLING
Three-position lever switch; selects coupling for sync
trigger signal.
AC: Trigger is ac coupled. Blocks dc component
of input signal; most commonly used posi-
tion.
Vertical sync pulses of a composite video
signal are selected for triggering.
Horizontal sync pulses of a composite video
signal are selected for triggering. The LINE
position is also used for all non-video
waveforms.
@ COUPLING
Three-position lever switch; selects coupling for sync
trigger signal.
AC: Trigger is ac coupled. Blocks dc component
of input signal; most commonly used posi-
tion.
Vertical sync pulses of a composite video
signal are selected for triggering.
Horizontal sync pulses of a composite video
signal are selected for triggering. The LINE
position is also used for all non-video
waveforms.
SOURCE
Five-position lever switch; selects triggering source
for the sweep, with following positions;
V. MODE: The trigger source is determined by ver-
tical MODE selection.
CH1: Channel 1 signal is used as a trig-
ger source.
CH2: Channel 2 signal is used as a trig-
ger source.
The algebraic sum of channel 1
and channel 2 signal is the trigger
source. (If CH2 INV engaged, the
difference becomes the trigger
source.)
ADD:
SOURCE
Three-position lever switch; selects triggering source
for the sweep, with following positions;
INT: Waveform being observed is used as sync
trigger.
LINE: Sweep is triggered by
(50/60 Hz).
EXT: Sweep is triggered by signal applied to EXT
TRIG INPUT jack @ .
line voltage

CS-1022, 1021, 1012 CS-1020, 1010
CHOP: The display cannot be synchroniz-
ed with the input signal since the
chopping signal becomes the trig-
ger source.
CH1: Sweep is triggered by channel 1 signal
regardless of vertical MODE selection.
CH2: Sweep is triggered by channel 2 signal
regardless of vertical MODE selection.
LINE: Sweep is triggered by line voltage
(50/60 Hz).
EXT: Sweep is triggered by signal applied to EXT
TRIG INPUT jack @ .
@ TRIG MODE
Three-position lever switch; selects triggering mode.
AUTO: Triggered sweep = operation when _ trigger
signal 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. Vertical input signal produces
vertical deflection (Y axis). EXT TRIG input
produces horizontal deflection (X axis).
TRIG MODE
Three-position lever switch; selects triggering mode.
AUTO: Triggered sweep operation when trigger
signal 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.
XY: X-Y operation. Channel 1 input signal pro-
duces vertical deflection (Y axis). Channel
2 input signal produces horizontal deflec-
tion (X axis).
This operates regardless vertical MODE
selection.
VARIABLE Control
Fine sweep time adjustment. In the fully clockwise
(CAL) position, the sweep time is calibrated.
VARIABLE Control
Fine sweep time adjustment. In the fully clockwise
(CAL) position, the sweep time is calibrated.
For X-Y operation, this control serves as the X axis
gain adjustment.
Q@? SWEEP TIME/DIV
Horizontal coarse sweep time selector.
Selects calibrated sweep times of 0.2 us/div to
0.5 s/div in 20 steps (CS-1010... 0.5 us/div to
0.5 s/div in 19 steps) when sweep time VARIABLE
control @ is set to CAL position (fully clockwise).
SWEEP TIME/DIV
Horizontal coarse sweep time selector.
Selects calibrated sweep times of 0.2 ys/div to 0.5 s/
div in 20 steps (CS-1021, CS-1012... 0.5 ys/div to
0.5 s/div in 19 steps) when sweep time VARIABLE
contro! @8 is set to CAL position (fully clockwise).
@) <p» POSITION, PULL x 10 MAG
Rotation adjusts horizontal position of trace. Push-pull
switch selects x 10 magnification (PULL x 10 MAG)
when pulled out; normal when pushed in.
For X-Y operation, this control serves as the X axis
position control.
<> POSITION, PULL x 10 MAG
Rotation adjusts horizontal position of trace. Push-pull
switch selects x 10 magnification (PULL x 10 MAG)
when pulled out; normal when pushed in.
13

CAUTION
FOR CONTINUED PROTECTION AGAINST REPLACE =
GMLY WITH FUSE OF THE SPCCINED VOLTAGE Ane 2
DISCONNECT POWER SUPPLY BEFORE REPLACING FUSE.
Wie VOLTAGE RANGE (AC Fuse 20
Fig. 6
REAR PANEL
@ ZAXIS INPUT Z AXIS INPUT
External intensity modulation input; TTL compatible.
Positive voltage increases brightness, negative
voltage decreases brightness.
CH1 OUTPUT (Except CS-1021)
CH1 vertical output signal connector.
AC coupled output connector.
This connector is used to measure the frequency by
connecting the frequency counter. For stable opera-
tion, do not connect CH1 OUTPUT to channel 2 input
as cascaded operation.
External intensity modulation input; TTL compatible.
Positive voltage increases brightness, negative
voltage decreases brightness.
VERT OUTPUT
Vertical output signal connector.
AC coupled output connector.
This connector is used to measure the frequency by
connecting the frequency counter.
14
Fuse Holder
Contains the line fuse. Verify that the proper fuse is
installed when replacing the line fuse.
100 V,120 V
220 V, 240 V
Fuse Holder
Contains the line fuse. Verify that proper fuse is in-
stalled when replacing the line fuse.
100V, 120V
220V, 240V

OPERATION
INITIAL STARTING PROCEDURE
Until you familiarize yourself with the use of all controls,
the following procedure may be used to standarize the in-
itial setting of controls as a reference point and to obtain
5V/div
CAL
AC
CENTER
5V/div
CAL
AC
CENTER
(1) NORMAL SWEEP DISPLAY OPERATION
1. Turn the POWER contro! @ clockwise — the power
supply will be turned on and the pilot lamp will light.
Set these modes as follows;
MODE 42 : CH1
TRIG MODE @ : AUTO
. The trace will appear in the center of the CRT display
and can be adjusted by the CH1 + POSITION @ and
<> POSITION &) controls. Next, adjust the INTENSI-
TY @ and, if necessary, the FOCUS 48 for ease of
observation.
. Vertical Modes
With vertical MODE @ set to CH1, apply an input
signal to the CH1 INPUT ©) jack and adjust the
VOLTS/DIV @ control for a suitable size display of the
waveform. If the waveform does not appear in the
display, adjust the VOLTS/DIV and ¥ POSITION controls
to
bring
the
waveform
into
the
center
portion
of
the
CRT
display. Operation with a signal applied to the CH2 IN-
PUT @ jack and the vertical MODE set to CH2 is
similar to the above procedure.
In
the
ADD
mode,
the
algebraic
sum
of
CH1+CH2
is
displayed.
If
the
CH2
INV
49
switch
has
been
engag-
ed, the algebraic difference of the two waveforms,
CH1 — CH2 is displayed. If both channels are set to the
same VOLTS/DIV, the sum or difference can be read
directly in VOLTS/DIV from the CRT. In the ALT mode,
trace on the CRT in preparation for waveform observation.
When using the probe(s), refer to probe’s instructions and
““PROBE COMPENSATION” listed in APPLICATION of this
manual.
CENTER, PUSH
1ms/div
CAL
AUTO
CS-1022, 1012
V. MODE
Ac. C8-1020,1010
INT
CENTER, PUSH
CENTER CENTER
Fig. 7
(1) NORMAL SWEEP DISPLAY OPERATION
1. Turn the POWER control (3 clockwise—the power
supply will be turned on and the pilot lamp will light. Set
the TRIG MODE @) to AUTO position.
. The trace will appear in the center of the CRT display
and can be adjusted by the # POSITION @ ard <>
POSITION @ controls. Next, adjust the INTENSITY
and, if necessary, the FOCUS ‘48 for ease of
observation.
. Apply an input signal to INPUT @) jack and adjust the
VOLTS/DIV @ control for a suitable size display of the
waveform. If the waveform does not appear in the
display, adjust the VOLTS/DIV and * POSITION controls
to bring the waveform into the center portion of the CRT
display.
. If no trace is obtainable, refer to the following TRIGGER-
ING procedures.
The display on the screen will probably be unsynchroniz-
ed.
Refer to TRIGGERING procedures below adjusting syn-
chronization and sweep speed to obtain a stable (jsplay
showing the desired number of waveforms.
TRIGGERING
The input signal must be properly triggered for stable
waveform observation. TRIGGERING is possible the input
signal INTernally to create a trigger or with an EXT» rnally

“CS-1022, 1021, 1012
CS-1020, 1010
16
one sweep displayes the channel 1 signal and the next
sweep displays the channel 2 signal in an alternating se-
quence.
In the CHOP mode, the sweep is chopped at an approx-
imate 250 kHz rate and switched between CH1 and
CH2. Note that in the CHOP mode of operation with the
SOURCE switch set to V. MODE, the trigger source
becomes the chopping signal itself, making waveform
observation impossible. Use ALT mode instead in such
cases, or select a trigger SOURCE of CH1 or CH2.
If no trace is obtainable, refer to the following TRIGGER-
ING procedures.
. After setting the SOURCE switch, adjust the SLOPE
control.
The display on the screen will probably be unsynchroniz-
ed. Refer to TRIGGERING procedure below for adjusting
synchronization and sweep speed to obtain a stable
display showing the desired number of waveform.
TRIGGERING
The input signal must be properly triggered for stable
waveform observation. TRIGGERING is possible the input
signal INTernally to create a trigger or with an EXTernally
provided signal of timing relationship to the observed
signal, appliying such a signal to the EXT TRIG INPUT jack.
The SOURCE switch selects the input signal that is to be
used to trigger the sweep, with INT sync possibilities
(V.MODE, CH1, CH2, LINE) and EXT sync possibility.
* Internal Sync
When the SOURCE selection is in INT (V.MODE, CH1,
CH2, LINE), the input signal is connected to the internal
trigger circuit. In this position, a part of the input signal fed
to the INPUT © or @ jack is applied from the vertical
amplifier to the trigger circuit to cause the trigger signal
triggered with the input signal to drive the sweep.
When the V.MODE position is selected, the trigger source
is dependent upon the vertical MODE selection.
When the vertical MODE selection is in ALT, the ALT posi-
tion is very convenient for measuring the time duration of
the waveform. However, for phase or timing comparisons
between the channel 1 and channel 2 waveforms, both
traces must be triggered by the same sync signal.
When the SOURCE selection is in CH1, the input signal at
the channel 1 INPUT ©) jack becomes trigger regardless of
the position of vertical MODE. When the SOURCE selection
is in CH2, the input signal at the channel 2 INPUT @ jack
becomes trigger regardless of the position of vertical
MODE. When the SOURCE selection in LINE, the ac line
voltage powering the oscilloscope is used as sync trigger-
ing.
* Enternal Sync
When the SOURCE selection is in EXT, the input signal at
the EXT TRIG INPUT @) jack becomes the trigger. This
signal must have a time or frequency relationship to the
provided signal of timing relationship to the observed
signal, applying such a signal to the EXT TRIG INPUT jack.
The SOURCE switch selects the input signal that is to be
used to trigger the sweep, with INT sync possibility and
EXT sync possibility.
* Internal Sync
When the SOURCE selection is in INT, the input signal is
connected to the internal trigger circuit. In this position, a
part of the input signal fed to the INPUT © jack is applied
from the vertical amplifier to the trigger circuit to cause the
trigger signal triggered with the input signal to drive the
sweep.
When the SOURCE selection is in LINE, the ac line voltage
powering the oscilloscope is used as sync triggering.
* External Sync
When the SOURCE selection is in EXT, the input signal at
the EXT TRIG INPUT @) jack becomes the trigger. This
signal must have a time or frequency relationship to the
signal being observed to synchronize the display. External
sync is prefered for waveform observation in many applica-
tions. For example, Fig. 8 shows that the sweep circuit is
driven by the gate signal when the gate signal in the burst
signal is applied to the EXT TRIG INPUT jack. Fig. 8 also
shows the input/output signals, where the burst signal
generated from the gate signal is applied to the instrument
under test. Thus, accurate triggering can be achieved
without regard to the input signal fed to the INPUT © jack
so that no further triggering is required even when the input
signal is varied.
| | Trigger signal
: (Gate signal)
i]
|
|
: Input signal to
amplifier, etc.
Output signal from
amplifier, etc.

CS-1022, 1021, 1012
CS-1020, 1010
signal being observed to synchronize the display. External
sync is prefered for waveform observation in many applica-
tions. For example, Fig. 8 shows that the sweep circuit is
driven by the gate signal when the gate signal in the burst
signal is applied to the EXT TRIG INPUT jack. Fig. 8 also
shows the input/output signals, where the burst signal
generated from the signal is applied to the instrument under
test. Thus, accurate triggering can be achieved without
regard to the input signal fed to the INPUT ® or @ jack so
that no further triggering is required even when the input
signal is varied.
| | Trigger signal
{Gate signal)
|
(
!
|
|
y 1 CH1 (Input signal to
f amplifier, etc.)
t
t
|
1
t
|
!
1
!
!
|
|
t
'
|
|
'
t
CH2 (Output signal
from amplifier, etc.)
Fig. 8
* Triggering Level
Trigger point on waveform is adjusted by the LEVEL/PULL
SLOPE @. control. Fig. 9 shows the relationship between
the SLOPE and LEVEL of the trigger point. Triggering level
can be adjusted as necessary.
SLOPE ‘’—*' RANGE
SLOPE ‘' +’ RANGE
y
* Auto Trigger
When the TRIG MODE @ selection is in AUTO, the
sweep circuit becomes free-running as long as there is no
trigger signal, permitting a check of GND level. When a trig-
ger signal is present, the trigger point can be determined by
the LEVEL control for observation as in the normal trigger
signal. When the trigger level exceeds the limit, the trigger
circuit also becomes free-running where the waveform
starts running. When the LEVEL control is pushed in and/or,
when the trigger signal is absent or the triggering level ex-
ceeds the limit, there is no sweep.
* Triggering Level
Trigger point on waveform is adjusted by the LEVEL/PULL
SLOPE @ control. Fig. 9 shows the relationship between
the SLOPE and LEVEL of the trigger point. Triggering level
can be adjusted as necessary.
SLOPE ‘’—'’ RANGE
SLOPE ‘’ +’ RANGE
y
* Auto Trigger
When the TRIG MODE @ selection is in AUTO, the
sweep circuit becomes free-running as long as there is no
trigger signal, permitting a check of GND level. When a trig-
ger signal is present, the trigger point can be determined by
the LEVEL control for observation as in the normal trigger
signal. When the trigger level exceeds the limit, the trigger
circuit also becomes free-running where the waveform
starts running. When the LEVEL contro! is pushed in and/or,
when the trigger signal is absent or the triggering level ex-
ceeds the limit, there is no sweep.
17

*CS-1022, 1021, 1012
CS-1020,,1010
18
(2) MAGNIFIED SWEEP OPERATION
Since merely shortening the sweep time to magnify a por-
tion of an observed waveform can result in the desired por-
tion disappearing off the screen, such magnified display
should be performed using the MAGNIFIED SWEEP.
Using the <» POSITION control, adjust the desired portion
of waveform to the CRT. Pull out the PULL x 10 MAG con-
trol to magnify the display 10 times. For this type of
display the sweep time is the SWEEP TIME/DIV setting
divided by 10.
(3) X-Y OPERATION
For some measurements, an external horizontal deflection
signal is required. This is also referred to as an X-Y
measurement, where the Y input provides vertical deflec-
tion and X input provides horizontal deflection.
X-Y operation permits the oscilloscope to perform many
types of measurements not possible with conventional
sweep operation. The CRT display becomes an electronic
graph of two instantaneous voltages. The display may be a
direct camparison of two voltages such as during phase
measurement, frequency measurement with Lissajous
waveforms.
To use an external horizontal input, use the following pro-
cedure;
1. Set the TRIG MODE switch to X-Y the position.
2. Use the channel 1 probe for the vertical input and the
channel 2 probe for the horizontal input.
3. Adjust the amount of horizontal deflection with the CH2
VOLTS/DIV and VARIABLE controls.
4. The CH2 (vertical) POSITION @) control now serves
as the horizontal position control, and the # POSITION
control is disabled.
5. All sync controls are disconnected and have no effect.
(4) VIDEO SIGNAL OBSERVATION
The VIDEO FRAME/LINE switch permits selection of ver-
tical or horizontal sync pulse for sweep triggering when
viewing composite video waveforms. In the LINE position,
horizontal sync pulses are selected as triggers to permit
viewing of horizontal line of video. This is also the position
used for viewing all non-video waveforms. In the FRAME
position, vertical sync pulses are selected as triggers to
permit viewing of vertical fields and frames of video. When
observing the video waveforms, stable display is obtained
on the screen regardless the TRIG LEVEL @ control.
At most points of measurement, a composite video signal
is of the polarity, that is, the sync pulses are negative and
the video is positive. In this case, use ‘’—’’ SLOPE.
If the waveform is taken at a circuit point where the video
waveform is inverted, the sync pulses are positive and the
videois negative. In this case, use ‘’+'’ SLOPE.
(2) MAGNIFIED SWEEP OPERATION
Since merely shortening the sweep time to magnify a por-
tion of an observed waveform can result in the desired por-
tion disappearing off the screen, such magnified display
should be performed using the MAGNIFIED SWEEP.
Using the <» POSITION control, adjust the desired portion
of waveform to the CRT. Pull out the PULL x 10 MAG con-
trol to magnify the display 10 times. For this type of
display the sweep time is the SWEEP TIME/DIV setting
divided by 10.
(3) X-Y OPERATION
For
some
measurements,
an
external
horizontal
deflection
signal
is
required.
This
is
also
referred
to
as
an
X-Y
measurement,
where
Y
input
provides
vertical
deflection
and
the
X
input
provided
horizontal
deflection.
The
horizon-
tal
input
may
be
a
sinusoidal
wave,
such
as
used
for
phase
measurement,
or
an
external
sweep
voltage.
This
input
voltage
must
be
about
100
millivolts
per
division
of
deflec-
tion
(usually
1
volt
or
more
peak-to-peak
will
provide
satisfactory
results).
X
and
Y
positions
are
ajusted
using
the
<>»
POSITION
and
POSITION
@
controls
respectively.
To
use
an
external
horizontal
input,
use
the
following
procedure.
1. Set the TRIG MODE switch to the X-Y position.
2. Connect the external horizontal signal source through a
cable to the EXT TRIG INPUT jack.
3. Adjust the amount of horizontal deflection with the
VARIABLE
control,
which
adjusts
the
gain
to
the
horizontal amplifier.
4.
All
sync
contol
are
disconnected
and
have
no
effect.
(4) VIDEO SIGNAL OBSERVATION
The VIDEO FRAME/LINE switch permits selection of ver-
tical or horizontal sync pulse for sweep triggering when
viewing
composite
video
waveforms.
In
the
LINE
position,
horizontal
sync
pulses
are
selected
as
triggers
to
permit
viewing of horizontal line of video. This is also the position
used for viewing all non-video waveforms. In the FRAME
position, vertical sync pulses are selected as triggers to
permit viewing of vertical fields and frames of video. When
observing the video waveforms, stable display is obtained
on the screen regardless the TRIG LEVEL @ control.
At most points of measurement, a composite video signal
is
of
the
polarity,
that
is,
the
sync
pulses
are
negative
and
the video is positive. In this case, use ‘‘—'’ SLOPE.
If the waveform is taken at a circuit point where the video
waveform is inverted, the sync pulses are positive and the
video is negative. In this case, use ‘‘+’’ SLOPE.

APPLICATION
PROBE COMPENSATION
To obtain an accurate measurement result, the probe must
be adjusted correctly before measurement.
1. Connect the probe to the INPUT terminal and set the
control for a normal sweep display.
2. Connect the probe to the PROBE ADJ terminal on the
front panel, and adjust the SWEEP TIME/DIV control to
display a few cycles of the signal output from it.
3. Adjust the trimmer on the probe to obtain the following
correct compensation waveform.
Correct
compensation
Over
compensation
Insufficient
compensation
TRACE ROTATION COMPENSATION
Rotation from a horizontal trace position can be the cause
of measurement errors.
Adjust the controls for a single display. Set the AC-GND-DC
switch to GND and TRIG MODE to AUTO. Adjust the ,
POSITION control such that the trace is over the center
horizontal graticule line. If the trace appears to be rotated
from horizontal, align it with the center graticule line using
the TRACE ROTATION control located on the front panel.
DC VOLTAGE MEASUREMENTS
This procedure describes the measurement procedure for
DC waveforms.
Procedure:
1. Connect the signal to be measured to the INPUT
jack.Set the vertical MODE to the channel to be used
(unapplied to CS-1020 and 1010). Set the VOLTS/DIV
and SWEEP TIME/DIV switch to obtain a normal display
of the waveform to be measured. Set the VARIABLE
controlto the CAL position.
2. Set the TRIG MODE to AUTO and AC-GND-DC to the
GND position, which established the zero volt reference.
Using the + POSITION control, adjust the trace position
to the desired reference level position, making sure not
to disturb this setting once made.
3. Set the AC-GND-DC switch to the DC position to
observe the input waveform, including its DC compo-
nent. If an appropriate reference level or VOLTS/DIV
setting was not made, the waveform may not be visible
on the CRT screen at this point. If so, reset VOLTS/DIV
and/or the # POSITION control.
4. Use the <» POSITION control to bring the portion of
the waveform to be measured to the center vertical
graduation line of the CRT screen.
5. Measure the vertical distance from the reference level to
the point to be measured, (the reference level can be
rechecked by setting the AC-GND-DC switch again to
GND).
Multiply the distance measured above by the
VOLTS/DIV setting and the probe attenuation ratio as
well. Voltages above and below the reference level are
positive and negative values respectively.
Using the formula:
DC level=Vertical distance in divisions x (VOLTS/DIV set-
ting) x (probe attenuation ratio).
Measuring point adjusted to the center
vertical scale by <» POSITION
Zee
re eee Ore eae ee ee
en i Nee ees
Fas is fi aa
iia
Vertical distance
Ground potential adjusted by
4 POSITION (reference line)
Fig. 11
[EXAMPLE]
For the example, the point being measured is 3.8 divisions
from the reference level (ground potential).
lf the VOLTS/DIV was set to 0.2 V and a 10:1 ptobe was
used. (See Fig. 11)
Substituting the given values:
DC level= 3.8 (div) x 0.2(V) x 10=7.6 V
19

MEASUREMENT OF THE VOLTAGE BETWEEN TWO
POINTS ON A WAVEFORM
This technique can be used to measure peak-to-peak
voltages.
Procedure:
1. Apply the signal to be measured to the INPUT jack. Set
the vertical MODE to the channel to be used (unapplied
to CS-1020 and 1010). Set the AC-GND-DC to AC, ad-
justing VOLTS/DIV and SWEEP TIME/DIV for a normal
display. Set the VARIABLE to CAL.
2. Using the ¥ POSITION control, adjust the waveform
position such that one of the two points falls on a CRT
graduation line and that the other is visible on the
display screen.
3. Using the <» POSITION control, adjust the second
point to coincide with the center vertical graduation line.
4. Measure the vertical distance between the two points
and multiply this by the setting of the VOLTS/DIV con-
trol.
If a probe is used, further multiply this by the attenua-
tion ratio.
Using the formula:
Volts Peak-to-Peak
= Vertical distance (div) x (VOLTS/DIV setting) x (probe
attenuation ratio)
Adjust to the center
vertical scale with
<> POSITION. Points to be measured
(00)
soN
Wy
oe
28
as)
Bs
go
—_ &
Oo oO
oo
5:
>3
Mele
i
Adjust to the horizontal
scale with 4 POSITION.
Fig. 12
[EXAMPLE]
For the example, the two points are separated by 4.4 divi-
sions vertically. Set the VOLTS/DIV setting be 0.2 V/div
and the probe attenuation be 10:1. (See Fig. 12)
Substituting the given value:
Voltage between two points = 4.4 (div) x 0.2(V) x 10=8.8V
20
ELIMINATION OF UNDESIRED SIGNAL
COMPONENTS (Unapplied to CS-1020 and 1010)
The ADD feature can be conveniently used to cancel out
the effect of an undesired signal component which
superimposed on the signal you wish to observe.
Procedure:
1
. Apply the signal containing an undesired component to
the CH1 INPUT jack and the undesired signal itself alone
to the CH2 INPUT jack.
. Set the vertical MODE to CHOP and SOURCE to CH2.
Verify that CH2 represents the unwanted signal in
reverse polarity. If necessary reverse polarity by setting
CH2 to INV.
. Set the vertical MODE to ADD, SOURCE to V. MODE
and CH2 VOLTS/DIV and VARIABLE so that the
undesired signal component is cancelled as much as
possible. The remaining signal should be the signal you
wish to observe alone and free of the unwanted signal.
Signal containing undesired component
(Broken lines: undesired component envelope)
Undesired component signal