HP-184A-B-Manual-SNP-1316A 电路图.pdf

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1、OPERATINGANDSERVICEMANUAL MODEL184A/B OSCILLOSCOPE SERIALSPREFIXED:1316A INCLUDINGOPTIONS:005 MANUALPIN 00184-90902 PRINTED JULY.1973 Refer toSectionVIIforserialsprefixed: 1228A, 1242A, 1247A,1301A, l304A IMPORTANTNOTICE Occasionally, portions ofthismanualwill be revised due toengineeringchanges,spe

2、ci- ficationchanges,ortocorrecterrorsin the manual.Thesechangeswill beprintedon replacementpagesandwill be includedwith thismanual.Aserialsprefixednumberor revision letter will beprintedatthe bottom of eachreplacementpagethathasbeen changed.Theserials prefixednumberon the bottom ofthereplacementpage

3、will indi- catethatanengineeringchangehasbeen incorporatedonthatpageforinstruments havingthatparticularserials prefixed num- ber. A revision letter on the bottomofany page indicatesthaterratacorrectionshave been incorporatedthatapplytoall instru- ments. REPLACEALLAPPUCABLEPAGESIN THISMANUALWITHTHEAP

4、PROPRIATE REPLACEMENTPAGES. HEWLETT-PACKARDCOMPANY/COLORADOSPRINGSDIVISION 1900GARDENOFTHEGODSROAD.COLORADOSPRINGS.COLORADO.U.S.A. MicrofichePIN00184-90802 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 CERTIFICATION TheHewlett-PackardCompanycertifies thatthisinstrumentwas thoroughlytestedandinspec

5、tedandfoundtomeet itspublished specificationswhenitwasshippedfromthefactory.TheHewlett- PackardCompanyfurther certifies that itscalibrationmeasure- mentsaretraceabletotheU.S.NationalBureauof Standardsto theextentallowedbytheBureauscalibrationfacility. WARRANTYANDASSISTANCE ThisHewlett-Packardproduct

6、iswarrantedagainstdefects inmaterialsandworkmanship.Thiswarrantyappliesfor oneyearfromthedateofdelivery,or,inthecaseofcertain majorcomponentslistedintheoperatingmanual,forthe specifiedperiod.Wewillrepairorreplaceproductswhich proveto be defectiveduringthewarrantyperiodprovided theyarereturnedtoHewle

7、tt-Packard.Nootherwarranty isexpressedorimplied.Wearenotliableforconsequential damages. Servicecontractsorcustomerassistanceagreementsare availableforHewlett-Packardproductsthatrequiremain- tenanceandrepairon-site. Foranyassistance,contactyournearestHewlett-Packard SalesandServiceOffice.Addressesare

8、providedatthe back ofthismanual. RadioFans.CN 收音机爱 好者资料库 Model 184A/B TABLE OFCONTENTS TableofContents SectionPageSectionPage IGENERALINFORMATIO1-1 1-1.Introduction1-1 1-4.InstrumentDescription1-1 1-24.Cathode-rayTube1-2 1-27.Warranty1-2 1-30.InstrumentIdentification1-2 1-32.ManualIdentificationand

9、Changes1-2 1-36.AccessoriesFurnished1-4 1-41.Available Accessories1-4 1-42.MobileTestStands1-4 1-47.Covers1-4 1-50.Cameras1-4 I-54.ServiceEquipment1-5 1-58.Blank Plug-ins1-5 1-60.OtherAccessories1-5 3-52. 3-54. 3-56. 3-59. 3-61. 3-64. 3-66. 3-68. 3-70. 3-72. 3-74. 3-78. 3-80. 3-83. 3-89. HorizontalE

10、xternalCoupling3-4 ExternalSensitivity3-4 Horizontal Magnifier3-5 RearPanelControlsand Connectors3-5 Outputs_3-5 AC LineInput3-5 Phase/BandwidthSwitch .3-5 Z-axisInput3-5 STD WRITESPDandVAR .3-5 OperatingTips3-6 Single-shot Operation3-6 Magnetic Interference3-7 Plug-inUnits3-7 PhaseMeasurement3-7 Gr

11、aticuleMarksand Measurements3-8 IIINSTALLATIO2-1IVPRINCIPLESOFOPERATIO4-1 PERFORMANCECHECKAND ADJUSTMENTS5-1 5-1.Introduction,5-1 5-3.TestEquipment5-1 5-5.Performance Check5-1 5-9.PreliminarySetup5-1 5-10.CalibratorCheck5-1 5-11.Horizontal Magnifier Check5-2 5-12.HorizontalBandwidthCheck5-2 5-13.Bea

12、mFinderCheck5-3 5-14.PersistenceandStore Time Check5-3 5-15.Write-in-store Check5-4 5-16.AdjustmentProcedure5-7 5-21.Cover Removal5-7 5-24.PreliminarySetup5-7 5-25.Low Voltage Power Supply Adjustment5-7 5-26.High Voltage Power Supply Adjustment5-8 ) III 2-1.Introduction2-1 2-3.InitialInspection2-1 2

13、-8.Claims2-1 2-11.Repacking forShipment2-1 2-15.PreparationforUse2-2 2-16.Power Requirements2-2 2-20.Three-conductor Power Cable2-2 2-23.InstrumentMounting2-2 2-28.InstrumentCooling2-3 2-31.ContrastFilter2-3 2-36.InstrumentCompatibiltiy2-3 OPERATION3-1 3-1.Introduction3-1 3-3.General Description3-1

14、3-5.Definitions_3-1 3-7.OperatingConsiderations3-2 3-10.Display Selection3-2 3-13.Conventional Operation3-2 3-15.Single-shotStorage Operation3-2 3-19.FrontPanelControlsand Connectors3-2 3-21.FocusandAstigmatism3-3 3-23.PersistenceandIntensity3-3 3-26.Store3-3 3-31.ConventionalOperation3-3 3-33.Stand

15、ardStorageMode3-3 3-35.FastWriteStorageMode3-3 3-37.Erase3-4 3-39.StoreTime3-4 3-41.Calibrator3-4 3-43.Trace Align3-4 3-45.FindBeam3-4 3-48.Line Power Switch3-4 3-50.HorizontalDisplay3-4 V 4-1. 4-3. 4-22. 4-27. 4-32. 4-35. 4-44. 4-45. 4-48. 4-65. 4-81. 4-90. 4-101. 4-103. 4-107. 4-125. Introduction4

16、-1 StoragePrinciples4-1 Conventional4-3 General Description4-5 Input Power4-5 Horizontal Deflection4-5 Circuit Details4-6 InputPower4-6 Low Voltage Power Supply4-6 High Voltage Power Supply4-8 Gate Amplifier4-9 Pulse Circuit4-10 Calibrator.4-11 TraceAlignment.4-11 Horizontal Amplifier4-12 SweepGateO

17、utput Amplifiers4-13 III TableofContents List of IllutrationsTABLE OFCONTENTS(Contd) Modell4A/B Section Page Section Page VI 5-27.AstigmatismAdjustment5-9 5-28.IntensityLimitAdjustment5-9 5-29.TraceAlignmentAdjustment5-9 5-30.GateAmplifier Respon e Adjustment5-10 5-31.FastVerticalGainAdjustment5-10

18、5-32.HorizontalGainAdjustment5-10 5-33.HorizontalGainAdjustment (AlternateProcedure)5-11 5-34.DBalanceAdjustment5-12 5-35.VernierBalanceAdjustment5-12 5-36.Write-in-storeAdjustment5-12 5-37.PhaseAdjustment_5-13 5-3.TransientResponse Adjustment5-13 5-39.HorizontalLinearity Adjustment5-14 5-40.Collima

19、tion and WritingRate Adjustment-14 REPLACEABLEPARTS6-1 6-1.Introduction6-1 6-3.OrderingInformation6-1 VIIISCHEMATICAD TROUBLESHOOTIG8-1 -1.Introduction8-1 -3.chematics-1 8-7.ReferenceDesignations-1 -11.ComponentLocation-1 -14.Troubleshooting. . . . . . . . . . . . . . .-1 -19.PreliminaryCheckout8-2

20、-21.DetailedCheckout. . . . . . . .-2 8-23.DCVoltages8-2 8-25.Waveforms-2 8-27.TestPoints-2 -29.PolarizedComponents-2 8-31.TroubleshootingTables8-2 8-33.RepairandReplacement8-2 8-35.ervicingEtchedCircuit Boards8-2 8-37.emiconductorReplacement8-3 8-40.DetailedTroubleshooting8-4 8-42.Low Voltage Power

21、Supply8-4 8-47.High VoltagePowerSupplyand Regulator8-4 VIIMAALCHANGEAD OPTIONS7-1 7-1.Introduction7-1 7-3.ManualChanges7-1 7-5.SpecialOptions7-2 7-9.StandardOptions7-2 -52. -55. -59. -62. -65. DisassemblyInformation8-4 Cover Removal8-4 Power Module Removal8-5 CRT Removaland Replacement. . . . . . .

22、. . . . .-6 HighVoltageSupply Replacement8-6 LIST OF ILLUSTRATIONS FigureTitle PageFigureTitle Page 1-1. 1-2. 1-3. 2-1. 2-2. 3-1. 3-2. 3-3. 3-4. 4-1. 4-2. 4-3. 4-4. 4-5. 4-6. IV Modell4Aand1 4B Oscilloscopes1-0 IntrumentSerialumber1-2 Model 184Aand184B Dimensions1-6 CRThippingContainer2-1 RackMounti

23、ngProcedure2-3 OperatingControlsand Connectors3-0 Iade PositiveandBackground Illumination3-5 PhaseMeasurement3-8 GraticuleMarking3-8 implified CRTConstruction4-1 econdaryEmissionRatio4-1 torageMeshandurfacePotentials DuringErasure4-2 VariablePersistenceStorage4-3 Simplified BlockDiagram44 Simplified

24、 Low VoltagePower Supply4-6 4-7. 4-. 5-1. 5-2. 5-3. 5-4. 5-5. 56. 5-7. 5-8. 5-9. 5-10. 5-11. 5-12. 5-13. 5-14. GateAmplifier BlockDiagram4-10 Horizontal Amplifier Block Diagram4-12 CalibratorCheck5-1 Horizontal Magnifier Check5-2 HorizontalBandwidthCheck5-2 BrilliantSpotsin CRTDisplay. . . . . .5-3

25、Low VoltagePowerSupply Adjustments5-8 High VoltageAdjustment5-8 TraceAlignmentAdjustment5-9 GateAmplifier Response Adjutment5-10 Fat VerticalGainAdjustment5-10 CalibrationDisplay5-11 Write-in-storeAdjustment5-12 PhaseandCompensation Adjustment5-13 TransientResponseAdjustment5-14 HorizontalLinearity

26、Adjustment5-14 Modell4A1B LISTOF ILLUSTRATIONS (Contd) ListofIIlutrations ListofTables Figure TitlePageFigureTitlePage 5-15. 5-16. 6-1. 6-2. 6-3. 6-4. 7-1. 7-2. 8-1. 8-2. -3. -4. 8-5. 8-6. -7. 8-9. FastWriting RateAdjustment;)-15 AdjustmentLocations5-15 Modell4B MechanicalParts6-0 Modell4A1BParts Id

27、entification6-0 Low Voltage PowerSupplyModule Exploded View6-5 erieRegulatorParts Identification Change5 Effect on AemblyA7-3 Change5 Effect onSchematic6,7-4 SemiconductorTerminal Identification8-3 Cover Removal5 OverallTroubleshootingTree8-7 Low Voltage RectifierComponent Identification8-10 Low Vol

28、tage PowerConnections8-11 Low Voltage RegulatorComponent Identification8-12 LowVoltagePowerSupply chematic8-13 Horizontal Amplifieromponent Identification. . . . .14 DiplaySwitchComponent Identification8-15 -10. -11. 8-l2. 8-13. 8-14. -15. -16. 17. 8-18. -19. -20. -21. 22. -23. -24. 8-25. Horizontal

29、 Amplifier chematic15 GateAmplifierComponent Identification. . . . . . . . . . . . . . . . . . .16 GateAmplifierSchematic8-17 ModeSwitchComponent Identification_. .18 Mode Switchchematic.8-19 PulseCircuitomponent Identification. . . . . . . . . . . . . . .-21 Pul eCircuitchematic.21 H.V.OscillatorCo

30、mponent Identification8-22 H.V.MultiplierAssembly.22 H.V.RectifierComponent Identification8-23 High Voltage PowerSupply chematic8-23 SweepGateAmplifierComponent Identification8-24 SweepGateOutputAmplifier Schematic-2;)8-26 CalibratorComponent Identification. . . . . . . . . . . . . . . . .-27 Calibr

31、atorSchematic-27 TimeBase Plug-inConnections28 LISTOF TABLES ManualChanges.7-1 PowerupplyCurrentCapability4-8 ShippingCartonTesttrength2-2 AvailablePlugins3-7 PageTitle Low Voltage PowerSupply Troubleshooting Tips8-13 Low Voltage PowerSupplyVoltage MeasurementConditions8-13 Horiontal Amplifier Volta

32、ge MeaurementConditions8-15 GateAmplifier VoltageMeasurement Conditions8-17 StandardMode Troubleshooting Measurements8-18 StandardMode Waveforms8-18 Conventional Mode Troubleshooting Meaurements8-18 FastModeTroubleshooting Measurements8-18 StoreModeTroubleshooting MeasurementsandWaveforms.8-19 Stand

33、ard!tore ModeTroubleshooting Measurements. . . . . . . . . . . . . . . .-20 Fast!tore Mode Trouble hooting Measurements8-20 High Voltage PowerSupply TroubleshootingTips23 CRTIntensityTroubleshooting Tips8-25! 26 -5. 14. 8-3. 8-4. 8-6. 8-. -9. 8-7. Table 8-10. 8-11. 8-13. 8-12. 8-15. PageTitle Recomm

34、endedTestEquipment5-0 Performanceheck Record5-6a!5-6b Model 184A1Bpecifications1-3 ReferenceDesignatorand Abbreviations1-5 Abbreviations for Replaceable PartsList6-1 ReplaceableParts6-2 ListofManufacturersCodes6-16 Schematicote8-8 MiscellaneousTroubleshooting Tips8-9 Table 1-1. 1-2. 2-1. 3-1. 4-1. 5

35、-1. 6-1. 6-2. 6-3. 7-1. ) 8-1. -2. v GeneralInformation Figure1-1.Model184Aand184B Oscilloscopes 1-0 Model 184A/B 84A/8-R -to Model184A1B SECTIONI GENERALINFORMATION GeneralInformation ) 1-1.INTRODUCTION. 12.Thismanualprovidesoperatingandservice informationfor Hewlett-Packard Models 1 4Aand 184B Osc

36、illoscopes.Themanualis dividedinto eightsections,each covering aspecific topic or aspectoftheinstrument.Allschematicsarelocated attherearofthemanualandcanbeunfoldedand used for reference whilereadinganypartofthe manual. 1-3.Thissectioncontainscompleteinstrument specifications, a descriptionoffeature

37、s,warranty information,dataformanualandinstrument identification,andinformationregardingaccessories availablefor use withtheinstrument.Table1-2 listsanddescribes theabbreviationsused inthis manual. 1-4.INSTRUMENTDESCRIPTION. 1-5.TheModel184A1B(figure1-1)isa solid-state, lightweightlaboratoryandgener

38、al-purposevariable persistencestorageoscilloscopewithplug-in capa- bilities.Theinstrumentisdesignedtodisplay complexhighfrequencywaveformsandtomeasure alternatinganddirect-current voltages.Complete instrumentspecificationsaregivenintable1-1. 1-6.Theoscilloscopehasahighwritingspeed combinedwithabrigh

39、t,easilyviewed,CRT display.OperatingintheFASTmode,the instrumenthasawritingspeed of 100cm/usecor greater. Displaybrightnessis 50 footlambertsor moreatthisspeed.Thisprovides abrightvisual displayto simplify themeasurementoflowduty cyclesignals. 1-7.Thevariablepersistencecapabilityis especiallyusefulf

40、orviewing slow-speedsignals. Adjustmentofpersistencetimecanprovide viewing of a completetracewithfadingsufficient topreventinterferencewiththenexttrace.The displaypersistencecanreadilybeadjustedto eliminateflickerandstill providehighresolution. 1-8.ThestoragefeatureofModel184A1Bcanbe usedtostoresing

41、le-shotoccurrencesforlater viewing orphotographing.Comparisonofwave- formscanbeaccomplishedbystoringseveral separateoccurrencesandlaterviewingthem simultaneously. 1-9.Model 184A is acabinettypeinstrumentwith abuilt-intiltstand,convenientcarryinghandle on top,andfeetmountedon both bottomandrear forei

42、therbench oruprightoperation. 1-10.Model 184B is aracktypeinstrumentwith a built-in tiltstandandbottom-mounted feet.It maybe bench operated orrackmounted.Figure1-3 providethe outline dimensions. l-ll.Model184A1Bhassolid-statecircuitry throughoutforminimumsizeandweightwith maximumreliability.Powercon

43、sumption,with piug-ins, is lessthanll5wattsatnormalline voltage.Theinstrumentis convection cooledand designedtooperatewithinspecificationsat temperaturesbetween(JOCand55Cwithup to 95%relativehumidityat40C. 1-12.All power supplies, acalibrator,horizontal amplifier,gateamplifier,variablepersistence st

44、oragecircuitryandthe CRTarecontainedin theinstrument.Operationateitherll5Vor 230V acis selectablebyaswitchlocated on therear panel of the oscilloscope. 1-13.TheModel14A1Bis designed to operate with anumberofdifferentplug-inswithreal-time bandwidthsup to 100 MHzandsamplingband- widths upto1GHz.Presen

45、tlyavailableplug-ins provide awide choiceofoperatingcapabilities suchaswidebandwidth,dualorfourchannel operation,highsensitivity,differentialoffset, single or delayed sweeps,andsamplingor time- domainrelfectometer operation. 1-14.To facilitate servicing,themodularpower supplymaybe disconnectedandrem

46、oved from theinstrumentforaccessto allcomponents.It mayalso be operated from the built-inextender cable to simplifyandspeed upmaintenance. 1-15.Acalibratorprovides a square-wavesignal ofapproximately1 kHzwitha risetimeofless than3 usec.Thecalibratoroutputisavailableat thefrontpanelat10Vpopwithanaccu

47、racyof l%.Thesignalmaybeusedtocheckhorizontal andvertical deflection factorandtocompensate divider probes. 1-16.Theoscilloscopehorizontalamplifier accepts sweepsignalsfromthetimebaseplug-in oran GeneralInformation externalsource.Theexternalinputbandwidthis dc to 5 MHz, dc-coupled,and5 Hz to 5 MHz, a

48、c- coupled. 1-17.Threehorizontaldeflectionfactorranges arefrontpanelselectable: 1 V/div(Xl), 0.2 V/div (X5),and0.1V/div(XlO).Inaddition, avernier controlprovidescontinuousadjustmentbetween rangesforexternalinputs.Themaximumexternal inDut level is 600 Vdc, ac-coupled,withadynamic rangeof20V. 1-1.Amag

49、nifiedsweepaccuracyof5%is maintainedatselectablemagnificationsofX5and XlO;anda frontpanelBNCconnectorpermitsthe useofexternaldeflectionsignals.Theexternal inputhasaninputimpedanceof1megohmshunted byapproximately30pF. 1-19.Abeamfinderpushbuttoncontrolassists theoperatorinrapidlybringingadisplacedbeam on screen.Itsuse reduces verticalandhorizontal amplifiergaintoquickly locate trace position. 1-20.Externaloutputsareprovidedthroughfour rearpanelmounted BC connectors f