Baldwin Interlude 124 Series Technical Manual Download Page 72

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Summary of Contents for Interlude 124 Series

Page 1: ...TECHNICAL ANUAL BALDWII ORGANS BALDWIN PIANO OBGAN CO CINCINNATI O...

Page 2: ...Anplifier Board Wlrlng Diagram 30 Expression Pedal Asseuibly Plctorlal 31 Reverberation Theory 32 Reverb Unit Photo Description 33 Rhythm Voice Board Assembly Pictorlal 34 Rhythn Voice Schematic 35 R...

Page 3: ...l 94A WonderChord Schematic Revised 95 WonderChord Control Head SchenatLc 96 WonderChord Master Chart 97 WonderChord Transistor Functions MODEL 124AC BC ORGANS 98 Mode1 L24 AC BC General Information 9...

Page 4: ...al Rhythm Volce Board Schenatic 059783 Tone Color Board Wlrlng Diagran N124 060238A Porder Circuit Diagran 124R C579 323 Peda1 Sustaln Board Assembly 372 Pedal Sustain Board Assembly 372A Peda1 Sustai...

Page 5: ...d 124B only Rhythm Patterns Waltz Fox Trot Swing Rock Latin On Off Chord Sustain Rhythm Only Tempo Continuously Variable Rhythm Volume Continuously Variable Downbeat Indicator Light Major Minor Bar Ca...

Page 6: ...y 1ow C on PEDAL Keys to be played are indicated with arrows on Drawing D579 376 Set the VoLIIME LE rEL to set the voltage across the 12 speaker to 6 0 V RMS It should be noted that the above level se...

Page 7: ...REMOVE SCREWS W TH UPPER tID BUSHINGS TO GU IDE S IOTS RAISE TONE COI OR FIG I _ ORGAN TOP VIEW UPPER tID REMOVED...

Page 8: ...ISE SOLO I IANUAL 5 PHONE JAX ASSY UNINSULATED IVIOUNTING REI IOVE FOUR 4 SCREI IS TO REI IOVE ACCOIVIP BASS KEYCAP ACCOI IP Sl lITCH ASSY Sl lITCH COVER REF1OVE FOUR 4 SCRE IS TO REI IOVE ACCOIIIP TR...

Page 9: ...MUSIC DESK PTEXIGTASS c 501 053450 BACK PANEL Dr 57 0s3597 F IG 3 ORGAN BACK V EW REVERB VOTUME CONT ROt coNTROL POWER CORD 8508 0276s8...

Page 10: ...ASSY PEDAL ACCOI IP FILTER BD ASSY I24A AC 1C RHYTHII V I CE REVERB LEVEL SET POTENTIOI ETER lOOK OH 4S VOLUIVIE LEVEL SET POTENTIO IETER 1OOK OHivlS PREAIVIPLIFIER AND REVERB PREANP BOARD ASSY BOARI...

Page 11: ...TAB SWITCHES DISASSEIIBLY ITEI4 DESCRIPTION PART NUMBER Sl lITCH TAB ASSY I4OUNTII IG HOLES PEDAL TO E COLOR SWITCH BOARD ASSY 8506 053234 CONTACT l lIRE A506 037787 CONTACT SPRING A506 033399 PEDAL...

Page 12: ...as in Step 3 b Tab mounting block may be removed by removing four 4 screws from underside of tone color assembly Fig 2 access to the swiEch contacts may now be accomplished c Tab may be removed by re...

Page 13: ...e 11 Pedal Clavler Flgs 79 2L 27 30 a Follow Step 1 b Remove cover from pedal switches and remove leads to pedal cireuit board Figs 21 30 c Re6ove stx 6 screr s securlog clavier to bottom board tilt c...

Page 14: ...048703 NOTE GEN BD SCHEM TIC MOUNTED WITH ONE EACH 52267 6 4BLOX TYPE 7 R H SCREW Yz Ls oo r l r Bsoo o5t9e6 8500 o529s8 249 O 2731 s2267 6 4BLOX szozc 4 3scPL A 41 O 8t l I T NuT 10 24 TIO FLATWASHER...

Page 15: ...261 6 4BI OX TYPE 7 R H scREw 7y uq o 8500 05t926 8500 o52956 D t E 2o 7 M 5 lnsoT o Lrru gr8 c B dl cl lz AZ49 OZZ731 o lr J50 2 e A516 rT lZ lB REQ q r Y OF tT l6wl IREQ C N 15 303 D r r 4 2 13 15 i...

Page 16: ...B 18 SOLO W O 24 8 ACC W O 4 24 13 14 15 16 17 c c D Df8 E AtL DRAWIT GS AND SPECIFICATIOl S ARE ANO REMAII TO IT ATL SPECIFICATIOTIS ARE COIIFIDEI IIAI AI D IIIEY ARE SEI I t 0 DRAWIIIGS SpECtFtCAIto...

Page 17: ...18 39 D 29 3 66 40 DX 31 1 13 41 E 3 29 63 42 F 349 23 43 p 3 6 9 99 44 G 392 OO 45 Gx 415 30 46 A 4 40 OO 47 AX 466 1 6 4A B 49 3 88 Ne loTE Frecpency znd au 5 49 c 5 23 25 lst D I V 50 c 55 4 37 51...

Page 18: ...R BD ASSY DX E JUMPER ON 124Aa Ac AccoM P T FILTERS o TSTr 1 o csor osgr at R16 R17 R29 i I l eoa 1 E r PEDAL FILTER c501 o53535 AMP 05345 PEDAL I sw A ssY L___ I cs 79 372 GEN O N GENERATOR BD ASsY t...

Page 19: ...o48703 V IBRATO AC CESSORY BOAR D csol o53439 PEDAL FILTER AMP LIFIE R c5 EDAL TAB PEDAL SWI TC HES L OU D SOFT TO AL L KE YSW ITCH DECKS REED ST RIN G ACCEN T 16r SAXOPH T ONE DEEP BRIGHT PREAMP c501...

Page 20: ...OR The vibrato oscillator located on the accessory board consists of a Twin T r oscillator circuit Q5 and Q6 adjusted Eo produce a 6 4H2 6 volt P peak to peak vibrato ouEpuE signal Vibrato voltage app...

Page 21: ...D SUBASSEIYIBLY A A 4 GENERATOR BD SUBASSEIYIBLY G G 3 GENERATOR BD SUBASSEI IBLY F F 2 GENEMTOR BD SUBASSEI IBLY D E 1 GENERATOR BD SUBASSEMBLY C D ACCESSORY BD ASSY L24A ONLY 124AC B BC PART NUMBER...

Page 22: ...N 6 J UMPER WIRE 0N B f c SoO O4BTOZ SUB ASSEM ONLy B onRD c il j I I R6 l f r r ffi rl II h tll ffil I 19 lli 1 q I t fr llr lt Tq fil i LJ ll l 1 tttt lllllrtrffiffiffimr lll l l lll UTSIT i i l utr...

Page 23: ...o uJ c A6 a t e f S o do j ITEM DESCRIPT ON PART NUMBER VARIABLE INDUCTOR 6OOMH I 2H B5t 2 047800 2 SILICON TRANSISTOR NPN A5l4 033338 FREQUENCY DIVIDER A5t4 04780 RES I STOR PACK A509 048638 2 II TE...

Page 24: ...BLACK TO VIBRATO CUT OFF S lITCH 2 COND SH BLK l0 VIBRATO BUSS TO GENERATORS ORANGE l l FROM VIBRATO CUT OFF Sl lITCH 2 COND SH RED 12 GROUND BLACK l3 TO SOLO I6 t l O DIVIDER I IHI TE t4 SOLO I6 hl...

Page 25: ...K supguY GND 2of ctRcrJrT PERrAturtJr To Hoo Ac B BC o LY I GND FEOM POWER SUPPLY Rsp cso t os3 sa RZB NO E4 t__ soR cAsSETrE RECDRDER Rjo 25 lL Sut NCTER i I ALL RESISTORS ARE UzW IO o UNLLSS OTHER I...

Page 26: ...trip Initially the sma1l area of contact offers a high resis tance to the tone generator signal Further depression of the key gradually lessens the resistance giving aItgradual on t effect as the area...

Page 27: ...ER HEADER FRONT VI EW GRADUAL CONTACT FRONT VIEW DIRECT CONTACT REAR VI EW Fig 9 t9 4506 039224 SILVER coNTACT WIRES SILVER H EADER BAR ISOLATION A506 027595 PHENOLIC SWITCH BOARD slG NAL I N PUTS SIG...

Page 28: ...2 8250 026387 KEY ASSEMBTIES KEY ASSEMBLIES C D E PART NUMBER t 8250 026379 G 8250 026380 Key Chonnel Port No 8250 024146 A Keycop Attoching Screw Port No 52246 10 24 10 8250 026381 B Wide C 8250 0263...

Page 29: ...UAL RAISED DESCRI PTION 4 PHONE JAX ASSY IIUTED REED BOARD ASSY 1248 BC ONLY SOLO SI IITCH ASSY Sl lITCH COVER REI IOVED 12 NOTE Sl l BD ASSY TYPICAL PART NUI IBER 8500 053451 c500 053966 D500 053191...

Page 30: ...3 oN tro E w o ro 30 Tunugo oilg 0 CBoeA wlRE ACCOI4 ANIMENT l 1o IHRU 6 oN l o To 30 THhU t oN g D 5 Souo Heaoee Cnar E C5 O O53 96 6 Accorrp HEAoER CAoLe Cf oe o533o OC NERATOR SoLo HEAoER Cd NEc7r...

Page 31: ...filters are employed Solo filter outputs are selected by stop tab switches and applied to Ehe appropriate Accent tabs and then applied to the preamplifier Stops can be used singly or in any con ceiva...

Page 32: ...I 6 FLUTE TAB SW ORANGE 1t IIAII KEYSI lITCH BUCKING VOLTAGE OUTPUT RED 1 2 TO I 6 CELLO TAB St J B ROl IN 3 TO I 6 SAXOPHONE TAB SI l GREEN t3 I6 I J O INPUT FROM SOLO DIVIDER B ROWN 6 TO B CLARINET...

Page 33: ...ND c508 05328 t t22V cls R2b ZV OK NO TES I ALL RESIETORS ARE IZV IO IO UNLESS OTHERUTISE SPEC FIED A D C YOLTA GE I4EA5U RE Y ENT S TAKEN WITH A YOLTMETEB ao Ooo pEAYoLl oR HIGHEB FROI PO NT INDICATE...

Page 34: ...thm Eliminator circuit located on the Tone Color preamplifier board initlally grounds the Rhythm output and prevents the Rhythm voices frorn feeding to the preamplifier until the Rhythm circuits are s...

Page 35: ...oood 3 3 o l l1 lo Io oooo o o oo ooo I I oo lo Ioo lo I I lo I Oo o I ooo O I loo I i ooo O lOo io o o o o o o o o o Schemotic C5O1 053425 PREAM P BOARD ASSY C5OC O53421 FIGURE 13 PREAMPL IF IE R RE...

Page 36: ...lt2 4 lo L 4 IOs1 R 3qK R O 3qoK R IZK R5 330 K Rq z 2 ZZY I u 25 5 ZSV c4 j9 u BC 41K Qr RHYTHM GLAMPER R B RI I I0O r a 7 Y1 lo ZZV souRcE R2t 50K EX PRESg ON SONTROL POT EX PRE5S O N CONTROL CABL...

Page 37: ...GANS IS REh4OVED O qB MODLL ORGANS enp B D Rer D5ot os3 so IIbTE IPTER CAB o5zszR ITGOTD Cf CilrIOI 5 nrrT DrJInrltmil c BELF ot D T C SCNE 1AT L PREAMP LY D EO lot tD l g 2 l 5 BL li h t 5oa 121q NOT...

Page 38: ...WltcS SpCCtFtCAflOts 0i OmER DATA BEtoftctilG T0 mE 0 lt BILDWH CompAilY mlroH x Y E R RiIISHED IO TTilUFlcruRERt Oi OTHfnt TOR ATIY ANPo3E RE IO BE REGANDED 8Y I PTICATIOil fi OTHENXIII AI I I lilv r...

Page 39: ...ADHESIVE rT Zt OR PLIOgONo tT22 3 EXPRESSTON PEDTL BUSHINqS T S ARE TO bE COVERED WITH AMPHENOL GREASE IT 24 ON ALL BEARINq SURFACES PRIOR TO ASSEMUY 4 ADJUST FOR OOWN PRESSURE OF 4OO qRAMS or No E N...

Page 40: ...nal from iEs emitter via R34 and C24 to the base of Q8 transistor When the Reverb switch is actuated Reverb On reverberated signal from the wiper of R40 via R4l and C29 is combined wiEh Ehe non reverb...

Page 41: ...I IJPUT DRI VER SIIJGLE IIISULATED PHONO PII IJACK IIIPUT GR IlIVIET A244 023596 SPRIIIGS SHIPPIiIG CLAI1P DELAY SPR I IIGS SIIIGLE GROUUDED PI I IIO PII IJACK OUTPUT OUTPUT PICK UP REVERB OUTPUT REVE...

Page 42: ...K TRANSISTOR NPN 3 32 3 3C 2q 8 21 h tr 4 21 22 Zt z9 rq 2 SELECT NPN TRANS S T 3 BEFERENC E SCHEMAT PlN llRING D AGBAM CE S FINAL ASSEI IBLY II1UST II AIT HA iES AID SP CITIC ATIOilS ITE ATD l T I0 t...

Page 43: ...r zon n 35O 05358 1 tzo ONUV INCLUDE LABEL IVIARKED 5OO O53 qq ltm us RElfir x C B ELFoRD mm RHYT I4 votcE BD asSY l l L g s ll kprS rf so3 lzo lq a 3 n FAY GrI VI I bL Ea rLoEl A tz 4 49 3BL I BB alt...

Page 44: ...oK cq I ooqr sl t c2r Olr 7r REE DSOI 053r87 R v Ct R28 azK N OISE AMP Rr l crE zzK 1 0 5 PEDAL TRIGGER AMP c6 41Oe g c q cl3 39 g l tO 9 C 330pt 5 LATIN gI CY M BAL FOX TROT I T CB o ir5 Rq r5K oi cq...

Page 45: ...T LATI N a I o I o I t BEUSH SNARE b s s N t4 h 1 o CYM BA L D l ss DRuq T LIGH r CYII BA L CYrl 13 A L BNSS DRUM I LIdH T u s BRU5H 5NA RE SA56 DRT M CYM DA L BRUs H z CYTTDAL t I a o I c t a D I o C...

Page 46: ...o the above schematic Qg and Q9 are the Accompaniment trigger amplifier transistors which receive a triggering pulse from the AuEo RhyEhm or wonderchord Accompaniment Rhythn trigger gates Qg is normal...

Page 47: ...40 f or the l lood These level setEing resislors balance the rhythm voices with respect to one another The Brush and Cymbal voices are obtained by gating on a noise source The noise source is obtained...

Page 48: ...stroylng the authentlclty of the Snare Drum volce The outputs of the varlous volces are sumned 1n the volune control R69 and fed to the lnPut of the preampllfler through the Rhythm Elfinlnator clrcult...

Page 49: ...IN GRN l l ltt ro o zLz zZ Eg E uJ s 1l uJt9ulX rooY RHYT HM OUTPUT 2V ORN R83 BRUSH LEVEL ADJUSTMENT FIGURE 15 c38 ollii a slr YY o tq o tMr A R fh l Tz Q ilE ffifu 15 q fr3 iii S ffi m6 imfl trft tr...

Page 50: ...MP v l _ i HDR REF csor os3scol J cI f 0a SNARE DRUM R45 4 K q rz C S 0 R4T t 470K c 0 03 rf R33 68K 1 T i I R4 l 00K c2c 0 r Rq6 6 8K RS4 l2K R48 K R5r 6BK c3e o0 4t r50K c45 039 r czB 0 4t R5Z 3 3K...

Page 51: ...e and remains constant Thereforer any voltage change across R14 will cause Q6 to draw more or less current varying the conduction of Q4 and Q5 the series reg ulating elements For example if the output...

Page 52: ...YELLOW 9V SUPPLY OUTPUT RED GROUNDS BLACK 53V SUPPLY OUTPUT WHITE 28V SUPPLY OUTPUT VIO LET 20V SUPPLY OUTPUT BLUE TRANSFORMER LEAD RED YELLOW TRANSFORMER LEAD YELLOW TRANSFORMER LEAD YELLOW 10 TRANSF...

Page 53: ...D6 OA SILICON REcr FIER A5 t4 o33596 D7 ZevER DloDE 8 2V Aslq oq737o s N ReO Vt uuorv I I Yeur ow I I RED I 1 C toorF 5V I I 6 LOCATEO ON ELECTRONIC SHELF ASSY FOR CoMpONENT VA UE5 SEE CSOI 053425 T O...

Page 54: ...SUPPLY OUTPUT RED GROU N DS B LACK 53V DC SU PPLY OUT PUT WHITE 28VDC SUPPLY OUTPUT V IOL ET _2OVDC SUPPLY OUTPUT BLUE TRANSFORMER LEAD RED YELLOW TRANSFORMER LEA D Y E LLOW 10 TRANSFORMER LEA D YELL...

Page 55: ...As14 oq797o 09 MEO VoLTAGE DtoOE A5 t4 04 791 6 LOCATED ON ELECTRONIC SHELF ASSY 5 N I RED I c3 l t00rFT zsv _l_ 7 FOR COMPONENT VALUES SEE CSOI 053425 T JO SEPARATE GROUND SYSTEMS UNt4 ARKE D 4 MARK...

Page 56: ...the load Transistors Q3 and Q4 are slightly forward biased by diodes DL DZ and resisEor R25 to assure the proper switching poinE and minimize crossover dis tortion Resistors R5 and R20 due Eo the con...

Page 57: ...4V SUPPLY INPUT ORAN GE FUSING WIRE 451 4 03337 5 HIGH LEVEL GROUNDS BLACK 18AWG LOW LEVEL GROUNDS B LACK SIGNAL OUT PUT CROSSOVER SIGNAL OUTPUT When Applicoble TO NOISE SUPPRESSOR CIRCUIT RED SIGNAL...

Page 58: ...M POVJER S LtCOtrl T ANS C TOR A5lq O4 b 9 Q5 i QG NPN q LtcoN rrowER TRAtrcJ roR Ab14 o5 l Ql eO a NPI 5 LtCO 1RAN r j i rh AE lq O3 j 5s SELEC rEo eER 5 Za Z Dl D Di D t 95 MED UM OrjtAGE D tCiOe A5...

Page 59: ...SH 4 TO DELAY CIRCUIT WHEN APPLICABLE HEATS I l lK B528 051906 TRANSISTOR SOCKET 8507 033322 TRAI ISISTOR 14ICA INSULATOR A5t4 053359 SI LICON CO V POUIID A249 016587 FUSING l ll RE A574 033375 HIGH...

Page 60: ...5 i5c T RZ O l ts r it 4 Oclni t 5Ofrr Af BRSe CF qO Re a Gci C rttroN Arpl iii K llusr EE Lcl D WHei SELECTiNG rUrs VoLrRGe 5C gZ5 l T lzr l_ DRIV E R q3 Ro 2 Jrr I I i C2 r t qt I l tsOps I LO J LEV...

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Page 62: ......

Page 63: ...e Generation Circuitry is common to the 124 series 2 The Pedal Sustaln and Pedal Filter Circuitry The circults are unique to the 124A organs 3 The Accessory Board assenbly does not contain the cassett...

Page 64: ...5 CO F IG I8 I24A ORGAN FRONT V EW...

Page 65: ...LID ASSY 11 SCLO TREBLE KEYCAP t2 SOLO IAI IUAL 13 JAIIEPLATE I iITERLUDE 14 ACCO IP TREBLE KEYCAP 15 GRILLE CLOTH EXPRESS I OiJ PEDAL ASSY EXPRESSIOi I PEDAL POTE ITIOTIETER 5010 EXPRESSIOII PEDAL T...

Page 66: ...O F IG 19 I24A ORGAN BACK VI EW...

Page 67: ...1244C B BC t3 25ly POI ER AI PL I F I ER BOARD ASSY 1ll POI IER TRAI SFORt ER POlnIEP SUPPLY BOARD ASSY 15 16 CIRCUIT BREAKER I 3A AUTO RHYTHI I TRIGGER BOARD ASSY t7 1B SPEAKER I2 B OHI IS B I OTE PE...

Page 68: ...52168 2 NAI IEPLATE PEDAL A249 O52O5O 5 NAI IEPLATE ACCOI IPANII IIENT A249 052051 4 NAI IEPLATE S0L0 A2q9 052052 5 I AI IEPLATE INTERLUDE A249 053652 6 SOLO FILTER STOP TABS SEE PART LIST 7 ACCOHP FI...

Page 69: ...8 OHI4S A5r3 024925 AUTO RHYTHI I TRIGGER BOARD ASSY c500 053634 5 NOTE PEDAL SUSTAIN BOARD 124A AC c500 047808 8 NOTE PEDAL SUSTAIN BOARD 124A AC c500 047793 PEDAL ACTUATOR A237 039759 VINYL TUBING Q...

Page 70: ...5 FtG 22 r24A AC SOIO BASS KEYCAP A5SY...

Page 71: ...AI BER JEWEL 12 PUSH BUTTOIJ WHITE 13 TEI IPO BULB iIAi IEPLATE RHYTHI4 VOLUIlE 14 15 COt ITROL i iOUNTIiiG BRACKET 16 RHYTHI 1 VOLUI1E KIJOB RHYTHI l VOLU 4E POTEIITIOI1ETER IJANEPLATE AUTO RHYTH 4 A...

Page 72: ...so that the signal nearest the bass end of the pedalboard witl be of the greatest amplitude The remainder of the notes toward the treble end of the wipeout network will have gradually lower amplitude...

Page 73: ...Eltlu I0 rT Ar t spEcrFrcATroils ARE co FtDEftTtAt AflD IHEY ARE SEilT O DRAWITIGS SPECIFICATIOIIS OR R RIIISHED IO MAIIUFACTURERS OI OTHERS FOR AII AI Y MAIII ER LICEIISII G THE HOIDER OR AIIY OTHER...

Page 74: ...BALDWtil COHPATIY A IO HUSI BE IEIURIIED IM ARE I OT TO BE OISCLOSED TO AI Y PERSOTIS OIHER I HI IHOSE TO WHOT i OR OTHER DATA BELOI GII G TO THE D H EAIDWI COUPAIIY WHICX TAY 8E AilY PURPOSE ARE TO B...

Page 75: ...rvE MEA5UR ED Fnorr PotNTs lNDrcArED To GrouND Uxless Orxenwise INDTcATED 4 Setzcr NpN TRANstsl oR s PER 5429 As INDTa r TED 5 ALu CowNEcrtoNS THRoUGH PEDAL STGNAL CABLE Dsoo os34s5 A 3s Pn jK J lu 5l...

Page 76: ...Z7 R G loK I ctg To47Af 330 K ct s8 OOlr r R30 33K Srnf 59 i R3z Nor e s I Alu ResrsroRs tlzW tOf UNless SpectFlED OrxERWtsE 2 D C Vourace 14ensuREMENTs TnxErv a rrn A VouTMETER gooo ottufvocrs OR Hrc...

Page 77: ...TE ACCOMP TAB SIlJITCH ORANGE t0 4 f ACC MP HEADER INPUT YELLOW TO 4 FLUTE ACCOMP TAB SI JITCH GREEN TO B D IAPASON ACCOMP TAB St JI TCH B R0l lN l5 53VDC t IHITE ll 4 I O ACCO14P HEADER II JPUT PINK...

Page 78: ...tion wiII foIIow with the excePtion of the Rhythm Voice circuit which is described under the Rhythm Percussion Theory paragraph 16 VDC VOLTAGE SOURCE The AuEo Rhythm Trigger circuit employs two 2 exEe...

Page 79: ...Positive reset Pulse will saturate Q5 producing a negative pulse in its collector circuit which via R15 and the Waltz switch contacts is applied to the Tempo Light Transient Gate causing the Tempo Li...

Page 80: ...ge appear ing at its collector pulses Q3 on via R19 creating negaEive going pulses which are coupled by C3 to the organ Accompaniment Rhythm Percussion trigger amplifier clrcuit llhen Pedal Trigger Ga...

Page 81: ...the negative pulse ls applled to the base of Q2 the posltlve emltter voltage will appear at its collector momentarLly which saturates Q3 The resultlng negative pulse fron the collector of Q3 is applle...

Page 82: ...34 Schemat ic D5O1 O53601 FIGURE 21 fitfi grEf l o g r q k xfr r o c1 glrr fPF R Jaaaaa itfi a h ilb tid uaaP Aot O F So kfl ffii Y9 W I e offi44r fu Jiln P6 ilffi ffffi t ffiffiffi HF _614to Lgn o o...

Page 83: ...3 B 33 CONTR0LCABLE z l t f o I Cl6 001 af R63 C l7 56 K 33 t REO t TRIGGER BD TO CONTROL CABLEII ql I q lz RAINP RESET VOLTAGE 6ATES R46 q 18 C8 0l rf 53 V uy1111g r2 RZ no t at 4 o Ptc TRlGGER BD T...

Page 84: ...l toox RED TzZ c J N t UJ o z 4 tr o A TEMPO LAMP TRIGGER PULSE GI N t 7 7 o tr o ul Z I 7 N N a I o D rO TEMPO LAMP R 7l 2 tK R67 l 8K TEMPo LAM P DRIVER R68 00 K TEMPO BROWN G r OOpf 50v SEE NOTE A...

Page 85: ...rz c0NrR0L onmer o o O wALTz rE CONTROL I swrrcH w Cr PULSE Z Tr swrrcu rr 5_ ALrz coNrRoL s ur U G T0 ACCoMP 1 PULSE f 3 TO WI n fY D EO E Iut 3BL cfi er o f FILE lll DIfiHe3 AXo EotfrclTlols tlE AiD...

Page 86: ...COTPAIY wlIICH fAY BE IY PURPOSE ARE TO BE REGARDED BY IMPIICTTIOI fi OITERWISI A3 Ii r pERSoil 0R coRpoR Trot on cotlvEYrilG Airv ilcHIl fi mms3lil m Of IilAT TAY II AT Y WAY IE RE AIED THENEIO DEC...

Page 87: ...E GATES X 2 RAMP PULSE GATES R42 cl5 t6 v R44 r Unnd 22v ACCOMP TRIGGER 22V Rt9 Y s TEMPO LIGHT GATE Rt3 l s toz R29 r To PREAMP RH 50v r Rl8 c7 RHYTHM GATES R24 I CONSTANT CURRENT GE N E RATOR 16V R3...

Page 88: ...FOX TROT SWTNG SNARE BRUSH GATE O5 CLAVE TRI GGER R37 R63 BASS DRUM TRIGGER R38 R7l R6s C43 LATI N PEDAL T RI GGER AMP Rg3 czo r c2l R30 AUTO RHYTHM BLOCK DIAGRAM il ir fl l Yll o o I o I s z s 3 z B...

Page 89: ...the Rhythm Voice Generation circult Rhythm Voice Generatlon Circuit i s common to 724 series 2 The Pedal Sustain and Peda1 Filter circuitry 3 Muted Reed Circuitry 4 The Accessory Board assembly inclu...

Page 90: ...WONDE RCHORD CONTROT UNIT J O MAJOR MINOR TOUC H BAR F IG 25_ 1248 ORGAN FRONT VI EW...

Page 91: ...SOLO SOLO TREBLE KEYCAP 10 NAIV EPLATE INTERLUDE 11 SOLO FILTER STOP TABS t2 ACCOIVIPANI VIENT FILTER STOP TABS VIBRATO PEDAL FILTER STOP TABS KEYSLIP SOLO SOLO BASS KEYCAP FINAL ASSY I24B BC PART NU...

Page 92: ...I IONDERCHORD 2 BOARD ASSY c500 052888 13 NOTI PEDAL ASSY 1248 BC D500 053267 5 NOTE PEDAL SUSTAIN BOARD ASSY c506 048860 B NOTE PEDAL SUSTAIN BOARD ASSY 72 c506 048866 I IOTE r AB0VE PARTS USED ON AL...

Page 93: ...RIVETED B500 052666 i4I CROSW I TCIJ A506 052616 ACTUATCIR DETENT 4237 052680 SPEEDNUT A247 052681 NUT NYLOK 32 A247 028484 NYLOr l I IASHER A244 045932 FELT GASKET A244 C52672 TOUCH BAR CABLE B50B 0...

Page 94: ...1 5 F IG 29 _ I24B BC SOTO BASS KEYCAP AS5Y...

Page 95: ...ATE WO IDERCHORD 16 PUSH BUTTON BLACK 77 iIAiIEPLATE RHYTHI 1 VOLUI 1E RHYTHI 1 VOLUI IE POTEIITIOIIETER 1OOK OHIIS 18 19 RHYTHi 1 VOLUI4E CONTROL KIIOB 20 PUSH BUTTOI RED 27 I1UTED REED COTITROL KNOB...

Page 96: ...l o t FIG 30 _ WONDERCHORD AND PEDAT SUSTAIN BOARDS...

Page 97: ...F I 2 P2 1 r J GENERATOR REF STGNAL IN 2BV BUSS SWITC H BUSS 12V BUSS SIGNAL BUS EIGHT NOT E PEDAL SUSTAIN BOARD C506 N OT E LATCH C IRCUITS B THRU T ARE OFFSET TC LEFT OF THEI R RESPECTIVE SWITCHES R...

Page 98: ...usly since the base of Ql for the two Eransistors keyed are tied together through the switch buss However if the srvitch corresponding to the lalched circuit is opened the switch buss voltage can go p...

Page 99: ...OT E LATCH C IRCUITS E THRU I ARE OFFSET LEFT OF THEI R RESPECTIVE SWITCHES Ri lor RI 82k R1 82k 28V BUSS SWITC H BUSS 12V BUSS SIGNAL BUS I I I I I I I I I I I I I I I L SI PEDAL SW TCH I I I o2 i I...

Page 100: ...it i circuit switching it to the second stable state It can be seen that this i tri r when iwo switches are closed sj multaneously since the base of Ql for the two iiansistors keyed are tied together...

Page 101: ...O534a5 To SoLo FILTER BD REF C50t 053540 LOW 4l tt t J Rer R z roK I OK Ree K o e o 834 22x R36 R a l looK Rl9 t zK Ra5 l zK R20 tzo K CB T Ol rr t R23 K Gra PINK q T O NOTES I ALL RESISTORS ARE lzW...

Page 102: ...FILTER BD ASSY 8500 0531B9 Sch c50t 053181 FROM PEDAL STRING BASS TAB SI JITCH YELLOW TO B FLUTE ACCOMP TAB SWITCH ORANGE l0 4 E ACCOMP HEADER INPUT YELLOI l TO 4 FLUTE ACCOMP TAB S JITCH GREEN TO B D...

Page 103: ...er pairs Q5 Q8 and Q10 Q14 WiEh Q3 cut off its collector will be highly positive curting off Q4 and Q13 so no current will flow to the differential amplifiers rendering them hi ghly resistive to the i...

Page 104: ...SED AS ALTERNATE COM PLET E L Y INT E RC HANGEAB L E CONTAINING T HE INTEGRATED FOR AND TO BE WITH THE ASSY CIRCUIT OP AMP 16 1 E12 J L RED 28V VrO it BLK E TO MUTED REED I N P U T OF PREAMP TO EXPRES...

Page 105: ...coNTRoL TReltstsron encrPArROFgXo oon ttoRsMusrOEMATcHEoFoREMlrrER EASEt RoP PER 5627 EncxPnrnOrNPNTRANsl5ToRslYusTBEMATCHEDFoRBASE EMITTERDR I PERsLz7 toonu rto s To BE SELEcTED PER 5429 As lNprcA r...

Page 106: ...ry _q E1 ER tRsr Ne Mt TE D RELEAS ED Ord No r 4 L B o Date to 26 1r 7ect1 r i J cE tdeCttsr l O N W t4 7 L ItccrD O Crrrol I T V I irl IITIT rrtu lrul lur ll___l I DETA l _ FoR P l s c 8E I g OPERATI...

Page 107: ...SEE WONDERCHORD SCHEM R501 O53046 MAJOR MINOR C LAMP GAT E CHORD TRANSIENT BUSS CHORD SU STAIN 041 R143 051 LATIN R1 69 t6v R171 LIGH T Q22 Q 23 ROOT FIFTH FLIP FLOP cl0l c13 c 4 R2oB DRIVER C CHORD...

Page 108: ...rn u t J L ur t 26 72 WON DER CHORD BLOCK DIAGRAM at a n Lr D LO ur o r L tr tl GrG 3r Gfi fAY IE Grl EDC rt t Att ilAiti Aro tctftc ttfir ril lID f rltr ntr loPEm 0f nG 0 lalDrti cqq ry lD n l t f nr...

Page 109: ...on a single printed circuit board A11 switching functions are contained in the control head and the Rhythm Percussion voices are generated on the Rhythm Voice board Circuits are shown on the followin...

Page 110: ...r Q6 will pass depending on the staEe of Q5 and Q7 as previously discussed i Jheo these diodes are forward biased via R111 R114 R115 and R116 the signals will be conducted via RI12 R113 R117 R1I8 and...

Page 111: ...operation of the Root Fifth Flip Flop since a flip f1op responds correcEly to only one input pulse at a time IE is therefore necessary to disable Q24 and Q21 Llhen two keys are depressed Q8 norma11y...

Page 112: ...appropriate rhythm stops selected vla the Rhythm switches w111 sound in conjunction witl r the chord When the Pedal Translent Gate Q20 is pulsed on by the ramp the positive voltage appearlng at its co...

Page 113: ...e voltage from the collecEor of Q3 is fed by D27 Lo R205 R204 R106 and R107 saturating the header amplifiers and preventing their operaElon RI YTHTI ONLY IODE When the Rhythm Only A F c H t16V source...

Page 114: ...AMPLIFIERS _ NIINTOR HEADER R108 R109 RB5 FIFTH 16V CHORD AMPLIFIER MAJOR MINOR CLAMP GAT E R 120 B H TO ACCOMP TONE COLOR FILTERS CHORD SUSTAIN CHORD T RANSIENT GATE MINOR BAR SIMPLIFIED KEYSWITCH L...

Page 115: ...OOT FIFTH FLIP FLOP D34 16v R20 6 ROOT F IFTH TO PEDAL DIODE GATE ANO SUSTAIN CAPACITOR C13 IN FROM SINGLE ROOT ONLY SIGNAL GATE ROOT FIFTH CLAMP GATE NOTE GATE 03 SIGNAL BUSS 16 R13 0 SIMPLIFIED ROOT...

Page 116: ...D59 FIGURE 35 SIMPLIFIED TEMPO INDICATOR AND No 3 PEDAL PULSE lNHlBlT CIRCUIT FOR KEY C s3 v WI EN IN RHYTHM ONLY MODE R1 63 TO 28V R17 7 LA MP DRIVE R e re v TE MPO LIGH T GATE RAMP PULSE ROOT FIFTH...

Page 117: ...z NOTE I REFER TO WONDER GHCRD SGHEMATIC RSOI 053046 Z TI E NUMBERED TERMINAL DESI6NATIONS INDIGATE CONNECTOR NUMBER AND PtN NUMBER EG e z e Z 8 rs c 4 14 4 o 3 t 4 l 4 ll o 3 g 4 tQ 4 9 a 5_6_4 4 8 4...

Page 118: ...oRM riro RIVETED AS5Y G II l5 ZIl e e3 3 W R lrl Ir otlmlluflcl TTGDTD C CIIAIAI D D EHL rwoNDER cHoRD BD PIN W RIN6 DIAGRAM L 5 S 11 n k r i tn 503 ifit t7 N aTE D tt FAY E Grl rk Ri u IBR rr D Dtl l...

Page 119: ...c I R 125 fiffi UIO ll_ l e vvv tr Ywv K 4l pr ffiXp iP O dfAr nasz e q ilIilfi u ffi r o _rr ff ll i o AMro R14 s a olz l Hrcr v ffir4q o ro o Ji c3 vRt58 G4nnn o o o AM o 4A v R 158 G4Ann o o o 4AMr...

Page 120: ...oo o oo R7e nzr O oo 8o A oD O oo o oo pffir nro o o o trd A O O 6ffi ffifps RE o Rrp6 c4MAro5t f e e ffseanA EBe o M ro_ _ 6 o4AA4ro A SS q qeal e o o nd fi ffio D Hil e O R73 W o4Afifir o O t oo 2 f...

Page 121: ...a7 E F 2_ o J o 0 E I F o L o d N ZLZLZ O rr O tn O r oZaz ztrz o i r LFo a ffl z o l 2 z L R 43 2 ZK R r67 00K D40 R ts zzK R2ca zzK Q13 le E 9 D R6 Dr ZB or Rf 36 D9 50E 1 o DroI EDrr ErDtZ n2sl azs...

Page 122: ...r3 K o AUTO PED TRIG GREE N AUTO ACC TRIG P5 PINI PINS I 035 HS I lrur R l3 C6 lK o5 r tz T l 116S o o I t YIPs iJji f o sa prN I j a N o Y a J U o d a o F iL 046 5 R r75 39K R t9t a K P5 TONE COLOR...

Page 123: ...E pLUG plN G0NNECTT0NS r 0 PLUG PtN e Z PLUGS I I E CONNEGT TO COMPONENT BOARO E PLUG 6 CONNEGTS TO TONE COLOR REF R 5OI 053C46 5 ALL PUSH BUTTON SWITCHES SHOWN IN OFF POSITION 6 ro BROWN TEMPO LI6HT...

Page 124: ...A5t4 048341 WONDER CHORO CONTROL TO TONE COLOR CABLE RELEAS ED Ord No RN 597 Date 8 r1 1t nccro ztZ cN A ro32 CB q 1 e noOED FR lNPur CHEL cu 1g 683 D D to zs 7 IrccrD c crAror nrr nf E r_woNoER cHoR...

Page 125: ...G32 D14 A 3s D8 B36 D9 D27 D1s R74 OFF ON MAJ MIN 5TH ROOT 9 G c 33 D21 B36 D9 c37 Dr0 D 28 D22 R8I ON OFF MIN MAJ ROOT 5TH l_0 A A34 D16 c37 D10 c 26 D11 829 Dr7 R76 OFF ON MAJ MIN 5TH ROOT I1 A A 35...

Page 126: ...ier Q16 Inhibits the Pedal Transient Gate Q20 from operating the organ pedal gating transistor when WonderChord is in Rhythm only Q17 Automatic trigger for organ AccompanimenE Rhythm Percus s ion Q18...

Page 127: ...s are rhe baslc Model L2AA1L 4B wLt n a cassette recorder attached Itlhen a cassette is factory installed the letter C is added to the model number 1 e Model 1244 becomes Model l24AC and Model 1248 be...

Page 128: ...o o FlG 37 t24BC ORGAN CASSETTE TAPE PTAYE Rr RECORDE R...

Page 129: ...Filter Board Assenbly c Solo Filter Board Assembly d Muted Reed Asseurbly On N124B BC Only 3 Reverb and Volume Level set controls are relocated to the Tone Color Board Assenbly See Fig 42 4 Fuse and...

Page 130: ...O FrG 38 NT24BORGAN REAR VtEW 8lCX nrmOVrO...

Page 131: ...ASSEMB SCREWS SECURING TOP LID ASSEMBLY 14 A B MODELS AUTO RHYTHM TRIGGER BOARD AC BC MODELS ICE BOARD ASSEMBLY NDERCHORD BOARD NO 2 ASSEMBLY NI24A AC MODELS Y NI 248 BC MODELS FUSEHOLDER FUSE 2A SLO...

Page 132: ...2 D E FIG 39 GENERATOR SHELF ASSEMBLY DESCRI PTION 6 GENERATOR SUB ASSEMBLY 3 F F GENERATOR SUB ASSEMBLY 4 G G GENEMTOR SUB ASSEMBLY 5 A A GENERATOR SUB ASSEMBLY 6 B C 0 B l lft PART NUMBER x500 04869...

Page 133: ...DESCRI PTION PART NUMBER t 2000 MFD 60V B5l 7 04788 2 POWER SUPPLY BOARD ASSEMBLY 8500 052958 3 4000 MFD 60V B5l 7 038985 4 CAPACITOR MOUNTING CLIP A237 019612 25W POI IER AMPLIFIER ASSEMBLY 8500 05...

Page 134: ...DESCRI PTION l SPEAKER l2 8 oHM 4513 024925 4 WONDERCHORD BOARD NO 2 ASSEMBLY NI24B BC MODELS c500 052888 AUTo RHYTHM TRIGGER BOARD ASSEMBLY Nl24A AC MoDELS c500 053634 5 FUSEHoLDER A5l 4 059976 FUSE...

Page 135: ...DISASSEMBLY TO RAiSE TONE COLOR REMOVE REMOVTNG Tl Jo NUTS rTEM 2 FIG 42 NI24 ORGAN TOP VIEW TONE C0L0R BOARD ASSEMBLY rTEM t AND TWO SCREWS rTEM s VOLUM REVERB E LEVEL SET _i trr N tpors i FROM BACK...

Page 136: ...NI24 A AC MODELS PEDAL SWITCH ASSEMBLY FIG 43 TONE COLOR MISED NI24B BC MODELS PEDAL SWITCH ASSEMBLY ACCOMPANIMENT St lITCH ASSEMBLY DESCRI PTI NI24B BC MODELS NI24B BC MODELS x500 059908 PART NUMBER...

Page 137: ...ITEM 2 MANUAL SWITCH COVER SOLO MANUAL SWITCH COVER ACC FIG 44 SOLO MNUAL RAISED DESCRI PT ION PART NUMBER D502 059544 D502 052385...

Page 138: ...TONE COLOR BOARD ASSY N 1 2 4A Ne C sOO 059781 Schernqtic Ne D5O1 O59 837 VOLUME LEVEL SET MINIPOT REV ERB LEVEL SET M INI POT FIGURE 45 DELETE WHEN CONN ECT I NG TO TEACHING SYSTEM 109...

Page 139: ...NE COLOR BOARD ASSY N 12 48 N9 C5OO O59782 Schemqtic Ng D5O1 O59 837 t DELETE WHEN CONNECTING TO TEACHING SYSTEM VOLUME LEVEL SET MINIPOT REV ER B LEV EL SET MINIPOT soLo i ACCO P A FIGURE 46 o o o 11...

Page 140: ...TE DEE PN ryIRE FUNCTION I RED 9V 2 VIOLET t28V 3 BLACK GND 4 5 6 EROWN PED GATE TONE COLOR BD CABLE MO DE L A N wlR FUNCTION I Z ORAN6E 22Y 3 GRAY PS GND 4 BTICK c GND 5 WHITE 53V 6 _ __ __J ii 5fr R...

Page 141: ...LL mAl l l3 lrO ECIFIC TK l l AeC ArO FOIAH TIC trcPEFrY C Tlf l L6 V N tlAt I frlAl OO lr0 tatlT 8I ETT F EO TC T ALL IPECIACANOI B ATE fD XTUL ATO AE IPT TO IE DSCLq D TO A IEHP B ONCT THAT I G ro w...

Page 142: ...STRING o S1 8 CLAR NET RHYTHM CLAMPER c24 7 l A l cz 1 s 5V o R60 K _l_ o t czl Rso luf tK Rs8 41K Rs9 Z K J s tr o E l r l E RI I 68K RIB t00 K R 4 r00 K R 9 lo0K f ott R5 330K S5 FLUTE AC C ENT R 3r...

Page 143: ...NE C 0L0R BD SCHEMATIC I Rr43 R 4 Rrqs q rtulE I I 6EK 33K 100K I vvvf v1J A Q O D EC unD Lt L arTE g B 15 TB L no Llu I t t 505 tlt2 19 r r ci a 0011 AY LEr cll E D DL ORG N NIA4Ad B f crg L ceo inrq...

Page 144: ...x r RHYTHIO OR W C NPUT GND TO REMOTE TO REV UNIT INPUT RELEASED OrO tto RN 645 Date I za 73 CASSEITE INPUT TONE TAB OUTPUT TO CASSETTE RECORDER FROM REV UhIIT OIJTPUT Illlt ONEIII frctAE DCGII A G TI...

Page 145: ...uqut3 oH l E To sEN coNN SlRrp 3 GENERA OR SIGNAL CABLS peoIu I3 CONNECTIoNS 25 TURU A ON GEN CoNN S RIP 4 ACCOI lpANly eNT GATE To WONoEB c oRO cReue tre B I gC OXUV t4 coNNEcTloNS TO WONOERcHoBD GAT...

Page 146: ...131 SPEAKER GROUND A C POWER C SPEAKER CABLE c508 os9 135 l_ f t I I I I I I I I I J RELEASED olt No RN Gcs Petc a t1 73 L____J POWER SWITCH PILOT L GHT A506 058601 2 AMP FUSE I FUSE BLOCK POWER CORD...

Page 147: ...UTO PEDAL TRIG IIRING SIDE SHOWN F Jot i locRrEo oN RHYTHM VOLUME AUTO ACCOMBTRI s30 ORANGE YELLOW RELEASED F U NCTI ON Gltt EN p TEMPO CONTR OI Or O No R N G 45 Date 8 23 73 RHYTHM INPUT TO PREAMP VI...

Page 148: ...re ModeL Nl24R ls electronlcally the same as the N124A wlth the following exceptlons l The Real Rhythn IID replaces the Auto Rhythu clrcuirry 2 The N124B Pedal keylng system ls used 3 A slx 6 lnch spe...

Page 149: ...REAI RHYTHM l...

Page 150: ...A5l3 05 t664 rAoDG lts n nE AR...

Page 151: ...o FlG 49 NEAI RHYTHTI CONINOIS...

Page 152: ...05g754 TMD l l I 3 t 5 FUNCTIONS YTHM VOLUME POTENTIOMETER RED INSERT RHYTHM VOLUME KNOB DESCRI PTION NAMEPLATE RHYTHM VOLUME REAL RHYTHM PUSH BUTTON Sl lITCH BLUE INSERT MUTED REED KNOB SOLO BASS KEY...

Page 153: ...BER t REAL RHYTHM T M D UNIT ASSEMBLY x500 060225 2 REAL RHYTHM LOGIC BOARD ASSEMBLY c500 060 l 74 3 REAL RHYTHM VOICE BOARD ASSEMBLY c500 059386 4 REAL RHYTHM BRUSH ADJUSTING MINIPOT IOOK B509 04 I 9...

Page 154: ...eoulNel IFTTreHI lpor xal ry ttr6N66l lrool EHUrel ITEffiil TI rFffir l ffi tTi ii6 rwl tTiEFENffiEI ilancHl CRASH CYMBAL rRrGgER GATS PEDAL MANUAL TE16GETEIE I oroZ D4 o 2 Y tr2t L W l TEttPol strc o...

Page 155: ...tsAFElrc mill ffi FREO SE LECT cowacLl TClLLATOT oaa t2 tto x cowl 3C rL I o Dt2 REAL RHYTHM BLOCK...

Page 156: ...Snare Cymbal Brush Clave Brush The DRUM ROLL or CRASH CYI BAL rhythm voj ces are sounded only while depressing a corresponding instant touch push butEon The organs r ri th the manual rhyEhm feature i...

Page 157: ...ve separate outputs referred to as five bit binary address information for the ROM Comparing Ehe five divider waveform ouEpuEs in a Eime period of one ful1 cycle of Ehe last 15 divider out put it is...

Page 158: ...rhyEhn pattern srriEches SWING When the RoM 1s approprlaEely addressed by the counter the strobe pulses w111 be gated through Ehe RoM to appear at one of lts elght 8 ouEputs as a negaEive lnverted Eri...

Page 159: ...llowed to run Therefore each time the StarE Stop kick slriEch is operated the Clock 0scillator either s tarts or s tops To prevent the rhythm uniE from running when the power switch of the organ is sw...

Page 160: ...caElon each divlder ls named as per the accompanylng Real Rhythn Block Diagran The first dlvlder ca1led Ehe Clock Control Flip F1op 1s used Eo sEart and stop the clock oscillator in response Eo an inp...

Page 161: ...address 1 O 0 0 0 corresponds to beat I17 As a resulE of thls instanEa neous circuit action beat 117 occurs inrnediately after beat 112 Beats 13 11 L4 lt5 ana llL6 are therefore skipped A similar situ...

Page 162: ...gger pulse generated on the organ Accompanlaent Danual when a key is depressed ls applled v1a R54 C6 and D21 to the base of Q3 which causes Q3 Eo un saturate and Q4 to saEurate for the tlme perlod det...

Page 163: ...ground paths for noise ampllfler stages Q48 and Q52 respectlvely allowlng then Eo operaEe Q48 applles its nolse output to t he hlgh frequeney aurplifler clrcult of Q49 Q50 while Q52 pff 1ts nolse outp...

Page 164: ...0 111 Hz 50 us CYMBAL Qs2 Qs3 Q54 Lower Freq Noise 1 0 Sec Q48 Q49 Qs0 HIgher Freq Noise 1 0 Sec Q42 5555 Hz 3 5 rns CLAVE Q38 2000 Hz 20 ns BRUSH Q24 Q2s Whlte Nolse 65 ms AC CE NT Q32 25O Hz 30 ns S...

Page 165: ...0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 l t I I 1 I 1 1 000 001 0 l 0 0ll l 00 l 0l tl0 t l I 000 001 0 l0 0ll 100 101 1 10 1_1 1 t 2 3 4 5 6 7 I 9 10 ll 12 1 2 3 4 5 6 7 8 9 t0 il 12 I 2 3 NOT USED I 2 3...

Page 166: ...TOR OF 06 STOP START FLIP FLOP START STOP KICK SWI TCH OUTPUT MEISURE t TIME 2nd vEaSuRE TruE E 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 8 n 31 32 l tNG 324 START STOP KICK SWITCH DE...

Page 167: ...iiii iIlI 1 Ir tiil t T iit Ilr iil iii IE iII it Ul o I...

Page 168: ...o ooo o r fl 127 13o qqfi d lF o Erze oaTtnnro c nn ro aitl2zo r 3 r W Are o nEat nuylHv toot Schemotic N9 D5O1 059157 1l1at ut r DATE 10 11 73 DwN S qf F IGU RE 52 5...

Page 169: ...PO LKA WALTZ s 47 v ORUM ROLL SI ooo ooo sa r S5 S6 S7 s8 VIOLET S9 f ROM F c23 I J 00BSpf 1 lr l tlls r3v GYMBA NOTES 1 ALL RES ISTO RS A R E Z Z D C VOLTAGE M EASUREI HTGHER FROM PorNT 3 SELEGT RS8...

Page 170: ...K o tl d F UJ a UJ E tJ F nt ROM S 8 I LET I D I8K vl l ___ 1 HG5 r2V TEMPO LIGHT T C GNO STo P START Sw ON EXPRESSION SHOE PLUG PE 7aW lo UNLESS OTHERWISE SPECIFIEO IEMENTS TAKEN WtrH A VOLTM ETER aO...

Page 171: ...R RZj 4 1r RZI t rK R2IE 4 7 K Rzo5 l00K R20g 41K c9 001r RZIZ 59K RZtS l0K c8t 02 r R202 t0oK R213 6BOK GI9 0S tJ D3 GIO 0hl s3K Rao aaK Ret6 ZK g NOlES 5 4 ALL RESISTORS aw to 6 UNLESS OTHERWISE SP...

Page 172: ..._l A D RSVISED PEE TECH SITYICA Regreer No c N t tr lr Cn1 rlccrD Ct Sr rcll ilrl n Ir r D DIEHL VOI CE BD SCHEMATIC AG ua TT ttt 4 6 3 I rr505 Tr C tNoTED G ta a I J ItL at Ko L Rel Rxyrnrt rus coMB...

Page 173: ...59 R 67 R265 ilEEr o AnAAr o RzG z v qnnAro ffixw 6 f iB ffi D 29 Q47 6 Ea lffi S RaBA R231 F lSuuluuuubl 841 fu Y isf 16 A Jnnnro tau o g F e 0W qfft o A A op 3 p R195 C 68 Y C 93 R240 a o f qtr tf s...

Page 174: ...20oo r 60v PED SIG FROM GEN GND r 49L lo_ 3_ EN __9 19 __1 N C PED eS GltD MUT TIE PT 4000 eY T0 ACC BD r GEN RED A AssY e 5oo 0605 14 uJqs BSoo o5 I g oaEi ZS 5PV FBOM CROSSOYER IVET oBH a RetncaTr p...

Page 175: ...lnlng to the case finish and factory installed accessorles is coded into the model number and serlal number For Ehls rea6orr and because of posslble changes ln sub assemblies during the normal product...

Page 176: ...ES ORGAII SERIES CODE MODEL NUMBER SERI ES CODE MODEL AND CASE FINISH CODE STYLE Contemporary FINISH B l lalnut CASE FINISH CODE SEQUENT NUMBER IAL DESI SERIAL GNATION M0DEL I 1248 SERIAL NO IOI 34 A...

Page 177: ...or Pack Reslsror 120 Ohm 5 watt Resistor 25Ohm 5Watt Capacltor Electrolytic 1 nfd 25V Capacltor Electrolytic 10 nfd G 6V capacltor Electrolytlc 50 nfd 6v Capacltor Electrolytlc 50 mfd G 25V Capacitor...

Page 178: ...O36777 B 508 027658 A 247 053242 COMPONENT BOARDS Solo Fllter Board Assembly Pedal Accompaniment Filter Board Pedal Accompanlment f 11ter Board Special Asserobly L24A 124AC Assembly 1248 7248C L24BC...

Page 179: ...7 x 250 0sl99 3 x 250 05 3594 x 250 053595 x 250 053596 B 250 053270 x 250 047290 x 250 04t29L x 250 o47895 x 250 038739 x 250 038735 x 250 051986 x 250 o44L57 x 250 051987 x 250 051989 Diapason Flute...

Page 180: ...56 28 356 29 356 30 356 31 356 32 356 33 3s6 34 356 35 355 36 356 37 356 38 356 39 3s6 40 3s6 4L 356 42 3s6 43 356 44 356 4s 356 46 3s6 47 356 48 3s6 49 356 50 356 51 356 52 3s5 61 MANUAI ASSEMBLIES M...

Page 181: ...124R Contact Wire Straight Contact Wire Bent Contact Wlre Mountlng Block KEYCAPS Accompanlment Treble Keycap Assenbly A11 Accompaninent Bass Keycap Assembly A11 Solo Treble Keycap Assembly A1l Solo B...

Page 182: ...3450 D L7 5 053597 D s00 048516 Tirl Plug Cable Asseobly Transforner Power Larnp Socket Nut 9 16rr 27 Nameplate WonderChord NaEeplaEe Teopo Nameplate Rhythn Volume Naroeplate WonderChord Functlon Nane...

Page 183: ...0012 uf 0015 uf 0018 uf OO22 rf 0027 uf 0033 uf 0039 uf 0047 uf 0055 uf 0068 uf 0082 uf 010 uf O12 uf 015 uf 018 uf O22 uf O27 uf 033 uf 039 uf O47 uf 056 uf 068 uf O82 uf 10 uf I2 uf 15 uf 18 uf 22...

Page 184: ...6841 s 244 35LO52 s 205 000471 s 205 000102 s 205 oo0222 s 205 ooo472 s 205 000103 s 218 000203 s 218 000303 s 218 000503 A 507 060149 A 507 060150 Capacltor Mylar 68 uf Capacltor lIylar 82 uf Capaclt...

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