22000139, 03490-006M, 03490€6528, O3490-27301

Model3490A	SectionVII

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Item	Description	trp- Part No.
1	4 - 40 X 114wn headmachinescrew	22000139
2	Shield,aluminum	03490-006(M
3	LogicAssembly,428	03490€6528

4Spacer,.156LongX .125lD X .250OD 03804520

Shield,flexible

o3490-27301

64 -40X 3/8 nylon pan headmachinescrew 220047o'4

7	AnalogAssembly,427	o3490€6527
8	4 - 40 5lA pan headmachinescrew	2200.0149

Figure7-3. Sample/HoldAssembly.

7-1

Page 137

Image 137

HP Car 3490A manual 22000139, 03490-006M, 03490€6528, O3490-27301, 2200.0149

Contents

Tt,,,,t Muitimeter Hewlewpackard PrintedAPRIL ManualPartNo MicrofichePartNo Tableofcontents C0NTENTSGontd RABLEOFCONTENTSCont,d Listofillustbations ACAdiGüffi Diagram Äl,il ?7l+eatic ?rorrPorariryR,tüä Frz 1lNTBoDucTl0N 12ACCESSORIES.AVAITABLE0PT0NS SPECTFtCATI0NS 14INSTBUMENT.AND Manualidentifica T I O N Lo . t 35+o . os +o . o2s Oo7 .005 .0m Contd Specifications8 1 5 0 O07 .oo5 00fiv SpecificationsCont,d1000.0v 24hours23o 10c SectionI Model34904 GenerallnformationContd DVs/uVin = vs/H rl Dvs/H NTR0DtCTloN REc INSTALLATION.OFOPTIONS InstallationBenchUse LsolatedData0utput0ption021-hp-111ZlAl 29INTERFACE.CONNECTIONS Option050andOption060Data0utput0ption021 RemoteGontrol0ption022 OPTtoN021 Fc öSectionII Model34904 7N i 3i -s t** JrJü,1t 5 E E i F = = REMOTEINPUTCONNECTORJ72H* F EI = 6 s i ä 2 qd E ? 3 5 fr i F 3 ä = ! 9 i l GeneralPurposelnterfaceBusConnections RearInputCablepart NO. Length 10631A 6 3 1 10631C GPIBBUSCONNECTORJl2 GeneralPurposeInterfaceBusConnectors9 9 f Outguard Sample/HoldConnections,0ption040/045 TriggerConnections,GPIB0ption030 D e l 3 4 9 0 a For J7 is -hp- Part No -0084 Amphenol S7-30360-37sRepackagingforshipment SectionIII Model3490A Instbumentcapabilities WARililG13FRONT.ANDREARPANELOESCRIPTION 15MAXIMUM.INPUTVOLTAGES Turn-OnandWarm-Up I7 . GeneraloperatinginstructionsGuarding FloatingMeasurements SELF.TESTOPERATION Resistancemeasurements Acvoltagemeasurements OutputSignalsandLevels 60.0hmsSignalVoltageandCurrentInputConnections 62.0hmmeterSampteRateandBesponseTime InputSignalsandLevels InputSignalRequirements79.0utputSignals Data0utputlsolation 030 GPIBBusSignalsSRo DAC 103GPIB.Controlof3490A 101Talk.0nlyNoControllerRÄi+ -cg- lL L l Asciicodecharacter Binarycode Octal Code To7AddressCodes A R a C T E R ProgramCodes2 3 4 5 6 USE F D Ldav 349OAand Printerand 3490AWill acceptdata Printerwill GPIB0peratingExamPle 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@E Or o o l 4 0 z o 349OA PRoonnvr LrrruE,ir27 l F r 160Sample/Hold.TriggerSignalRequirements 158Input.SignalLimitations152Special.S/H0peratingGonsiderations 156Guard.ConnectioninSample/HoldMeaurements O40 O20 165Initiating.Sample/HoldMeasurementOtherOptions 040 030 Typicaltimereouiredto SETTLETO1 % 173Using.theTrack/HoldMode200 1000v M EO F S / HT R I G G E R TnputvoltageatVoltageactually Measured V e 179Using.theAcquire/HoldModeT a Vc-vs T s RatioMeasrementProcedure 182Using.50Hz or 60Hz PowerSourceOptions 050or060$184.RATIOlfleasurements0ption080 $186.ExternalBeferenceVoltages Model3490A +3 . Generaltheoryofoperation ßüy4I . Intboduction RangeandFunctionControl Display+19 .DCANAL0GCIRCUITS LnputAttenuator BoottrapCircuit SwitchingCircuits+23. DCAmPlifier +25. OCAmplifierGain Ls, ys OtuiSectionIV Model3490A Rt-- c-++ IntegratingAmplifier IntegratorcircuitsDual-SlopeIntegration ZercDetectAmplifier L44. x 20Amplifier52AC.CONVEBTEB ACAttenuators CurrentSource HmmeterPowerSupplyOhmsconverter HmmeterReference +70 ISPLAYASSEMBLYFigureInputProtection DisplayUnits Buffers DataGounterTimingCounter M I N G R0,0m 10. Block Diagram,Main LogicASM Flow Chart Model3490A Tl-90.AlgorithmicStateMachine 11. Block Diagram,Main LogicCircuits TransferandZeroDetect Enaele P U T S Enable Oualifierinput To ROM105Input.PolarityStorage +II7 . Referencesupplies +il5. DCSWTTCHNGLoGrC + I 7 RatioMeasrements0ption080 + t Powersupplies+128 .FBONTPANELS1VITCHING 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.REM0TEC0NTR0t0PTtoN022 LocaURemoteFlip-Flop +188.ShiftRegistersDauFlag 198GPIB.System GPIBSystemOperation +2r 216Acquire/Hold.Mode Figwe 4-23. WaveformslllustratingAcquire/Hold Mode+212.SAMPLE/H0tD0PTl0Nll40or045 Sample/HoldAnalogCircuits Too+23 @ n z Roo Ja+zCompensation TooK 228Sample/Hold.LogicCircuits Flgure4-27. Sample/HoldLogic Block Diagram+25 Lye e outpur 512 615.0 1000v 124.4 154.O DC AmpExternal Exterml Hold H HehsPage Ortoroo OruY --Jl Figurb4-30. Sample/HoldMeasurementSequence Integrator Waveformsarenot drawnto timeo, o,,rnI?ltExample of TRACK/HOLD MEA Surementseouence RIOLD A1 bHOLD B r l l I-r Gort +prr2zrs.i Qrs Sre Ero-+ 3r4 Zra Orr 10kn RecommendedTestEquipment Recommendedtesteouipment TNTB0DUCTIoNPerformancechecks S7. Performancetests $9. Dcvoltmeteraccuracytest @ \ d Performancechecks15OHMMETER.ACCURACYTESTS L6. PreferredMethod 1OO AC Voltmeter AccuracYOhmmeterAccuracy ACCOMMON.MODEREJECTIONTEST PebformancechecksDcvoltmeterinputresistancetest S24.ACNORMAL.MODEREJECTION Model3490APERFOBMANGECHECKS Rrr-rrr--rO o ? 28AC.VOLTMETEHINPUTIMPEDANCETEST Test Oscillator @ \ - O @ @ o oMU L T I M E T E R h p 3 4 9 O a 6 5 2 a RATI0PEBF0BMANCE0ption 080 Perfohmancechecks$38. DC/DCRatioAccuracyTests + 100.000 ExternalReferenceInputResistanceTest S41.AC/DCRatioAccuracyTest45GPIB.0PEBATIONALCHECK0ption030 Ext Ref Nput Lnput Display Limits Range Voltage Lo v Ranse 1000kO range It l l K oPERFORMANCECHECKSModel3490A +tll Fj Fl Fä il Ir fliIiI Ii tti 1üj Li i l Rf,lIr i5i 1.+ri R * ! i t F TI i , Il It I l L1,1ti Adjustment Procedures$ 51 .ADJUSTMENTPROCEOURES Powebsupplyadjustment Dczeroadjustments Model3490AAOJUSTMENTPROCEDURESSectionV$57. Referenceadjustments Dc standardhp- 7a0Bis requiredfor these $66. Ohmmeteradjustments 69SAMPLE/HO.LDADJUSTMENTS 73.0ffsetAdjustment Model3490AADJUSTMENTPROCEDURESSectionV$75. DielectricAbsorptionAdjustment Dc standardhp- 7a0Bis requiredfor this Ratioreferenceadjustments AojustmentproceduresLqe Orrra ColTect Adjustmentprocedures Testrecord Perfobmance 001v r 0.oo1v PerformancetestbecordcontdLO.V l O V 1 0 + 1 2 . O O O 50000v Ooooov 120000v PerformancetestrecorocontdExt Ret Fngu V 1 0 00000v 10.üoo 12.0000v Orderinginformation IntboductionNON.LISTEDPARTS Proprietaryparts Reference 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 s Model 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 d lRcor-@4o Leol-m4ol\ 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 d B 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 2a4AO B l e6 R t s l C o n t d f E p l o c e o b l eAterei alnz? Model 3490Ä DesignationReference HPPartNumber OtyDescription Mfr Code Mfr PartNumberB l e 6 1 .R e p l o c e o b l eP o r t s C o n t d 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 DMT4LOON R5ß7 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 Aoaroassyrehotejuxper Cr r?21 OtyCB a72l ?5r-orlo Description Mfr Mfr PartNumber DesignationHPPartNumber Code Otv28aao 2A480 Re*-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+o Reference 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 d C8 ?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 DrT4LOara T u 2 I l 5 u ModeI34904AI3CR8 O O E B R E a K D O I I N Model Section R 2 rCaeleriaeon Ottgiitrdrei Isolatii Boardassy Cableribbon Heiioi A22API 600 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 A27RI A2ARI 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 OBD Z9cl 2 e c t 429C4 29C5 OHn 1trÄ 1/4W I P l2K OHI lot I I P 22K otr lotA3IU3 A32RI Mfr Code Reference HPPartNumbet oty Description Designation A34YI 2211 2211 CBA39RA 2A4AO 2S4AO T20/o Reference HP Part NumbelB l e 6 1 . R e p l o c e o b l eP or t s C o n t d 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 284aO Description Mfr Mfr PartNumber HPPartNumberReference Xo1 OtvDescription 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 l MP37 MP23 SectionVIMP7 Designator L M P l a MP1B M P l C MP1D MP2 MP3 MP4 MP5 MP6 29500043 318x32 ACCESSF0RSERVtCtNG PbeliminarytroubleshootingTroubleshootingtrees Powersupplychecks 13DC.ANAL0cCtRCUtTS TableT-2. PowerSupplyJumperWiresAZAsemblyExchange DCAmplifierChecks Nlii 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 E 33AC. Convebtertroubleshooting 3I .INTEGRATOR Troubleshooting37OHMS. Convertebtroubleshooting 21A. -to-C0NVERSt0ND CtBCUtTCHECKS Logictboubleshootingsuggestions Displaytroubteshooting ExternalTriggerCircuitGheck 65SAMPTE/HOLD.TROUBLESHOOTINGTREES59SAMPLE/HOLD.SERVICING Accesto Sample/HoldGircuits 03490-006M 2200013903490€6528 O3490-27301 AmplifierZerc0ffset 75SCHEMATIC.NOTESRATIO.TBOUBLESHOOTING + 5 LogicgatesymbolsTruth Table Truth Table U 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@ + Input Ll?Qxl c207c2or @ @@3ttr . n ? 1 t 6 1 l 7 + T i + ? T E UiLQ208 YES 3 6 m s i 4 Q2O5 t1 swithAITPK. + Ratio INT O2or R317-10205 0208 RaG +.JLLfT Q9e 299A See Notes ?rSlI 14,iäFfi Ov1--t==- -l6oms 1s17-t6LOomsF R7vl l Tlrtlt Wath AnDr Llo Rd 15 ot Altrt. JFuldbo+5V Lm r . tt Tlrtlt Wath AnDr Troubl .. hoor A7Ot ?CRIOüa ll R7l7-r8 Eff#ri #lsriieo,e*lIub s!!h I l T9lt DisplayTroubleshootingTree T l L i l t l=LJ. L--l ITa --- it TEv Ru*rffifcO 1 o NVWPage O24 oo24 @24 oo24 9032 oo24 t.o24 n 4 n2.4 Lirlt?lt..it \- toresh@rArur5 aIut1 J3t,1 Lop Displaysholdread Initiare 6 mre smples+ 10.oo24 + 60O0.xxOL S l . l Tl=lLDr s €@CI6@@e#ffi S + + 5 n-s l r Ttj ,o Otuu U.T,J,l,,t-t+ i O 5 4 s F +5 ms-l 2317-1 10. Logic Clock TroubleshootingTree L sl \f -Jt +1 l THttttffi$E B?tr+1HHHLE r r r r r r r l +ft$b!too Us-l Url L- l l---,.lLlt 5 a Jtr2cr Llj. -zooms*#ll-+l.l-r \ÄÄ+- zoomsl Pulses 1-t.i1 Ea . fTi1i = b3mtl 2s17-26 Ffi I. J?At7A2 Gig NOI€S Tlu2, a t1u3,Arl Th.-l =rF+ 5vr-r 1o.4ßF RtN*16t12 Figare7-12.RemoteTroubleshootingTree,Option022 2717-28+s-Yml +o.cF 9 0 D- 3 3 8 Start 338r Hffi3 Cauil oN . l 13. GPIBI/O TroubleshootingTree,Option030 2917-30 Öl--.le Hp Porl No O Rev . BPort No V . C D a A27KI Shoulo 8€ CLOSED.SET SAMCorrecn CABLESCORRECTLYGO. to SET S/H Sayitch to TFACK/HOLDMain CIRC-IIT8OAFO. Shouloae Oft-.*l T3t17-329 0 D 3 4 3 HOLD. M€ASURE Voltage AT Hp Fort No -66527 Rev.B I,lPort No . O349O Rev . C To A2 X E Eogeof .AIPLIHOU TRIGGCR!G 8Ap-crtot awrcH To rRcxIore Sigial G€S High Tote JüJ Ffi.f-LRävnG.iir 3 f r a 3490-0 73317-34 Hp Pott No.O349O EXT REF TPC P U TLOW LOW P U T TPCHigh TPC A13CR6 G H LOW G H LOW H I G H L O W TPC+ l 0 16. Ratio TroubleshootingTree A12 A17 A22 A11 3 or A36 A34 A35 A30 A33A31 Rearof Instrument I11 € dRal 111 Jj,i @ @.6r +++F+r@a#Jälslt*tJl=l Rö*et e J l Üä,ierispgglg*@ WEE @D@@@@@ ++++++++f++Evvvvvvvvvvvv + ö EfEU 737 18 a Block Diagram WüE,Ä,li FP?fäREFEBETTCEDESIöTATIOtIS CoKno Lli-@@@@@@@ LelQgIlgt,,a ,,r.i.li Q l A R D OverloadprotectionHovpoverloaoprotectionh T6azt Bootstrap P L I F I E RRuorerzV AA A M P L I F I E R ? z e 1 2 z \+lFeedbackattenuator Z r z l $E?391740 Zl-----l @$Y@ Y 6ö Ff$$**H++ 9i czo1?o70 f IRrr5- l .FrrBll- l Pt lP r f FRoM Sv---*-l---5v Lp/0 Al I MArNcrRcurrassEMBLYo34so 6650r +ov +rovSueeLv +rzV ----d-tr-E +tzv +5V +5v TZV TZV ---b C203 o.33 T7v- t7v CR202 1411742Zero Detect Tf,rl Faq h-,,dnXPf*trt*r+9e . E Rblhb-l- --,1 Ott,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 Figr U3o! ----t 7431744F E R E N Cpeo L a R I T YL O C I C V E R T I N G Rrr Nililji ß?i-,- *$1,sE1iVLlt ri.ä-i.i Ffi ?ääijO * 9sö $ 3 1 6 t Powerfrom -5v---dä-!-- IP*333O*. n i!g!?ifiJjscaNBH 7451 \------lJSiorra Timingcounter I3g.i P .L.iU.B Ll 11Stir lT- Il Äiiiirr lir,il..1 Ilir ! o @ @, = T-T Rua --I xma I3Bl,J-rNne--r LHur R N O N C L E a R R C U I T Röüärrrr-l 3bEi,?# ?5Silij FRoMU6iIäL o Otonrä L8d,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 Storage Il J Pp* @@@@@@@@@@@@E i i + + i + @@@@@@@*späsw 6ffi-l IlJ**io**l.Io,lLffioi Fää-.trto-*tot Soupr-Ezro-r-oirfr Soue.e,.oloieftil-l74917-50 Fs-rLErHoLDpi6il-l \ 9 t r l = l + q rHp PortNo O \ R l 220V Toov T20v 240V Rr,rorHERIg t31,.9uIGgARo Regulator OuiroTOAa Grppry Optrorr Assr Ozot + l 7 v Regulator 5117-s2+3OV Regulator 3OV Regulator BCD Hp Port No.O349O-66503REV . B Roaru4oreil Enable=i33SfTHr-+ Polaritydisplay U4,uro Polaritydisplay EnableA N N E R a T O R Scan Decoder Io*F Figwe 7-27. SchematicDiagram,Display, A3S3l7-s4 Ra FE FA FB R C U I TS I D E = EComponentside 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-sJ +tzv ---fre- +rzv r l +5v --+r5- +5v A6T* .* r*.* *-..uV, cK+ Attenuator OotConverteramplifier + r 7 S7l7-s Figwe 7-29. SchematicDiagram,AC Converter,A6Filter Nc corvepreR ourPUT1 UeacpalpueHuoll3as Drluod O6t9O-20999Ofqlrod 06t90-O999-l Ifl3?5fö*co,c Ei-trFlt Bl,,J.li,i Vrx Norlrr,rn CNn.Norr vH GttornrvsnHounor Rsnxo LN3UUnC l3unos Arn8rg Crlerueqcs Surq6 Urur8erq RelJouoJrV 0vLl6sU3t3NltHO33N3U3J3U Ssoucv 39N lmdNt A22Al ? ? T42242 Fff.ItTrsGooo +l--.r 1M1 ASSEMBLY 3äYäiäT?lTl-?.1..iRxrnrr +l8oyJl,flylo Tl,,t1 SAMPLE/ Hold Triggercircuit Wro 7411142+f-!-l-tr-ourcuaRo Ro ooroorrr coNNEcroRJ6 Ro *.or. ,*r* coNNEcroRJ7 Älll L J J lUr-l 5 a LEoR Eon Fil!Täläf ÄX?,3,.oQ U E N T I ALO G I C Freque Data Multiplexers Logtc Clock Frequencydoublerdelay+-n Outguard 9 \ 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 Guaro Oi---qo + 4 lZfu*-rrot 74317-64 Oo-1 Al2 Hp porttJo,03490-66512 At77 a LO REMoTEnruruurrcraron + sLOCAL/ Remote FLIP- Flop LOCAL/REMOTE RHs tl su31sr93u = r AJtlilo-*il1.iI Lockdelay91 .-Ct FlIto*.- -7u u5 Rns+ \ .,- I \ Onr9nvu0 rdtIlnn-u3x3NBId Ouvngmo l,ssv Z r To A2 C D E F H J K L Hp Port No 14,0o*%ÄäuJJii F8fi8L8 PRbou%u T8 iäB?i If U8 is BAD.OUTPUTWAVEFORMS R c * o lI l r g S46.4 K Will 8E Loadeddown 747l7-68 ?? l9Li9i.-.?Rt\u ? * t o RrreenrroR €l-----19 U l HPorf No . O349O Rev . C Iäo*,j.,lj!,j OriTABu?,.ffiIi O 1 M 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 74917-70 ?.46,f?6Tr%r,i CRs JilOEo o r a o r B orc o r o o t M SDo I N E To S/H Logic COPYRIGHTt973 by Hewlett Packaro DislayLOCAL/REMOTE $ Ection Aage Clocks 5 Lines Ouoorn REcErw FC Company 36.BlockDiagram,3490AGPIBVOCircuits 7117-72 Hp 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 D Orurr9iorrrol98rfiilV TotRnvH ornv H Or6rnrv CucxJ Rvu . Hccr RvrrxrJNorroNnr Rfillj Sosr Ertv Rzr SlinurTt lrstl3ssv 83x3ldlrln$l Uui-,f +sv RaI ,tuf,r 3+r7vS K Tzv--Le f -rzv +Fol O r?,il9Bälooo ?oti.lä?fr?ox?Ei6q*1Eefi&x?ot R lU 1 Port No Uu +sv Ä33aRl?ulF5-ß-olqrroil ETGpr 03490 GLA Ä3aLre a HRsr o ? l 7517-76RfbÄiÄÄ 2 -ixaorJ Or.nroro Orrl assv 2 l Ri------l 432L3-JrIt TLr.sl-------l Hp porr No.03490-66532Rev a 20A%ll?i8*o1lg9lRor-oos---Lrs-r-oosl Lrrx i--=22LEoP-rJi,19#E8ffi0 22fr,.#.!äi$o LsRe--1i-,r 20 loo.tfliloX!3VotoLRMrl Ooorf Iä.ggx3!.zzI I z CvvH r Roro-r-,@Fruox 9I3?ü?591.ZZ IlrIlo Sa-oosl.J?il!.31..Ä.OZ Nzr Rnzr RE+ Hp Port No.oi49o-6653t RevA TT----lR K o CR3 CR5 Rvvr Oo-1--5Wououvngrno +lvvH Vrvossv Ovvx-+ + 5 V r +rzv1O L a T E D P O $ / E RS U P P L I E S + l z v l Ztisv Orur YourLsoroH IsoroH L n OZssv Rorol N0rrcn00urNll SruvdroN OrlsrL0Nvl3 33Nln0ls JzztyostorJzypxJ Jeu ZzlosroTluzvtJzv Inzvlrncrrc Ppv Pue gluzv ot O ö t TlzGszzov Eää3 Ii ä ä iÄää Arnorg LLVrueroerg Clpuaqcs Reslquassv.plgglLoV!Z!oNpueol ÄffiäHi!,äffT1Hiä1s,äTffff-nill-,gl Burur5A8dqdw Toot lsn tosütünlYrnilYw Pulsl Owl v N n l v r r n u r u sLodrlaH ÄJnuf Iutdd!q\Nf OpuntasLqunloC IEIuqcaI L a a J o J d 99.68r 9er rtl9Sttvs ? 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Model3490A

22000139

03490-006(M

03490€6528

o3490-27301

2200.0149

Figure7-3. Sample/HoldAssembly.