Kenwood CS-1100 User manual

CS-1 100•
(100MHz DUAL TRACEOSCILLOSCOPE)
INSTRUCTION MANUAL

SAFETY
SymbolinThis Manual
A Thissymbolindicateswhereapplicablecautionaryor
other information istobefound.
PowerSource
This equipment operates from a powersource that does
notapply more than 250V rms between thesupplycon-
ductorsor between eithersupplyconductorandground.A
protective groundconnectionbywayofthegroundingcon-
ductorinthepowercordisessentialforsafeoperation.
GroundingtheProduct
This equipment isgrounded through thegroundingconduc-
torofthepowercord.Toavoidelectricalshock, plug the
powercord into a properly wired receptacle before connec-
ting tothe equipment input or output terminals.
Use theProperPowerCord
Use onlythepowercordandconnectorspecifiedforyour
product.
Use theProperFuse
Toavoid fire hazard,usea fuseofthecorrecttype.
DonotOperateinExplosiveAtmospheres
Toavoidexplosion,donot operate thisproductinanex-
plosiveatmosphere.
DonotRemoveCoverorPanel
Toavoidpersonalinjury,donotremovethecoverorpanel.
Referservicingto qualified personnel.
CONTENTS
SAFETY 2
FEATURES 3
SPECIFICATIONS 4
PREPARATION FOB USE 6
CONTROLS ANDINDICATORS8
FRONTPANEL8
REAR PANEL12
OPERATION13
INITIAL STARTINGPROCEDURE13
{1)NORMAL SWEEP DISPLAYOPERATION13
(2)MAGNIFIEDSWEEPOPERATION15
(3)DELAYEDSWEEPOPERATION
(ALTERNATINGSWEEPOPERATION)15
(4)X-YOPERATION16
(5)VIDEOSIGNALOBSERVATION16
(6)SINGLESWEEPOPERATION16
APPLICATION17
PROBE COMPENSATION17
TRACE ROTATIONCOMPENSATION17
DCVOLTAGEMEASUREMENTS17
MEASUREMENTSOFTHEVOLTAGE
BETWEEN TWOPOINTSONA WAVEFORM18
ELIMINATION OFUNDESIREDSIGNAL
COMPONENTS18
TIME MEASUREMENTS19
FREQUENCY MEASUREMENTS19
PULSE WIDTH MEASUREMENTS20
PULSE RISETIMEANDFALLTIME
MEASUREMENTS20
TIME DIFFERENCE MEASUREMENTS21
PHASE DIFFERENCE MEASUREMENTS22
RELATIVE MEASUREMENTS22
PULSE JITTERMEASUREMENT24
SWEEP MULTIPLICATION (MAGNIFICATION) 24
DELAYED SWEEP TIME MEASUREMENT25
PULSE WIDTH MEASUREMENTSUSING
DELAYED SWEEP26
FREQUENCY MEASUREMENTSUSING
DELAYED SWEEP26
PULSE REPETITION TIME 27
USINGDELAYEDSWEEPFORMEASUREMENTSOF
RISETIMES ANDFALLTIMES27
TIME DIFFERENCEMEASUREMENTSUSING
DELAYED SWEEP28
X-YAPPLICATION28
ACCESSORIES 30
2

FEATURES
• With 1 mV/divsensitivityand100MHzbandwidth
(1mV/divwhenx5GAINfunctionisused).
• Fast 20ns/divsweepspeed(2ns/div with x 10
magnification).
•Verticalsensitivityerrorandsweeprateerrorare±3%
at10— 35°Candaccuratemeasurementsareprovid-
ed.
•The150mmrectangularCRT with internalgraticule
provides highbrightnessandaccuratemeasurements,
freeofparallaxerroranda 16kVacceleratingpotential.
•Forconvenienceinmakingrise time measurements,the
0%,10%,90%and100%levelsaremarkedonthe
graticule scale oftheCRT.
•Thebuilt-inauto-focuscircuitkeepsthewaveformsin
clear focusautomaticallyregardlessoftheINTENSITY
controlsetting.
•By SCALE ILLUMcontrol,thewaveformis easy observ-
edindarknedareaandphotographofthewaveformis
easy provideda singlephotographofthewaveform
superimposed onthegraticule scale.
•Delaysweepmodeisavailabletoobservetheportionof
waveform with magnificationas necessary.
•Singlesweeppermitsviewingandphotographingone-
time events.
•Thedelaylinepermitsviewingofleadingedgeofhigh-
frequency,fastrisetime pulses.
•TheVIDEOsynchronizationcircuitpermitstoobserve
videosignaleasily.
•x 10magnification,andalternatingsweepareprovid-
ed.
•The20MHzbandwidthHmiterincorporatedeliminates
high-frequency,noiseandstabilizessignalwaveforms
displayed.
•Thedualintensitycontrolcircuitpermitstovaryinten-
sities separatelyforA andB sweeps.
•A switchingtypepowersupplyprovidesstableopera-
tion with varyingpowersource(90V~264V).
•Provides with CH1OUTterminaltomonitorinputsignal
ofchannel1.
•SelectableAuto-freerunfunctionprovidessweep
withouttriggerinputsignal.
•VerticalMODEautomaticallydeterminesthetrigger
signal with V.MODEoftrigger SOURCE.
• DELAY TIMEMULTcontrolpermitstheaccurate time
measurements with thedial scale.
•X-Yoperationis easy providedbyone-touche.
3

SPECIFICATIONS
CRT
Model: 150HTM31
Rectangular, with internal
graticule
Acceleration Voltage:16kV
Display Area:8 x 10div
(1div = 10mm)
VERTICAL AXIS (CH1 andCH2)
Sensitivity: 5 mV/divto5 V/div
(x 1 mode)
1 mV/divto1 V/div
(x5 mode)
Accuracy: ±3%(10~35°C)
±5% (0~50°C)
Attenuator:10 steps, 5 mV/divto5 V/div
in1-2-5sequence.
Verniercontrolforfullyad-
justable sensitivitybetween
steps.
InputImpedance:1 MQ±2%,approx.22pF
Frequency Response:
x1 mode:DC;DCto100MHz,-3dB
AC; 5 Hzto100MHz,-3dB
5V/divrangeand
x5 mode:DC;DCto50MHz,-3dB
AC; 5 Hzto50MHz,-3dB
Risetime: 3.5 nsec or less (100MHz)
Signal DelayTime:Approx.10 nsec onthe
CRT screen.
Crosstalk —40dBminimum
OperatingModes:CH1;singletrace
CH2; singletrace
ADD;CH1+CH2addedasa
single trace.
ALT; dualtrace,alternating
CHOP; dualtrace,chopped
Chop Frequency:Approx.250kHz
Channel Polarity:Normalorinverted,channel
2 onlyinverted.
A Maximum Input
^Voltage:500Vp-por250V (dc+ ac
peak)
Non-Distorted Maximum
Amplitude: More than8 div(dcto
100MHz)
BandwidthLimiting:Verticalsystembandwidth
with the20MHzBWpush
button switchpushedisap-
proximately20MHz
HORIZONTALAXIS (Input thruCH2)
OperatingModes: With HORIZ. DISPLAY
switch, X-Yoperationis
selectable
CH1;Yaxis
CH2; X axis
Sensitivity: Sameasverticalaxis(CH2)
Accuracy: Sameasverticalaxis(CH2)
InputImpedance:Sameasverticalaxis(CH2)
Frequency Response DC;DCto5 MHz,—3dB
AC; 5 Hzto5 MHz,-3dB
X-Y Phase Difference:3°or less at100kHz
A Maximum Input
Voltage:Sameasverticalaxis(CH2)
SWEEP
Type: A;A sweep
ALT; A sweep(intensifiedfor
durationofB sweep)andB
sweep (delayedsweep)
alternating
B DLYD;Delayedsweep
X-Y; X-Y oscilloscope
Sweep Time:A;20ns/divto0.5s/divin23
ranges, in1-2-5sequence.
Verniercontrolprovidesfully
adjustable sweep time bet-
ween steps.
B; 20ns/divto50ms/divin
20ranges,in 1 -2-5se-
quence.
Accuracy: ±3%(10~35°C)
±6% (0~50°C)
Sweep Magnification:x 10(tentimes)
±5% (10~35°C)
±7% (0~50°C)
Linearity: ±3%(on20ns/divto
0.5s/div)
±5% (x10MAG)
Holdoff: Continuouslyvariable from
NORMtomorethanfive
times(MAX)
Trace Separation:B sweepcanbeseparated
downward from A sweepup
toapprox.4 divisions, con-
tinuouslyadjustable.
Delay Method (BMODE):Continuousdelay (STARTS
AFTER DELAY), Trigger
delay (TRIGGER)
4

COUPLING
FREQ.
RANGE
MINIMUM SYNC AMPLITUDE
COUPLING
FREQ.
RANGE
INT
EXT
DC
DC-50MHz
DC-100MHz 1.0div
1.5div 100mV
210mV
AC
Same asforDCbut with increased
minimumlevelforbelow20Hz.
AC
HFR£,
Increased minimumlevelbelow20Hz
andabove30kHz.
AC
LFfiEf
Increased minimumlevelbelow30kHz.
VIDEO
FRAME/LINE
0.5div 50mV
AUTO: Sameasabovespecificationsforabove50Hz.
•Circuitandratingsaresubjecttochangewithoutnotice
duetodevelopementsintechnology.
DelayTime:From200 nsec to0.5sec.
Availabledelay time is0.2
to10timestheA sweep
time setting,continuously
adjustable
TimeDifference
Measurement
Accuracy: ±2%(10~35°C)
±4% (0~50°C)
DelayJitter 1 /20000 oftentimesofA
sweep time setting
TRIGGERING
Trigger Mode AUTO,NORM, SINGLE
TriggerSourceV,MODE;Triggerselected
byverticalMODE
switch.
CH1; TriggeredbyCH1
signal
CH2: TriggeredbyCH2
signal
EXT; Triggeredbyex-
ternaltrigger
LINE; Triggeredbyline
voltage
Coupling AC, LFREJ, HF*^,DC,VIDEO
LINE sync (horizontal sync
pulses) automatically
selected atA sweeptimes
of50/is/divto20ns/div
andFRAME sync (vertical
sync pulses)automatically
selected atA sweeptimes
of0.5s/divto0.1ms/div
Polarity+/-
TriggerSensitivity
External "trigger:
Inputimpedance:1 MO,approx.40pF
A MaximamInput
^Voltage:250V (dc+ acpeak)
CALIBRATING VOLTAGE 1 V,±2%,squarewave,
positive polarity,1 kHz,
±3%
INTENSITY MODULATION
Sensitivity: TTLcompatible
positive voltage decreases
brightness,
negativevoltage increases
brightness.
InputImpedance:Approx.10kQ
Usable Frequency
Range: DCto5 MHz
A Maximum Input
^Voltage:50V (dc+ acpeak)
VERTICAL AXISSIGNALOUTPUT(CH1OUT)
OutputVoltage:50mVp-p/divinto50Q
OutputImpedance:Approx.50Q
Frequency Response: DCto100MHz,-3dB
into500 (Unappliedx 5
GAINmode)
POWER REQUIREMENT
Power Supply:90V-264V
Line Frequency:45Hz~ 400Hz
Power Consumption:Approx.60W (into 100V,
50Hz)
DIMENSIONS (WxHxD)
304(346) x 160(173) x
351(411) mm
() dimensionsincludepro-
trusion from basic outline
dimensions
WEIGHT: Approx.8.8kg
ENVIRONMENTAL
Within Specifications:10°Cto35°C,85%max.
relativehumidity
Full Operation:0°Cto50°C,90%max,
relativehumidity
ACCESSORIES SUPPUED
Probe: PC-29...2
InstructionManual:1
AC PowerCord:1
5

PREPARATION FORUSE
SAFETY
Beforeconnectingtheinstrumenttoa power source,
carefullyreadthefollowinginformation,thenverify that
theproperpowercordisusedandtheproperlinefuseisin-
stalled forpower source. Ifthepowercordisnotapplied
forspecifiedvoltage,thereisalwaysa certainamountof
danger from electric shock.
Line voltage
This instrumentoperatesusingac-powerinputvoltages
that 90V to264V atfrequencies from 45Hzto400Hz.
Power cord
The groundwireofthe3-wireacpowerplugplacesthe
chassis andhousingofthe oscilloscope atearthground.Do
not attempt todefeatthegroundwireconnectionor float
the oscilloscope; todosomayposea greatsafetyhazard.
The appropriatepowercordissuppliedbyanoption that is
specified whentheinstrumentisordered.
The optionalpowercordsareshownasfollowsinFig.1.
Line fuse
The fuseholderislocatedontherearpanelandcontains
thelinefuse.Verify that theproperfuseisinstalledby
replacing thelinefuse.
EQUIPMENT PROTECTION
1. Neverallowa smallspotofhighbrilliancetoremain sta-
tionaryonthe screen formorethana few seconds. The
screen maybecomepermanentlyburned.A spotwilloc-
cur onlywhenthe scope issetupforX-Yoperationand
nosignalisapplied.Eitherreducetheintensitysothe
spot isbarelyvisible,switchbacktonormalsweep
operationwhennosignalisapplied,orsetupthe scope
forspotblanking.
2. Nevercovertheventilatingholesonthetopofthe
oscilloscope, asthiswillincreasetheoperating
temperatureinsidethe case.
3. Neverapplymorethanthemaximumratingtothe
oscilloscope inputs.
CH1, CH2INPUT jacks: 500Vp-por250V (dc+ ac
peak)
EXT TRIGINPUTjack:250V (dc+ acpeak)
Z axisINPUTjack:50V (dc+ acpeak)
Neverapplyexternalvoltagetotheoscilloscopeoutput
terminals.
4.Alwaysconnecta cable from theearthground(GND)
jack ofthe oscilloscope tothe chassis oftheequipment
undertest. Without thiscaution,theentirecurrentfor
theequipmentundertestmaybedrawnthroughthe
probeclipleadsundercertain circumstances. Such con-
ditionscouldalsoposea safetyhazard,whichthe
groundcablewillprevent.
5.Alwaysusetheprobeground clips forbestresults.Do
notuseanexternalgroundwireinlieuoftheprobe
ground clips, asundesiredsignalsmaybeintroduced.
6.Operationadjacenttoequipmentwhichproducesstrong
ac magneticfieldsshouldbeavoidedwherepossible.
This includes such devicesaslargepowersupplies,
transformers, electricmotors,etc., that are often found
inanindustrialenvironment.Strongmagneticshields
can exceedthepracticalCRTmagneticshieldinglimits
andresultinterferenceanddistortion.
7.Probecompensationadjustmentmatchestheprobeto
.theinputofthe scope. Forbestresults,compensation
ofprobeshouldbeadjustedinitially,thenthesamepro-
bealwaysused with theinputof scope. Probecompen-
sation shouldbereadjustedwhenevera probe from a
different scope is used.
6

Plugconfiguration Powercordandplugtype
Factory installed
instrumentfuse
Line cord
plugfuse
Parts No.for
powercord
North American
120 volt/60 Hz
Rated15amp
(12ampmax;NEC)
1.2A,250V
Fast blow
AGC/3AG
None E30-1820-05
Universal Europe
220 volt/50 Hz
Rated16amp
1.2A,250V
Fast blow
5 x 20mm None E30-1819-05
U.K.
240 volt/50 Hz
Rated13amp
1.2A,250V
Fast blow
5 x 20mm
1.2A
TypeC
Australian
240 volt/50 Hz
Rated10amp
1.2A,250V
Fast blow
5x20mm None E30-1821-05
North American
240 volt/60 Hz
Rated15amp
(12ampmax;NEC)
1.2A,250V
Fast blow
AGC/3AG
None
Switzerland
240 volt/50 Hz
Rated10amp
1.2A,250V
Fast blow
AGC/3AG
5 x 20mm
None
Fig. 1 PowerinputVoltageConfiguration

CONTROLS ANDINDICATORS
FRONT PANEL
0T POSITIONControl
Rotationadjustsverticalpositionofchannel1 trace.
InX-Yoperation, rotation adjustsverticalpositionof
display.
(2)VOLTS/DIVControl
Verticalattenuatorforchannel1;providesstepadjustment
ofverticalsensitivity.When VARIABLE control(3)issetto
CAL, verticalsensitivityiscalibratedin10steps from
5 V/divto5 mV/div.
For X-Yoperation,thiscontrolprovidesstepadjustmentof
verticalsensitivity.
(D VARIABLE, PULL x 5 GAINControls
VARIABLE:
Rotationprovides fine controlofchannel1 vertical
sensitivity. Inthe fully clockwise(CAL)position,
theverticalattenuatoriscalibrated.ForX-Y
operation,thiscontrol serves astheY axisat-
tenuation fine adjustment.
PULL x 5 GAIN:
Whenpulledout,theVOLTS/DIVsettingis
multipliedbyfiveandforX-Yoperation,the Y-axis
sensitivity ismultipliedaccordingly.Inx 5 GAIN
mode,theverticalgainisincreasedandthetrace
becomes thickness.
(4) AC-GND-DCSwitch
Three-positionleverswitchwhichoperatesasfollows:
AC: Blocks dccomponentofchannel1 inputsignal.
GND:Openssignalpathandgroundsinputtovertical
amplifier.Thisprovidesa zero-signalbaseline,the
positionofwhichcanbeusedasa referencewhen
performingdcmeasurements.
DC: Directinputofacanddccomponentofchannel1
inputsignal.
(5)INPUT Jack
Verticalinputforchannel1 trace.VerticalinputforX-Y
operation.
(6)VOLTS/DIVControl
Verticalattenuatorforchannel2;providesstepadjustment
ofverticalsensitivity.When VARIABLE control(7)issetto
CAL, verticalsensitivityiscalibratedin10steps from
5 V/divto5 mV/div.
InX-Yoperation,thiscontrolprovidesstepadjustmentof
horizontalsensitivity.
8
Fig. 2

(7) VARIABLE, PULL x 5 GAINControls
VARIABLE:
Rotationprovidesfinecontrolofchannel2 vertical
sensitivity.Inthefullyclockwise(CAL)position,
theverticalattenuatoriscalibrated.InX-Yopera-
tion,thiscontrolbecomesthefinehorizontalgain
control.
PULL x5GAIN:
Whenpulledout,theVOLTS/DIVsettingis
multipliedbyfiveandforX-YoperationtheX-axis
sensitivityismultipliedaccordingly.Inx 5 GAIN
mode,theverticalgainisincreasedandthetrace
becomes thickness.
(DAC-GND-DCSwitch
Three-positionleverswitchwhichoperatesasfollows:
AC: Blocks dccomponentofchannel2 inputsignal.
GND:Openssignalpathandgroundsinputtovertical
amplifier.Thisprovidesa zero-signalbaseline,the
positionofwhichcanbeusedasa referencewhen
performingdcmeasurements.
DC: Directinputofacanddccomponentofchannel2
inputsignal.
(9)INPUT Jack
Verticalinputforchannel2 traceinnormalsweepopera-
tion.ExternalhorizontalinputinX-Yoperation.
@)CH2INVPush-buttonSwitch
Inthe NORM position (button released),thechannel2
signal isnon-inverted.IntheINVposition (button
engaged),thechannel2 signalisinverted.
(Q) y POSITION,X-Yo Control
Rotationadjustsverticalpositionofchannel2 trace.
InX-Yoperationadjustshorizontalpositionofdisplay.
®MODESwitch
Five-positionleverswitchwhich selects the basic
operatingmodesoftheoscilloscope.
CH1: Onlytheinputsignaltochannel1 isdisplayed
as a singletrace.
CH2: Onlytheinputsignaltochannel2 isdisplayed
as a singletrace.
ALT: Alternatesweepisselectedregardlessof
sweep time asdualtrace(CH1andCH2).
CHOP: Chopsweepisselectedregardlessofsweep
time atapproximately250kHzasdualtrace
(CH1andCH2).
ADD:Thewaveforms from channel1 andchannel2
inputsignalsareaddedandthesumis
displayedasa singletrace.WhentheCH2INV
(Q) button isengaged,thewaveform from
channel 2 issubtracted from thechannel1
waveformandthedifferenceisdisplayedasa
single trace.
I—NOTE:• ,
Thevariousverticalmodesettingsarerelatedto
horizontalmodeandtriggersource.Seethesection
onHORIZDISPLAYand SOURCE fora descriptionof
thisrelationship.
@ 20MHzBWPush-buttonSwitch
Limits theverticalbandwidthtoapproximately20MHz
whenengagedthisbutton.
@ POWER, SCALE ILLUMControls
Fully counterclockwise rotation ofthiscontrol(OFF posi-
tion) turnsoffoscilloscope.Clockwise rotation turnson
oscilloscope. Furtherclockwise rotation ofthecontrolin-
creases theilluminationlevelof scale.
(3)PILOTLamp
Lights whenoscilloscopeisturnedon.
@ JLGNDterminal/bindingpost.
Earth and chassis ground.
@ CAL,1 Vp-p,^ 1 kHzTerminal
Provides 1 kHz,1 Voltpeak-to-peaksquarewavesignal.
This isusefulforprobecompensationadjustment.
®) TRACE ROTATIONControl
Electrically rotatestracetohorizontalposition.
Strongmagneticfieldsmay cause thetracetobetilted.
Thedegreeof tilt mayvaryasthescopeismoved from one
locationtoanother.Inthese cases, adjustthiscontrol.
© FOCUS Control
Adjusts thetracefor optimum focus.
(§)A INTENSITY,B INTENSITYControls
AllowsadjustmentofintensityfortheA sweepandB
sweep respectively.
A INTENSITY:
Adjusts thetraceintensityforA sweepandthe
displayintensityforX-Yoperation.
B INTENSITY:
Adjusts theintensityoftheB sweep.
<£j)ASTIGControl
Astigmatismadjustmentprovides optimum spotroundness
whenusedinconjunction with FOCUS controlregardless
intensitycontrol.
@ LEVEL Control
Triggerleveladjustmentdeterminespointonwaveform
wheresweepstarts.
WhenCOUPLINGswitchisselectedinVIDEO,thetrigger
leveladjustmenthasnoeffect.

Fig. 3
@> SLOPE Control,B MODE Switch
Used toselectdelaysweepmodeby SLOPE switch.
SLOPE: Selectspositivegoing( + ) ornegativegoing(-).
+ equalsmostpositive point of triggering and
— equalsmostnegative point oftriggering.
B MODE:
PULL-STARTS AFTER DELAY
B sweepis triggered immediately after thedelay
set byA SWEEP TIME/DIVandDELAYTIME
MULTcontrols.
NORM-TRIGGER
B sweepstarts immediately after thedelay time
selectedbytheDELAYTIMEMULTand SWEEP
TIME/DIVcontrols.Evenwhenthisswitchisin
NORM position with the trigger MODEswitchset
toAUTO, turning the trigger LEVEL clockwiseor
counterclockwisereleasethe trigger andsetthe
scope toB STARTS AFTER DELAYoperation.
@>TRIG'DLamp
GreenLEDlightsfor duration of triggered A sweep;shows
when trigger LEVEL controlisproperlysetto obtain trigger-
ing.
© SOURCE Switch
Five-positionleverswitch;selects triggering sourceforthe
sweep, with following positions;
V.MODE:The trigger sourceisdeterminedbyvertical
MODEselection.
CH1: Channel1 signalisusedasa trigger
source.
CH2: Channel2 signalisusedasa trigger
source.
ADD:Thealgebraicsumofchannel1 and
channel2 signalisthe trigger source.(If
CH2INVengaged,thedifference
becomesthe trigger source.)
ALT: Displayisalternately triggered byCH1
andCH2.
CHOP: Thedisplaycannotbesynchronized
with the input signalsincethechopping
signalbecomesthe trigger source.
CH1: Sweepis triggered bychannel1 signal
regardlessofverticalMODEselection.
CH2: Sweepis triggered bychannel2 signal
regardlessofverticalMODEselection.
EXT: Sweepis triggered bysignalappliedtoEXTTRIG
INPUTjack@ .
LINE: Sweepis triggered bylinevoltage.
@ COUPLINGSwitch
Five-positionleverswitch;selectscouplingfor sync trigger
signal.
AC: Triggerisaccoupled.Blocksdccomponentofin-
putsignal;mostcommonlyusedposition.
\fREJ\ Syncsignaliscoupled through high-pass filter to
eliminatelow-frequencycomponentsforstable
triggering ofhighfrequencysignals.
HFRE,: Syncsignaliscoupled through a low -pass filter
toeliminatehigh-frequencycomponentsfor
stable triggering oflowfrequencysignals.
DC: The sync signalisdccoupledfor sync whichin-
cludes theeffectsofdccomponents.
VIDEO:Forsynchronizationofvideosignals.Theposi-
tion oftheA SWEEP TIME/DIVcontroldeter-
mineswhetherFRAMEorLINEistobesyn-
10