Manuals / HP / Car Audio and Video / Car Stereo System

HP Car 3490A R c * o lI l r g S, Lloo, R34 46.4 K, LO Anaiog Assemsly P L I F I E R Response

Models: Car 3490A

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Page 261

)LO ANAI"OG ASSEMSLY	A M P L I F I E R
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HP Car 3490A manual R c * o lI l r g S, Lloo, R34 46.4 K, If U8 is BAD.OUTPUTWAVEFORMS Will 8E Loadeddown

Contents

Tt,,,,t MuitimeterHewlewpackard PrintedAPRIL ManualPartNo MicrofichePartNoTableofcontents C0NTENTSGontd RABLEOFCONTENTSCont,d Listofillustbations ACAdiGüffi Diagram Äl,il ?7l+eatic ?rorrPorariryR,tüä Frz1lNTBoDucTl0N 12ACCESSORIES.AVAITABLE0PT0NS SPECTFtCATI0NS14INSTBUMENT.AND Manualidentifica T I O N Lo . t 35+o . os +o . o2sOo7 .005 .0m Contd Specifications8 1 5 0 O07 .oo500fiv SpecificationsCont,d1000.0v 24hours23o 10cSectionI Model34904 GenerallnformationContd DVs/uVin = vs/H rl Dvs/HNTR0DtCTloN REcINSTALLATION.OFOPTIONS InstallationBenchUse LsolatedData0utput0ption021-hp-111ZlAl29INTERFACE.CONNECTIONS Option050andOption060Data0utput0ption021 RemoteGontrol0ption022Fc ö SectionII Model34904 7N i 3i -s t** JrJü,1tOPTtoN021 5 E E i F = = REMOTEINPUTCONNECTORJ72H* F EI = 6 s i ä 2 qd E ? 3 5 fr i F 3 ä = ! 9 i lGeneralPurposelnterfaceBusConnections RearInputCablepart NO. Length 10631A 6 3 1 10631CGPIBBUSCONNECTORJl2 GeneralPurposeInterfaceBusConnectors9 9 f OutguardSample/HoldConnections,0ption040/045 TriggerConnections,GPIB0ption030S7-30360-37s RepackagingforshipmentD e l 3 4 9 0 a For J7 is -hp- Part No -0084 Amphenol SectionIII Model3490A Instbumentcapabilities WARililG13FRONT.ANDREARPANELOESCRIPTION 15MAXIMUM.INPUTVOLTAGESTurn-OnandWarm-Up I7 . GeneraloperatinginstructionsGuarding FloatingMeasurementsSELF.TESTOPERATION Resistancemeasurements AcvoltagemeasurementsOutputSignalsandLevels 60.0hmsSignalVoltageandCurrentInputConnections 62.0hmmeterSampteRateandBesponseTimeInputSignalsandLevels InputSignalRequirements79.0utputSignals Data0utputlsolation030 GPIBBusSignalsSRo DAC103GPIB.Controlof3490A 101Talk.0nlyNoControllerRÄi+ -cg- lL L lTo7 AddressCodesAsciicodecharacter Binarycode Octal Code A R a C T E R ProgramCodes2 3 4 5 6 USEF D Ldav349OAand Printerand 3490AWill acceptdata PrinterwillGPIB0peratingExamPle I X E D N I 1 JOoü 0 f R \ r @üoü@f E \ SetsLREN LOWon bus\tD?u6,.. TlE,, . ?5V 136Controlby.MarkedCardProgrammerTo haltprogram,press SroP l CMD?U6 OUTPUT13,30 ..M3R7F@EOr o o l 4 0 z o 349OA PRoonnvr LrrruE,ir27 l F r160Sample/Hold.TriggerSignalRequirements 158Input.SignalLimitations152Special.S/H0peratingGonsiderations 156Guard.ConnectioninSample/HoldMeaurementsO40 O20 165Initiating.Sample/HoldMeasurementOtherOptions 040 030Typicaltimereouiredto SETTLETO1 % 173Using.theTrack/HoldMode200 1000vM EO F S / HT R I G G E R TnputvoltageatVoltageactually MeasuredV e 179Using.theAcquire/HoldModeT a Vc-vs T sRatioMeasrementProcedure 182Using.50Hz or 60Hz PowerSourceOptions 050or060$184.RATIOlfleasurements0ption080 $186.ExternalBeferenceVoltagesModel3490A ßüy 4I . Intboduction+3 . Generaltheoryofoperation RangeandFunctionControl Display+19 .DCANAL0GCIRCUITS LnputAttenuatorBoottrapCircuit SwitchingCircuits+23. DCAmPlifier +25. OCAmplifierGainLs, ys OtuiSectionIV Model3490A Rt-- c-++Integratorcircuits Dual-SlopeIntegrationIntegratingAmplifier ZercDetectAmplifier L44. x 20Amplifier52AC.CONVEBTEB ACAttenuatorsHmmeterPowerSupply OhmsconverterCurrentSource HmmeterReference +70 ISPLAYASSEMBLYFigureInputProtection DisplayUnitsBuffers DataGounterTimingCounter M I N GR0,0m 10. Block Diagram,Main LogicASM Flow ChartModel3490A Tl-90.AlgorithmicStateMachine 11. Block Diagram,Main LogicCircuitsEnaele P U T S Enable Oualifierinput To ROM 105Input.PolarityStorageTransferandZeroDetect +II7 . Referencesupplies +il5. DCSWTTCHNGLoGrC+ I 7 RatioMeasrements0ption080Powersupplies +128 .FBONTPANELS1VITCHING+ t 134Logic.Test,No.l +I32 . Self . TestfunctionPolarityin Ratio Measurements G H+137.10V RangeZero,TestNo.2 TurnoverError,TestNo.3+143.0.1VRangeZero,TestNo.b 4145.x .01Atten.x, 100Gain,TestNo.6+158 .DATAOUTPUTOPTION021 +r9 4t74.REM0TEC0NTR0t0PTtoN022LocaURemoteFlip-Flop +188.ShiftRegistersDauFlag 198GPIB.SystemGPIBSystemOperation +2rFigwe 4-23. WaveformslllustratingAcquire/Hold Mode +212.SAMPLE/H0tD0PTl0Nll40or045216Acquire/Hold.Mode Sample/HoldAnalogCircuits Too+23 @ n zRoo Ja+zCompensation TooK228Sample/Hold.LogicCircuits Flgure4-27. Sample/HoldLogic Block Diagram+25 Lye e outpur512 615.0 1000v 124.4 154.O DC AmpExternal Exterml Hold H HehsPage Ortoroo OruY --Jl Figurb4-30. Sample/HoldMeasurementSequenceWaveformsarenot drawnto timeo, o,,rnI?lt Example of TRACK/HOLD MEA SurementseouenceIntegrator RIOLD A1 bHOLD B r l l I-r Gort +prr2zrs.i Qrs Sre Ero-+ 3r4 Zra Orr10kn RecommendedTestEquipmentRecommendedtesteouipment TNTB0DUCTIoNPerformancechecks S7. Performancetests $9. Dcvoltmeteraccuracytest@ \ d Performancechecks15OHMMETER.ACCURACYTESTS L6. PreferredMethodAC Voltmeter AccuracY OhmmeterAccuracy1OO ACCOMMON.MODEREJECTIONTEST PebformancechecksDcvoltmeterinputresistancetest S24.ACNORMAL.MODEREJECTIONModel3490APERFOBMANGECHECKS Rrr-rrr--rO o ? 28AC.VOLTMETEHINPUTIMPEDANCETESTTest Oscillator @ \ - O @ @ o oMU L T I M E T E R h p 3 4 9 O a 6 5 2 aRATI0PEBF0BMANCE0ption 080 Perfohmancechecks$38. DC/DCRatioAccuracyTests + 100.000ExternalReferenceInputResistanceTest S41.AC/DCRatioAccuracyTest45GPIB.0PEBATIONALCHECK0ption030 Ext Ref Nput Lnput Display Limits Range VoltageLo v Ranse It l l K o PERFORMANCECHECKSModel3490A1000kO range +tll Fj Fl Fä il Ir fliIiI Ii tti 1üj Li i lRf,lIr i5i 1.+ri R * ! i t F TI i , Il It I l L1,1tiAdjustment Procedures$ 51 .ADJUSTMENTPROCEOURES PowebsupplyadjustmentDczeroadjustments Model3490AAOJUSTMENTPROCEDURESSectionV$57. Referenceadjustments Dc standardhp- 7a0Bis requiredfor these$66. Ohmmeteradjustments 69SAMPLE/HO.LDADJUSTMENTS73.0ffsetAdjustment Model3490AADJUSTMENTPROCEDURESSectionV$75. DielectricAbsorptionAdjustment Dc standardhp- 7a0Bis requiredfor thisRatioreferenceadjustments AojustmentproceduresLqe OrrraColTect AdjustmentproceduresTestrecord Perfobmance001v r 0.oo1v PerformancetestbecordcontdLO.V l O V 1 0 + 1 2 . O O O50000v Ooooov 120000v PerformancetestrecorocontdExt Ret Fngu V 1 0 00000v 10.üoo 12.0000vOrderinginformation IntboductionNON.LISTEDPARTS ProprietarypartsReference HPPartNumber OtvDescription Mfr Mfr PartNumber Designation Code B l e 6 1 . R e p l o c e q b l eP o r t sB l e 6 1 . R e p l o c e o b l ep o r t s l C o n t d l Rcor-@4o Leol-m4ol\Model Reference OtyHP Part Numbel B l e 6 1 . R e p l o c e o b l eP o r l s C o n t dB l e 6 1 . R e p l o c e o b l eP o r t s C o n r d B l e 6 1 . R e p l o c e o b l eP o r t s C o n t d f QtyAI R3A AIR3@ 28480 2a4AOB l e6 R t s l C o n t d f E p l o c e o b l eAterei alnz? Model 3490ÄOtyDescription Mfr Code Mfr PartNumber B l e 6 1 .R e p l o c e o b l eP o r t s C o n t dDesignationReference HPPartNumber Oaa+-rrtt $ B l e 6 1 . R e p l o c e o b l eP q r t s l C o n t d lReeo-sg DMT4LOONR5ß7 B l e 6 1 . R e p l o c e o b l eP o r t s C o n t dA5s4 Sli2 AoaroassyrehotejuxperCr r?21 OtyCB a72l ?5r-orloDescription Mfr Mfr PartNumber DesignationHPPartNumber Code Otv28aao 2A480Re*-ooar lil B l e 6 1 . R e p l o c e o b l ep o r r s C o n r dZroo rzaaAA Orzo-oo+oReference HP Part Numbet otv Description Mfr Mfr PartNumber CodeDesignation B l e 6 1 . R e p l o c e o b l eP o r t s C o n t dC8 ?2rl B l e 6 1 . R e p l o c e o b l eP o r r s C o n t dC5 22at DrT4LOaraT u 2 I l 5 u ModeI34904AI3CR8 O O E B R E a K D O I I NModel Section R 2 rCaeleriaeon Ottgiitrdrei Isolatii Boardassy CableribbonHeiioi A22API600 B l e 6 l . R e p l o c e o b l eP o r t s l C o n t d400 A27RIA2ARI B l e 6 1 . R e p l o c e o b l eP o r t s l C o n t dRfxd Cotp IOK OHX IOI L1Y OBDZ9cl 2 e c t 429C4 29C5 OHn 1trÄ 1/4W I P l2K OHI lot I I P 22K otr lotA3IU3 A32RIMfr Code Reference HPPartNumbet oty Description DesignationA34YI 2211 2211 CBA39RA 2A4AO 2S4AOReference HP Part Numbel B l e 6 1 . R e p l o c e o b l eP or t s C o n t dT20/o EIlrDtrs PosT assY B l e 6 1 . R e p l o c e q b l eP o r t s C o n t dIcxssIs assY 284r0 2a+ao 2A480 28480 2g4AO 284aODescription Mfr Mfr PartNumber HPPartNumberReference Xo1OtvDescription Reference HP Part Number DesignationMfr Code Mfr Part Number B l e 6 l . R e p l o c e o b l eP o r t s l C o n t d lMP37 MP23 SectionVIMP7 Designator L M P l a MP1B M P l C MP1D MP2 MP3 MP4 MP5 MP629500043 318x32ACCESSF0RSERVtCtNG PbeliminarytroubleshootingTroubleshootingtrees Powersupplychecks13DC.ANAL0cCtRCUtTS TableT-2. PowerSupplyJumperWiresAZAsemblyExchange DCAmplifierChecksNlii DCAmplifierSwitchingGircuitsA N D 0 V L E V E L S O C C U R a T I G G E R S C O P E a T a 1 T P K , + S L O P E33AC. Convebtertroubleshooting 3I .INTEGRATOR Troubleshooting37OHMS. Convertebtroubleshooting 21A. -to-C0NVERSt0ND CtBCUtTCHECKSLogictboubleshootingsuggestions DisplaytroubteshootingExternalTriggerCircuitGheck 65SAMPTE/HOLD.TROUBLESHOOTINGTREES59SAMPLE/HOLD.SERVICING Accesto Sample/HoldGircuits03490-006M 2200013903490€6528 O3490-2730175SCHEMATIC.NOTES RATIO.TBOUBLESHOOTINGAmplifierZerc0ffset + 5 LogicgatesymbolsTruth Table Truth TableU 4 o t SectionVII Model3490A AlphabeticalListingof 34g0A MnemonicsAlu401 Rexe Nrsc= l Tl-lIaFeV-pF Guspb b lPage I1Lgji Rtl7-r2 I1glilIai ott *nn !drp6 ltnt. rync,+.1@ + InputLl?Qxl c207c2or @ @@3ttr . n ? 1 t 6 1 l 7 + T i + ?T E UiLQ208 YES3 6 m s i 4 Q2O5 t1 swithAITPK. + Ratio INTO2or R317-10205 0208RaG +.JLLfT Q9e299A See Notes14,iä Ffi?rSlI Ov1--t==- -l6oms 1s17-t6LOomsF R7vl lTlrtlt Wath AnDr Llo Rd 15 ot Altrt. JFuldbo+5V Lm r . ttTlrtlt Wath AnDr Troubl .. hoor A7Ot ?CRIOüa ll R7l7-r8Eff#ri #lsriieo,e*lIub s!!h I lT9lt DisplayTroubleshootingTreeT l L i l t l=LJ. L--l ITa --- itTEv Ru*rffifcO 1 o NVWPage Lirlt?lt..it \- toresh@rArur5 aIut1 J 3t,1O24 oo24 @24 oo24 9032 oo24 t.o24 n 4 n2.4 Lop Displaysholdread Initiare 6 mre smples+ 10.oo24 + 60O0.xxOLS l . l Tl=lLDr s €@CI6@@e#ffiS + + 5 n-s l rTtj ,o Otuu U.T,J,l,,t-t+ i O 5 4 s F +5 ms-l2317-1 10. Logic Clock TroubleshootingTreeL sl \f -Jt +1 l THttttffi$E B?tr+1HHHLE r r r r r r r l +ft$b!tooUs-l Url L- l l---,.lLlt 5 aJtr2cr Llj. -zooms*#ll-+l.l-r \ÄÄ+- zoomsl PulsesEa . f Ti1i1-t.i1 = b3mtl 2s17-26Ffi I. J?At7A2 GigNOI€S Tlu2, a t1u3,ArlTh.-l =rF+ 5vr-r 1o.4ßFRtN*16t12 Figare7-12.RemoteTroubleshootingTree,Option022 2717-28+s-Yml +o.cF9 0 D- 3 3 8 Start338r Hffi3Cauil oN . l 13. GPIBI/O TroubleshootingTree,Option030 2917-30Hp Porl No O Rev . B Port No V . CÖl--.le A27KI Shoulo 8€ CLOSED.SET SAM CorrecnD a SET S/H Sayitch to TFACK/HOLD Main CIRC-IIT8OAFO. ShouloaeCABLESCORRECTLYGO. to Oft-.*l T3t17-329 0 D 3 4 3 HOLD. M€ASURE Voltage ATHp Fort No -66527 Rev.B I,lPort No . O349O Rev . C To A2 X EEogeof .AIPLIHOU TRIGGCR!G 8Ap-crtot awrcH To rRcxIore Sigial G€S High ToteJüJ Ffi.f-LRävnG.iir 3 f r a3490-0 73317-34Hp Pott No.O349O P U T LOWEXT REF TPC LOW P U T TPCHigh TPC A13CR6TPC + l 0G H LOW G H LOW H I G H L O W 16. Ratio TroubleshootingTree A33 A31 Rearof InstrumentA12 A17 A22 A11 3 or A36 A34 A35 A30 I11 € dRal 111Jj,i @ @.6r +++F+r@a#Jälslt*tJl=l Rö*et e J lÜä,ierispgglg*@ WEE @D@@@@@ ++++++++f++Evvvvvvvvvvvv + öEfEU 737 18 a Block DiagramWüE,Ä,li FP?fäREFEBETTCEDESIöTATIOtIS CoKnoLli-@@@@@@@ LelQgIlgt,,a ,,r.i.li Q lOverloadprotection HovpoverloaoprotectionhA R D T6azt Bootstrap P L I F I E RRuorerzV AA A M P L I F I E R\+l Feedbackattenuator? z e 1 2 z Z r z l $E?391740 Zl-----l@$Y@ Y 6ö Ff$$**H++ 9i czo1?o70 f IRrr5- l .FrrBll- l Pt lP r fFRoM Sv---*-l---5v Lp/0 Al I MArNcrRcurrassEMBLYo34so 6650r +ov +rovSueeLv +rzV ----d-tr-E +tzv +5V +5v TZV TZV ---b C203 o.331411742 Zero DetectT7v- t7v CR202 Tf,rl Faq h-,,dnXPf*trt*r+9e . E Rblhb-l- --,1Ott,t FfieItu ?-rv+REFERENCESUPPLY F E R E N Cpeo L a R I T YL O G I CV E R T I N G P L I F I E R FigrU3o! ----t 7431744F E R E N Cpeo L a R I T YL O C I C V E R T I N GRrr Nililji ß?i-,- *$1,sE1iVLlt ri.ä-i.i Ffi ?ääijO * 9sö $Powerfrom -5v---dä-!-- IP*333 O*. n i!g!?ifiJjscaNBH3 1 6 t 7451 \------lJSiorra TimingcounterI3g.i P .L.iU.B Ll 11Stir lT- Il Äiiiirr lir,il..1 Ilir ! o @ @, = T-TRua --I xma I3Bl,J-rNne--r LHur R N O N C L E a R R C U I TRöüärrrr-l 3bEi,?#?5Silij FRoMU6iIäL o OtonräL8d,tshäl 3Yä1..dP Tansferenableh F R O MU 9 2A N S F E RA N D Z E R O D E T E C T P U T L a RIT Y StorageIl J Pp* @@@@@@@@@@@@E i i + + i + @@@@@@@*späsw6ffi-l IlJ**io**l.Io,lLffioi Fää-.trto-*totSoupr-Ezro-r-oirfr Soue.e,.oloieftil-l74917-50 Fs-rLErHoLDpi6il-l\ 9 t r l = l + q rHp PortNo O \ R lRr,rorHER Ig t31,.9uIGgARo220V Toov T20v 240V Regulator OuiroTOAa Grppry Optrorr Assr Ozot+ l 7 v Regulator 5117-s2+3OV Regulator 3OV RegulatorHp Port No.O349O-66503 REV . BBCD Roaru4oreil Enable=i33SfTHr-+ PolaritydisplayU4,uro Polaritydisplay EnableA N N E R a T O R Scan DecoderIo*F Figwe 7-27. SchematicDiagram,Display, A3S3l7-s4 Ra FE FA FB= E ComponentsideR C U I TS I D E Q N a e r , *I .l ,*l ,i , ,ElllRANGEIH**iL S l r q r lRor..RArEcH,rrr., tfl*l R*.,j#LFaN6E-l s4 Ss -s6LFUNcroNl Test+ + 6 D =sÄl---lLl l L-sJA6T* .* r*.* *-..u V, cK++tzv ---fre- +rzv r l +5v --+r5- +5v Attenuator OotConverteramplifier + r 7S7l7-s Figwe 7-29. SchematicDiagram,AC Converter,A6Filter Nc corvepreR ourPUT1Drluod O6t9O-20999 Ofqlrod 06t90-O999-lUeacpalpueHuoll3as Ifl3?5fö*co,c Ei-trFlt Bl,,J.li,i Vrx Norlrr,rn CNn.Norr vH GttornrvsnHounor RsnxoLN3UUnC l3unos Arn8rg Crlerueqcs Surq6 Urur8erq RelJouoJrV 0vLl6sU3t3NltHO33N3U3J3U Ssoucv 39N lmdNt? ? T 42242A22Al Fff.ItTrsGooo +l--.r 1M1 ASSEMBLY 3äYäiäT?lTl-?.1..iRxrnrr +l8oyJl,flyloTl,,t1 SAMPLE/ Hold TriggercircuitWro 7411142+f-!-l-tr-ourcuaRo Ro ooroorrr coNNEcroRJ6 Ro *.or. ,*r* coNNEcroRJ7Älll L J J lUr-l 5 aLEoR Eon Fil!Täläf ÄX?,3,.oQ U E N T I ALO G I C FrequeData Multiplexers Logtc Clock Frequencydoublerdelay+-n Outguard9 \ I C E N I a N ri fr. F # , . , JDAraFLAG 2eI+5vr---1i1+4 I G a N EW S H I F TR E G I S T E R S GuaroOi---qo + 4 lZfu*-rrot 74317-64At7 7 aOo-1 Al2 Hp porttJo,03490-66512 LO REMoTEnruruurrcraron + sLOCAL/ Remote FLIP- Flop LOCAL/REMOTEL-----\ RHs tl su31sr93uAJtlilo-*il1.iI Lockdelay91 .-Ct FlIto*.- -7u u5Rns+ \ .,- I \ Onr9nvu0 rdtIlnn-u3x3NBId Ouvngmo l,ssvZ r To A2 C D E F H J K L Hp Port NoF8fi8 18F8#Äi..* lLloo R c * o lI l r g SR34 46.4 K If U8 is BAD.OUTPUTWAVEFORMS Will 8E Loadeddown747l7-68 ?? l9Li9i.-.?Rt\u ? * t o RrreenrroRU l H Porf No . O349O Rev . C€l-----19 Ö1,*.-F Iäo*,j.,lj!,j OriTABu?,.ffiIi O 1M P L E /H O L D T R I G G E R CI RC U I T S Bs-uA L I F I E R M U L T I P L E X E R Hmtb?.46,f ?6Tr%r,i74917-70 CRs JilOEo o r a o r B orc o r o o t M SDoTo I Line Multiplexef Extebnal Triggef Ouoorn REcErw COPYRIGHTt973 by Hewlett PackaroCompa FC Company 36.BlockDiagram,3490AGPIBVOCircuits 7117-72Hp Port N o . O 3 4 9 O 6 6 5 3 4 R e v .A L24-----r3-l Or5Hp Porr N 0 3 4 9 0 6 6 5 3 6 Rev a N DOrurr9iorrrol98rfiilV TotRnvH ornv H Or6rnrv CucxJ Rvu . 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