HP-Service-Note-330B-3E 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: Glenn Robb This document is for FREE distribution only! RadioFans.CN 收音机爱 好者资料库 330B-3E SettingAmplifierGains-Asignalsource capableofdeliveringatleast10voltsfrom 20cp

2、sto20,000cpswith notmorethan 1.0% distortion.Avoltmeterwith aflatresponse overthissamerangeisalsorequired.See listingofrecommendedvoltmetersunderOut- put. DistortionCheck- Apurewavesource,such asther5jJModel 206A,coveringtherangefrom 20to20,000cpswith notmorethan 0.1% distortionisrequired.Asignalsou

3、rce coveringthisfrequencyrangewith notmore than1.0%distortioncanbeusedprovideda purewavefilterisusedbetweenthissource andthe 330undertest. SecondHarmonicAttenuationCheck- Asignal sourcecoveringtherangefrom40 to 40,000 cpswith notmorethan 1.0%distortionsuch as1ifJModels200AB,200CD,or202Cwill berequir

4、ed. FrequencyDialCalibration-Frequencymeas- uringequipmentcoveringtherangefrom20 to 20,000cps.Anyelectroniccountersuchas r5jJModel 521A,522B,5238,524A,or524B ismorethanadequate.Frequencystandards suchas.5iJModels100A,1008,100Cand1000 whenusedinconjunctionwithanoscilloscope arealsoSUitable. NOTESERVI

5、CE PowerSupplyVoltageRegulation- Adcvolt- metersuchasModel412Aor410Bisre- quiredalongwith ameansofcontinuouscon- troloftheinputlinevoltagetothe300B undertest. InternalVoltmeterCalibration- A 400cps signalsourcesuchasr5jJModel 738AR (was Spec.23678)VoltmeterCalibratordelivering 300voltsatnotmorethan1

6、%distortionis recommendedforfastest,mostconvenient calibrating.Conventionalsignalgenerators, monitorvoltmeters,andprecisionattenuators mayalsobeused. FrequencyResponseChecks- Asignalsource coveringtherangefrom10cpsto 100 kc (60 kcfora330Cor330D) with notmore than1.0%distortion.Thissourceshouldbe cap

7、ableofdeliveringenoughoutputvoltage between1000cpsand100 kcforcheckingthe 300voltrange.Inlieuofeq!Jipmentfor makingquantitativetests,responseon 100 and300 voltrangesmaybeadjustedwith a squarewavesignalandanoscilloscope. lMODELS 330B, 330C,) Figure1.FrequencyResponseTestSetup 00645-3 4 w w o tJj I W

8、trl ! IlinER) !SETLEVEl . 1!IillJ 0IO:.STOIl=;-;TIOll! _0_ ALLCAPACITANCEVALUEStlII!J.p. UNUS$OTH(RWISNOnO AL.LRSIST,C(VALUESINOHMS iJHUSSOTHftWIStNOTED II(1000OHMS MIMGOH. .ADJUSTEDATf:ACTOItYFOR TUlJRFUltMANCE AVERAGf 1ALlJ(SHO.,.RT .IEONITTEO .CHASSIS o1N-NfL.CONT.! IICIIWOIIVIII:ADJUST_NT CONDIT

9、lONSOfACVOLTAGEMEASUREMENT ITMRU 8SAMEASDCCONOtTlOS ,VOLTAGU .MEASURED BETWEEN INDICAtEDPOINTS WITH A1000 OHMs/VOLTOttatHERAtMf:Tf:R ALL VOLTAGESAU V6 6AC7 1SEAVELI A 5K 5 IZ Kt A 330K e16 100 20 0 1500 A32 15M A3. lOOK 5 ;/. o CI3-4SECTiONS 53511PERSECTV 5 6SJ7 OZI A2BA A . CONO;TIQroI;OFDCVOLTAGEM

10、EASUREMENT UNEVOLTAGEAT115/230VOLTS.50/601 ZNPUTIAT :5IRANGEl ATI!.IJ 4INPUT SELECTORATIA 5IFREQUENCV!U100 6.FUNCTIOfrtSELECTORAT 1YOLTMETURANGEAT1300Il.s.IOlT5! 818ALAHCEI.uMAI(IMUMCLOCKWISEPOSITION 9VOLTAGES MEASURED 8ETWEEIrll INDICATED POINTSANDCHASSISWITHVOLTMETERHAVING ANINPUT REStSTACEOF122 M

11、EGOHMS (-tlp-MODEL.108. -.!.Q.!.L.- )!QOOQQ ,I R26R26A-7.78RJIRJIA.7.98 R27,R27A RJORJOA78JK R28R28AR29fR29A78.2K R2eARJOA R29R30 R26A.R27A RUR27 1-225 l- CJ I W SCHEMATICDIAGRAMOFMODEL330B AMPLIFIER8FILTERSECTION d II) (Jq en -;J tK IAM.S. VOLTSI 56ABCD.B. o .,.300 C25 o7-45 o b +225 IC CO I:l:. S6

12、A , 070 2K * C23 C24053 5-2047 3161( = r?J OFF =S5y O IIIe:V i JIII V7 5Y 3 -GT -=III IT8 70 7.,.22$ 6-V8V9 72 +2 2II o tJj I tI:l -0 r IOSCILLOSCOPEI 074 6200 BLACK WHITE PRI1ll WHITE BLACK BROWN PR,2 BLUE PRI.! IfLFSR73 6200 C3150fLF g BLUE TRANSFORM ERDETAIL C30 1 IIV 50-000-, IBROWN:J PRI1l2 r 2

13、30V rooo, 1 +230 060 22 flOO THISCIRCUITIS BASICALLYCORRECT,BUTSMALLDIFfERENCESMAYEXIST FORANYPARTICULARINSTRUMENTCQMPARISIQNANDCROSS-CHECKINGWILL ENABLEIDENTIFICATIONOFNECESSARYPARTS -1.7 -r-r_ C260 40J.LF 066 220K+- 065 56 I C2, .lfLF 064 22K C26 .5/ SCHEMATICDIAGRAMOFMODEL3308 POWERSUPPLYaVOLTMET

14、ERSECTION = I 1cI8c 044 33 -2045 . F22O/ 043 25K 220K 040 33 042 VII G1lK = 2 , f/50 056 2200 V6 054 M 055 2M V34)v5 L;- 1 2O/ .oe2jJf 077 k CW RS21.5 2.163MC22 o o C) CJ1 I t OJ OJ o ttl I OJ tI:1 ALLCAPACITANCEVALUEStNfLfLF UNLESS OTHERWISE NOTED. ALLRESiSTANCEVALUESIN OHMS UNLESS OTHERWISE NOTED.

15、 IK -1000OHMS. til-IMEGOHM .ADJUSTED AT FACTORYFOR OPTIMUMPERFORMANCE CONDITIONSOfACVOLTAGEMEASlJRlENT l.THAUeSAME AS DC CONOITlCNS. 9.VOLTAGES.MEASUREDBETWEEN INDICATEDPOIHrsWITH A1000 OHMs/VOLTORBETTERACMETER. ALLVOLrAGESRS. -l!.Q.I.U- RANGE 500K-1.4Me t.4-3.8Me 3.5-I 0IIIC 8.5-Hille ZO-60MC POSIT

16、ION I 2, . , OUTPUT (TOS2RFTERMINAL) CONDITIONS OFOC VOLTAGE MEASUREMENT ILINEVOLTAGE AT115/230VOLTS.50/1000V tliNPur!AT 1.1RANGElATlRTI 4INPUT SELECTOR AT!fJ 5.IFREQUENCvIAT100 6.FUNCTIONSELECTORAT 7.VOLTMETER RANGEAT1300R.VOLTS.I 8.ISALANCEIATMAXIMUMCLOCKWISE POSITION. 9VOLTAGES MEASUREDBTWEENINDI

17、CATED POINTSMOCHASS$WITHVOLTMETERHAVING ANINPUTRESISTANCEOF122MEGOHMS. _(pMODEL4108) -, IR FDETECTORUNITI I (3300ONLY)I CZL6RIL7I II I02I 300 Iel-300.l.:le,l ee 01Bf1220210J/J.FI II I VI:OI 6H6I I I -RECTIFIERI -I IL-iNpUTAMPLIFlER(SELECnVEl-R26fR2611-7.78M,R3IfR3111-7.98MI R2ifR2i1l -R30IR3DA-i83KI

18、R FINPUTI INPUT (TORF INPUT TERMINAL) o o 0- (Jl I OJ IMETERI III ISET-LEVELI 10lSTORTlONl R28fH2811-R29fR2911-i8.2K I AVERAGE VALUE SHOWN. PART * t225 MAY BE OMITTED. 0e - CHASSIS 22.100 *o-IPANELCONTROLI IR F DETECTORUNITI -m BALCONT2lI S4BJ21,E a) ! IAF-RFI IAFINPUTI MODEL330C/O AMPLIFIERaFILTER

19、SECTION THISCIRCUITIS BASICALLYCORRECT,BUTSMALLDIFFERENCESMAYEXIST FORANYPARTICULAR INSTRUMENTCOMPARISIONANDCROSS-CHECKINGWILL ENABLEIDENTIFICATIONOFNECESSARYPARTS d : (D co Id CD . o r IOSCILLOSCOPEI RT 6200 BLACK PRI!Z BLACK ILACk-RD PRI.#! BLACK-YELLOW 11lLACK- :GRWi ILACKRED 8uaGllENi PRI!Z C30

20、1 115V C3IOOJLF :;g TRANSFORMERDETAIL IPRI.!-I 230VBLACK-EU.OW 1000V,- 15O-IOOO.W . . R 060K .LC.,.,00 floo+0I C21B.L 4O/-F.,. +150 +200 e2lCiao I C3. -a R 10. R.7 3llO R 220K VOLTAGEREFERENCE TUBE R63VTVMAMP. Z7GAINAOJ R., I, R62 IOO R. oa. L-.1-=-+-l!- C, .IILF -1.7_.,.,._., FREDR AOJ (.03-30V) I!

21、 I.%.1 sop.F=ZDILF IPOWERSUPPLY REGULATOR RS7, rl-;.-;-.- iJ REGULATORIR71 VB0. ROO I 6Y6G= lOOK +225., -, T CI C m F L /LF R.3R.TJILF R.O ,. n 220K R. VIO 3 - t, F2 00 1I-6H rtftS-: . R lOOk R lOOK CI7AI_ 40/- C31.L .FT C. . . 15.8It 113 f , Y7 -0 41003% 00. 0 tlDDI .2008100Y. .3008 fR9 2201( RSIf3

22、5R50fJ70R . L.-Cl8BtlSAc170.L.7t r-20ILF TZO/LTZ/LFTZOILF II I R39* 250 1 e22.D82JJF 30V 7 ,t rf=8 7 -225 6.lVII ft TIt (MODEL33ClD ONLY) I 1 00; VOLTMETERAMPLIFIER- JOOI8rI R RnAOJ .,.(IOOVRANGE):.1 e20e21r-=-l-,- R1.7I., II I M R7. FREDRESPIl. AOJ It 300VRANGE) C23CUR,3 ,-20 47316K - OFF _S.:?IIIE

23、.t ! F1) III RECTIFIER V75Y3GT It)VI ,H111-, 8 0- CJI I ():l SCHEMATICDIAGRAMOFMODELS330C/D POWERSUPPLY8VOLTMETERSECTION THISCIRCUITISBAStCALLYCORRECT,BUTSMALLDiffERENCESMAYEXiST fORANYPARTICULARINSTRUMENTCOMPARISIONANDCROSS-CHECKINGWILL ENABLEIDENTIFICATIONOFNECESSARYPARTS ():l ():l o to I ():l tI:l .