HP-739AR-Manual 电路图.pdf

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1、HP Archive This vintage Hewlett Packard document was preserved and distributed by Please visit usonthe web! Thanks to on-line curator: Kenneth Kuhn for supplying and scanning this vintage document. RadioFans.CN 收音机爱 好者资料库 HEWLETT-PACKARDCOMPANY l, 739AR FREQUENCY RESPONSETESTSET RadioFans.CN 收音机爱 好者

2、资料库 002032 OPERATINGANDSERVICEMANUAL MODEL739AR SERIALSPREFIXED:010- FREQUENCYRESPONSE TESTSET CopyrightHEWLETT-PACKARDCOMPANY1959 1501 PAGE Mll.L ROAD,PALOALTO, CALIFORNIA, U. S. A. Printed:NOY1961 RadioFans.CN 收音机爱 好者资料库 Section I Model739AR .,. OUTPUTFREQUENCYRESPONSE TEST SET . tW:WttTPACXAIlO -

3、.- OUTPUT ATTENUATOR YTVM. aoAL.l oQI. COl fREQTUNING AWPUTUDE POWER ONIAWP RANGESELECTOR 010. AA(QMC- 3113 INPUT Figure1.Model 739ARFrequencyResponseTestSet 1-0 00203-2 Model 739AR SECTIONI DESCRIPTION SectionI Thet5jJModel 739ARFrequencyResponseTestSet simplifiesfrequencyresponsedeterminationbypro

4、- vidingaconvenientconstantamplitudereference voltageofvariablefrequency.Frequencyresponse ofvacuumtubevoltmeters,oscilloscopes,videoam- plifiersandfiltersfrom5cpsto10mc(extended frequencyrangewhenusedwithtEjJModel 200SOscil- lator)canbequicklyandeasilychecked. TheFrequencyResponseTestSetcontainsawi

5、de rangeoscillator,specialvoltmeter,andstepattenu- atorasshowninfigure2.Theoscillatorgenerates constantamplitudesignalsbetween300kcand 10mc. Themonitoringcircuitisflatfrom5cpsto10mc sothatanexternaloscillatorsuchastEjJModel 200S canbeusedtoreducethelowerfrequencylimitto aslowas5cps.Oscillatoroutputi

6、sappliedtothe monitoringvoltmeter,whichsamplestheinputtoa stepattenuator.Anarbitraryreferencelevelis maintainedonthemonitoringmeterasthefrequency settingisvaried.Theattenuatorreducesthesignal toanappropriateoutputlevelwhichappearsacross 50ohmsattheendofthespecialoutputcablesupplied. INT.OSC.0-70db .

7、30-10MC ATTEN. 10dbSTEPS METER I. SET50 e: MONITOR :) IMETER EXT.INPUT 5cps-300KC RO Figure2. Model 739ARBlockDiagram Table1.Specifications FREQUENCY RANGE: 300kcto10mcin 3ranges. (5cyclesto10mcwith Model 200SROscillator) REQUIREMENTS FOREXTERNALOSCILLATOR: 3voltsinto50ohms,Scpsto300 kc,distortion l

8、essthan1% FREQUENCY RESPONSE OF MONITORINGCIR- CUIT:Flatwithin0.5%from10cpsto5mc; within +0.5%, -1.5%, 5cpsto 10mc.Monitor circuitisaveragereading. OUTPUT:Atleast3voltsacross50-ohmcable termination.Adjustablein10 dbstepsby a 0to 70 dbattenuator.Fineadjustrpentprovided. POWER:115or230volts10%,5to1000

9、cps, 30watts. WEIGHT:Net14lb,shipping28lb 00203-2 DIMENSIONS:RackMount Il!- j -.r-.,.=;-, -. REAR -1 f-1-=-=-_-_-19-_-_-_-_.J_.I1t 739AR64 ACCESSORIESFURNISHED:739A-16A 30 inch OutputCable,50-ohmtermination.BNCto shieldeddualbanana plug,(extracablesavailable onspecialorder). 1-1/1-2 Model739AR SECTI

10、ONII OPERATION SectionsI1and III Calibratethedeviceundertestwith anaccuratevolt- agestandard,suchasthefj;Model 738AVoltmeter Calibrator.Thisvoltagestandardshouldhavean outputfrequencybetween100 and 1000cps. a.ConnectthedeviceundertesttotheFrequency ResponseTestSetOUTPUTconnector,usingthespe- cialter

11、minatedoutputcableprovided. b.Connectasuitableoscillator,suchasthe 0 - J2 BNC !OUTPUTI OUTPUT ATTEN- UATOR C?,.w. -, REFERENCEDESIGNATORSUNASSIGNEO ON THISDRAWINGDESIGNATORS CITHRUC24 CRICR4 051 FI JI L1,L2 MI PI RITHRUR27 SIA8COE.S2 VITHRUV5 VRITHRUVR4 CI5 820 -250V r250V VOLTAGE REGULATOR CI4 820

12、VR4 OA2 VR2 OB2 VR3 .,OB2 VRl .,OA2 C5 .OIj.1F SIA 4 1I,(2 Figure3.Model 739ARFrequencyResponseTestSet COPYRIGHT19nIVHEWLm.PACKAltD COMPANV Thl, drawing I. Intended for the operation andIftOlnt.naRceofHI.odcotdeqUip menandI,nottob.v.ed oth.rwJ.or r.produced wlthoyt written con.ntofth. Hewlett.packor

13、d Company. T3U.:T-OIOB o ;0I,IJ0J f-CDr ,-.I ,I SWITCHPOSITONSOF QSIA,B,C.O.E(GANGED) I_i 1.IEXTERNALI 2.0:=:0 3. 4t:E:!J Ll 10PH u. I tv o o tv o u. I tv Model 739AR SECTIONIV REPLACEABLEPARTS SectionIV Thissectioncontainsiriformationfororderingre- placementpartsfortheModel739ARFrequencyRe- sponseT

14、estSet. Table2listsreplaceablepartsinalpha-numerical orderoftheirreferencedesignators.Detailedinfor- mation on apartusedmorethanonceintheinstru- mentislistedoppositethefirstreferencedesignator applyingtothepart.Otherreferencedesignators applyingtothesamepartrefertotheinitialdesig- nator.Miscellaneou

15、spartsareincludedattheend of thelist.Detailedinformationincludesthefollowing: a.Referencedesignator. b.Fulldescriptionofthepart. c.Manufacturerofthepartin afive-digitcode; seelistofmanufacturersinappendix. d.Hewlett-Packardstocknumber. e.Totalquantityusedintheinstrument(TQcol). f.Recommendedsparequa

16、ntityforcompletemain- tenanceduringoneyearofisolatedservice(RScol). Toorderareplacementpart,addressorderorinquiry eithertofyourauthorizedHewlett-Packardsalesrep- resentativeorto CUSTOMER SERVICE Hewlett-PackardCompany 395PageMillRoad PaloAlto,California or,inWesternEurope,to Hewlett-PackardS.A. Rued

17、u VieuxBillardNo.1 Geneva,Switzerland Specifythefollowinginformationforeachpart: a.Model andcompleteserialnumberofinstrument. b.Hewlett-Packardstocknumber. c.Circuitreferencedesignator. d.Description. Toorderapartnotlistedintable2,giveacomplete descriptionofthepartandincludeitsfunction and location.

18、 Table2.ReplaceableParts Ckt Ref. DescriptionMfrrEfJStockNo.TQRS ClCapacitor:variable,airdielectric,768540121-002611 2section,9.5-443.2pf C2Capacitor:variable,ceramic,729820130-000111 7-45pf,500 vdcw C3, 4Capacitor:variable,ceramic,1section729820130-000321 1.5-7pf, 500 vdcw C5Capacitor:fixed,ceramic

19、,715900150-0012103 .01J.Lf20%, 1000 vdcw C6Capacitor:fixed,ceramic960950150-000511 1000 pf25%, 500 vdcw C7SameasC5 C8Capacitor:fixed,mica,764330140-004111 100 pf5%, 500 vdcw C9thru SameasC5 Cll 00203-24-1 SectionIV Table2.ReplaceableParts(Continued) Model 739AR Ckt Ref.DescriptionMfr*&;Stock No.TQ*R

20、S* C12, 13,Capacitor:fixed,mica,764330140-001041 14,15820 pf10%, 500 vdcw C16Capacitor:variable,polystyrene729820132-000211 0.7-3pf,350 vdcw C17Capacitor:fixed,titaniumdioxide,821420150-002911 1 pf10%, 500 vdcw Optimumvalueselectedatfactory. Averagevalueshown. C18, 19SameasC5 C20, 21Capacitor:electr

21、olytic,2sections,562890180-001221 20/If/sect.,450 vdcw C22, 23, SameasC5 24 CRl,2Diode,germanium732931910-001122 CR3, 4Diode,silicon 732931901-002722 DSILamp,miniature:2pinbase,#12244552140-001211 FlFuse:1ampslowblow,for115V714002110-0007110 operation Fuse:1/2amp,slowblow,for230V714002110-000810 ope

22、ration JlConnector:partofExt.InputCable J2Connector:partof OutputCable Ll,2Inductor,RF;10J1.h10%998489140-003221 MlMeter650921120-009111 PICable,power709038120-001511 RlResistor:fixed,composition,011210690-330111 33ohms10%, 1W R2Resistor:fixed,composition,011210690-102111 1000ohms10%, 1W R3Resistor:

23、fixed,composition,011210687-102111 1000ohms10%,1/2W R4Resistor:fixed,composition,011210690-683111 68, 000ohms10%, 1W *Seeintroductiontothissection 4-200203-2 Mode1739AR Table2.ReplaceableParts(Continued) SectionIV Ckt Ref.DescriptionMfr* Stock No.TQ*RS* R5Resistor:fixed,c,Jmposition,011210687-1051 1

24、1 1megohm10%,1/2W R6Resistor:fixed,depositedcarbon,197010727-0249 21 667, 000ohms1%,1/2W R7Resistor:fixed,composition,01121 0687-474111 470,000ohms10%,1/2W R8Resistor:fixed,depositedcarban,197010727-02982 1 4megohms1%,1/2W R9Resistor:fixed,depositedcarbon,197010727-030021 5.55megohms1%,1/2W RIOResis

25、tor:fixed,composition,011210686-224511 220,000ohms5%,1/2W RllSameasR6 R12SameasR8 R13SameasR9 R14Resistor:fixed,depositedcarbon,197010727-024611 600,000ohms1%,1/2W R15Resistor:fixed,depositedcarbon,197010727-02871 1 2megohms1%,1/2W R16Resistor:variable,composition,112372100-00631 1 100,000ohms,linea

26、rtaper R17Resistor:fixed,composition,011210687-473111 47,000ohms10%,1/2W R18, 19Resistor:fixed,composition,011210687-105121 1megohm10%,1/2W R20, 21Resistor:fixed,depositedcarbon,197010727-013621 5030ohms1%,1/2W R22Resistor:variable,composition,715902100-001911 lineartaper,500ohms10% R23Resistor:fixe

27、d,depositedcarbon,197010727-006511 300ohms1%,1/2W Optimumvalueselectedatfactory. Averagevalueshown. R24,25Resistor:fixed,depositedcarbon,197010727-005521 201ohms1%,1/2W R26,27Resistor:fixed,composition,011210693-123121 12,000ohms10%, 2W SlSwitch,rotary:2sect.4pos768543100-008511 S2Switch, toggle:SPS

28、T,250V,3amp040093101-000111 *Seeintroductiontothissection . 00203-24-3 SectionN Table2.ReplaceableParts(Continued) Model739AR Ckt Ref.Description Mfr*Stock No.TQ*RS* SRIRectifier,metal776381883-000511 162 Vrmsmax,20rnadcmax TlTransformer,RF28480739A-60A11 T2Transformer,RF28480739A-60B11 T3Transforme

29、r,RF28480739A-60C11 T4Transformer,power987349100-002711 VITube,electron:6C4866841921-000511 V2Tube,electron:6AQ5822191923-001811 V3, 4Tube,electron:12AX7000011932-003022 V5Tube,electron:6X4331731930-001611 VRITube,electron:voltageregulator,OA2866841940-000422 VR2, 3Tube,electron: voltageregulator,OB

30、2866841940-000722 VR4SameasVRI MISCELLANEOUS Attenuatorassembly28480739A-3411 Cableassembly:Ext.Input28480739A-16B10 Cableassembly:Output28480739A-16A11 Fuseholder:extractorposttype759151400-008411 Knob:METERSET28480G-74C20 Knob:AMPLITUDE28480G-74F10 Knob: RANGESELECTOR,28480G-74N20 OUTPUTATTENUATOR

31、 *Seeintroductiontothissection 4-400203-2 Model739ARAppendix APPENDIX CODELISTOF MANUFACTURERS (Sheet 1of2) The followingcodenumbersarefromtheFederal SupplyCodefor ManufacturersCatalogingHandbooksH4-(NametoCode) and H4-2(CodetoName)andtheirlatestsupplements. Thedateof revision andthedateofthesupplem

32、ents usedappearat thebottomofeachpage.Alphabeticalcodeshavebeenarbitrarily assignedtosuppliers notappearingintheH4handbooks. CODE NO.MANUFACTURERADDRESS CODE NO.MANUFACTURERADDRESS CODE NO.MANUFACTURERADDRESS o7 1 1 5CorningGlassWorks ElectronicComponentsDept. Bradford,Pa. Fullerton,Calif. and Phila

33、delphia,Pa. Waltham,Mass. Selma,N.C. Chicago,III. Elmsford, N.Y. So.Norwalk,Conn. Inc.Tonawanda,N.Y. NorthAdams,Mass. St.Paul, Minn. BrakeCo. Pittsburgh,Pa. UniversalElectricCo.Owosso,Mich. WesternElectricCo.,Inc.New York, N.Y. WestonInst. Div.ofDaystrom,Inc. Newark,N.J. WollensakOpticalCo.Rochester

34、,N.Y. Allen Mfg.Co.Hartford,Conn. AlliedControlCo.,Inc.New York, N.Y. AtlanticIndiaRubberWorks,Inc. Chicago,III. New York, N.Y. Chicago,III. Cleveland,Ohio New York, N.Y. Cleveland,Ohio Paramus,N.J. PrecisionThermometer Inst.Co. Raytheon Mfg.Co. Shallcross Mfg.Co. SimpsonElectricCo. SonotoneCorp. So

35、rensonlU(leChHkSt:lup 00203-15 SectlOnV Paragraphs5-11to5-12andFigure5- 2 Model 739AR a.Setthe739ARcontrolsasfollows: c.Advancethe739ARAMPLITUDEcontroluntil the419Areads6.5millivoltsoutput.(Use METERSETcontroltosetmarkerexactly onSETLEVEL.) b.Disconnectthe739ARoutputcableandcon- necttheoutputofthe73

36、9ARtotheinputof the11049AThermalConverterusingashort cableterminatedintwoBNCjackconnectors. Connecttheoutputofthel1049Atotheinput ofthe-hp-Model419A DC NullVoltmeter (IOmillivoltrange). 0.3to1Me 3 CCW 3 RANGESelector FREQTUNING AMPLITUDE ATTENUATOR cuitisadjustedatthefactoryat theOUTPUTterminalofthe

37、739AR. Iftheexternaloutputcable 739A-16Aoranyotherlongcable isusedincatibratinganinstru- mentathighfrequencies,this cableshouldbetheinputtothe ThermalConverter.The50ohm loadofthecablemustberemoved astheThermalConverterhasa 50ohminput.C16ontheDiode Boardmaybeadjustedforflatness overtheentirerange0.3M

38、cto 10 Mc.(SeeParagraph5-29.) Replacethe50ohmloadincable aftercalibrationiscompleted. DO NOTEXCEED7.5MILLIVOLT OUTPUTASTHETHERMALCON- VERTERISEASILY DAMAGED. f.WiththeMETERSETcontrol,placetheMETER pointerexactlyonSETLEVEL.Do notadjust theMETERSETcontrolagainthroughoutthe remainingportionofthisproced

39、ure. g.Connecttheopposingvoltagesupplytothe419A DC NullVoltmeterasshowninFigure5-2. (ComponentsarelistedinTable5-1designated nullsystem.) h.Withthe739ARMETERpointeronSETLEVEL, adjusttheOpposingPowerSupplyforanull orzeroreadingonthe419A.Decreasethe rangecontinuingadjustmentuntilazeroread- ingonthe100

40、microvoltrangeisreached. j.Sweepthefrequency5cpsto300Kcadjusting the200Samplitudeateachfrequencyuntilthe 739ARMETERpointerisexactlyonSET LEVEL.From5to10cps,theDCNullmeter mustnotvarymorethan+82microvoltsor - 204microvolts.From10cpsto300Kc,the DCNullmetermustnotvarymorethan82 microvolts.Sixtymicrovol

41、tscorrespondsto O.5%rmsvoltage.Consideringthe0.2% accuracyoftheThermalConverter,thisal- lowsavariationoftheabovevalues. 5-11.FREQUENCYRESPONSEOFTHEINTERNAL OSCILLATORMONITORINGCIRCUIT(3volts). 5-12.Thisisforapproximately3voltoutputusingthe -hp-Model1l049AThermalConverter. NOTE TheFrequencyResponseof

42、In- ternalOscillatorMonitoringCir- DONOTEXCEED7. 5MILLI- VOLTOUTPUTASTHETHERMAL CONVERTERIS EASILY DAMAGED. DCNULL VOLTMETER OPPOSING VOLTAGE SUPPLY r-, hp739AR FREQUENCY RESPONSE TEST SET I 6K I hp419A go 0) I P FINE I t=lLl RANGE500 I 10MV I I 1.34 V U- 50 I ;,+ ,) COARSE0 onthetopscale. e.Repeats

43、tepdforallATTENUATORpositions tothe0.001placingthe400H inthesamerange astheattenuatormarking.Theacvoltmeter shouldreadO.96%onthetopscaleforeach setting. FrequencyTolerance 0.3megacyclesfrom.282000to318000cps 0.5megacyclesfrom470000to530000cps 1megacyclesfrom940000to1060000cps 1.5megacyclesfrom141000

44、0 to 1590000cps 3megacyclesfrom2820000to3180000cps 5megacyclesfrom4700000 to 5300000cps 10megacyclesfrom9400000to1060000cps 5-13.FREQUENCYRESPONSEOFTHEINTERNAL OSCILLATOR MONITORINGCIRCUIT(1volt). d.DonotreadjusttheMETERSETcontrolthrough- outtheremainingportionofthisprocedure. e.Connecttheinstrument

45、sasshowninFig- ure5- 2usingtheopposingvoltagesupplyfrom componentslistedinTable5-1designatedfor nullsystem. f.Withthe739ARoutputmeterpointeronSET LEVEL.adjusttheOpposingPowerSupply fora nullorzeroreadingonthe419A.De- creasetherangecontinuingadjustmentuntil azeroreadingonthe100microvoltrangeis reache

46、d. g.Slowlysweepthefrequencyofthe739ARfrom 0.3Mcto5 Mcreadjustingthe739ARAMPLI- TUDEcontrolateachfrequencyreadinguntil the739AR outputMETERhasitspointerexactly onthereferenceline.The419Ashouldnot deviatemorethana 82microvolts.Sixty microvoltdeviationcorrespondstoo.5%of rmsvoltage.ConsideringtheO.2%a

47、ccuracy ofthe11049AThermalConverter.thisallows adeviationof 82microvolts. h.Repeatstepgusingfrequenciesfrom5Mcto 10 Me.Thedeviationmaybefrom+82micro- voltsto-204microvolts. 5-14.Thisisforapproximately1voltoutputusingthe -hp-Model 11050AThermalConverter.Followpro- cedureinParagraph5-12.stepsathroughh

48、.except forplacingthe739ARATTENUATORto1 voltand usingthe11050AThermalConverterinplaceofthe 11049A. a.Set 739ARcontrolsasfollow:;: 5-15.FREQUENCY ACCURACY CHECK. 5-16.Thisisnot aspecificationforthe739AH.It maybeperformediffrequencyaccuracyisdesired. AdjustmentproceduresarelocatedinParagraphs5- 24 thr

49、ough5-28. RANGESelectorSwitch FREQTUNING AMPLITUDE. 0.3to1Mc 3 ondial Advanceuntil OUTPUT METERreads SETLEVEL 5-19.ThefollOWingisacompleteadjustmentandcali- brationprocedurefortheModel 739ARFrequency ResponseTestSetandshouldbeperformedonlyifit haspreViouslybeenestablishedthatthe739ARdoes notmeetspecifications.Ifthefollowingoperations donotrectifyanyerrorwhichexistsandallthecon- nectionsandoperationshavebeenchecked,referto thetroubleshootinl(procedures,Paragraph5-32. 5-20.MECHANICALMETERZEROADJUSTM