Hammond_service_manual_A_A-100_BA_BC_BCV_BV_B2_B3_C_CV_C2_C2_text电路图.pdf

《Hammond_service_manual_A_A-100_BA_BC_BCV_BV_B2_B3_C_CV_C2_C2_text电路图.pdf》由会员分享，可在线阅读，更多相关《Hammond_service_manual_A_A-100_BA_BC_BCV_BV_B2_B3_C_CV_C2_C2_text电路图.pdf（220页珍藏版）》请在收音机爱好者资料库上搜索。

1、f RadioFans.CN 收音机爱 好者资料库 SAFETYNOTICE GreatcarehasbeentaKdninthedestgnandmanufaclureofthiBproducttoassurethatno shockhazardeirfslsonanyexposedmetalpan*.Internalserviceoperationscanexposethe technFcLantohazardouslinevollagesandaccldanfallycaiisethesevoltagestoappear on exposedmetalpartsduringrepaefo

2、refeturningthepfoducito theownerafteranylervlceoperalton, Wugth6AClinecorddirectlyIntoalinevoltageACreceptacle(donotuse anIsolation transformerforthislest)andturntheproducton.Connectthenetwork(asshownbelow)In serieswithaMeKposedmetatpartsandaknownearthgroundsuchasawaterpipeorconduit, UaaanACVOMof5,0

3、00ohmspervoltorhighersenaillvitytomeasurethevoltagedropacross thenetwork.Movethenetworkconnectiontoeachexposedmetalpart(metalchassis,screw heads,knobsandcontrolshafla,esculcheor.etc.)andmeasurethevoltagedropacross the network.Reversethelineplugandrepealthemeasurements.AnyreadingofivoltsRMSor moreJae

4、xcessiveandIndicatesapotentialshockhazardwhichmustbecorrectedbefore returningtheproducttotheuser. TEST PROBE von kZSCUE O 10K .01MF CER*niCRF BYPASSCAP TESTCUPS CONNECTEDTOWOIH URIHGROUND TOtIPOSEDlETUPUflTS RadioFans.CN 收音机爱 好者资料库 TABLE OFCOimilTS SECTIONI GENERAL-ABRIEFDEXCRIPT1DHANDSOMEILLUSTMTIO

5、NS OFTHEFOLLOWINGMODELORGANSANDTONE CABINHS ORGANS PAGE ModvisA,AB 1-1 Mpdfli*BC,BV,BCV.B-22AD- JUSTABLEDRAARS(16AND8)FORPEDALS ONEEXPRESSIONPEDALCONTROLLINGSWELL, GREAT,ANDPEDALS. ONETONE GENERATOR,ONEADJUSTABLE TREMULANT AFFECTINGBOTHMANDALSAND PEDALSEQUALLY. APPROX.3DWATTS,PLUSWATTAGEREQUIRED BYT

6、ONECABINETS. ASILLUSTRATED,APPROX,359POUNDS. SERIALNO,2501ANDABOVEUSEDLARGERWOODWORKCASEDE SieNATEDASAB. SEEBSERIESFORCASEDIMENSIONSANDWEIGHT. MODELAB CABINET SIZE: SAMEASMODELABUTENCLOSEDINLARGERWOODWORK ONETONEGENERATOR,ONEADJUSTABLETREMULAKIAF- FECTINGBOTHMANUALSANDPEDALSEQUALLY. WITHPEDALKEYBOAR

7、DANDBENCH:AS-3/iWIDE, A9-1/2DEEP,46HIGH. MODELBCt(INPRODUCTIONDECEMBER1936TONOVEMBER1942), SAMEASMODELABBUTWITHONEADDITIONALGENER- ATORANDAPPROPRIATESWITCHINGTOCREATECHORUS EFFECT. FINISH:WALNUT. MODELBV! HOMEMODELSBC,BV,BCV,B-2,ANDB-3 FINISH: (INPRODUCTIONAPRIL1946 TODECEMBER1949). SAMEASMODELBBUTE

8、QUIPPEDWITHHAMMONDVTB- RATOPROVIDINGTHREEDEGREESOFTRUEVIBRATO ANDOFFPOSITION,EFFECTIVESIMULTANEOUSLY ON BOTHMANUALS,TOGETHERWITHVIBRATOCHORUS USABLEINTHREEDIFFERENTDEGREESANDOFF. WALNUT. MODELBCVi(INPRODUCTIONDECEMBER1949TODECEMBER1954). SAMEASMODELBCBUTHASHAMMOND VIBRATOAND VIBRATOCHORUS.NONEPRODUC

9、ED,CONVERTEDBY VIBRATOKITADDED AFTER1945- MOOa.B-2 FINISH: SAMEASMODELBVBUTWITHCONTROLSWHICHPRO- VIDEVIBRATOOKEITHERORBOTH MANUALS.ALSO ADDITIONALCONTROLFORNORMALORSOFT 0RALLVOLUME. (INPRODUCTIONDECEMBER1949TODECEMBER1954J WALNUT. MODELB-3(INPRODUCTIONJANUARY1955TO) SAMEASMODELB-2BUTWITHHAMMONDPERCU

10、SSION FEATURE . FINISH: MANUALS : WALNUT-CHERRY. SWELLANDGREAT.61PLAYINGKEYSEACH, PEDAL KEVBOARDl25-NOTERADIATING.DETACHABLE. TONAL CONTROLS;. 9PRESETKEYSANDZSETSOF9ADJUSTABLEHAR- MONICDRAWBARSFOREACHMANITAL-2ADJUST- ABLEDRAWBARS(16AND6)FORPEDALS, EXPRESSION:ONEEXPRESSION PEDALCONTROLLINGSWELL,GREAT

11、 ANDPEDALS, ACINPUT:APPROXIMATELY30TO50WATTS,PLUSWATTAGERE- QUIREDBYTONECABINETS. WEIGHT!ASILLUSTRATED,APPROXIMATELY425LBS l-l MODELB-A(INPRODUCTIOHJANUAKY1938TODECEMBER1938), THIS INSTRUMENTISTONALLYAND ELECTRICALLYSIM- ILARTOTHEMODELBCCONSOLEDESCRIBEDOK THE PRECEDINGPAGES. INADDITIONTONORMALPLAYIN

12、GITCOULDALSO BEPLAYEDWITHROLLSSIMILARTOAPLAYERPIANO, FLOORDrMENSlONSAREALSOSIMILARTOTHEBCWITH ASOMEWHATHIGHERBACKSECTIONTOACCOMODATE PNEUMATICACTION. HOMEMODEL B-A CHURCHMODELSC,CV,C-2,C-3,DANDDV MODELC CABTKH SIZE: FINISH: (INPRODUCTIONSEPTEMBER1939TO JUNE1942). SAMEASMODELABBUTWITHDIFFERENTSTYLE W

13、OODWORK.ONETONEGENERATOR,ONEADJUST- ABLETREMULANTAFFECTINGBOTHMANUALSAND PEDALSEQUALLY, MODELD: WITHPEDALKEYBOARDAND BENCH: 47DEEP,WHIGH. WALNUT. 46-3/4t.T:DE, FINISH; MODELDV: (INPRODUCTIONJUNE1939TONOVEMBER1942). SAMEASMODELCBUTWITHONEADDITIONALTONE GENERATORANDAPPROPRIATESWITCHINGTOCREATE CHORUSE

14、FFECT,SIMILARTOMODELBC- WALNUT. SAHEASMODELDBUTWITHHAMMONDVIBRATO,IN- CLUDING VIBRATOCHORUS.SEEBCV. NONEPRODUCED,KITADDEDINFIELD. MODELCV FINISH: MODELC-2 (INPRODUCTIONSEPTEMBER1945TODECDIBER1949). SAMEASMODELCBUTEQUIPPED WITHHAMMONDVIB- RATO,INCLUDINGVIBRATOCHORUS* WALNUT. (INPRODUCTIONDECEMBER1949

15、TODECEMBER1954). SAMEASMODELCVBUTWITH CONTROLSWHICHPRO- VIDEVIBRATOONEITHERORBOTHMANUALS.ALSO ADDITIONALCONTROLFORNORMALORSOFT OVERALLVOLUME, MANUALS!SWELLANDGREAT,61PLAYINGKEYSEACH. PEDAL KEYBOARD! TONAL CONTROLS! 25-NOTE,RADIATING,DETACHABLE, 9PRESETKEYSAND2SETSOF9ADJUSTABLEHARMONIC DRAWBARSFORFAC

16、HMANUAL;2ADJUSTABLEDRAWBARS C16AND3)FORPEDALS. EXPRESSlONiONEEXPRESSIONPEDALCONTROLLINGSWELL,GREAT, ANDPEDALS, FINISHWALNUT MODELC-3(INPRODUCTIONJANUARY1955TO) SAMEASMODELC-2BUTWITHHAMMONDPERCUSSION FEATURE. ACINPUTlAPPROXIMATELYAOTO60WATTS,PLUSWATTAGERE QUIREDBYTONECABINETS. WEIGKTsASILLUSTRATED,AP

17、PROXIMATELY450LBS. FTNISH:WALNUT-OAK.LATERVERSIONINBOTHFINISHES LESSQDATREFOIL. 1-2 U,S-SOVERWErjTPURCHASED EaUIPMENTMODELGCONSOLEAMDTONECABINET TheModelGconsolesandtonecabinetswerebuiltforthe Government,andnowwillbefoundinusethroughoutthe UnitedStatesandforeigncountriesInchapelsof allser- vices,Off

18、icersClubs,orrecreationservicebuildings. TheconsoleisidenticaltotheModelDexceptfor the decorativewoodworkandprovisionfordetachablehandles. ThetonecabinetModelG-iO)containstwoamplifiersand fourspeakersmountedinahorizontalrow andIselectri- callysimilarCoModelfl-40tonecabinets,buthasare- verberationcon

19、trolunit. MODELC-ZG,C-3G CONSOLESANDIIR-40G TheseconsolesareidenticalinappearanceCotheC-2 andC-3exceptthatamonitor speakerIslocatedonthe lowerlefthandside. ThepreamplifierintheC-2GIsdesignedtooperatethe lonitorspeaker.IntheC-3Gthepreamplifieristhe saBieas in the C-3.Asmallauxiliaryamplifierdrives th

20、emonitorspeaker-InbothModels,B+voltagefrom thetonecabinetisrequiredtomakethemonitorspeaker operative. ProducedfromJune I9iltoNOVEMBER1944,TheHR-40GisidenticaltotheHR-40exceptthatitis equippedwithastandard6conductorcablewhichmustbe usedinconjunctionwiththeC-2Gconsole. C-2GinproductionJune1952toMarch1

21、953, C-3GinproductionJanuary1955to CONCERTMODELE MODELEl(INPRODUCTIONJULY1937TO JULY19A2- CABINETWITHPEDALKEYBOARD:57WIDE,46-7/8HIGH, SIZE; 47-5/8DEEP. FIMSHt MANUALS; PEDAL KEYBOARD: TONAL CONTROLS: WALNUT SWELLANDGRliAT,61PLAYINGKEYSEACH. 32-NOTE,CONCAVE,RADIATING,DETACHABLE,BUILT TOAGOSPECIFICATI

22、ONS. 9PRESETBUTTONSAND2SETSOF9ADJUSTABLEHAR- MONICDRAWBARSFOREACHMANUAL:FORPEDALS-4 NUMBEREDANDLABELEDTOEPISTONS2ADJUSTABLE DRAlsARSQ.A-40:(INproductionOctober1935toOctoberi947) CABINET SIZE; FINISH: WEIGHTS OUTPUT! ACINPUT: 26-1/2WIDE,28HIGH,19DEEP BLACKLACQUER. 155POUNDS iOWATTS-2AMPLIFIERS,4-12SP

23、EAKERS APPROXmrELY360WATTS, ANON-DECORATIVE,DOUBLE-STRENGTHCABINET,DE- SIGNEDFOR USEINBANKSOF FOUR ORMORE,IN LARGEINSTALLATIONSWHERETHECABINETSARE CONCEALED. MODELA-40 TONECABINET 1-5 MODELB-40!(INPRODUCTIONNOVEMBER1936TODECEMBER19A7 CABINEJSIZE:36WIDE,36HIGH,28-1/2DEEP FIMSH WEIGHT; OUTPUT! ACINPUT

24、: WALNUTSTAIN 225POUNDS f*QWATTS-2AMPLIFIERS.4-USPEAKERS. APPROXIMATELY360WATTS- ASEMIDECORATIVE,DOUBLE-STRENGTHCABINETDE SIGNEDFORUSE IKDlVlDUALLyORINGROUPS. THEB-40ISFOUNDDESIRABLEFORMANYCHURCHES AmFORLARGEINSTALLATIONS,FORITMAYBE USEDAPPROPRIATELYINAUIOST ANYSETTING, MODELB40 TONECABINET MODELC-2

25、0! M0DELCR-20; MODELCX-ZO: (IKPRODUCTION1937TOMARCH192). (IKPRODUCTION1939-1942)EQUIPPEDWITH REVERBERATIONUNIT. (INPRODUCTIONJANUARY1939TOMARCH1942) EQUIPPEDWITHROTORTREMULANT.SEEMODEL CXR-20FORPICTUREOFTHISFEATURE. MODELCXR-20!(INPRODUCTIONNOVEMBER1939TOMARCH1942) EQUIPPEDWITHROTORTREMULANTANDREVER

26、BER- ATIONUNIT. DIMENSIONS:29WIDE,53HIGH,iB-I/4DEEP. FINISH WEIGHT: OUTPUTS ACINPUT: HATCHEDAMERICANBUTTWALNUTANDANTIQUE BRASSHARDWARE, 153POUNDS 20WATTS,1AMPLI?TKR,2-12SPEAKERS APPROXIMATELY200WATTS. MODELC-20,CX-2a,ANDCXR-20TONECABINET 1-6 MODELC-40i(INPRODUCTIONJimE1936TODECEMBER1937) CABINETSIZE

27、:38WIDE.71HIGH,27-1/2DEEP, FiNISHi WEIGHT: OirrPUT: ACINPUT; WALNUTSTAIN 313POUNDS UOWATTS-2AMPLIFIERSANDh-12SPEAKERS APPROXIMATELY360WATTS. THEC-iOCABINETHASAWIDEVARIETYOFAPPLICATIONS. ITISESPECIALLYADAPTEDFORUSEINENCLOSURESWHERE THEINDIRECTPROJECTIONOFSOUNDISDESIRABLE.VERY OFTENTHECEILINGANDFLOORA

28、RE THEONLYLIVEOR REFLECTINGSURFACESANDTHIS TYPECABINETMARESUSE OFTHERE, THEC-AOCABINETISUSEDINDIVIDUALLYORINCROUPS OFTWOORMORE. MODELC-40TONECABINET MODELD-ZO: MODELDX-20: MODELDR-20! (INPRODUCTIONOCTOBER1937TOMARCH1952), TONALLYIDENTICALWITHMODELC-20,THED-20 FILLSANEEDFORANINEXPENSIVECABINETFOR USE

29、IN AWIDEVARIETYOFINSTALLATIONSV.TIERE DECORATIVEQUALITIESAREASECONDARYCONSID- ERATION. (INPRODUCTIONOCTOBER1938TO JUNE1942). EQUIPPED WITHROTORTREMULANT. (INPRODUCTIONAUGUST1939TOMARCH1952). EQUIPPED WITHREVERBERATIONUNIT. MODELDXR-ZOl(INPRODUCTIONAPRIL1939TO JUNE1945). EQUIPPEDWITHROTORTREMULANT AN

30、DREVER- BERATIOKUNIT. CABINETSIZE!28WIDE,56HIGH.16-3/4DEEP. FINISH: WEIGKT! OUTPUT: ACINPUT! FACEANDSIDESOFAMERICANVALNUT. 149POUNDS-D-20:171POUNDS-DR-20; 178POUNDS-DXR-20, 20WATTS-1AMPLIFIER,2-12SPFjUCERS APPROXIMATELY200 WATTS. 1-7 MODELER-20;flNPRODUCTION MARCH19A7TODEGEMBEK1950) CABINET SIZE: FI

31、NISH: WEIGHT: OUTPUT: ACIKPUTt 31WIDE,38-3/4HIGH,IBDEEP, WALmJT, liiPOUNDS. 20WATTS-1AMPLIFIER,2-12SPEAKERS APPROXIMATELY200WATTS. THEER-20TONECABINETISELECTRICALLYEQUIVALENTTO THEDR-ZOTONECABINET.HOWEVER,THEWOODWORKIS DESIGNEDFOR USEINHOMESWHEREAMOREARTISTICCAB- INETISPREFERRED. MODELER-20TONECABIN

32、ET ilii iiiii MODELFR-40 PRODUCTIONJANUARY1948TODECEMBER1957) CABINETSIZE:32-15/16WIDE;39-3/16HIGH;28-3/8DEEP. FINISH; tClGKri OUTPUTI ACINPLTT: WALNUTSTAIN F-40-20aLBS.FR-40-228LBS- 40WATTS-2AMPLIFIEHS,4-12SPEAKERS APPROXIMATELY300WATTS. MODELF-40ANDFR-40TONECABINET THEF-40REPLACESTHEB-iO TONECABIN

33、ET-DIMENSIONSOF THEWOODWORKHAVE BEENALTEREDSOTHATAREVERBERATION UNITMAYBEACCOMMODATED.WITHTHEADDITIONOFTHE REERBERATIONUNITITISDESIGNATEDASFR.-40. 1-8 MODELPR-40 MODELQR-40 MODELPR-40!(INPRODUCTIONFEBRUARY1939) CABINHSIZE!31-1/2WIDE;37-1/2HIGH;18DEEP FINISH: WEIGHT! WALNUT-OAK-CHERRY 130POUNDS HODfi

34、LaR-40:(INPRODUCTIONJUKE1939) CABINETSIZE!31WIDE;36-5/6HIGH;17-1/DEEP WElGHTi121POUNDS EQUIPPED WITHTWO15SPEAKERSFORBASSTONESANDTWO iZSPEAKERSFORTHE TREBLETONES.THEYPROVIDETHREE DIMENSIONAMPLIFICATIONWHICHCREATESABEAUTIFULRE- VERBERATIONEFFECTINSTEREO.THESECABINETSFEATURE THENEW ANDIMPROVEDHAMMONDRE

35、VERBERATIONCONTROLFOR BOTHBASSANDTREBLETONES.CONVENIENTOUTSIDECONTROLS MAKEITEASYTOCHANGETHEDEGREEOFREVERBERATIONFOR EACH. THEQR-40ISELECTRICALLYSIMILARTOTHEPR-40BUTWITH ITSUTILITYTYPECABItfETISONLYUSEDWHEREAPPEARANCE ISNOTACONSIDERATION,SUCHASINTONEANDREVERBERATION CHAMBERS. ACINPUT: OUTPUT: 220WAT

36、TS 50WATTSE.I.A. THETREBLE DIRECTSPEAKERISNORMALLYMOUNTEDINTHETOP. INANUNUSUALINSTALLATIONUTTERETHECEILINGISVERYLOW ORCABINETSARESTACKEDORRADIATIONISOTHERWISERESTRICT- ED,ITISPOSSIBLETOMOVETHISSPEAKERTOTHEHOLE PRO- VIDEDINTHEFRONT.THEMETALDIFFUSERINFRONTOFTHE SPEAKERMUSTALSOBEMOVED,ANT)THE WOODENCOV

37、ERMUSTBE ATTACHEDUNDERTHETOPTOCLOSETHEHOLE. I-II 1-12 THEORYOFOPERATION TheconsoleoftheHammondOrgancontainstheentiretone-producing mechanism,whichiscompletelyelectricalinoperation.Withinitare producedailthetonesandtonecombinationsoftheorgan.Theelectrical wavesaremadeaudible,asmusic,byoneormoretoneca

38、binetscontaining suitableamplifiersandloudspeakers.Theblockdiagrams(Figures13and 14)showthechiefcomponentsoftheinstrument. Electricalimpulsesofvariousfrequenciesareproducedwithinaunitknown asthetonegeneratorcontaininganumberofphonicwheelsortonewheels drivenatpredeterminedspeedsbyamotorandgeararrange

39、ment.Each phonicwheelissimilartoagear,withhighandlowspots,orteeth,onits edge.Asthewheelrotatestheseteethpassnearapermanentmagnet,and theresultingvariationsinthemagneticfieldinduceavoltageinacoil woundonthemagnet.Thissmallvoltage,whensuitablyfiltered,produces onenoteofthemusicalscale,itspitchorfreque

40、ncydependingonthenumber ofteethpassingthemagneteachsecond, Anoteoftheorgan,playedoneithermanualorthepedalkeyboard,generally consistsofafundamentalpitchandanuiiiberofharmonics,ormultiples ofthefundamentalfrequency.Thefimdamentalandeightharmonicsavailable oneachplayingkeyareindividuallycontrollablebym

41、eansofdrawbarsand presetkeysorbuttons.Bysuitableadjustmentofthesecontrolstheplayer isenabledtovarythetonecolorsatwill. Theresultingsignalpassesthroughtheexpressionorvolumecontroland throughthepreamplifier(wherevibratoisintroduced)tothetonecabinet. Herereverberationisaddedelectricallyandapoweramplifi

42、erfeedsthe signalintoloudspeakers, DESCRIPTION AHammondOfganconsole(Fig,2includestwomanualsorkeyboards:the lower,orGreat,andtheupper,orSwell,andapedalkeyboardof25keys- Theconcertmodelshavea32-keypedalboardand areconstructedtoA.G.O. specifications.Variouscontrolshaveappearedondifferentmodels.Theop- e

43、rationofthesecontrolsiscoveredinthefollowingparagraphs, STARTINGTHEORGAN II FIGURE1 Tostarttheorgan,holdthestartswitch(Fig,1) inonpositionforapproximatelyeightseconds. Stillholdingit.pushtherunswitchtoon pos- ition.Afterleavingboth switchesonforaboutfour seconds,releasethestartswitchtoreturntoits no

44、rmalposition. Iftheconsoleisverycold,orifafrequencyreg- ulatorisused,itmaybenecessarytoholdthe startswitchslightlylonger. 1-13 1-12 THEORYOFOPERATION TheconsoleoftheHammondOrgancontainstheentiretone-producing mechanismwhichiscompletelyelectricalinoperation.Withinitare producedallthetonesandtonecombi

45、nationsoftheorgan.Theelectrical wavesaremadeaudible,asmusic,byoneormoretone cabinetscontaining suitableamplifiersandloudspeakers.Theblockdiagrams(Figures13and 14)showthechiefcomponentsoftheinstrument. Electricalimpulsesofvariousfrequenciesareproducedwithinaunitknown asthetonegenerator,containinganum

46、berofphonicwheelsortonewheels drivenatpredeterminedspeedsbyamotorandgeararrangement.Each phonicwheelissimilartoagear,withhighandlowspots,orteeth,onits edge.Asthewheelrotatestheseteethpassnearapermanentmagnet,and theresultingvariationsinthemagneticfieldinduceavoltageinacoil woundonthemagnet.Thissmall

47、voltage,whensuitablyfiltered,produces onenoteofthemusicalscale,itspitchorfrequencydependingonthenumber ofteethpassingthemagneteachsecond. Anoteoftheorgan,playedoneithermanualorthepedalkeyboard,generally consistsofafundamentalpitchandanumberofharmonics,ormultiples ofthefundamentalfrequency.Thefundame

48、ntalandeightharmonicsavailable oneachplayingkeyareindividuallycontrollablebymeansofdrawbarsand presetkeysorbuttons.Bysuitableadjustmentofthesecontrolstheplayer isenabledtovarythetonecolorsat will. Theresultingsignalpassesthroughtheexpressionorvolumecontroland throughthepreamplifier(wherevibratoisint

49、roduced)tothetonecabinet. Herereverberationisaddedelectricallyandapoweramplifierfeedsthe signalintoloudspeakers. DESCRIPTION AHammondOrganconsole(Fig.2includestwomanualsorkeyboards:the lower,orGreat,andtheupper,orSwell,andapedalkeyboardof25keys. Theconcertmodelshavea3Z-keypedalboardand areconstructedtoA.G.O. specifications.Variouscontrolshaveappearedondifferentmodels.Theop- erationofthesecontrolsiscoveredinthefollowingparagraphs- STARTINGTHEORGAN FIGURE1 Tostarttheorgan,holdthestartswitch(Fig.I) inonpositionforapproximatelyeightseconds. Stillholdingit,pushtherunswitchtoonpos- itio