DigiPos DS-810 Instructions d'exploitation

The71380Time-BaseunitoperateswithaTektronix7700-,7800-,and7900-seriesoscilloscopemainframesanda7A-seriesamplifierunittoforma completeoscilloscopesyste

7880REV.BSEP1977Fig.8-8.A1-Interfacecircuitboardassembly.11-BXL039'(1314_5314CR314JUDR32L'_8325_533_',C335,8335;024-'F13YCR324;.

R715ELI111' .R355R728''.(13521;11356R353.I F1'K1..3142,(1304~Lu,R3211C844-1,,11i1"I!10411-~23i~R215R51?t 11II1.:1

VOLTAGEANDWAVEFORMCONDITIONSThevoltagesandwaveformsshownwereobtained withthe71380controlssetasfollows:TIME/DIV,1ms;VARIABLE(CALIN),knobin;MAG,X1(butto

7B80REV.BSEP1977J5P3R308R33734C8408439CR301CR302LR840R426R301R30R33R4281C0312R423427R440.54R3520I04042428LR820R447R336CR446R333R312R4488440R4&

R711Q2100214-.1°"C228C225U844R244J30062126246226CR224R242H213CR22C6224.6215R228R5102420204.6204C2216207C21162416358CR202 CR2068208.6206C35

58005725Fig.8-10.A3-Readoutcircuitboardassembly.P211959-47CKTNOGRIDCOORDCKTNOGRIDCOORDCKTNOGRIDCOORDCR7251C R751 2BR7822DCR7512BR7522B R7832DCR7522B R

VOLTAGEANDWAVEFORMCONDITIONSThevoltagesandwaveformsshownwereobtainedwiththe71380controlssetasfollows:TIME/DIV,1ms;VARIABLE(CALIN),knobin;MAG,X1(button

Fig.1-2.Front-panelcontrols,connectors,andindicators.

7B80REV.BSEP1977Fig.8-11.A1-Interfacecircuitboardassemb.;G314.naffsGalaCR314.r-B=..R313_-UU'.,BM_',_83Z5~,R335.!':MAP'.,iCR324CK

.B31L8314'-,B323-R321. .. . .83253510324'022CR324iR32JVal0732IT"""Wirl~~R35318114R7U;024__R7u,...,-.R706-.eR1.14.R728R717CR

Fig.8-12.A3-Readoutcircuitboardassembly.1959-49CKTNOGRIDCOORDCKTNOGRIDCOORDCKTNOGRIDCOORDCR7251C R751 28R7822DCR7512BR7522BR7832DCR7522BR7562C R784 2C

7B80R429IwoR427'ER423H447.'U4280424R449Q448C440'.84408459R454Q45FREV.BSEP1977Fig.8-13.A1-Interfacecircuitboardassembly.aCKTNOGRIDCOORDC

B7150304MvA35i.d.0342,11356R353"YK3148354.:C3Z4', . ..9115.6,X1338..,(13148314CR314;eg323;smacS800-+sfl732..513,."R706..,t3I1A._R71

TRIGGERINGLEVELControl-Selectsapointonthetriggersignalwheretriggeringoccurs.SLOPESwitch-Permitssweeptobetriggeredonnegative orpositive-goingportionsof

7B803ABFJEa 0TIG0El~]1986-54Fig.8-14.A5-X-YSwitchcircuitboardassembly.A5X-YSWITCHCKTNOGRIDCOORDCKTNOGRIDCOORDCR9651BS9353BS9363BR9612BR9622B T9352DR96

+~1l~~oSer,,dyirW.1Seee~oWe.H-lloff~sJilR80SLOPEBALFig.8-16.LocationofTriggeringadjustments.R85DCBALR430C330MAGGAIN50nsTIMINGFig.8-15.LocationofSw

.R71510msTIMINGC33050nsTIMINGSweepTimingadjustments.A2TRIGGER

PARTSORDERINGINFORMATIONReplacementpartsareavailablefromorthroughyourlocalTektronix,Inc.FieldOfficeorrepresentative.ChangestoTektronixinstrumentsareso

OperatingInstructions-713805.Setthemainframeverticalandhorizontalmodestodis-playtheplug-inunitsusedandadjusttheintensityandfocusforawell-defineddispla

ReplaceableMechanicalParts-71380Mfr.CodeManufacturer9-2CROSSINDEX-MFR.CODENUMBERTOMANUFACTURERAddressCity,State,ZipREV.CJUNE197807707USMCORP.,USMFAST

ReplaceableMechanicalParts-7B80REV.DJUNE19789-3Fig.&IndexNo.TektronixSerial/ModelNo.PartNo.EffDscontQty12 3 4 5Name&DescriptionMfrCodeMfrPartN

ReplaceableMechanicalParts-7880Fig.&IndexTektronixSerial/ModelNo.No.PartNo.EffDscontQty12 3 4 5Name&DescriptionCodeMfrPartNumberMfr9-

ReplaceableMechanicalParts-71380Fig.&IndexTektronixSerial/ModelNo.No.PartNo.EffDscontQty12 3 4 5Name&DescriptionCodeMfrPartNumberMfrR

ReplaceableMechanicalParts-7880Fig.&IndexTektronixSerial/ModelNo.MfrNo.PartNo.EffDscontQty12 34 5Name&DescriptionCodeMfrPartNumber9-

Fig.&IndexTektronixSerial/ModelNo.MfrNo.PartNo.EffDscontQtysa n sName&DescriptionCodeMfrPartNumber2-STANDARDACCESSORIES-1070-1958-001MA

OPTION2X-YDisplayc4uSerial/ModelNo.MfrEffDscontQty123 ° 5Name&DescriptionCodeMfrPartNumber1FRAME,PUSHBTN:PLASTIC80009426-1072-0071PANELFRONT:

MANUALCHANGEINFORMATIONAtTektronix,wecontinuallystrivetokeepupwithlatestelectronicdevelopmentsbyaddingcircuitandcomponentimprovementstoourinstrumentsa

8.PresstheACCOUPLING,INTSOURCE,andNORMMODEbuttons.Adjust theLEVELcontrolforastabledisplay.9.PresstheAUTOMODEbuttonandadjust theLEVELcontrol forafree-r

CALIBRATIONTESTEQUIPMENTREPLACEMENTCalibrationTestEquipmentChartThischartcomparesTM500productperformanceto that ofolderTektronixequipment.Onlythosecha

7B50A(070-1986-00)7B80(070-1959-00)7B85(070-1961-00)MANUALCHANGEINFORMATIONTEKTRONIX0PRODUCT7B50A,7B80&7B85CHANGEREFERENCEC4/978committedtotech

TEKTRONIX©-committedtotechnicalexcellenceCHANGE:IDESCRIPTIONEFFSNB054000(7B80)070-1959-00EFFSNB084000(7B85)070-1961-00MANUALCHANGEINFORMATIONPRODUCT7

OperatingInstructions-71380Thenormaltriggermodemustbeusedtoproducetriggereddisplayswithtriggerrepetitionratesbelowabout30hertz.WhentheTRIG'Dlight

EXTERNAL.TheEXTpositionconnectsthesignalfromtheEXTTRIGINconnectortothetrigger circuit.Theex-ternal signalmustbe time-related tothedisplayedwave-formfo

Fig.1-3.Effect ofLEVELcontrolandSLOPEswitchoncrtdisplay.

MainframeOperatingModesThetime-baseunitcan beoperatedeitherasanindepen-denttimebaseinanyTektronix7700-,7800-,or7900-seriesoscilloscopemainframe, orasa

OperatingInstructions-71380Thefollowinginformationdescribesproceduresandtechniquesformakingbasictimemeasurementswiththe time-baseunitinstalledinaTektr

9.Determinethefrequencyofthedisplayedwaveformob-tainedinsteps1through8bytaking thereciprocalof theperiodof1cycle.Example:Assumethattheperiod of thedis

OperatingInstructions-713808.Multiplythehorizontaldistancemeasuredinstep7 bytheTIME/DIVswitchsetting.(Dividetheanswer by 10ifsweepmagnificationisused.

SPECIFICATIONThisinstrumentwillmeettheelectricalcharacteristicslisted inTable2-1,followingcomplete adjustment.Thefollowingelec-tricalcharacteristicsap

Specification-71380TriggerHoldoffTimeMinimumHoldoffSetting5s/Divto1ps/Div0.5ps/Divto10ns/DivVariableHoldoffRangeCharacteristic2-2InternalTriggerJitter

TABLE2-2EnvironmentalCharacteristicsRefertotheSpecificationsectionoftheassociatedmainframemanual.NetWeightDimensionsTABLE2-3PhysicalCharacteristicsApp

Thissectionofthemanualdescribesthecircuitryusedinthe7880Time-Baseunit.Thedescriptionbeginswithadiscussionof theinstrument,usingthe block diagramshowni

TheoryofOperation-7B80Input/OutputTablesInput/Output(truth)tablesareusedtoshowtheinputcombinationsimportanttoaparticularfunction,alongwiththeresultant

SymbolDescriptionAdevicewithtwoormoreinputsandoneoutput.TheoutputoftheANDgateisHIifandonlyifalloftheinputsareattheHIstate.Adevicewithtwoormoreinputsan

TheoryofOperation-71380SymbolDescriptionAsmallcircleattheinputoroutputofasymbolindicatesthattheLOstateisthesignificantstate.Absenceofthecircleindicate

TABLE3-1(cont)TheoryofOperation-71380DescriptionAbistabledevicewiththreeormoreinputsandtwuoutputs(eitherorbothoutputsmaybeused).Whengated,theoutputsch

Fig.3-2.Detailedblockdiagramof TriggerGenerator.

FRONT-PANELDISTRIBUTIONTheFront-PanelDistributiondiagramshowstheintercon-nectionsbetweenfront-panelfunctions(controls,connect-ors,andindicators)andcir

TheoryofOperation-7880+TRIGGERTRIGGER1986-62PEAK-TO-PEAKLEVELRANGE.ThePeak-to-PeakLevelRangestageamplifiesthepeakDetectorsignalstoprovideconstantampli

GateGeneratorTheGate Generatorstageprovidesan autoenablegate totheLogiccircuits(diagram3),andasweepstartgateandZ-axisgate(unblanking)totheSweepGenerat

TheoryofOperation-71380NORMALMODE.TheNORMMODEisprovidedwhenU220-pin12isLO.IntheNORMMODE,only anappro-priatetriggersignalcaninitiateasweepgate totheSwe

Q204preventthesweepdisableoutpulseatU220-pin17fromfallingLOuntilthe timingcapacitorshavedischarged.TransistorsQ212andQ214andfront-panelHOLDOFFcontrolR

Fig.3-6.DetailedblockdiagramofSweepGenerator.

Fig.3-6.DetailedblockdiagramofSweepGenerator(cont.).

TheoryofOperation-71380ThePositionVoltageSourcestagecombinesthe dovoltagesoftheFINEandPOSITIONcontrolsforapositionvoltagelevel attheoutputofoperationa

TABLE3-2ReadoutCharacterSelectionTheoryofOperation-71380CharactersTime-SlotDescriptionEncodedByDecimalTS-1DeterminesdecimalmagnitudeR751,13752(numbero

PAGELISTOFILLUSTRATIONS. .. . . . . . . . . . . . . . . . .iiiLISTOFTABLES.. . . . . ... . . . . . . . . . . . . . . ..ivSAFETYSUMMARY. . ... . .

Thissectionofthemanualcontainsinformationforperformingpreventivemaintenance,troubleshooting,andcorrectivemaintenanceforthisinstrument.Preventivemainte

Maintenance-71380CamSwitchLubricationInmostcases,factorylubricationshouldbeadequateforthelifeoftheinstrument.However,iftheswitch hasbeendisassembledfo

Thefollowing informationisprovidedtohelp troubleshootthisinstrument.Information containedinothersectionsofthismanualshouldbeusedalongwiththefollowing

Fig.4-2.Semiconductorleadconfiguration.

Fig.4-3.Inter-boardmulti-pinconnectorassembly.PerformanceCheckandAdjustmentThePerformanceCheckandAdjustmentprocedure,giveninsection5ofthismanual,provi

Maintenance-71380Transistor Tester(Cont.)MultimeterRecommendedTektronixtypes:576CurveTracer,577/177CurveTracersystem,7CT1NCurveTracerunitanda7000-seri

NOTEVoltagesandwaveformsgivenonthediagramsarenotabsoluteandmayvaryslightlybetweeninstruments.Toobtainoperating conditionssimilartothoseusedtotakethese

Fig.4-6.71380troubleshootingchart.

Correctivemaintenanceconsistsofcomponentreplacementandinstrumentrepair.Specialtechniquesrequiredtoreplacecomponentsin thisinstrumentaregivenhere.OBTAI

Maintenance-713802.Whenthesolder begins tomelt,gentlypulltheleadout.Ifunabletopullout theleadwithoutusingforce,tryre-movingtheotherendofthecomponentas

71380InstructionSECTION3THEORYOFOPERATIONBLOCKDIAGRAMDESCRIPTION. . . . . . . . . . .3-1DETAILEDCIRCUITDESCRIPTION. . . . . . . . .3-1LOGICFUNDAMENTAL

REMOVEREADOUTBOARDASFOLLOWS:1.Noteindexofmulti-pinconnectorattachedtoboardanddisconnectcable.2.Loosensetscrewonvariableswitchassembly.3.RemoveVARIABLE

Maintenance-713803.Installgrayplasticrearpanelwith4securingscrews.4.ReplaceTIME/DIVknobonshaft.Alignknobindexwith 2msposition;then,tighten2setscrewson

WARNINGHandlesiliconegreasewithcare.Avoidgettingsiliconegreaseineyes.Washhandsthoroughlyafteruse.Replacementdevicesshouldbeoftheoriginaltypeoradirectr

Fig.4-9.Camswitchremovalprocedure.

Fig.4-10.Removalprocedurefortypicalpush-buttonswitch.

Maintenance-713804-16Fig.4-11.Explodedviewofcircuit-boardpinandferrule.Fig.4-12.Front-panellightsocketassembly.Toreplace adamagedpinwhichismountedonas

PERFORMANCECHECKANDADJUSTMENTThissectioncontainsinformationnecessarytoperforma completeinstrumentperformance checkandadjustment.Limitsgiveninthe proce

PerformanceCheckandAdjustment-71380TABLE5-1TestEquipment5-2REVA,MAY1978ExamplesofApplicableDescriptionMinimumSpecificationsPurposeTestEquipment1 .Osc

A.TRIGGERINGSYSTEM1 .AdjustDCBalanceandSlopeBalance(1385,R80).N/ 2.CheckTriggeringModes-v/3.CheckExternalLevelRangeN/4.CheckExternalTriggeringSensitiv

PerformanceCheckandAdjustment-71380BEFOREYOUBEGIN,seeControlSettingsSet the 71380controlsasfollows:5-4TRIGGERINGA7.ADJUSTDCBALANCEANDSLOPEBALANCE(1385

FIGURENO.Frontispiece. . . . . . . . . . . . . . . . . . . . ..vi1-1Locationofreleaselatch. . . . . . . . . . . . .1-11-2Front-panelcontrols,connect

d.SettheTRIGGERINGMODEtoAUTO.N/e.CHECK-SettheTRIGGERINGLEVELcontrolforastabledisplay(TRIG'Dlighton).Vf.CHECK-Forafree-running displaywithTRIG&apo

PerformanceCheckandAdjustment-71380-./h.CHECK-SettheSLOPEto(+)andrepeat partg.i.Set theamplifierunitdeflection factorfor50milli-volts/divisionandthelo

h.Setthelow-frequencysine-wavegeneratorandtheamplifierunit deflection factorfora2-divisiondisplayat50hertz.~/i .CHECK-Forastabledisplay(TRIG'Dlig

PerformanceCheckandAdjustment-71380ControlSettingsSet the71380controlsasfollows:5-8BEFOREYOUBEGIN,seeTRIGGERINGMODEAUTOCOUPLINGACSOURCEINTSWEEPPOSITIO

d.ADJUST-13430(MagGain)for1marker/divisionoverthecenter8divisionsofdisplay.e.Set thetime-markgeneratorfor5-millisecondmar-kers.Alignthecentertimemarke

PerformanceCheckandAdjustment-71380b.SetthePOSITIONcontrols tomidrangeandTRIG-GERINGMODEtoNORM.N/c.CHECK-UsingtheTIME/DIVsettingandtime-markgenerators

'Checkfor1time-markerin2divisionsoverthecentereightdivisions.JPerformanceRequirementcheck;seeintroductorysection.TABLE5-3MagnifiedSweepTimingPerf

REPLACEABLEELECTRICALPARTSPARTSORDERINGINFORMATIONReplacementpartsareavailablefromorthroughyourlocalTektronix,Inc.FieldOfficeorrepresentative.Changest

ReplaceableElectricalParts-7B80Mfr.CodeManufacturer6-2CROSSINDEX-MFR.CODENUMBERTOMANUFACTURERAddressCity,State,ZipREV.CJUNE197800853SANGAMOELECTRICCO

ReplaceableElectricalParts-78801Replaceableunder672-0538-XXonly.REV.CJUNE19786-3CktNo.TektronixPartNo.Serial/ModelEffNo.DscontName&DescriptionMfrC

71380InstructionLISTOFTABLESTABLENO.PAGETABLENO.PAGE2-1ElectricalCharacteristics.. . .. . . . . . . . .2-13-2ReadoutCharacterSelection. . . . . . .. .

ReplaceableElectricalParts-7880TektronixSerial/ModelNo.MfrCktNo.PartNo.EffDscontName&DescriptionCodeMfrPartNumber6-4REV.DJUNE1978C312283-0

TektronixSerial/ModelNo.MfrCktNo.PartNo.EffDscontName&DescriptionCodeMfrPartNumber1Option2only.REV.EJUNE1978ReplaceableElectricalParts-788

ReplaceableElectricalParts-71380TektronixSerial/ModelNo.MfrCktNo.PartNo.EffDscontName&DescriptionCodeMfrPartNumberloption2only.6-6REV.CJUN

REV.EJUNE1978ReplaceableElectricalParts-713806-7CktNo.TektronixPartNo.Serial/ModelNo.EffDscontName&DescriptionMfrCodeMfrPartNumberR54315-0622-00RE

ReplaceableElectricalParts-7B806-8REV.DJUNE1978CktNo.TektronixSerial/ModelNo.PartNo.EffDscontName&DescriptionMfrCodeMfrPartNumberR217321-0288-00B0

ReplaceableElectricalParts-7880REV.CJUNE19786-9CktNo.TektronixPartNo.Serial/ModelNo.EffDscontName&DescriptionMfrCodeMfrPartNumberR352315-0222-00RE

ReplaceableElectricalParts-7B80TektronixSerial/ModelNo.MfrCktNo.PartNo.EffDscontName&DescriptionCodeMfrPartNumberloption2only.6-10REV.CJUN

loption2only.REV.AJUNE1978ReplaceableElectricalParts-7880TektronixSerial/ModelNo.MfrCktNo.PartNo.EffDscontName&DescriptionCodeMfrPartNumbe

INSTRUMENTOPTIONSSection7-71380Yourinstrumentmaybeequippedwithoneormoreinstrumentoptions.Abriefdescriptionofeachoptionisgiveninthefollowingdiscussion.

InstrumentOptions-71380TABLE7-1OptionInformationLocator8DiagramandCircuitBoardIllustrationsReplaceableelectricalpartsarelistedinSection6ofthismanual.P

Thismanualcontainssafetyinformationwhichtheusermustfollowtoensuresafeoperationofthisinstrument.WARNINGinformationisintendedtoprotecttheoperator;CAUTIO

ThisoptionprovidesameanstoobtainanX-Ydisplay.Thehorizontalandvertical(X-Y)signalsareappliedtotheinputs ofadual-traceamplifierunit,ortwosingleamplifier

Option2-71380InternalSweepOperationWhentheDISPLAYMODEpushbuttonispressedandlatchedtotheIN:TIMEBASEposition,allfunctionsandcontrols oftheinstrumentoper

3.Theattenuatorswitchof theverticalchannelinthehori-zontalsignalpathprovidesmanydeflection-factorsettingstoallowfull-rangeamplitudecontrol.OPERATIONWI

Option2-71380Figure2)andtheoverallhorizontaldistanceofthedisplaySubstitutingvalues:(B)iseightdivisions.2.7divisionssin(PhaseAngle)==0.33758divisions

ThefollowinginformationprovidesadescriptionofelectricaloperationoftheOption2TimeBaseX-Yfunctionandisin-tendedtosupplementthecircuitoperationdescriptio

Option2-71380TheHIlevelpreventsmainframeswitchingcommandsfromaffectingtheX-Ydisplay.ThissameHIleveliscoupledthroughtheLockoutBufferAmplifier(Q201,Q202

SymbolsandReferenceDesignatorsElectricalcomponentsshownonthediagramsareinthe followingunitsunlessnotedotherwise:SymbolsusedonthediagramsarebasedonANSI

Fig.8-1.Semiconductorleadconfigurations.

Fig.8-2.Locationofcircuitboardsinthe7B80.

71380FeaturesThe7880Time-Baseunitprovidescalibratedsweepratesfrom5secondsto10nanosecondsandtriggeringto400megahertzfor7700-, 7800-,and7900-seriesoscil

7B80REV.CMAY1978Fig.8-6.A1-InterfacecircuitboardassernMB::ast4xCR314".9_WR139L'-WCKTNOGRIDCOORDCKTNOGRIDCOORDCKTNOGRIDCOORDCKTNOGRIDCOORDC

L114 _ .._5314j1314"k_R7z3_~.,321_-Mz5andassembly.*SeePartsListforserialnumberranges.A2TRIGGERA1INTERFACETGRIDCOORDCKTNOGRIDCOORDCKTNOGRIDCOORDC

Fig.8-7.A2-Triggercircuitboardassembly.CKTNOGRIDCOORDCKTNOGRIDCOORDCKTNOGRIDCOORDCKTNOGRIDCOORDCKTNOGRIDCOORDC35EC771EQ224BR433CR832DC5 4EC842DQ48*2ER

VOLTAGEANDWAVEFORMCONDITIONSThevoltagesandwaveformsshownwereobtained withthe7B80controlsset asfollows:TIME/DIV,1ms;VARIABLE(CALIN),knobin;MAG,X1(butto