Casa CS-1022 User manual

CS-1 022,CS-1 021 ,CS-1 01 2
(DUAL TRACE OSCILLOSCOPE)
CS-1 020,CS-1 01 0
(SINGLE TRACE OSCILLOSCOPE)
INSTRUCTION MANUAL

SAFETY
Symbol in This Manual
ft. 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 ........................................................ 2 TRACE ROTATION COMPENSATION
...................... 19
FEATURES ..................................................... 3
DC VOLTAGE MEASUREMENTS ............................ 19
MEASUREMENTS OF THE VOLTAGE
SPECIFICATIONS............................................ 4
BETWEEN TWO POINTS ON A WAVEFORM ........... 20
PREPARATION FOR USE ........... ............ ............ 6 ELIMINATION
OF UNDESIRED SIGNAL
CONTROLS AND INDICATORS .......................... 8 COMPONENTS
................................................. 20
FRONT PANEL.................................................... 8 TIME MEASUREMENTS
........................................ 21
REAR PANEL ...................................................... 14
FREQUENCY MEASUREMENTS ............................. 21
OPERATION ................................................... 14
PULSE WIDTH MEASUREMENTS .... ........................ 22
PULSE RISE TIME AND FALLTIME
INITIAL STARTING
PROCEDURE ............................ 15
MEASUREMENTS .............. .... ......... ................... 22
(1) NORMAL SWEEP DISPLAY OPERATION ................ 15
TIME DIFFERENCE MEASUREMENTS ...................... 23
(2) MAGNIFIED SWEEP OPERATION .......................... 18
PHASE DIFFERENCE MEASUREMENTS ................... 24
(3) X-V OPERATION ............................................... 18
RELATIVE MEASUREMENTS ................................. 24
(4) VIDEO SIGNAL OBSERVATION ............................ 18
APPLICATION OF X-V OPERATION ......................... 27
APPLICATION ................................................ 19
ACCESSORIES ............................................... 29
PROBE COMPENSATION ........................ . ............. 19
Note: This instruction manual is described for five models.
Refer
to item applied to your product.
2

FEATURES
• Vertical axis has high sensitivity and wide bandwidth
and especially covers fully specified frequency response
at 2mV/div for all models.
CS - 1022, 1021 ;
CS - 1012;
CS -1 020;
CS - 1010;
Dual Trace
1mV/div : DC to 10 MHz, - 3 dB
2mV/div : DC to 20 MHz, -3 dB
Dual Trace
1mV/div :
DC to 7 MHz, - 3 dB
2mV/div :
DC to 10 MHz, -3 dB
Single Trace
1mV/div :
DC to 10 MHz, - 3 dB
2mV/div : DC to 20 MHz, -3 dB
Single Trace
1mV/div :
DC to 7 MHz, -3 dB
2mV/div : DC to 10 MHz, - 3 dB
• Vertical sensitivity range is selectable from 1mV/div
to
5V/div with rotary switch continuously.
• Time base permits
the high sweep speed.
CS -1 022, 1 020; 20nsec/div (x 10 MAGI
CS - 1021, 1012, 1010; 50nsec/div (x10 MAGI
• Vertical sensitivity error and sweep rate error
are ±3%
and accurate measurements are provided.
• The 1
50 mm rectangular CRT with internal graticule
provides high brightness and accurate measurements,
free
of parallax error.
CS -1 022, 1 020; 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).
• For convenience in making rise time measurements, the
0%, 10%, 90% and 100% levels are marked on the
graticule scale
of the CRT.
• Trace rotation is electrically adjustable from the front
panel.
• By SCALE ILLUM control, the waveform is easy observ-
ed in the dark and the photograph of the waveform is
easy provided. (Except CS -1 021)
• Selectable AUTO FREE RUN function provides sweep
without trigger input signal.
• The FRAME-
LINE switch provides selection of sync
pulse
for sweep triggering from small amplitude to large
amplitude
without adjusting when viewing composite
video waveforms.
• For CS-1
022, 1021 and 1012 , vertical mode
automatically provides the trigger signal with
TRIG
SOURCE and V. MODE switches.
• X-Y operation is easy provided by
one -touche.
CS - 1022 , 1021, 1012; CH1 Y axis,
CH2 X axis
CS - 1020, 1010 ; VERT INPUT Y axis
EXT TRIG INPUT X axis
•
CS -1 02 2 and 1 012 are provided with CH 1 OUTPUT
terminal
to monitor input signal of CH 1.
e CS - 1020 and 1010 are provided with VERT OUTPUT
terminal
to monitor input signal of VERT INPUT.
3

r
SPEC IFICATIONS
CS-1022 CS-1021 CS-1012 CS-1020
CS - 1010
CRT 150FTM31 150GTM31A 150GTM31A 150FTM31 150GTM31A
Acceleration Voltage 6 kV 2 kV 2 kV 6 kV 2 kV
Display Area 8 x 1
0 div (
1 div = 1
0 mm)
Type Rectangular,
with internal graticule
VERTICAL AXIS CH1 and CH2 -
Sensitivity 1 mV/div
to 5 V/div, ±3%
Attenuator
12 steps, 1 mV/div to 5 V/div in 1-2-5 sequence.
Vernier control for fully adjustable sensitivity between steps.
Input Impedance 1
MO ± 2% , approx. 35pF 1 Mil ±2%, appro x. 32 pF 1 Mil ± 2%, approx. 35pF
Frequency Response DC ; DC to 20 MHz,
DC ; DC to 10 MHz,
DC ; DC to 20 MHz, DC ; DC to 10 MH z,
2 mV/div to 5 V/div - 3
dB - 3 dB
- 3 dB - 3 dB
AC; 5 Hz to 20 MHz, AC;
5H z to 10 MHz, AC; 5 Hz to 20 MHz, AC; 5H z to 10 MH z,
- 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 ; 5Hz to 10 MHz, AC; 5
Hz to 7 MHz, AC; 5H z to 10 MHz, AC; 5 Hz to 7 MH z,
- 3 dB
- 3 dB - 3 dB - 3 dB
Rise Time 17.5 nsec or less 35 nsec or less
17 .5 nsec or less 35 nsec or le ss
(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)
Crosstalk -
40 dB minimum -
Operating Modes CH1 ; single trace
CH2; single trace
ADD;
CH1 + CH2 added display -
ALT; two waveforms alternating
CHOP ; two waveforms chopped
Chop Frequency Approx.
250 kHz
-
Channel Polarity Normal or inverted, CH2 only inverted -
Maximum Input voltage
500 Vp-p or 250 V (DC+ AC peak)
Non-Distorted More than 8 div, More than 5 div, More than 6 div, More than 8 div, More than 6 div,
Maximum Amplitude
DC to 20 MHz DC to 20 MHz DC to 10 MHz DC to 20 MHz
DC to 10 MHz
HORIZONTAL AXIS
(Input thru CH2, x 10 MAG not included) (x 10 MAG not included)
Operating Mode With
TRIG MODE switch, X-Y 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
Sensiti
vity
Same as vertical axis (CH2)
100 mV/div
Input Impedance
Same as vertical axis (CH2) 1 MO ±2% , 1
MO ± 2%,
approx. 32pF approx.
35 pF
Frequency Respon se DC ; DC to 1 MHz,
DC ; DC to 500 kHz ,
DC ; DC to 1 MHz, DC; DC to 500kHz ,
- 3
dB - 3 dB
- 3 dB - 3 dB
AC; 5 Hz to 1 MHz,
AC ; 5 Hz to 500 kHz,
- 3
dB
- 3 dB
X-Y Phas e Difference 3° or
le ss at 100 kHz
3° or le ss at 50 kH z 3° or less at 100 kH z 3° or less at 50
kHz
Maximum Input Voltage
Same as vertical axis (CH2)
50 V (DC+ AC peak)
SWEEP
Type NORM Triggering sweep
AUTO Sweep free runs in absence
of trigger
4

CS-1022 CS..1021 I CS-1012 CS-1020 CS-1010 I
Sweep Time
0.2 ,.s/div to 0.5 sldiv, 0.5 ,.s/div to 0.5 s/div, 0.2 ,.s/div to 0.5 sldiv, 0.5 ,.s/div to 0.5 sldiv,
z3% in 20 ranges , in z
3% in 19 range s, in
z3% in 20 ranges , in z3% in 19 ranges, in
1-2-5 sequence . 1-2-5
sequence . 1-2-5
sequence. 1-2-5 sequence .
Vernier control provides
Vernier control provides Vernier control provides Vemier control provides
fully adjustable sweep fully adjustable sweep fully adjustable sweep fully adjustable sweep
time between steps. time between steps. time between step
s.
time between steps.
Sweep Magnification
x 10 (ten times) ± 5%
Uneari ty ±3% all ranges,
±
5% on 0.2 ,.s/div range at x 10 magnification .
TRIGGERING
Internal Sync
V. MODE; Triggered
by input signal selected I NT ; Triggered by vertical input signal
by vertical MODE setting . LINE; Triggered by line voltage
CH1 ; Triggered by CH1 signal
CH2 ; Triggered by CH2 signal
LINE; Triggered by line voltage
External Sync EXT; Triggered
by signal applied to EXT
TRIG INPUT jack
External sync Input
1 MO, ±2%
1 MO. ± 2% 1 MO. ±
2% 1 MO, ± 2%
Impedance approx . 32pF approx . 35pF
approx. 30pF approx . 30pF
Maximum External
50 V (DC + AC peak)
Trigger
Voltage
Coupling
AC, VIDEO FRAME, VIDEO LINE
Tigger Sensitivity
FREO . RANGE INT EX T FREO . RANG E
IN T EXT
FR EO, RANG E IN T
EX T
FR EO. RANG E IN T EXT
FR EO. RANG E INT EXT
AUTO
20Hz "' 20MHz
l di v O.lVp-p 20Hz
"' 20MHz
1dfv 0.2 Vp-p
20Hz"' 1 0MHz
1 div O. lVp-p
20Hz1D 20MHz
1 div 0.1V I>1>
20Hz "' 10MHz
1 dlv 0.1V 1>1>
NORM
1 OH.t to2 0MHz
1di v 0. 1Vp-p 1OH z to 2 0MH z ldiv 0.
2Vp-p 10Hz to 1 0M Hz
ld fv 0. 1Vp-p
1 OHz to 2 0M Hz 1 dlv 0.1 V1>1> 1 OHz to 1 OMHz tdiv 0. 1V.,..,
VIDEO FRAME , UNE 1 dlv o. tv.,.., FRAM E, UN E
1dlv 0. 2V1>1>
FRA ME,UNE ldiv 0.1
Vp-p
F RAM E,UNE t
div O.t V.,..,
FRAM E,UNE 1
dlv 0.1 V.,..,
PROBE ADJ. VOLTAGE
0.5 V, ± 6%, square wave , positive polarity , approx . 1 kHz
INTENSITY MODULATION
Sensitivity TTL compatible
Positive voltage increases brightness .
Negative voltage decreases brightness .
Input Impedance
Approx . 10 kO
Usable Frequency Range DC to 2 MHz DC to 1 MHz
DC to 2 MHz DC to 1 MHz
Maximum Input Voltage
50 V (DC+ AC peak)
VERTICAL AXIS SIGNAL CH1 SIGNAL OUTPUT
-
CH1 SIGNAL OUTPUT
VERTICAL SIGNAL OUTPUT
OUTPUT
Output Voltage Approx. 50mV/div - Approx . 50 mV/div (50 0 load)
(50 0 loadl
Output Impedance
Approx . 50 0 - Approx . 50 0
Frequency Response 100Hz to 20 MHz , - 100Hz to 10 MHz, 100 Hz to 20 MHz ,
100Hz to 10 MHz ,
- 3 dB (50 0 load) - 3 dB (50 0 load) - 3 dB (50 0 load) - 3 dB (50 0 load)
TRACE ROTATION Electrical, adjustable from front panel
POWER REQUIREMENT
AC 100/120/220/240 V ± 10%
50/60Hz
Power Consumption
Approx . 43 W
Approx . 39 W
Approx . 41W Approx . 38W Approx . 36W
I
DIMENSIONS ( I dimensions Include protrusions from basic outline dimensions .
Width 260 mm (260 mm)
Height
160 mm (180 mm)
Depth
400 mm (460 mm)
----- - --- -- --- --- --- ----- - --- --
5

CS-1022
CS-1021 I CS-1012
I
CS-1020
CS-1010
WEIGHT Approx. 8.8 kg
Approx. 8.4 kg Approx. 8.1 kg
ENVIRONMENT I
Operating Temperature and
0°C to 40°C, 85% maximum RH
Humidity for Guaranteed
Specifications
Full Operating Temperature
0°C to 50°C, 90% maximum RH
and Humidity
ACCESSORIES
Probe 2 I 1
Instruction Manual 1
Replacement
Fuse 0.8 A 2
0. 5A 2
• 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
60Hz.
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.
6
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, CH21NPUT jacks
500 Vp-p or 250 V (de+ ac peak)
EXT TRIG INPUT and Z AXIS INPUT
jacks
50 V (de+ ac peak)
CS - 1020, 1010; VERT INPUT jack
500 Vp-p or 250 V (dc+ac peak)
EXT
TRIG INPUT and Z AXIS INPUT
jacks
50 V (de+ ac peak)
Never apply external voltage
to the oscilloscope output
terminals.
4.
Always connect a cable from the earth ground (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.
5. Always use the probe ground clips for best results. Do
hot use an external ground wire in lieu of the probe
ground clips, as undesired signals may be introduced.
6. 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.
Plug configuration Power cord and plug type
~
North American
120 volt/60 Hz
Rated 15 amp
( 12 amp max; NECt
~
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
~
North American
240 volt/60 Hz
Rated 15 amp
. (
12 amp max; NECt
~
Switzerland
240 volt/50
Hz
Rated 10 amp
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-1 022,
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.
Factory instaled
Line cord plug fuse
instrument fuse
0.8 A, 250 V
Fast blow
None
AGC/3AG
0.5
A, 250 V
Fast blow
None
5x20 mm
0.5 A, 250 V 0.5 A
Fast blow
5x20 mm
Type C
0.5 A, 250 V
Fast blow
None
5x20 mm
0.5 A, 250 V
Fast blow None
AGC/3AG
0.5
A, 250 V
Fast blow
None
AGC/3AG
5x20 mm
Fig. 1 Power Input Voltage Configuration
7

CONTROLS AND INDICATORS
CS-1022, 1021, 1012
CS-1020, 1010
®®
Fig. 2 Fig. 3
FRONT PANEL
CS-1022, 1021, 1012
CS-1020, 1010
CD
• POSITION
CD
• POSITION
Rotation adjusts vertical position
of channel 1 trace. Rotation adjusts vertical position
of trace.
In X-Y operation, rotation adjusts vertical position of
In X-Y operation, rotation adjusts vertical position of
display. display.
® VOLTS/DIV ® VOLTS/DIV
Vertical attenuator
for channel 1; provides step adjust-Vertical attenuator. Coarse adjustment of vertical sen-
ment
of vertical sensitivity. When VARIABLE control sitivity. Vertical sensitivity is calibrated in 12 steps
® is set to CAL, vertical sensitivity is calibrated in 12 from 5 V/div to 1 mV/div when VARIABLE control
steps from 5 V/div
to 1 mV/div. ® is set
to CAL.
For X-Y operation, this control provides step adjust- For X-Y operation this provides step adjustment
of ver-
ment
of vertical sensitivity. tical sensitivity.
® VARIABLE Control @ VARIABLE Control
Rotation provides fine control
of channel 1 vertical Vertical attenuator adjustment.
Fine control of vertical
sensitivity. In the fully clockwise (CAL) position, the sensitivity.
In the fully clockwise (CAL) position, the
vertical attenuator
is calibrated. For X- Y operation, this vertical attenuator
is calibrated. For X-Y operation, this
control serves
as the Y axis attenuation fine adjust-control serves
as the Y axis attenuation fine adjust-
ment. ment.
8

CS-1022, 1021, 1012
@ AC-GND-DC
Three-position lever switch which operates as follows:
AC: Blocks
de component of channel 1 input
signal.
GND: 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 de measurements.
Direct input
of ac and de component of chan-
nel 1 input signal.
DC:
@ INPUT Jack
Vertical input for channel 1 trace. Vertical input for X-Y
operation.
@ VOLTS/DIV
Vertical attenuator for channel 2; provides step adjust-
ment of vertical sensitivity. When VARIABLE control
(j) 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
de component of channel 2 input
signal.
GND: 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
de measurements.
DC: Direct input
of ac and de 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.
@ CH21NV
In the NORM position (button released), the channel 2
signal is non-inverted. In the INV position (button
engaged).
the channel 2 signal is inverted.
(jJ) • POSITION, X-Y .......
Rotation adjusts vertical position of channel 2 trace.
In X-Y operation adjusts horizontal position of display.
CS-1020, 1010
@ AC-GND-DC
Three-position lever switch which operates as follows;
AC: Blocks de 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
de measurements.
DC: Direct input
of ac and de component of input
signal.
@ INPUT Jack
Vertical input and vertical input for X-Y operation.
9

10
®®
CS-1022, 1021, 1012
(j) !! ..
® !
CS-1022, 1021, 1012
@ MODE
Five-po&ition 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+CH2l 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 250kHz.
@ POWER, SCALE ILLUM (Except CS -1021 l
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.
(jJ) PILOT Lamp
Lamp Lights when oscilloscope is turned on.
.... !: ®
-....-..;c.,---®
:: @
:~ ®
Fig. 4
CS-1020, 1010
@ 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.
(jJ) PILOT Lamp
Lights when oscilloscope is turned on.