HP-1430C-Manual 电路图.pdf

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1、 HP Archive This vintage Hewlett Packard document was preserved and distributed by www. Please visit us on the web ! On-line curator: Daniel Sheen RadioFans.CN 收音机爱 好者资料库 OPERATINGANDSERVICEMANUAL SAMPLER 1430C HEWLETTPACKARD :c . . = Cl RadioFans.CN 收音机爱 好者资料库 OPERATINGANDSERVICEMANUAL MODEL1430CSA

2、MPLER SERIALS PREFIXED:1217A RefertoSectionVIIforinstrumentswithother Serial Prefixes. HEWLETT-PACKARDCOMPANY/COLORADOSPRINGSDIVISION 1900GARDENOFTHEGODSROAD,COLORADOSPRINGS,COLORADO,U.S.A. Manual Part Number 01430-90905. Microfiche Part Number 01430-90805. PRINTED:AUG 1972 RadioFans.CN 收音机爱 好者资料库 T

3、ableofContentsModel1430C TABLEOFCONTENTS SectionTitle PageSectionTitlePage GENERALINFORMATION.I-I 2-1.Introduction.2-1 2-3.InitialInspection. . . . . . . . . .2-1 2-6.PreparationforUse.2-1 2-8.Claims. . . . . . . . . . . . . . . .2-1 2-10.Repackagingfor Shipment. . . . . . . . . . . .2-1 5-1 5-2 5-2

4、 5-3 5-7 5-6 6-1 5-5 5-4 5-5 REPLACEABLEPARTS. 5-9.RisetimeandOvershoot. 5-14.DynamicRange. 5-19.LowFrequencyDistortion. 5-24.TangentialNoise. 5-29.TimeDifference Between Channels. 5-34.Adjustments. 5-37.BiasCenteringand DiodeBiasAdj (Models 1811A/1430C). 5-41.BiasCenteringand DiodeBiasAdj (Models 1

5、411A/1430C). 5-45.LowFrequencyDis- tortionAdj. VI I-I 1-2 2-1 I-I. 1-5. 1-8. 1-10. 1-12. 1-14. Introduction.I-I Description.I-I Warranty. . . . .I-I AccessoriesFurnishedI-I AvailableAccessories. InstrumentandManual Identification. 1-18.Inquiries:. INSTALLATION.II I III IV V OPERATION. 3-1.Introducti

6、on. 3-3.Input/OutputConnectors. 3-4.Type. 3-6.Description.,. 3-8.OperatingConsiderations. 3-9.Cables:. 3-11.SignalTermination. 3-16.UsingModel1430Cwith CWSignals. 3-18.ChangingSamplers. 3-20.OperatingPrecautions. 3-21.MaximumSafeInput. 3-25.RoughHandling. 3-27.Wide-bandTDR. 3-28.General. 3-33.Displa

7、yInterpretation. 3-39.Risetime. 3-41.Reflection Coefficient (p). 3-45.OperatingProcedure. PRINCIPLESOFOPERATION. 4-1.Introduction. 4-3.OverallDescription. 4-7.CircuitDetails. 4-9.PulseGenerator. 4-15.SamplingAssembly. 4-21.Preamplifier. PERFORMANCECHECKAND ADJUSTMENTS. 5-1.Introduction. 5-3.TestEqui

8、pment. 5-5.PerformanceCheck. 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-2 3-2 3-2 3-2 3-2 3-2 3-3 3-3 3-3 3-3 4-1 4-1 4-1 4-1 4-2 4-2 4-2 5-1 5-1 5-1 5-1 6-1.Introduction. 6-3.OrderingInformation. VIIMANUALCHANGESAND OPTIONS. 7-1.Introduction. 7-3.ManualChanges. 7-5.SpecialOptions. 7-9.StandardOptions. V

9、IIISCHEMATICSANDTROUBLE- SHOOTING. 8-1.Introduction. 8-3.ComponentIdentification. 8-5.Schematics. 8-7.RepairandReplacement. 8-9.ServicingEtchedCircuit Boards. 8-12.RemovingSampling Diodes. 8-14.StriplineandStep-recovery DiodeReplacement. 8-19.Troubleshooting. 8-23.Distortion. 8-25.ExcessiveNoise. 8-

10、27.StepinRisetime. 8-29.SlowRisetime. 8-31.CheckingSamplerDiodes aIfdSamplerBlock. 8-37.BothChannelsAffected. 8-39.OneChannelAffected. 6-1 6-1 7-1 7-1 7-1 7-1 7-1 8-1 8-1 8-1 8-1 8-1 8-1 8-1 8-2 8-3 8-3 8-3 8-3 8-3 8-3 8-4 8-4 11 Model 1430C LISTOFILLUSTRATIONS ListofIllustrations ListofTables Figur

11、eTitlePageFigureTitle Page 1-1.Model 1430CSampler.,.1-0 5-6.BiasCenteringWave- 1-2.InstrumentSerialNumber.1-1forms.5-5 3-1.TimeBaseTriggering.3-0 5-7.LowFrequencyDis- 3-2.TriggeringwithCountdown tortion.5-7 Device.3-08-l.DiodeRemoval.8-1 3-3.Using1430CwithHFCW8-2.DiodeandResistor Signal.3-0Assy.8-2

12、3-4.TDRConnections.3-28-3.BiasCenteringWave- 4-1.SamplerBlockDiagram. 4-1 forms.8-4 4-2.ShiftinSignalLevel. 4-2 8-4.ComponentIdentification, 4-3.TRvsSamplingTime. 4-3 BottomView.8-5 5-1. RisetimeTestSetup.5-1 8-5.AdjandComponentIdenti- 5-2.DynamicRangeTest fication,TopView. . . . . . . . . . .8-5 Se

13、tup.5-28-6.P4CableConnections.8-6 5-3. NoiseTestSetup.5-38-7.ComponentIdentification, 5-4.NoiseMeasurementA3, A4andA6.8-7 Display.5-4 5-5.TimeDifferenceTest 8-8.Model 1430CSampler Setup.5-4 Schematic. 8-7 1-1.Model 1430C Speci- fications. . . . . . . . . . . . . . . . . .1-0 1-2.ReferenceDesignators

14、 andAbbreviations. . . . . . . . . .1-2 2-1.ShippingCartonTest Strength. . . . . . . . . . . . . . . . . . . . . . . . .2-1 5-1.RecommendedTest Equipment. . . . . . . . . . . . . . . . . . . . . . .5-0 PerformanceCheckRecord. . . .5-4a/b 6-1.Abbreviationsfor Replace- ablePartsList. . . . . . .6-1 6-

15、2.ReplaceableParts. . . . . . . . . . . . . . .6-2 6-3.ListofManufacturers Codes.6-5 7-1.ManualChanges.7-1 8-1.SchematicNotes. . . . . . . . . . . . . . . . . . . . .8-5 8-2.DCVoltageandWaveform MeasurementConditions. . . . . . . . .8-6 Table LIST OF TABLES TitlePage HI General InformationModel 1430

16、C 1430C-R-3 Figure 1-1. Model 1430C Sampler Table 1-1. Model 1430C Specifications RISETIME:approx20ps28ps observed with 1105A/ll06Bpulsegeneratorand909AOption 012,50-ohmload). BANDWIDTH:deto18GHz. OVERSHOOT:7.5%. NOISE:10mVunsmoothed;2.5 mV smoothed. Both measured tangentially. DYNAMICRANGE:1volt. L

17、OWFREQUENCY DISTORTION:5%. MAXIMUMSAFE INPUT:3 volts. 1-0 INPUT CHARACTERISTICS Mechanical:typeN connectorsoninputand outputparts. Electrical:50-ohmfeedthrough,dc-coupled.Re- flection from samplerisapprox 10%,measured with 40-ps TDR system. Pulsesemittedfrom samplerinputare approx 10-mVamplitudeand

18、5-ns duration. TIME DIFFERENCE BETWEEN CHANNELS: 5ps. CONNECTING CABLE LENGTH:5ft. WEIGHT:net,41b(1;8 kg); shipping,9lb(4,1 kg). ACCESSORIES PROVIDED:two50-ohm loads (HPModelgOgAOption012). Model1430CGeneralInformation SECTION I GENERALINFORMATION 1-1.INTRODUCTION. 1-8.WARRANTY. 1-2.This manual prov

19、idesoperatingand service infor- mationfortheHewlett-Packard Model1430CSampler. The manualisdividedintoeightsections, each covering a specifictopicoraspectoftheinstrument.Theschematic islocatedattherearofthemanualandcanbeunfolded and used forreference whilereading anypartofthe manual. 1-3.This sectio

20、nofthemanualcontainsadescriptionof theModel1430C.Theinstrumentspecificationsare listedintable1-1.Table1-2 listsanddescribesthe abbreviations used inthismanual. Accessories available forthisinstrumentarelisted inthespecificationstable and described inthissection. 1-9.Theinstrumentiscertifiedandwarran

21、tedasstated ontheinsidefrontcoverofthismanual.A special warrantyclauseexistsregardingthesampling diodes. RefertoSectionIII,OperatingPrecautions,for this information. Thewarrantymaybevoidforin- strumentshaving amutilatedserial tag. 1-10.ACCESSORIES FURNISHED. 1-4.SincetheModel1430CSamplerisdesignedfo

22、ruse witheithertheHewlett-Packard Model1411ASampling VerticalAmplifierortheModel1811ASamplingTime Baseand Vertical Amplifier,theinformationinthismanual supplementsthatpresented intheModel 1411 AorModel 1811A manual.Itisrecommendedthattheoperating instructions (Section III)ofboththismanualandthe appr

23、opriatesampling vertical amplifier manual be read priortooperatingthesampling system. 1-5.DESCRIPTION. 1-11. Accessories providedwiththeModel1430Caretwo 50-ohm loads (HP Model909AOption012). 1-12.AVAILABLEACCESSORIES. 1-13. SignalsinexcessofthedynamicrangeoftheModel 1430C(1volt) may be observedifthe

24、signalisfirst attenuatedtothecorrectlevelbyuseof50-ohmcoaxial attenuators.TheHP Model8491A/Bfixed coaxialattenua- tormay beobtainedin several ranges (3,6,10,20dBor higher). Variableattenuatorsare also available. Refertoan HPcatalogorconsultanHP Sales/Service Office for infor- mationonattenuatorsorca

25、bleadaptors,etc,tomeetany requirements. Figure 1-2. InstrumentSerialNumber 1-14. INSTRUMENTANDMANUALIDENTI- FICATION. 1-15. This manual appliesdirectlytoModel1430Cin- strumentswitha serial prefixnumberas listedonthe manualtitlepage.Theserial prefixnumberisthefirst groupofdigits intheinstrumentserial

26、number(figure 1-2).Theinstrumentserialnumberisona tag locatedon thebottomoftheinstrument. 7000-A-22 NUMBER COMPLETESERIALNUMBER SERIALPREFIX 1-6.TheModel1430CSampler,matedwitheitherthe Model1411AorModel1811ASampling Vertical Ampli- fier,togethercomprisesa two-channel vertical sampling systemwithaban

27、dwidthof18 GHz and a risetimeof 20ps.TheModel1430Candsampling vertical amplifier combinationoffersnumerousadvantages overconvention- alsampling devices. By placingtheModel1430Crightat thetestpoint,losses caused bylongprobeleads are eliminated.Thesamplerisoffeedthroughdesign, allowing measurementtobe

28、madeusingthesystemundertestas a load ratherthanusing an artifical internaltermination. Time differencebetweenchannelsis5ps, makingthe system idealforphase shift measurements. 1-7.Thefeedthroughfeaturealsopermitsthesystemto beusedforTDRapplications.TDR(TimeDomain Reflectometry)isatechniqueusedtoanaly

29、zecomponents and identifydiscontinutiesthatmaybepresentinconnec- tors, adapters, striplines, cablesandotherdevices. When the systemisusedinconjunctionwith a 20-ps pulse generator,it becomes ahigh-resolutionTDRwithan incidentsteprisetimeof30ps. RefertoSectionIII formoreinformationaboutTDRandits appli

30、cations. 1-1 GeneralInformation 1-16. Checktheserial prefixnumberoftheinstrument.If theserial prefixnumberisdifferentfromthatlistedonthe titlepageofthismanual,refertoSectionVIIforinstruc- tionstoadaptthismanual forproperinstrumentcoverage. 1-17.Errorsinthemanualarelistedundererrataonan enclosed MANU

31、AL CHANGESsheet(ifany). Model1430C 1-18. INQUIRIES. 1-19. Referanyquestionsregardingthemanual,thechange sheet,ortheinstrumenttothenearestHPSales/Service Office.Alwaysidentifytheinstrumentbymodelnumber, completename,andcompleteserialnumberin all corre- spondence.Refertotheinside rear coverofthismanua

32、lfor a world-wide listingofHP Sales/Service Offices. Table1-2. Reference Designators andAbbreviations REFERENCEDESIGNATORS AassemblyEmisc.electricalpartPplugU integratedcircuit ATattenuator,Ffuse PSpowersupply(unrepairable) resistiveterminationFLfilter Q transistor V vacuumtube,neon Bmotor,fanHhardw

33、are Rresistor bulb,photocell,etc. BTbatteryJJackVRvoltageregulator CcapacitorKrelay RTthermistor (diode) CPcouplingLinductor Sswitch W cable CRdiodeLSspeaker Ttransformer X socket DLdelaylineMmeterTBterminalboard y crystal DSdevicesignaling(lamp)MPmechanicalpartTPtestpointZnetwork ABBREVIATIONS ampe

34、re(s) -9 rfi AFETfield-effectn nano(10)radiofrequency amplamplifier(s)transistor(s)ncnormallyclosedinterference assyassemblyno.normallyopenrmsrootmeansquare ampltdamplitude giga(109) npnnegative-positive-rwvreverseworking GnegativeVOltage bdboard(s)gnd ground(ed) nsnanosecond bpbandpassSCRsiliconcon

35、trolled H henry(ies)-12 rectifier -2pico(10) ccenti(10)hr hour(s) p secsecond(s) CcarbonHP Hewlett-Packard pcprinted(etched) stdstandard circuit(s) ccwcounterclockwiseHzhertz pkpeak coax.coaxialtrmrtrimmer coefcoefficientif. intermediatefreq. pnppositive-negative- positive-6 comcommonintiinternalplo

36、 partof umicro(10) CRTcathode-raytube kilo(103) p-p peak-to-peak useemicrosecond cwclockwisekprgm program -1 prv peakinverse Vvolts ddeci(10)Ib pounds) voltage(s) varvariable dBdecibelIpflow-passfilter(s) pspicosecond wiwith extexternalmmilli(10-) pwv peakworking wlowithout M mega(10) voltage wivwor

37、kinginverse Ffarad(s)msmillisecondrfradiofrequencyvoltage 3170 1-2 SECTIONII INSTALLATION Model1430C 2-1.INTRODUCTION. 2-2.Thissectioncontainsinstructionsforperformingan initialinspectionoftheModel1430C.Proceduresfor making a claimforwarrantyrepairsandforrepackingthe instrumentforshipmentarealsodesc

38、ribedinthissection. 2-3.INITIALINSPECTION. 2-4.Theinstrumentwasinspectedmechanicallyand electricallybeforeshipment.Uponreceipt,inspectitfor damagethatmayhaveoccurredintransit.Checkforbent orbrokenconnectors,anddentsorscratches. Ifdamage isfound,refertotheclaimsparagraphinthissection. Retainthepackin

39、gmaterialforpossiblefutureuse. 2-5.Checktheelectricalperformanceoftheinstrument immediatelyafterreceipt.RefertoSectionVfortheper- formancecheckprocedure.Theperformancecheckwill determinewhetherornottheinstrumentisoperating withinthespecificationslistedintable1-1.Initial per- formanceandaccuracyofthe

40、instrumentarecertifiedas statedontheinsidefrontcoverofthismanual.Ifthein- strumentdoesnotoperateas specified, refertotheclaims paragraphinthissection. 2-6.PREPARATION FOR USE. 2-7.Connecttheinterconnectingcable(suppledwiththe sampler)betweentheinterconnectingjackonthesampler andthefrontpanelintercon

41、nectingjackontheModel 1411Aor1811A.Thesamplerisnowreadyforuse. All necessaryoperatingvoltagesareprovidedbythesampling vertical amplifier. 2-8.CLAIMS. 2-9.Thewarrantystatementapplicabletothisinstrument isprovided insidethefrontcoverofthismanual. If physical damageisfoundoriftheoperationisnotas specif

42、ied Installation whentheinstrumentisfirstreceived,notifythecarrierand thenearestHewlett-PackardSales/ServiceOfficeimmedi- ately(see listinbackofmanualforaddresses).TheSales/ ServiceOfficewillarrangeforrepairorreplacementwith- outwaitingforsettlementoftheclaimwiththecarrier. 2-10. REPACKAGING FOR SHI

43、PMENT. 2-11. WhenshippinganinstrumenttoaHewlett-Packard Sales/Service Officeforserviceorrepair,attacha tag showingowner(with address),instrumentmodelnumber, full serialnumberoftheinstrumentanddescriptionofthe serviceorrepairrequired. 2-12. Usetheoriginalcartonandpackagingmaterialfor shipping. Iftheo

44、riginal materialisnotavailableorre- useable, usethefollowing: a. Adouble-walledcarton,refertotable2-1fortest strengthrequired. b. Heavypaperorsheetsofcardboardtoprotectall instrumentsurfaces;usea nonabrasive materialsuchas polyurethaneorcushionedpapersuch as Kimpakaround allprojectingparts. c.Atleas

45、t 4 inchesoftightly-packed,industry-approv- ed,shock-absorbingmaterialsuchasextra-frimpoly- urethanefoam. d.Heavy-dutyshippingtapeforsecuringoutsideofcar- ton. Table2-1. ShippingCartonTestStrength Gross Weight (lb)CartonTestStrength(Ib) upto10200 10to30275 30to120350 120to140500 140to160600 2-1 TIME

46、 BASETRIGGERING(BELOWtGHz) Operation - - SAMPLER INPUT-.J SIGNAL- TIME BASE TRIGGER 50OHM FEEDTHROUGH T ERMINATION INPUT SIGNAL Model 1430C I TIMEBASE TRIGGE R J WERJ DIVIDER SAMPLER- _.rf:P-2-50OHM TERMINATION 1430c-e-1 Figure3-1.TimeBaseTriggering SIGNALSABOVEtGHz E:J TIME BASE TRIGG ER :J SAMPLER

47、 INPUTr 1I04A SIGNAL LOWPASS 1I06B FILTER (OPTIONAL) 1430C-A-I Figure3-2.TriggeringWithCountdownDevice 1430C #2 #1 LOW FREQUENCY PICK-OFF -+-+-_.-+-+-_-+-H-#2 1430C8- 2 3-0 Figure3-3.Using1430CWithHFCWSignal SECTIONIII OPERATION Model 1430C 3-1.INTRODUCTION. 3-2.Thissectionincludesoperatingconsiderations andsomegeneraloperatinginstructions,supplement- ingtheinformationprovidedineithertheModel 1411AorModel 1811ASamplingVerticalAmplifier manuals.Refertotheappropriatesamplingv