Hammarlund_SP-600-JX_serv_AN16-45-222_1952.pdf

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1、.-.;.,-*-,.- T.O.R2-4-11-2 (FormerlyAN16-45-222) HANDBOOK SERVICEINSTRUCTIONS RADIORECEIVEIt MODELSP-600-JX (HAMMARLUND) PUBliSHEDUNDERAUTHORITYOFTHESEClnARY OfTHEAllfOICE ANDTHECHIEfOFTHEaUREAUOFAElONAUnCS ._-_.:.-._-*- AirForc.,VieD I,lthoNAS.Jacksonville, Fla.; NAS,Norfolk,Va.; NAS, San Die/lO, C

2、alifiAS,SeattleWash.; NASD, ASO,Guam;NASD,Pbjladelpbi. Pa. For.lllItlllBofanUablepubliCluJoDs seeNavalAeroDautic ,PublicationsIndex(NavAer00500). USAF AN16-45-222 TABLEOFCONTENTS Section I II DESCRIPTIONANDLEADING PARTICULARS 1-1.General 1-6.PurposeandLimitations 110.LeadingParticulars 1-21.Pertinen

3、tData. 1-34.OperatingandAdjustment Controls. TESTEQUIPMENTANDSPECIAL TOOLS. Page 1 1 1 1 5 7 9 .Section v Vl Page OPERATIONALANDORGANIZATIONAL MAINTENANCE.29 5-1.General29 5-6.SystemTroubleAnalysis33 f-12.Removal.36 f-15.MinorRepairandReplacement.36 5-23.Alignment andAdjustment39 f27.Lubrication.;39

4、 5-29.inspectionSchedule .40 FIELDANDFABRON MAINTENANCE.40 2-1.TestEquipment 2-3.SpeCial ToolS 2-5.CableFabrication. mPREPARATIONFORUSEAND RESHIPMENT. 3-1.PreparationforUse 3-4.Storage. IVTHEORYOFOPERATION 4-1.GeneralSystemOperation 4-4.ReceiverFunctionalOperation 4-61.Functional Operationof Mechani

5、calComponents. 9 9 9 10 10 10 11 11 12 27 6-1.MinimumPerformance Standards 6-3.Systems(Trouble)Analysis 6-8.Removal. 6-15.CircuitBreakdown 6-16.TubeSocket Voltage and ResistanceCharts 6-18.Alignment andAdjustments 6-20.Lubrication. 6-21.MaintenanceandInspection Schedule. 6-26.OverhaulSchedule VIIDIA

6、GRAMS. INDEX. 40 43 45 49 49 49 53 53 55 56 63 LISTOFILLUSTRATIONS FigurePageFigurePage 1-1.RadioReceiver,ModelSP-600-JX RackMountings. 1-2.RadioReceiver,FrontPanelView . 1-3.RadioReceiver,RearView ofChassis 1-4.OveralfSelectivityCurvesatTwo Megacycles. 1-5.Audio andOverallFidelityCurves 2-1.Special

7、Pliers 2-2.AntennaCa1?le. 2-3.CathodeFollowerCable 4-1.RadioReceiver,BlockDiagram 4-2.AntennaInputandRadioFrequency AmplifierSchematicDiagram 4-3.VariableandFixedHeterodyneFre- quencyOscillatorsSchematicDiagram 4-4.SingleandDoubleConverterSchematic Diagram., 4-5.455 kcIntrmed1ateFrequency AmplifierS

8、chematicDiagram 4-6.455 kcCrystalFilterSimplified BridgeNetwork. 4-7.BatFrequencyOscillator,Buffer, andCathodeFollowerSchematic Diagram. 4-8.AutomaticVolumeControlSystem SchematicDiagram. 11 2 3 6 7 9 9 10 11 12 14 18 19 20 22 4-9.AudioFrequencySectionSchematic Diagram.24 4-10.Self-containedStabillz

9、edPowerSupply SchematicDiagram.26 5-1.ReceiverSensitivityTestSet-up.28 5-2.ReceiverCathodeFollowerOutput TestSet-up.28 5-3.RadioReceiver,PartsIdentification32 5-4.RadioReceiver,Top View ofChassis33 5-5.RadioReceiver,Subassembly Identification.,37 5-6.RadioReceiver,AlignmentAdjust- ments.38 6-1.Recei

10、verOverallFidelityTestSet-up41 6-2.ReceiverAudioFidelityTestSet-up41 6-3.Receiver455 kcand3,955kcAlign- mentKRTIndicationTestSet-up54 7-1.RadioReceiver,SchematicDiagram57-58 7-2.RadioReceiver,ChassisConnection Diagram.59-60 7-3.RadioReceiver,TuningUnitonnec- tionDiagram.61 7- 4.RadioReceiver,Frequen

11、cyControl Unit ConnectionDiagram .62 AN16-45-222 LISTOFTABLES TablePageTablep. 1-1.TubeComplement45-3.ReceiverSectionsTestPointData35 1-2.FuseComplement 55-4. AlignmentFrequencyandAdjustment 1-3.TwlingBandRanges5Designalions. .39 1-4.ImageRejectionRatios76-1.ReceiverPerformanceTests40 2-1.SpecialToo

12、lsRequired(orMalnte-6-2.SystemsTroubleAnalysisChart43 nance.96-3.TubeSocketTerminalVoltages46 3-1.PowerTransformerTapVoltage6-4.TubeSocketTerminalRes:stances47 Ratings106-5.ReceiverAlignmentandAdjustment 5-1.ReceiverPerformanceTests29Procedures50 5-2.PowerSupplySectionTestPointData346-6.ReceiverOver

13、haulSchedule.55 Figure1-1.RadioReceiver,ModelSP-600-lXRackMountings II AN16-45-222 SECTION I DESCRIPTIONANDLEADING PARTICULARS section I Paragraphs1-1 to 1-13 1-1.GENERAL. 1-2.Theserviceinstructionsoutlinedhereinpertain totheRadioReceiver,ModelSP-600-JXrackmount- ings (See figure 1-1. ), manufacture

14、d by theHammar- lund Mfg. Co. Inc.,NewYork 1,N.Y.Theradiore- ceiver,designedformountinginastandard19-inch relayrack,has a lightgreyfront panel,atop cove.r and a bottom plate. Itisa 20-tuberadiocommunica- tionsreceiverwithsixfrequency bands to providefor the continuousorcrystalcont.rolled fixed frequ

15、ency coverageoftheO.54to54.0mc frequency range. 1-3.Thereceiveroperationisbasedonthesuper- heterodyne principle of recepHon whereinallcarrier frequenciesareconvertedto455kcintermediate frequency.To maintainperformance,thereceiver utilizesthesystemofdouble conversion, with an initialcOllversion frequ

16、ency of 3,955 kc, for thethree frequency bands above7.4mc. 1-4.Thereceiverself-containedstabilizedpower supplyisdesignedtooperatefroma single phase 50- to60-cycle,a-csource.The powertransformer primaryisprovided withtapscovering a line voltage range from90to 270 volts. Thereceiverisprotected against

17、overload by fusing the powertranSformer primarywinding with athreeamperecartridgetype fuse and thesecondaryplate winding with athree- eighthsamperepigtail type fuse.Theprimaryfuse and a duplicatesparearecontained in fuseholders onherearapron and the secondary fuseissoldered between the powertranSfor

18、merterminal11andchas- sisground. CAUTION Topreventdamage, maintain the fusecom- plement. 1-6.Therearapronofthereceivercontains ana-c outletforanelectriclamporclock andterminalsfor arecordplayerattachment.All attachments when usedmustbesuitedtooperatefrom the availablea-c source.Apart from the PHONES

19、jackcontained in the front panel (See 16, figure1-2.),and the antenna input connector (See 7, figure1-3.),allthereceiver attachmentmeansarelocatedontherearapron (See figure1-3.). 1-6.PURPOSEANDLIMITATIONS. 1-7.Thereceiverisdesigned to provide amplitude- modulatedorkeyed cwsignalsasaudioori-foutput a

20、nd frequency-shift cwsignalsasi-foutput.Itis usedin fixedand/ormobile operationssuchasare encountered at enclosedbasestations,on shipboard, orwhenairborne,even whensuchactivitiesaresub- jecttowiderangesintemperatureand humidity. The receiverisadequatelytreatedwith fungicidalvarnish to condition itfo

21、rtropicaluse. 1-8.Thereceiverissuitedto two-way operational activities andtomulti-receiverinstallations.Itmay bedesensitizedin thepresenceof astronglocal carrierby front panel manual switch means,or,a relayconnected toarearapron receptacle maybe hand-microphone activated toperformthe switchfunc- tio

22、n.Thereceiverdesign and shielding reduceits radiationcharacteristicstoa possibleminimum, therebycomplying with shipboard regulations anden- abling thereceivertobeoperated incloseproximity toallotherstation equipment. 1-9.Accessorycomponentsareassociatedwith the receiverin an operational activity.For

23、radiotele- phoneorlow-speedtelegrapha headsetisplugged in thejackcontained inthefront paneland/ora loud speakerisconnectedtothe audio outputterminalson therearapron.Forhigh-speed telegraph a tapere- corderistransmissionline connectedtotheaudio out- putterminals,ateleprinterreplacipg thetaperecord- e

24、rin the instanceofteleprintersignals. Thei-fout- put coaxial cable connectorontherearapronisused toprovidereceiveri-foutputfordiversityreceiving systemuse.Itisalsousedintheinstance offre- quency-shiftteleprinteri-foutputforcoaxial cable connectiontofrequency-shiftreceiverconverter equipment. 1-10.LE

25、ADING PARTICULARS. 1-11.Thereceiverantenna input coupling coilisde- signed to match a 100-ohm transmia.sion line. Abal- anced doubletorstraightwire antenna maybeused, thelatterpreferablywith one endofthe antenna coup- ling coil grounded. 1-12.Thereceiverhas arotaryturretwhich houses and providesfors

26、electinganyoneofthesixfrequency bands.Thelargeband change control knobisturned 360degreesto indent an adjacent band.Itmaybe turnedand indented ineitherdirection.A band indi- catordial visible through asmallfront panel window indicates the frequency bandselected.The control alsoaligns the dial freque

27、ncy indicatorofthe main dial,with theproperdialfrquencyscale.The main dialha:salsoanarbitraryscalewhich in conjunction with thevernierdial providesforcontinuousvernier scalesovereachfrequency band forextremelyac- curatelogging andresetability. 1-13.The single tuning controlislargeand flywheel balanc

28、ed toprOVideoperatingeaseathightraverse speeds.Itcontrolsboth the main andvernierdials. Ananti.-backlashgeartrainmaintains the extremely closecalibrationaccuracy and provides for theac- curateresetability.A tuning lock provides locking 1 SectionIAN16-45-222 1.SENDRECtoggleswitch 2.MODcwtoggleswitch

29、3.BAND CHANGEcontrol 4.TUNINGcontrol 5.TUNING LOCK 6.SELECTMTYSWitch 7.XTALPHASINGcontrol 8.BEATOSCcontrol 9.RFGAINcontrol 1.0.AVCMAtoggleswitch 11.METERRFAFtoggleswitch 12.AUDIO GAINcontrol 1.3.LIMITEROFFtogleswitch 14.XTALSswitch 15.DoFREQcontrol 16.PHONESjack 2 Figure1-2.RadioReceiver,FrontPanelV

30、iew AN16-45-222 9 .i-1r.JrD- ,. k Section I 1. 2. 3. BFOINJcontrol METERADJRFcontrol METERADJAFcontrol 7.Antenna 4.Allenwrench,setscrewNo.6 5.Allenwrench,setscrewNo.8 6.Allenwrench,setscrewNo.10 inputconnector Figure1-3.RadioReceiver,RearView ofChassis 3 S.ectioh. I Paragraphs1-14to1-20 AN16-45-222

31、action without affecting the frequencysetting.The tuningratiofromthetuningcontrolto themaindialis 50toone andtheratiofromthevernierdialtothe maindialissixtoone. 1-14.Therotaryturretplacesthe antenna,firstrf, secondd,andfirstheterodyneoscillatorcoilassem- bliesofeachflequencybanddirectlyadjacenttothe

32、ir respectivesectionsoftheprecisefour gangvariable ailcondenserusedfortuning. 1-15.Thecircuitforsingleconversionincludestwo stagesofr-famplification,amixer,a heterodyne oscillator,fourstagesofi-famplification, adetector andan avc rectifier.; anoiselimiterand ameterrec- tifier,abeatfrequencyoscUlator

33、,abeatfrequency bufferamplifier,ani-foutputstage,ana-famplifier, and ana-foutput powerstage. 1-16.Thecircuitfordoubleconversiondoesnotin- clude theinitialgatestageofthei-famplifier,used forsingleconversion,butincludesasecondmixer .andsecondheterodynecrystalcontrolledoscillator. The power supplysyste

34、mincludes a full-wavepower rectifierand voltageregulatortube, and a full-wave biasrectifier. 1-17Forfixed channelcrystalcontrolldoperation, thevariablefrequencyfirstheterodyneoscillatoris replacedby afixedfrequencycrys.talcontrolledoscil- lator.Thecrystalusedisinsertedinthefrequency controlunit whic

35、hcanaccomodatefromonetosix crystals.Frontpanelcrystalswitching prOVidesfor theselectionofthenormalhighstabilitycont1J.1uously vriabletuningoranyoneofthesixcrystalholders, crystalfittedforspecificfixed frequencysignaloper- ation.Forcrystalcontrolledfixed channeloperation, themaindialissettothesignalf

36、requency;thecry- stalspecifiedforthesignalfrequencyisswitchse- lected,and tuningisaccomplishedbythedeltafre- quencycontrolofthefixed frequencycrystalcontrol- ledoscillator.When sWitchingfromcontinuously variabletuningtocrystaloperationforthesamesig- nalfrequency, aslightretuning of the tuningcontrol

37、 1sdesirable.Thecrystalsarenot supplied with the receiverbutarepurchasedseparatelytosignalfre- quency specification.OnthethJ;ee frequency bands below7.4mc the frequency ofthecrystalisthesum ofthedesiredsignalfrequency plus 455kcandonthe threefrequency bands above 7. 4 meitisthe sum of thedesiredsign

38、alplus 3,955 kc,theallowablecrystal frequencytolerancebeing0.005percentof frequency. 1-18.Thereceiver-dualscalemeternormallyindi- catestherelativestrengthofthereceivedsignalin decibelsfromonemicrovoltwhenther-fgaincontrol isfull on, andisusedfortuning on ave.Ondepres- sionof the panelmeterswitchthel

39、owerscaleofthe meterindicatestheaudio output powerlevelindeci- belsfromsixmilliwattsstandardreferenceoutput. 1-19.TheavccircuitIseffectiveformcw operation andforhigh-peedcwoperationdue totheincreased timeconstant prOVided oncwoThebeatfrequency oscillatorprovidesahighorderof frequencystability andisr

40、elativelyfreefromoscillatorharmonics.Os- cillatorlock-iniseliminatedthroughuseof abeat frequencybufferamplifier.Thisfeaturemakesit possibletotunesignalssharplytozerobeat.The beatoscillatorbufferhasan injectionleveladjust- mentcontrolinitscathodecircuit. 1-20.Thereceiverhasswitchmeanstoprovide a choi

41、ce ofanyoneofsixdegreesofselectivityIthe threesharperband widths beingrealizedthroughuse of acrystalfilterinthei-fsectionofthereceiver. Further,thecrystalfilterhasphasing provisionto highly attenuate heterodyneinterferencewhen the un- wantedsignaliscloselyadjacenttothedesireds1gilal tundin.Intheinst

42、anceofnoise of thepulsetype, suchasthatduetoignitionsystems,receivercir- cuitryisprovidedto.by-passthenoisefromthere- Table1-1.Tube Complement IANTypeQuantFunctionReferenceSymbol 6BA67Amplifiers;r-f,i-f,bfobuffer.VI,V2, V7, V9, VI0,Vll,V12 6C43Oscillators;valfreq,3.5me,bfo.V4, V8,V13 6AC71Oscillator

43、;freqcontrol.V3 6BE62Mixers;1st,2nd.V5,V6 6AL53Detector and with twomicrovoltsreceiversignal input thei-foutputisa minimumof 200millivolts.- 1-26.TUNINGBANDRANGES.Thefrequency tuning rangeofeach of thesixbandsofthereceiverare shown intablel-3.Theinnermostscaleofthe m.ain tuningdialisthatforthe lowes

44、t frequencyrange. The bandnumeralassignedeach bandis-anarbitrary, designation. 1-27.SENShIVITY.The sensitiVityofthereceiver overtheentiretuningrangeistwomicrovoltsorbet- tel,forasignal-plus-noiseto noiseratioof10to one atthe audio outputterminals. 1-28.SELECTiIVITY. Theselectivitycurvesfor the sixpo

45、sitions oftheselectivityswitchareshown in figure1-4.Thegraphplotforeachcurveshows the kcoff resonance, above and below the nominal two megacyclessignalfrequencyformultiplesoftheres- onance input, at whichthereceiveraudio output level isequal tothatchosenatresonance. 1-29.FIDELITY.The graph plots (Se

46、e figure 1-5.), show the overall and the audio output attenuationver- susfrequencycharacteristicsofthereceiver. 1-30.REJECTION RATIOS. The 455tci-frejection ratioof thereceiveris69dbat600 kcdialsettingand improveswithincreasingfrequencyoverthethree lower frequency bands, namely bands 1,2,and 3. The

47、3, 955 kci-frejectionratioof thereceiverisa minimumof94db for anyreceivermaindialfrequency settingwithin thereceiverrange overthethreehigher frequency bands, namely bands 4, 5, and 6.Theim- agerejectionratio,atthe high frequency endofeach band,expressedasa voltageratioand in decibels,is shown in tab

48、le 1-4. 1-31.AUTOMATICVOLUMECONTROL.The avc action maintains thereceiveroutput constant within 14db when the inputisincreasedfromtwoto200,000 microvolts. 1-32.LINE SUPPLY REQUIREMENTS.The single phase, 50-to 60-cycle,a-csourceusedto provide tDputpowertothereceiverisconnectedtothe 95, 105,117, 130,19

49、0, 210,234,or260 volt power transformerprim.arytapwhichmostcloselyagrees with the availablea-cline voltage.Thereceivera-c line power consumptionis130 wattsat117volts,2.5 amperes,ac.The maximumstartingcurrentistwo amperes. Table 1-3.Tuning Band Ranges Band No.Frequency Range 1n.54to1.35mc 21.35to3.45me 33.45to7.40mc 47.40to14.80mc 514.80to29.70me 629.70to54.00 mc 5 SectionI . AN16-45-222 i510505 KGOFFRESONANCE 10 NUMBERSDENOTESELECTIVITYSWITCHPOSITIONS 1,2AND3NONCRYSTAL -4,5AND6CRYSTAL 23