HP-608E-608F-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: Peter Reilley, KA1LAT RadioFans.CN 收音机爱 好者资料库 . . 60BE/F VHFSIGNAlGENERATOR HPPARTNUMBER00608-90046 rliHEWLETT PACKARD l RadioFans.CN 收音机爱 好者资料库 , ,-OPERATINGANDSERVI

2、CEMANUAL-, 608E/F VHFSIGNAlGENERATOR HPPARTNUMBER00608-90046 SERIALS PREFIXED: ThisOperatingandServicemanualapplies toHP 608E/Finstrumentswithserialnumbersprefixed 833-above02720(GOBE)and832- above 01500 (608F). SERIALPREFIXESNOTLIST!l: Forinstrumentswithlowerserialnumberprefixes aBackdatingAppendix

3、issuppliedintheback ofthismanual. Flio-HEWLETT r.IPACKARD CopyrightHEWLETT-PACKARD COMPANY 1965 1501PAGEMILLROAD, PALO ALTO, CALIFORNIA, U.S.A. OPERATING AND SERVICE MANUAL PARTNO.0060890046 Operating end Service Menual MIcrofiche Part No. 00608-90047Printed: APRIL1981 RadioFans.CN 收音机爱 好者资料库 Model6

4、08E/F TableofContents TABLEOFCONTENTS SectionPageSection Page IVPRINCIPLESOFOPERATION. VMAINTENANCE. 5-1.Introduction. 5-3.PeriodicInspection. 5-4.Cleaning. 5-6.Lubrication. 5-9.PerformanceTests. IIINSTALLATION. 2-1.IncomingInspection. 2-3.PreparationForUse. 2-4.PowerRequirements. 2-6.PowerCable. 2-

5、8.RepackingForShipment. IGENERALINFORMATION. 1-1.Description. 1-3.Frequency. 1-5.Modulation. 1-7.RFI. 1-9.AuxiliaryEquipment. 1-10.Model11509AFuseholder. 1-12.Model11508ATerminated OutputCable. 1-14.InstrumentIdentification. 5-15 5-15 5-29 5-30 5-32 5-32 5-14 5-26 5-26 5-16 5-12 5-12 5-13 5-13 5-18

6、5-11 5-17 5-17 5-18 5-12 5-10 5-10 5-23 5-23 5-23 5-25 5-25 5-16 5-1 5-8 5-9 5-9 5-8 5-8 5-8 5-1 5-5 5-5 5-5 5-7 5-7 Purpose. FrequencyAccuracyand ResettabilityTest. CalibratorAccuracyTest. FrequencyDriftTest. ResidualFMTest. IncidentalFMTest. MaximumRFOutputTest. FrequencyResponseand LevelingTest.

7、RFOutputAccuracyTest. UncalibratedRFOutputTest. ExternalSine-WaveModulation andModulationMeterTest. InternalModulationTest. EnvelopeDistortionTest. ExternalPulseModulationand ReSidualLevelTest. RFLeakageTest. FrequencyControlInputTest (Model608FOnly). FrequencyAnalogOutputTest (Model608FOnly). Synch

8、ronizationTestwith Model 8708ASynchronizer (Model 608F). Adjustment. PowerSupplyVoltageAdjustments ModulationMeterAdjustment. CalibrationofPercent ModulationMeter. AutomaticOutputLeveling Adjustment. RFOscillatorAdjustment. UncalibratedRFOutput,Minimum RFOutput, andRFAmplifier TrackingAdjustment. RF

9、OutputMeterAccuracy Adjustment. RFOutputMeter/AUenuator FrequencyResponseandAuto- matic-LevelingOutput Adjustment. CrystalCalibratorAdjustment. Troubleshooting. IsolatingaTroubletoa CircuitSection. IsolatingTroubleinTransistor Circuits. ReplacementandRepair. EtchedCircuitBoardRepair. ComponentReplac

10、ement. EtchedConductorRepair. TransistorandSemiconductor DiodeReplacement. ReplacementofElectron Tubes. AttenuatorProbeRepair andReplacement. Replacementin Housing. ReplacementofLampDSI. LocationofParts. 5-47. 5-48. 5-50. 5-59. 5-62. 5-63. 5-64. 5-66. 5-46. 5-67. 5-54. 5-74. 5-82. 5-83. 5-85. 5-42.

11、5-43. 5-25. 5-26. 5-29. 5-31. 5-34. 5-37. 5-10. 5-12. 5-13. 5-14. 5-15. 5-16. 5-17. 5-18. 5-19. 5-20. 5-21. 5-41. 5-27. 5-28. 5-22. 5-23. 5-24. 4-4 4-5 4-7 4-7 4-7 4-8 5-1 5-1 5-1 5-1 5-1 5-1 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-4 3-4 3-5 3-5 4-1 4-3 2-1 2-1 2-1 2-1 2-1 2-1 4-1 4-1 4-1 4-1 4-1 4-2 4-3 4-3

12、4-3 4-3 1-1 1-1 1-1 1-1 1-1 1-1 1-1 1-1 1-1 Introduction. GeneralDescription. RFGeneratorSection, Mode1608E. RFGeneratorSection, Model608F. AmplitudeModulationSection. AttenuatorSection. CalibratorSection. ModulationMeterSection. PowerSupplySection. DetailedDescription. RFGeneratorSection, Model608E

13、. RFGeneratorSection, Model608F. AmplitudeModulationSection AttenuatorSection. CalibrationSection. ModulationMeterSection. PowerSupplySection. 4-33. 4-9. 4-15. 4-17. 4-19. 4-21. 4-23. 4-25. 4-37. 4-51. 4-55. 4-59. 4-63. 4-1. 4-3. 4-5. 4-7. IIIOPERATION. 3-1.Introduction. 3-3.Controls,IndicatorsandCo

14、nnectors 3-5.Pre-OperationalProcedures. 3-7.RFOutputLoading. 3-9.Turn-OnProcedures. 3-11.CalibrationProcedures. 3-16.ModeOperatingProcedures. 3-18.InternalModulation. . . 3-20.ExternalModulation. 3-22.Phase-LockOperationProcedures (Model608FOnly). iii TableofContents Listoflllustrations TABLEOFCONTE

15、NTS(Cont.) Model608E/F SectionPageSectionPage VIREPLACEABLEPARTS.6-1 6-1.Introduction.6-1 6.3.ReplaceablePartsList. . 6-1 6-6.OrderingInformation. 6-1 6-9.FactorySelectedParts(*). .6-1 vnSCHEMATIC DIAGRAMS COMPONENT LQCATION INFORMATION7-1 7-1.Introduction.7-1 APPENDIX1. . . . . . . . . . . . . . .

16、. . . . .11 APPENDIXIT. . . . . . .IT-I LISTOFILLUSTRATIONS NumberNumber 1-1. 3-3. 3-4. 4-1. 5-1. 5-2, 5-3. 5-4. 5-5. 5-6. 5-7. 5-8. 59. 5-10. 5-11. 5-12. 5-13. 5-14. 5-15. 5-16. 5-17. Iv Title Model608Eand608FVHFSignal Generators. FrontPanelControls,Indicators, andCormectors. Controls,Indicatorsand

17、Connectors UsedinOperationwithInternally GeneratedSignals. Controls,IndicatorsandConnectors UsedInOperationwithExternally SuppliedSignals. Controls.Indicators,.:.!:.1:=3 UsedinPhase-LockOperation (Model608FOnly). OverallBlockDiagram,Models 608Eand608F. FabricatedTestEqUipment. LubricationPOints,RF1m

18、erDrive Mechanism. FrequencyAccuracyandResettability TestSetup. ResidualandinCidentalFMTestSetup. RFOutpJ.tTestSetup. UncalibratedRFOutputTestSetup. ExternalSine-WaveModulationand ModulationMeterTestSetup. EnvelopeDistortionTestSetup. PulseModulationTestSetup. RFLeakageTestSetup. FrequencyControlInp

19、utTestSetup. SynchronizationTestSetup. LocationPowerSupplyand ModulationMeterAdjustments. ModulationMeterCalibrationTest Setup. Patternon140Oscilloscopeat50% modulation. LocationofLevelingandRFOutput MeterAdjustment. LocationofRFOscillatorAdjustment Page 1-0 3-2 3-6 3-8 3-10 4-0 5-3 5-4 5-5 5-6 5-7

20、5-8 5- 5-10 5-10 5-11 5-11 5-12 5-13 5-14 5-14 5-15 5-16 5-18. 5-19. 520. 5-21. 5_22. 523. 5-24. 5-25. 5-26. 5_27. 5-28. 5_29. 5-30. 5_31. 5-32. 533. 7-1. 7-2. 7-3. 7-4. 7-5. TtUe Frequency-ResponseAdjustments. LocationofFrequency-Responseand Crystal-CalibratorAdjustments. VoltageandResistanceMeasur

21、e INT 1000 -Operation. ALCBoardVoltageandResistance Measurements,CWandPULSE SETRFOUTPUTOperation. TransistorBiasingandOperating Characteristics. LocationofElectronTubes. ReplacementofOscillatorand AmplifierTubes. DisassemblyofAttenuatorDrive Cable.,. AttenuatorProbe,ShOWingPickup LoopandImpedanceMat

22、chingNetwork RFGeneratorAssemblyLocationof UnlabeledParts(SideCoverRemoved) Model608ERFGeneratorAssembly ShoWingLocationofUnlabeledParts (TopCoverRemoved). Model608FRFGeneratorAssembly ShOWingLocationofUnlabeledParts (TopCoverRemoved). RightSideView ShowingLocationof UnlabeledChassisComponents. Left

23、SideView ShowingLocationof UnlabeledComponents. RearView ShowingLocationof UnlabeledChassisComponents. CircuitBoardPartsIdentification. SchematicWormationlllustration_ SchematicDiagramNotes. ComponentIdentification,Modulator andALCBoard. RFGeneratorandModulator SchematicDiagram. ModulationMeter,Crys

24、talCalibration, andPowerSupplySchematicDiagram. Page 5-18 5-18 5-19 5-22 5-24 5-28 5_29 5-30 5-31 5-32 5-33 5-34 5-35 5-36 5-37 5-38 7-1 7-2 7-3 7-3 7-5 ) , ) Model 608EIF Number I-I. 5-1. 5-2. 5-3. 5-4. 5-5. 5-6. 5-7. 6-1. 6-2. 6-3. 6-4. LISTOFTABLES Title Specifications. TestEquipment Required for

25、 Maintenance. Lubrication Chart. Out-of-CircuitTransistorResistance Measurement. Safe Ohmmeter Ranges forTransistor ResistanceMeasurement. EtchedCircuitSoldering Equipment. Checks Following Tube and Semiconductor Replacement. 608E/FTroubleshooting Procedure. Reference Designations. Abbreviations. Re

26、placeableParts. CodeListof Manufacturers. Page 1-2 5-2 5-4 5-25 5-25 5-26 5-27 5-40 6-2 6-2 6-4 6-12 List ofTables v - -c:JP Section I oG eA - -f!l- o-o Model608EIF e - - . I Model608E e .1iJ1iia. V Model608F ) ./ 1-0 Figure1-1.Model 60SEand608FVHFSignal Generators Model608E/F SECTIONI GENERALINFORM

27、ATION SedionI , 11.DESCRIPTION. 1-2.TheHewlett-PackardModel608Eand608F SignalGenerators(seeFigure1-1)aredesignedto meettherequirementsofprecisionlaboratorywork, andyettobeequallyusefulforgeneralapplicationsin theVHFfrequencyrange.TheModel 608Efurnishes RFsignalsfromO.1microvoltto1 voltfrom10MHz to48

28、0 MHz,whiletheModel608FsuppliesRFsignals fromO.1microvolttoO.5voltinafrequencyrange from10MHzto455MHz.TheRFcarriercanbe amplitudemodulated byinternallygeneratedsine- wavesignals,orbyexternallysuppliedsine-waveor pulsesignals.TheMooel 608Fcontainsfrequency controlcircuitrywhichpermitstheinstrumenttob

29、e usedinphase-lockoperationwiththeModel 8708A Synchronizer.Thisprovisionprovidesastabilized outputacrossmostoftherangeoftheinstrument, withadriftfactorof2 x10-1per10minutes.The instrumentscanbeusedfortroubleshooting,testing, calibrating,measuringstanding-waveratios,and checking antenna andtransmissi

30、onlinecharacteris- tics.Topreserveaccuracy,equipmentdesignholds spuriousmodulationto a low valueunderalloperating conditions.Detailedspecificationsfor bothinstru- mentsarelistedinTable1-1. 1-3.FREQUENCY. 1-4.Thefrequency ofthec.1tpu!signalisindicatedon adirectreadingdial,thecalibrationofwhichisaccur

31、ate tobetterthanO.5%forthe608Eandl%forthe608F, whenthecursorandFINEFREQareproperlyaligned. Calibrationaccuracymaybeimprovedfurtherbyuseof a built-in crystal-controlledheterodynecalibratorwhich furnishes1MHzcheckpointsfrom 10MHzto270MHz,or 5MHzcheckpointsovertheentirefrequencyrangeofthe instrument.At

32、anycheckpointthecalibrationcanbeset veryelO8etothecalibratoraccuracyof0.01%,bringing overallaccuracytoatleastO.O5%.Flequency check pointsignal.eareobtainedwhenaheadphoneset(not fumi.ehed)ispluggedintotheXTALCAL OUTPUT jack. Thecontrolfortheoutputattenuatoriscalibratedinboth decibelsandvolts. Whenthe

33、instrumentisconnectedtoa 5Q.ohm resistiveloadandpowerintotheoutputattenua torisexactlyattheATIENUATOR CALIBRATEDmark (+7 dB)ontheRF OUTPUT meter,thelevelofpoweror voltageappliedtotheRFOUTPUTconnectormayberead directlyontheA1TENUATORdialwithanaccuracyof 1 dB. Whenconnectedtoa 5O-ohmresistiveload,the

34、VSWRattheRF OUTPUTconnectorwillnolbegreater than1.2(SWRof1.6dB).Thesignalgeneratorsfeature automaticoutputleveling,maintainingtheRFoutput within1dBoftheadjustedoutput. 1-5.MODULATION. 1-6.TheRFoutputsignalcanbeamplitudemodulated byinternallygenerated400orlOOO-cydesinewaves, externallyappliedsinewave

35、sabove1.0 voltrmsover thefrequencyrangefrom20Hz lo 20 kHz,orexter- nallyappliedpulsesof10voltspeak-lo-peak.When pulsemodulated,thesignalgeneratorsarecapableof producingpulsesofRFenergyasshortas4micro- secondsatSignalfrequenciesabove40MHz,andpulses asshortas2microsecondabove 220MHz.Thedegree ofsine-w

36、avemodulationiscontinuouslyvariablefrom oto90%by afront-panelcontrol.Allsine-wavemodu- lationoftheoutputsignaliscontinuouslymonitored andindicatedinpercentageon adirectreadingmodu- lationmeter. 1-7.RFI. 1-8.RFleakageisheld to aminimumandissuch thatwhentheoutputsignalisadjustedforO.1micro- volt,theco

37、nductedsignalleakageatanyotherfront panelconnectorandtheradiatedleakagetwoinches fromtheinstrumentareeachlessthan1.0microvolt. 19.AUXILIARYEQUIPMENT. 1-10.MODEL 11509A FUSEHOLDER. 1-11.Toprotecttheoutputattenuatorfromdamage, forsomeapplications(suchastransceivertesting)it isdesirabletoinserta fuse b

38、etweenthesignalgen- eratorsandexternalequipment.The 11509Aisa specialcoaxialfuseholderwhichhousesa type 8AG, 1/16ampfuse whichprotectsthe outputattenuator fromdamageintheeventthatanexternalvoltageis accidentlyappliedtotheRFOUTPUTconnector.The fuseholderhasaninsertionlossofO.50dBat200MHz, O.56dBat300

39、MHz,and0.65dBat400MHz;tis SWRisnotgreaterthan1.35 when connectedtoa 50- ohmresistiveload. 1-12.MODEL 1150BA TERMINATED OUTPUT CABLE. 1-13.Thiscableassemblyprovidesa SO-ohmter- minationandstandardbindingpostsattheendofa24- inch length ofcable.The 11508A allowsdirectcon- nectionoftheinstrumentsto ahig

40、h-impedancecircuit. 114.INSTRUMENTIDENTIFICATION. 1-15.Hewlett-Packard1nstrumentscarryatwo-sec- tion,eight-digitserialnumber.Thefirstthreedigits areaprefix.Thecontentsofthismanual applyto thoseinstrumentshavingtheserialnumberprefix shown onthetitlepage.Iftheserialprefixonyour instrument1s not mentio

41、ned onthetitlepage, inthe Appendixtothismanual,orina Manual Change Sheet enclosedwiththemanual,thecorredinformationmay beobtainedfromanyHewlett-PackardSalesandSer- viceOffice(seerearof manual foraddresses). 1-1 SectionI Model608E/F Table1-1.Specifications FREQUENCY CHARACTERISTICS 608E Accuracy:With

42、in1dB ofattenuatordialreading atanyfrequencywhenRFoutputmeterindicates ATTENUATORCALIBRATED. input.Avoltagechangefrom-2voltsto-32volts willchange theoutputfrequencymorethan0.2% atthelowendofeachbandandmorethan1%at thehighendofeachband.Nominal4Kninput impedance,directcoupled.Voltagelimits: OV.:applie

43、dvoltage.:-50V. OUTPUTCHARACTERISTICS 608E608F OutputLevel:Continu- ouslyadjustablefrom 0.1trVtoO.5Vintoa 50nload.Outputat- tenuatorcalibratedin VanddBm(0dBm= 1 mWin50n). OutputLevel;Continu- ouslyadjustablefrom 0.1/lVtoIVintoa 50nload.Outputat- tenuatorcalibratedin VanddBm(0 dBm= 1mW in SOn). 608F

44、Range:10to 455 MHz in fivebands(10-21,21- 44,44-95,95-210,and 210-455MHz).10- 430 MHz whenused with 8708ASynchro- nizer. Accuracy:1%withcur- soradjustment. Drift:Lessthan50parts in 106per10min.pe- riodafterIhr.warm- up.Stabilityusedwith 8708ASynchronizer. 5x10-a/min. 2x10-7/min. Range:10to480 MHzin

45、fivebands(10-21,21- 43,43-95,95-215,and 215-480 MHz). Accuracy:O.5%withcur- soradjustment. Drift:Lessthan50parts in106per10min. periodafter1hr. warmup. (0-55C) -7% 2x10/10line voltagechange. TuningControl:Frequencycontrolmechanism providesaIna i ndialcalibratedinMHzanda vernierdialforinterpolationpu

46、rposes.Total scalelengthapproximately45inches.Calibra- tion:everyotherMHzfrom13Uto27UMHz; every5 MHzabove270 MHz. Leveling:InternalfeedbackcircuitretainsAT- TENUATOR CALIBRATEDreferenceonRF outputmeteroverwidefrequencyranges(typi- callyoctavebands).Adjustmentoffrontpanel AMP.TRIMMERcontrol(only)form

47、aximum RFoutputindicationautomaticallyrestoresini- tialcarr.ierlevelforgreaterfrequencychanges. Impedance:50n;reflectioncoefficient0.091 (1. 2 SWR,20.8dBreturnloss)forattenuator settingbelow-7dBm. ) Resettability:Mainfrequencycontrolresettability betterthanG.1%afterinitialwarmup.FINE FREQUENCY ADJUST prOVidesapproximately 25 kHzsettabilityat480 MHz(proportionately fineradjustmentatlowerfrequencies). RFI:MeetsallconditionsspecifiedinMlL-I- 618m;permItsreceiversensitiVitymeasure- mentsdowntoatleast0.1/lV. Auxil