Hammond Organ Service Manual - Early Models (A,B ... - Audiofanzine

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MODEL B-40! (IN PRODUCTION NOVEMBER 1936 TO DECEMBER 19A7 (IK CABINEJ SIZE: 36" WIDE, 36" HIGH, 28-1/2" DEEP FIMSH WEIGHT; OUTPUT! AC INPUT: WALNUT STAIN 225 POUNDS f*Q WATTS - 2 AMPLIFIERS. 4 - U" SPEAKERS. APPROXIMATELY 360 WATTS- A SEMI "DECORATIVE, DOUBLE -STRENGTH CABINET DE SIGNED FOR USE IKDlVlDUALLy OR IN GROUPS. THE B-40 IS FOUND DESIRABLE FOR MANY CHURCHES Am FOR LARGE INSTALLATIONS, FOR IT MAY BE USED APPROPRIATELY IN AUIOST ANY SETTING, MODEL B^40 TONE CABINET MODEL C-20! PRODUCTION 1937 TO MARCH 19^2). M0DEL CR-20; (IK PRODUCTION 1939 - 1942) EQUIPPED WITH REVERBERATION UNIT. MODEL CX-ZO: (IN PRODUCTION JANUARY 1939 TO MARCH 1942) EQUIPPED WITH ROTOR TREMULANT. SEE MODEL CXR-20 FOR PICTURE OF THIS FEATURE. MODEL CXR-20! (IN PRODUCTION NOVEMBER 1939 TO MARCH 1942) EQUIPPED WITH ROTOR TREMULANT AND REVERBER- ATION UNIT. DIMENSIONS: 29" WIDE, 53" HIGH, iB-I/4" DEEP. FINISH WEIGHT: OUTPUTS AC INPUT: HATCHED AMERICAN BUTT WALNUT AND ANTIQUE BRASS HARDWARE, 153 POUNDS 20 WATTS, 1 AMPLI?TKR, 2 - 12" SPEAKERS APPROXIMATELY 200 WATTS. MODEL C-20, CX-2a, AND CXR-20 TONE CABINET 1-6
MODEL C-40i (IN PRODUCTION JimE 1936 TO DECEMBER 1937) OirrPUT: CABINET SIZE: 38" WIDE. 71" HIGH, 27-1/2" DEEP, FiNISHi WEIGHT: AC INPUT; WALNUT STAIN 313 POUNDS UO WATTS - 2 AMPLIFIERS AND h - 12" SPEAKERS APPROXIMATELY 360 WATTS. THE C-iO CABINET HAS A WIDE VARIETY OF APPLICATIONS. IT IS ESPECIALLY ADAPTED FOR USE IN ENCLOSURES WHERE THE INDIRECT PROJECTION OF SOUND IS DESIRABLE. VERY OFTEN THE CEILING AND FLOOR ARE THE ONLY "LIVE" OR REFLECTING SURFACES AND THIS TYPE CABINET MARES USE OF THERE, THE C-AO CABINET IS USED INDIVIDUALLY OR IN CROUPS OF TWO OR MORE. MODEL C-40 TONE CABINET MODEL D-ZO: MODEL DX-20: MODEL DR-20! (IN PRODUCTION OCTOBER 1937 TO MARCH 1952), TONALLY IDENTICAL WITH MODEL C-20, THE D-20 FILLS A NEED FOR AN INEXPENSIVE CABINET FOR USE IN A WIDE VARIETY OF INSTALLATIONS V.TIERE DECORATIVE QUALITIES ARE A SECONDARY CONSID- ERATION. (IN PRODUCTION OCTOBER 1938 TO JUNE 1942). EQUIPPED WITH ROTOR TREMULANT. (IN PRODUCTION AUGUST 1939 TO MARCH 1952). EQUIPPED WITH REVERBERATION UNIT. MODEL DXR-ZOl (IN PRODUCTION APRIL 1939 TO JUNE 1945). EQUIPPED WITH ROTOR TREMULANT AND REVER- BERATIOK UNIT. CABINET SIZE! 28" WIDE, 56" HIGH. 16-3/4" DEEP. FINISH: FACE AND SIDES OF AMERICAN VALNUT. WEIGKT! 149 POUNDS - D-20: 171 POUNDS - DR-20; 178 POUNDS - DXR-20, OUTPUT: 20 WATTS - 1 AMPLIFIER, 2 - 12" SPFjUCERS AC INPUT! APPROXIMATELY 200 WATTS. 1-7
Page 1 and 2: f ^
Page 3 and 4: SECTION I Mpdfli* BC, BV, BCV. B-2
Page 5 and 6: MODEL A - MODELS A & AS: (IS PRODUC
Page 7 and 8: U,S- SOVERWÊrjT PURCHASED EaUIPMEN
Page 9 and 10: CABINET : -1- \ MODEL ; A-100 A-101
Page 11: Mim MODEL A-20! (IN PRODUCTION OCTO
Page 15 and 16: MODEL PR-40 MODEL QR-40 MODEL PR-40
Page 17 and 18: II THEORY OF OPERATION The console
Page 19 and 20: THEORY OF OPERATION The console of
Page 21 and 22: HARMONIC DRAWBARS Each console has
Page 23 and 24: TREMULANT shift, lilting tablets [F
Page 25 and 26: speakers . POWER AMPLIFIER A- 100 A
Page 27 and 28: REVE KBEIL^TION Reverberation is th
Page 29 and 30: for that purpose , C,CV . D,DV.E,G
Page 31: Il ^^^~
Page 35 and 36: Associated with each tone wheel is
Page 37 and 38: 91 Frequency Generator with complex
Page 39 and 40: H CHORUS GENERATOR (Used in models
Page 41 and 42: "S TART^' SWITCH BROWN , BI^CK TEL-
Page 43 and 44: When a p!ayinp key is pressed, its
Page 45 and 46: in PEDAL SWITCH ASSEMBLY Figure 5 P
Page 47 and 48: (A ta 3S BE5ii70R P*MEL Ifcth !0'h
Page 49 and 50: LiJ I on ACTUATOR FOR ONE KEY TUNIN
Page 51 and 52: Pedal Keyboard Pedal keys are set a
Page 53 and 54: is In Pedal Busbar Shifters Pedal s
Page 55 and 56: On the front edge of each channel o
Page 57 and 58: MODEL A CONSOLES SERIAL NUMBERED 'O
Page 59 and 60: MATCH. TRANS. BLACK PREAMP. RED CON
Page 61 and 62: Of PREAMPLIFIER AMPLIFIER AMPLiFIE*
Page 63 and 64:
'o F f'oR *CH RU S*CONTACT
Page 65 and 66:
I Put u^ MFOa-TbOPv^ VL MA Ck ViBBA
Page 67 and 68:
manual as long as percussion tablet
Page 69 and 70:
FIG. 1 is UPPER E PIN LEVER DRIVING
Page 71 and 72:
MOVING THE FLUID TYPE UNIT The reve
Page 73 and 74:
INSTALLATION OF PR AKD QR TONE CABI
Page 75 and 76:
Note: St*.ps 3 and 4 apply only to
Page 77 and 78:
CC £ ^
Page 79 and 80:
2. Replace amplifier and place a so
Page 82 and 83:
^ k i ^
Page 84 and 85:
a. 1^ Anarti^sv tfOiv aiN 30 :iNcu.
Page 86 and 87:
-.Tui-*js?v aoivaiNiD 3NOi 3-7
Page 88 and 89:
3-9
Page 90 and 91:
3-n
Page 92 and 93:
iL D O o z O u z 3 O O 2O < < : < I
Page 94 and 95:
3-15
Page 96 and 97:
3-17
Page 98 and 99:
2,000 4,000 7h5QO ?^ J.OOO 300,000
Page 100 and 101:
PEDAL SOLO UNITS CONCERT MODEL CONS
Page 102 and 103:
Volume Control (b) The volume knob
Page 104 and 105:
in - 2 J o z o u 53 5 "-3 i^ u i St
Page 106 and 107:
Q > -T * h^ ' 4h— t- i § ^l,\ '
Page 108 and 109:
of PDMFn Tl flUMT VlfVJ or fHA^^^ P
Page 110 and 111:
ELECTPICAL PARTS LIST FOR PEDAL SOL
Page 112 and 113:
PEDAL SOlO on \ le' s' rK^;- c^/; ^
Page 114 and 115:
of ISFDT HEATtfLS r 0-- ft C? 05/40
Page 116 and 117:
.1 ^;ECi- 2.3 ^ «60 H£>TER3 Sm.(i
Page 118 and 119:
-J o at t- J O a: H lirpuT dJl-i 11
Page 120 and 121:
"""/'iftni'ii t I PD««r [Jib ^D-^
Page 122 and 123:
"TO—^m -orr--, 1 oi a 33 ^ £ A
Page 124 and 125:
3-45
Page 126 and 127:
T4 ^TfT^ z*^v-
Page 128 and 129:
10^ WIE.1N Pa«HEP AT*D TOP ViLVI o
Page 130 and 131:
J o: IuJJJJJl> J T /^ ;( r-V R 4 ^8
Page 132:
It > L I> i^ Ef IP fE 0^ > t4 > in
Page 135 and 136:
A 591 ]l' Trrmnrrrj ru "^ ÂÂ^ (0
Page 137 and 138:
- pO
Page 139 and 140:
3-60
Page 141 and 142:
CKG. Q C/> n * < C S^S^ oca.z 3-62
Page 143 and 144:
J I- Ol I 1 IS h o o o o t < J U 5
Page 145 and 146:
3-66
Page 147 and 148:
ft II OL I 3-68
Page 149 and 150:
3-70 A"^Hr^"Js^Y aCivti3 43^ SfÔi.
Page 151 and 152:
Figure 1-5. Tone Generator 3-72
Page 153 and 154:
3-74
Page 155 and 156:
TABLE III - FREQUENCY NUMBERS ASSIG
Page 157 and 158:
TABLE 111 - FREQUENCY NUMBERS ASSIG
Page 159 and 160:
Do not twist it, is b. Strike the p
Page 161 and 162:
REPAIR HAMMOND ORGAN COMPANY
Page 163 and 164:
SCANNER REMOVAL. DISASSEMBLY AND RE
Page 165 and 166:
3-86
Page 167 and 168:
O Q * J imI -J
Page 169 and 170:
4-8. ADJUSTMENT OF PERCUSSION CUT-
Page 171 and 172:
4 AND 64 16 AND BLANK 4 AND 64 16 A
Page 173 and 174:
PINION LUBRICATING WICKS Figure 5
Page 175 and 176:
ROTOR CONTACT PIN A-BRUSH COVER REM
Page 177 and 178:
is is sent li> roni wires to termin
Page 179 and 180:
J IE Lit lU u 3 3 fTTTTTll 1^ ft LU
Page 181 and 182:
cable passes to the tone generator)
Page 183 and 184:
5-14
Page 185:
THIS SECTION IS DIVIDED INTO THREE
Page 188 and 189:
I WS:C . T . ow-oie29q i rtlSIi; PA
Page 190 and 191:
%- 2 \- 3 3- 7 3- B J- 9 3-10 3-11
Page 192 and 193:
5- 4 KE* COMB ASSE^ffiLt (MANUAL HE
Page 194 and 195:
4- 5" , »^ .is '""'* Wf^m
Page 196 and 197:
PRESET P4NEL ASSEMBLY IJJÔOOOOl t
Page 198 and 199:
EXPRES51QN PEBAL *5StJfflLT ^ , l2]
Page 200:
POUER SUPPtT ASSErtBLT . . , . , 13
Page 203 and 204:
LEVELING TABS REVtPBEPfiTrON UNTT A
Page 205 and 206:
in- I**- I I Ift- - IH- } (H- - IH-
Page 207 and 208:
CONCERT MODELS RT, RT-2, AND RT-3 H
Page 209 and 210:
JVriU-M Jif-AJ< VIK'A Uk' i.tiNSl.'
Page 211 and 212:
© PREAMPLIFIER NOTE: PARTS INFORMA
Page 213 and 214:
5 J PEDAL SOLO GENERATOR DlOO RT SE
Page 215:
-32 TONE CABINET CROSS REFERENCE MO
Page 218 and 219:
(TJ) PLUGS AND RECEPTACLES 1. 5 PIN
Page 220:
HOOO-000495 11/87 5C printed in u.s
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Hammond Organ Service Manual - Early Models (A,B ... - Audiofanzine

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