Hammond l 100 Series Service Manual

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SERVICE

MANUAL

HO-735

HAMMOND ORGAN COMPANY



TABLE OF CONTENTS

Page

Introduction

Sp~cifications

SECTION 1- Huw the Ilrgan Operates

SECTION II-Theory of Operation

2-12-2

2-3

2-4

2-5

2-6

2-7

2-12-1

2-1

2-2

2-2

2-3

2-3

2-3



SECTION III - O isassem bly

3-1

3-1

3-1

3-1

3-1

3-1

3-2

3-2

3-2

3-2

3-2

3-3

3-3

3-33-3

3-3

SECTION IV -Practical Service Sug gestions



LIST OF ILLUSTRATIONS



INTRODUCT ION

For convenience in location desired information, this manual is divided into the following sections

For convenience in locating desired information, this manual is divided into the following sections:

L

II

III

IV,Y

V I. Parts list

SPECIF ICAT IONS



SECTION I

HOW THE ORGAN OPERATES

1-1. GENERAL - This section contains a

description of the opcrarlng principlcs o:

LIDO Series organs. Figures 1-1 and

t 2 depict the locations of the various

subassemblies. figure 1-3 is a block

diagram.

1-2.

Electrical irnpulses of various Frequencies

are produced in the "tone generator

assembly" which contains a number of

"tone wheelsv drivcn at predetermined

speeds by n rnctor and gear arrnngcrnentEach t0111:) wheel is a steel disc similar to a

gear, with high and low spot" or teeth, on

its edge (sec Figure 1-4). As the wheel

rotates, these teeth pass ncar a permanent

magnet, and the resulting variations in the

magnetic field induce a voltage in a coil

UPPER OR

SOLO M AN UA L

LOW ER OR

GREAT MANUAL

Figure 1-1 L-l00 Console, Front View

I-I



Figure 1-2. G100 Console, Rear View

1-2



1-3.

Figure 1·-4. Typical Tone Generator

1-4. TONE GENERATOR. - All tones or the organoriginate as electrical signals ill tbe tone

generator assembly. It contains 87 tone

wheels having various numbers of teeth,

with suitable gears for driving them at

various speeds from a main shaft extending

along the center. Each pair of tone wheelsis mounted on a shan and between them is

ubakclilegearheldbyacoilspring,fOl"ming

a mechanical vibration filter. As the gear is

not rigidly attached to the shaft, any pairof wheels which may be slopped acciden-

tally will not interfere with tne operatiouof the others

Adjacent to each tone wheel is a magnetized

The output frequencies or the tone genera-

torarenum~red,forconveniencc,in order

of increasing frequency. TIle lowest, number

1-4

Figure I-S.l'IIagnct Locations on Tone Generator



1, is about 32 cycles per second, and the

highest, number 91, is about 6000 cycles

per second. Frequency numbers 1 to 13 arc

used only for the pedals; numbers 14 to 17

are omlued.nnd numbers 18 to 91 are usedfor the manuals. Figure 1-6 showing filter

locations also shows the terminution pointof each frequency, while Figure 5-1 shows

typical tuned and untuned tone generators.

In case any generator frequency is weak 01absent. refer to "Practical Service Sugges-

tions" for the procedure to be used in

locating and correcting the trouble

1-5. M ANUALS. - Musical frequencies from thetone generator go through the manual cable

to terminal strips OIl the two manuals and

from them to the key contact springs

Under each key arc a number of contact

springs (for rho fundamental and harmonicsof that key) which contact an equal number

of busters when the key is pressed. All

contact springs and busbars have preciousmetal contact surfaces 10 avoid corrosion,

and the manuals are sealed to exclude dust

so far ns possible. In case a contact becomes

dirty in spite 0 1 " these precautions, a busbarshifter is provided in each manual to slide

the busbars cndwise and thus provide a

fresh contact surface. (See paragraph 4-3b)

looking under the lower manual 011 the

left hand end (front view) a black woodend block will be observed. One half inch

from the front of this block is a drilled hole.Within this drilling is a small metal tongue

with a punched hole. Using either long nosepliers ora hook, this tongue can be moved

ill and out and it ill turn moves the busbars.

The upper mnnua! shifter is in a similarplace and access to it is from the rear or Lhe

console

The key contacts art: connected through

resistancewirestothelllJnuallerminal

strips. The manual wiring chart, Figure 1-7,

shows how the contacts of each key are

connected to the proper frequencies to

supply the fundamental and harmonics ofthat particular key. The blank spaces

indicate that no key contact is used, inas-

much as the higher harmonics of these

keys art: not required. Since the percussion

control circuit is keyed through the 6th

harmonic busbar, the blank spaces in thisrow have contacts connected to ground

through resistance wires.

The busbars o r eacf mauual.vach onecarrying a certain harmonic, arc wired to

the appropriate harmonic drawbars for

that manual through the "Drawbars" tao

Figure 1-6. Filter Locations and Frequency Terminations on Generator Cover

1-5



1-6



1-6.

Figure 1-8. Drawbars & Control nbs (Partial View)

1-7



Figure 1-9. Pedal Keyboard

L-IOOseriesinstrUlllent,cach providing

some change in the instrument's operation

1-10. CONTROL TABS.- There are 17 tabs on the 1-13. REVERBERATION AND VOLUME SOFT

1-11. PRESET TABS. - Pour tabs arc provided

for the upper manual and two for the

lower manual. As indicated, they provide a

choice of using the drawbars or playing the

preset tones indicated on them.

1-12. VIBRATO TABS. - The i-IOO series organs

arc equipped with 3 tabs which vary till)

vibrato effect. Three degrees ofvibrato

arcavailuble using the VIBRATO NORMA L,

VIBRATO S!lIALL or both together.

VIBRATO CHORUS Gall be used with

VIBRATO NORMAL, VIBRATO SMALL,or both, 10 provide different degrees of

chorus

1-8

TABS. - Several degrees of reverberation

arc obtained by the use of either or bothtabs labeled ReVERB I and REVERB II.

These tabs, in addition to turning this feature

on, govern the loudness or amount of rever-

beration by a resistive network used in con-

juntion with (he speaker. The VOLUME

SOFT tab controls the overall volume of the

organ and is especially useful where playing

1-14. PERCUSSION CONTROL TABS - There are

four of these tabs which operate only when

the upper manual DRAWBARS tab is de-

pressed. Pressing either the SECOND

HARMONIC or THIRD HARi\IONICtab

will, when the upper manual is played,

cause the tone to sound percussively (in

addition to sustained organ lanes). Both

tabs can be deprusscdvgtvtng a combinationpercussive rene. The FAST DECAY tab

causes the percussive tones to fade away

with greater rapidity. PERCUSSION SOFT

reduces the volume lor the percussive signalOperation of the electricalcircuits associated

with this feature is described in subsequentparagraphs



1-15.

1-16.

1-17. HARMONIC 8USBAR SWITCHING ANO

REITERATION SPLIT. - Upper Manual.

TIle Sub-Fundarneutat, sub-third and eighth

harmonics are not switched. The sixth har-

monic bus bar is used for percussion keying.

1-18. L-100-1 SIX-VOICE PERCUSSION FEATURE

(S~I!Fiqure l-1l).-

1-19.

controls ere located

of the lower manual.

1-20. VOICING. - The following voices are

available.

1-21.

Chime

REITERATION SPLIT

"B" CHANNEL

Guitar 2nd

Marimba Fundamental 2nd 3,d

4th

5th

Xylophone Fundamental 3,d 2nd

4th

5th

Banjo 2nd Fundamental

Srd

4th

5th

1-9



Figure 1-10. L-IOOA Preset Percussion Unit

Figure: 1-11. L-100-1 Six-Voice: Percussion Controls

1-10



[he RHYTHM VOLUME control, mounted

to thu right of t hc rocker tabs, regulates

the loudness of the rhythm voices relative

10 the other organ voices. The organ's

expression pedal also affects the rhythm

voices except brush and cymbal

The BRUSH and CYMBAL voices sound

without reverberation. The remaining voices

arc reverberated w henever a REVERB tab

on the organ's control panel is depressed.

1-22. E XTE R N AL EQU IPM EN T. -TIle L-l00

Series organs may be equipped with ex-

tension speakers, externalinputs and

earphones.

1-23. E XTE N SION SPE A KE RS. - A Hammond

Model PR-40 Tone Cabinet may be used

as an extension speaker. A Tone CabinetControl Kit, PIN AO-21625-2 is required

for proper interconnections. Installation

instructions are Furnished with the kit.

1-24. E XTE R N A L SOU N D SOU RCE . -A recordplayer or microphone equipped with a

suitable preamplifier, ora radio, can be

played through the organ's speakers. The

device used should have an output level ul

about 1/2voll rms maximum, and shouldhave its own volume control, since the

organ volume controls will not affect the

signal. The organ may btl played at the

same time

and insert cable previously removed into

one arm of the '·Y". Connect external

sonnd source to the other arm.

1-25. E A R PHON E S. - In order to use earphones,

the output jack and network shown in

Figure 1-12:H~ required. When earphones

are in use, organ speakers ar c silenced.

argon

$pk.

Us .. Koss

Model

SP·3.

GN.

ten

lOW

BlK.

Figure 1-12. Earphone Adapter Circuit



SECTION II

THEORY OF OPERATION

2-1. GENERAl. - This section contains circuit

descriptions of the amplifier chassis, and

the percussion altacluncuts. There arcthree amplifier assemblies in the L-J 00

series instruments. On the upper shelf as

viewed from the rear, to the left is the

vibrato amplifier, towards the center thepreamplifier and percussion amplifier.

while the reverberation and power amplifier

is located on the lower shelf

2-2. PREAMPLIFIERS (See Figure 5-1). - The pre-

amplifier (YO receives all signals impressed

on the matching transformer secondary,which originate by use of the draw bars or

preset labs. Should any percussion tab bein llsc,a portionofthc second, third or

bout harmonics or the upper manual will

also appear In the inpul circuit of the per-

cussion amplifier which will bc discussed

further on

2-3. V IBR A TO PHA SE SHIFT A M PL IF IE R (See

Figures5-1 through 5-4). - The vibrator

system varies the frequency otthe tonesby continuously shifting their phase.

Circuit components include three series-

connected vacuum tube phase shifter stages

(V2A, V2B, and V3A), associated saturablereactors (SRIOl, SR 102, SRI 03), voltage

amplifier (V3A), vibrate oscillator (V4A),

and driver stages (V4B, Y5)

A single low frequency oscillator (V4)

provides the rate for the vibrato system

(approx. 6.8 CPS). With either the normalor small vibrato tab ill use, this oscillatorimpresses its signal on V4, a cathode fol-

lower and isolation stage. Positive pulses

now appear on the grid of driver tube V5

The plate circuit of this tube is in serieswith three saturable reactors located in the

plate and cathode circuits of the phase shift

stages. lrrespective of which vibrato stop is

used, the rate remains constant, but the

degree of vibrato is determined by the

amplitude of the positive pulse on thedriver tube.

The continuous phase shift is accomplishedby using 180· out-of-phase signals from the

plate and cathode of each shifter stage and

controlling them with the saturable reactors.

Plate and cathode resistors arc of equalvalue and consequently signals arc equal in

amplitude in each plate and cathode circuit.

The saturable reactors serve as a means ofproviding a varying composite of signals

from both plate and cathode of each stage,

ranging from virtually full cathode signal to

full plate signal

The driver tube plate current varies from

about .Sma to Sma. at vibrato rate. This

current varies the degree of saturation inthe reactor cores and results in a smoothly

varying impedance.

At minimum driver current (when the

voltage feeding driver tube V5 is negative

and driver tube is nearly cut off) the

reactor impedances are maximum and are

large compared to the 15000 ohm plate.circuit series resistors RI04, RIIO, Rl15

Therefore, under this condition most signalwill emanate From the plate. (The reactors

being virtually short circuited by the platecircuit series resistors) and phase shift will

be maximum approaching 180' - sinceplate voltage is 180· out of phase with grid

voltage.

At maximum driver current (when voltage

feeding driver tube V5 is positive und driver

tube is conducting maximum current) the

reactors arc saturated and their impedanceis a minimum <small compared to the 15000

ohm plate circuit series resistors R I04,

RIIO,RI15. Therefore, most signal will

emanate from the cathode (the saturated

and low impedance reactors virtually short

circuit the plate circuit series resistors) and

phase shift will be a minimum - approach-

ing O· - since cathode voltage is in phase

with input grid voltage

Between these extremes, the phase variessmoothly under control of the saturable

reactors.

The continuous change in phase is cqui-

2-1



2-5.

The output of the second half of V8 is a



phase il1v~rlcr driving push-pull output

tubes V9 and VIO. A feedback circuit From

the output transformer secondary (R336

and R337) makes the pedal response more

uniform by reducing speaker resonance

R336 is adjusted at the factory

2-6. POWERSUPPLY (See Figure 5-4). - The

power supply uses a 5U4reclil1..:r lube

with conventional filtering circuit.

2-·1. l-100A PERCUSSIONVOICING CIRCUITRY

(See Figure 5-5).

2-8. MODE SWITCH- With the "Mode Switch"in any 0 1 " the reiteration positions, the

harmonics necessary 10 produce the"Chime", "Guitar",and "Banjo" are all

fed into the "Avreiteration channel only,while the "Marimba" and "Xylophone"

effects feed harmonics into both the "A"

and the "B'tcharmels. This split into the"A" ami "B" channels only occurs with the

use of reiteration. without reiteration, all

effects are routed into the regular percussion

system, The two reiteration channels are

identical. You will note that across the

secondary windings of the two input trans-

formers is located a field-effect transistor

These gates 0300 and Q303, are fed alter-

nating pulses from a bistable multivibratorwhich supplies alternate pulses to each one

of these gates. That is; one is on, while the

other is off. These gates shuntthe signal

to groun"d,"""therebymaking the channelinoperative. These individual signals are

Iurthur amplificd by a one stagc transistor

amplifier, 0::;01 for the "Avchannct, an d

Q302 for the "B" channel. They arc then

mixed together and fed to a common

amplifier, 0307, which in turn Feeds this

percussion signal to the input side ortne

swell pedal. The multivibrator whichsupplies the keying pulse for these two

gates does not run continually, but rather

is turned off and on each lime a key is

depressedoo the uppur manual. The multi-

vibrator consists of 0305 and 0306. The

multlvfbrator rate varies with the applied

base voltage. This voltage is applied throughthe "Mode Switch" and R684 and R685

0304 provides tho necessary switch pulse

to start thcmultivibrator

NOTEwhenever the reiteration is used,

it completely bypasses the percus-sion section of the AO-42 amplifier

With the "Mode Switch" in the "Normal",

"Vibrato". or "Delayed Vibrato" position,

the various pre-voiced percussions are

routed to a percussion preamplifier made

up of 0314 and Q313. These amplifiedsignals are then routed inlo the regular

Hammond percussion system at the col-

Icctorof0201. With the "Mode Switch"in the "Normal" position all percussion

voices sound as normal; til at is, they have

no vibrato.

NOTE

To obtain the following vibrato

effects it will be necessary to de-

press one Or both of the VIBRATO

tabs

With the "Mode Switch" in the "Delayed

Vibrato" position, a portion of the percus-sion signal is taken from the input side of

the Expression pedal, and routed to a

voltage divider made up or R682anu R681.

This weak signal is fed to the base of 0312.

T t will be noted that the emitter of this

stage is not bypassed and that the output

of this stage is relatively low. During keying,

after a prcdetcnuined time lag (.5 seconds),

the charge on C631 is depleted by 0308

and 0309. With this charge depleted, 0308

and 0309 slop conducting and theirrespective collectors assume the supplypotential + 12V. ·illis + I'lV. from the

collector of Q309 is now applied to the

base 03l 0, thereby placing 031 0 and 0311inastateofconduction.With0311 now

conducting, C633 is placed across the

emitter resistor of 0312. This materially

increases rhe gain ofthis stagc, and as thepercussion is dying away, feeds this ampli-ned pornon of the fading percussion signal

through the "Mode Switch", and R683 to

the grid of VI A (Pin 2). There the signal

is amplified and fed to the Vibrato Phase-Shift amplifier. All voices so routed [JOW

appear with a vibrato tail-off.

2-3



2-9. FREQUENCY DIVIDER - When using the

"Chime"vuicc, it is necessary ro create n

1-1/4 harmonic for the proper reproductionor the "Chime" tone. This is accomplished

by routing the 5th harmonic into an ampli-

fier Illude up of Q315 and Q316. Q317

rectif'ies and Further amplifies this pulse

which is then fed to a two-stage frequency

divider. made up of Q318, 0319, 0320,

and 0321. The output of this second

frequency divider is then routed back to

the "Selector Switch", and is used as one

of the harmonics ill the 'Chime" voice.

NOTE

2-10. CYMBAL AND BRUSH - The "Cymbal-

Brush" switch when in the "off" position

disables the keying functions necessary to

produce the "Brush=effect. With the

"Cymbal-Brush" switch in anyone of the"on" positiuns, the 8th harmonic of the

lower manual is disabled and this harmonicbusbar is used for keying the "Brush" effect

TIle pedal signal (keying] contact is used toactivate the "Cymbal't effect each umc u

pcdnl is depressed.

2-1t. BRUSH KEYING - With the "Cymbal-Brush"

switch in any of the ON positions, the base

of 0322 is routed IlOW to the 8th harmonic

busbar in the lower manual. Anytime a keyis depressed, the base voltage of this tran-

sistor is routed to ground, and this stage

stops conducting. The attendant rise in

collector voltage is impressed on one plate

of C608. The other plate of C608 respondsby driving excess electrons off to ground

through resistor K624. The resultant posi-

tivc voltage is then fed throughD203 to the

base of" Q323, the "Brush" gate. To the base

of this "Brush" gate is also fed the noise

from the noise generator 0324. This noiseis now tuned in the collector circuit and

fed to the "Cymbal and Brush" amplifier

which consists of Q325 and 0326

2-4

2-12.

2-13. BRUSH AND CYMBAL AMPLIFICATION.-

After being amplified by Q325 and Q326, the

"Brush and Cymbal" signals arc routed to a

voltage divider consisting of R604, R605, and

R606. It is then lapped by the switch and

routed to R602 the cverallteve! control

This is located on a terminal strip 011 the

lower organ shelf, ncar the AO-43 ampli-

fier. The wiper oftho overall level control(RG02) now feeds into the AO-43 ampfi-

flcr through R601 and C318 to Pin 7 ofVS. To enhance the "Brush and Cymbal"

effects, a small high frequency speaker is

attached to the main amplifier. It is located

under the lower right hand end block onthe organ.

2-14. POWER SUPPLY, - Power supply chassis issupplied with +340 volts DC from AO-43

amplifier. +80 volts required tor percussion

assembly is obtained from voltage divider

R690, and R691. + 12 volts is obtainedfrom zcocrrxooe u z o t .

2-15. L-1DO-1 SIX·VOICE PERCUSSION CIR·

CUITRY. -

2-16. POWER SUPPLY {See Figure 5-1i,-

Power supply components arc located in

the power supply chassis assembly (127-7



2-17.

2-18.

2-19. PEDAL K EYIN G C IRC UIT (See Figure

5-6). - A signal or approximately 75 mV

2-5



SECTION III

DISASSEMBLY

3-1.

3-2.

3-3. rcmovc un

according lupper manual key

the following.

3-4.

3-5. DRAWBAR CON TAC T SPR ING . _ To removea drawbar contact spring proceed according

to the following

CAUT ION

3-6. D R A W B A R , D R A W B A R K N O B S O R D R A W -

BAR ASSEMBL Y . - To remove any of these.

proceed according to the following

a. Remove four screws which secure metal

h.

unsolder all connecting wires

3-1



3-7.

3-8.

3-2

3-9.

3-10.

motor

3-11. PEDAL KEYBOARD. - 1'0 remove pedal

keyboard proceed according to the

following.

b.



3-12.

3-13. TO REPLACE A BROKEN TAB. - Proceed

according to the following.

3-14.

3-15.

3-16. S IX:VO ICE PERCUSS ION C IRCU ITRY .L -1DD-1

The power supply. 127-000007 and pedal

control board assembly. 063-042051. are

mounted on the left (rear view) wall of the

console.



SECTION IV

PRACTICAL SERVICE SUGGESTIONS

4-1. GENERAl. - This section contains perform-

ance standards, adjustment procedures, and

troubleshooting information

NOTE

4--2. O RGAN PERFORMANCE CHECK. - T o

prepare the organ for performance check

proceed according to the following.

NOTES

At certain steps in the following

procedure, conditions other than

above mny be specified. Return

controls to above conditions as

each step is completed.

4-3. EQUIPMENTREQUIRED.-

4-4. PROCEDURE.-

output range

b. Maintain conditions of step a. Depress

VOLUME SOFT tab. Output should dropto range of 0.69 to 0.9 volts rrns.

c. Set pedal drawbar at positicn 8. Depress

lowest C pedal. Output should be between

4VandS.5Vrms.

d.l\'iaintain conditions of srep c. Depress

VOLUM!:: SOFT tab. Output should dropto 0.8V to I.SV nus

e. Retum VOLUME SOFT tab to "up"

position. Maintain other conditions of

step c. Play all pedals to bc sure output

changes smoothly from note to note.

f. Make upper manual preset listening check.Hold down P, A, C chord near center of

upper-manual.1. Trumpet. Set up upper drawbars to

00 6688 888. Press TR UMPET preset

and then UPPER DRAWBARS preset.

The musical quality should be identical

2. Clarinet. Set lip Lipper drawbars to

008080800. Press CLAR[NET preset

and then UPPER DRAWBARS preset

The musical quality should be identical.

3. Full organ. Set up upper drawbars to868868446. Press FULL ORGANpreset and thc UPPER DRAWBARS

preset. The musical quality should be

identical.

g. Make lower manual prexetlistcning check.

Hold down F, A, C chord ncar center of

lower manual.

I. Set lip lower drnwbars to 6644 222.

2. Press ENSEMBLE preset and then

LOWER DRAWI:lARS preset. Thc

musical quality should be identical.h. Percussion cutoff control and output

checks.I. Cut-off. With only THIRD HAlU,oJQN-

rc, FAST DECAY, and UPPERDRAWBA RS tablets depressed and

all drawbars pushed in, hold down

lowest C key on upper manual and

adjust percussion cut-off control on

preamplifier chassis to point at whichoutput signul is just barely audible.

2. Output voltages. With only UPPERDRAWBARS and SECOND BAR-

MON[C tablets depressed, press lowest

C key on upper manual. Output volt-

ages across speakers should be between

4 I



come more pronounced.

or too broad

4-5.

4-2

1 _ 1 " " 1 _ . .1' j " . '

---

Figure 4-1. Vibrato Adjustment Waveform

k.



I f an oscilloscope is not available, make the

following listening test.

Depress FULL ORGAN tab. IIold down

F, A, C chord near center of upper man-

ual. Depress VIBRATO SMALL tab and

observe vibrato effect. Add VIBRATO

NORMAL tab and observe increased

vibrato. Add VIBRATO CHORUS tab

and observe that vibrato effect becomesmore pronounced.

4-6. l-100A PERCUSSIONPERFORMANCE

CHECK. - To check performance of

L 100A percussion unit, whether factory

installed, or added as a kit, proceed accord-

ing to the following.

11. Selector Switch Operation

I.With selector switch in DRAWBARS

position, cymbal-brush switch OFF,

mode switch in NORMAL position,

organ function should he normal.2. DRAWBARS position- with upper

manual DRAWBAR tab depressed and

holding down middle C key, pull out

all drawbars in order, starting with the

highest one. Note that pitch of sound

goes down each time with Ihc cxcep-

non of sub-Srd drawbar. Return upper

DRAWBAR tab to OFF

3. Percussion level- with mode switch in

VIBRATO position, selector switch in

Marimba position, lower manual D R AW -J 3 A R tab depressed and lower draw barsregistration 8800 000 and swell pedal

maximum loudness, the level is checked

by comparing level of upper manual to

level of lower manual when depressing

middle C and E keys in a percussive

manner. Level should be approximate-

ly equal. Variation heard in level in the

reiteration, normal, and delaved vibra-

to positions or the mode switch arc

normal. Notice a decrease in level when

PERCUSSION SOFT tab is depressed

in all but reiteration modes.4. Percussion voices of the selector switch

arc checked for harmonic content by

comparison with lower manual regis-

tration. Play middle C and E keys

except when comparing chimes which

should be checked using middle C key

only.

5. CHltI-fES should be identical to drawbarregistration 0888 000, except that

1-1/4 harmonic will be missing from

the drawbar registratton

6. GUITAR should be identical to regis-

tration 8088 800.

7. MARI~'l[JA should be identical to reg-

istration 8800000

8. XYLOI'HONEshould be identical toregistration 8080000

9. BANJO should be identical to regis-tration 0888 800.

NOTES

When the harmonic is used

the percussion voice, then

responding drawbar on tho uppermanual and (keying) drawbur#8will be inoperative

In CIllMES position, drawbar #7will also be inoperative.

In VIBRATO & DELAYED VI-BRATO positions of mode switch,

all percussions will have the long

decay time (3 seconds).

b. Mode Switch Operation (Vibrnto

Functions)

I.All control panel tabs and drawbars

in OFF position.

2. Selector switch to GUITAR position.3. Mode switch NOR!'.-IAL position - play

chord on upper manual and noticeabsence or vibrato effect.

4. Mode switch to VIBRATO position,depress vibrato normal tali - play chord

on upper manual and notice vibrato

effect.

5. Mode switch to DELAYED VII:lRATOposition - play chord on upper manual

and Notice that vibrato effect begins

approximately .6 of a second delayed

in time, after chord is pressedc. Mode Switch Operation (Reiteration

Functions)

1. Selector switch to CHIME or GUITARposition.

2. Mode switch to FAST position, andpressing key on upper manual produces

a reiterative scundvrepeating lit therate of approximately 11.2 HZ.

3. Mode switch to MEDIUM position-

playingas above, produces a roucra-

tive sound with rate of approximately7.7 HZ.

4. Mode switch to SLOW position - play-

ing as above.produces a reiterative

sound with rate of approximately

5.4IlZ,

4-3



5. Notice that if selector switch is turned

to lIIAR1MBA or XYLOPlIONE posi-

tions,1I reiterative sound 01 ' dilfcrcntquality is heard. T)1\.\ twoharmonics

used in these voices arc tumcd on and

off at opposite timex. This is known as

"alternate reiteration"

d. Cymbal-Brush Switch Operation

I. With lower manual DRAW BARS tab

switch depressed, and CYMBAL-

BRUSIl switch off, lower manualdrawbars should function normally.

2. With CYMBAL-BRUSH switch to any

on-positioJl,drawbar#7 will beinoperative.

3. With lower manual DRAWBAR tab

up, nnd Brush & Cymbal switch il l

LOUD position, depress BRILLIANCElab, playing any lower manual key

repeatedly (other than highest 6 keyson rlght-side of manuals). The result

should he a percussive hiss sound 011.0 V ± 3 db rms measured across

12" speaker leads. RG02 TIl"->,be

adjusted to obtain the proper levels.

R602 is located 011 terminal stripassemblY,i\O 31213 I.

4. With Cymbal und Brush switch in

LOUD position, play anv pedal repent-

cdly, and notice percussive hiss sound01"1.25 V± Sdb rrns.

5. Notice that when BRILLANCE tab isturned off, volume of Brush and Cym-ba) is decreased

4-7. L-l00-l SIX·VOII::E PERCUSSION PERFORM·

ANCE CHECK AND TROUBLESHOOTING.

4-8. OUTPUT LEVEL ADJUSTMENTS:.- The

rhythm volume levels are set at the factory,

and will normally require no adjustment. In

cage it is found necessary to rcptace a parton the rhythm board, 124-0001 14, adjust-

ment will be required. To adjust outputlevels, proceed according to the following

A VTVM, Millivolt Commander, Model

870, or equivalent is required. See Figure

5-6 for locations ofcontrols.

4-4

4-9. ONE VOICE IS SILENT. -Check thefollowing;

a. Connection to corresponding pin of PWB,124-000114, See Figure 5-6.

b. IfconnccliOllsO.K., check for +15 V DC

at pin when push button of missing voice

is held down

c. If voltage is missingcheck connections

to push button SWitch, rocker tab, andrhythm power supply.

d.Tf voltageis present, trace associatedvoice circuitry.

4-10. PROGRAMMED VDtCE DOES NOT SPEAK.-

If any voice speaks when push button is

pressed, but not from programmed source

(manual or pedal, as applicablcjchcck

rocker switch and associated wiring. Sec

Paragraphs 4-13 and 4-14 also

4-11. All PERCUSSIVE VOICES SILENT. - (Hiss

voices speak.) Check QI07, QI08, and

associated circuitry

4-12. 80TH HISS VOICES SILENT - (Percussive

Voices Spcak.] Check Ql06 and associated

circuitry. Check QIOI.

4-13. NO VOICE RESPONSE FROM PEDALS.-

Check pedal keying pulse circuits. Para-graph 2-19.

4-14. NO VOtCE RESPONSE FROM MANUAL.-

Check manual keying pulse circuits. Para-graph 2-18

4-15.

4-16. TROUBLESHOOTING.



4-1 7 . ORGAN DOES NOT PLAY.-

a.ifthegencralormotorisnottumingand

the tubes do not light when the switch is

in the "on" position, check the power

wiring, power switch, line cord, line cord

plug, and wall outlet.b. If the generator turns and the tubes light,

but no sound can be obtained with all

call troIs in playing position, the most

likely source of trouble is the amplifierIn most respects this is a conventional

amplifier circuit, and the schematic diu-

grams, Figures 5-1 through 5-4, will

enable the service man to locate the

trouble.

4-18. KEY DO ES NO T PLAY OR HARMON IC

IS M IS S ING . - This may mean a dirty key

coruact;a broken connection, or a dead

note in the generator. The steps below

will serve to isolate the trouble.

a. Ordinarily only one of the several frequen-

cies used 011 the key will be missing. This

can be determined by holding the key and

operating each drawbar for that manual,

observing on which drawbar the key failsto play. Reference to the manual wiring

chart, Figure 1-7,will tell which fre-quency number is missing.

b. Sec whether the same frequency is miss-

ing where it is used on other keys of the

same manual. The wiring chart will tell

with what other key and what other

druwbar you should get the same frc-

quency. If it is missing on one key but

not on others, a key contact is probably

dirty. In SOllU: cases it may be clearedby striking the key 15 or 20 times in arapid staccato manner to loosen the dirt

If this procedure is not effective, adjust-

mont of the busbar shifter for that manual

will dear it. (See paragraph 1-5.) This

will slide the busbars endwise so they

present a dean contact surface. In extreme

cases, itmay be necessary to hold down

the faulty key while making the

adjustment.

c. If the frequency is missing on all keys ofone manual but not on the other manual,

look for a break in the cable connecting

one manual to the other.

d. If the frequency is missing on both

manualsv check the manual-to-generator

cable or the generator itself.

e. The output of any single frequency onthe tone generator may be checked by

pulling out any drawbarand connecting

a dip lead from the back end of the

drawbar to the generator terminal in

question. Sec figure 6 for location of

all generator terminals. ll the generatoris all right, the note will play loudly.

CAUTION

Neve r test the tone generator

with an outside source of current

such as a continuity meter, as

serious damage may result to

the sensitive filter transformers

and permanent magnets. By the

above method, all necessary tests

of the tone generator may be

made with the current supplied

by the generator itself.

f. If it fails to play, try touching the clip to

the input side of the filter coil (not the

grounded tap) nnd theinput side of the

filter condenser {Figure 1-6) in order tocheck these parts. Disconnect. the con-

denser to eliminate the possibility of a

grounded transformer. if the signal is

still missing at the magnet coil terminal,

it means that the tone wheel is not

turning, the coil is defective, or themagnet is not properly adjusted.

g. If the tone wheel is not turning, the

frequency of rhe other wheel on the

same shaft will also be missing (withthe exception of' u Few wheels which

are alone). Of the generator magnet

location drawing (Figure 1-5), the two

frequencies whose numbers are connected

by a dotted line arc on the same shaft.

Another way to check the wheel is to

remove the dampening pad under thegenerator (it is held by the two long

channels which form the generator frame)

and feci the wheel with your linger to see

if it is turning. Each wheel is located di-

rectly behind its magnet. shown in

Figure 1-5

h. If the magnet coiJ is detective, the

generator must be returned to the

factory, as replacement ufa coilnecessi-

tatcs dismantling the entire generator.

It is possible, although unlikely, that themagnet may have become loose andmoved so far from the wheel as to make

the note inaudible. It may be adjusted

as described in the following paragraph.

4-5



SECTION V

DIAGRAMS

5-1. GENERAL. - This section contains schematic diagrams to illustrate the text and provide information

necessary to proper organ servicing.

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SCHEMATIC DIAGRAM

AND PARTS LAYOUT,

L -l OOA PERCUSS ION UNI T



FICURES-6.

SCHEMATIC DIAGRAM

AND PARTS LAYOUT,

L -IOO-J S IX·VOICE PERCUSS ION

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FIGURES-6A

SCHEMATIC DIAGRAM

ANDPARTS LAYOUT,

L-I00-1 SIX·VOICEPERCUSSION,

EARLY 1970 PRODUCTION

5-8



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Z02-1121lOO4-Q7 2& ,..24 GA. S .C . 5 1 1. 1 0 WIRE

r - _ !, - -+ : : : 2 O l ~ - 0 4 0 C 0 4 - 0 ~ = : = - ~ 7+-'2C=7~.::!"l:::::4~GA. . C. S I1 .I O WIRE

2'1'1-220002 28 112 2 GA . S . C. S a .. I D W I REYEL

:J11-Q4Il~~ 2'1 WIRE & PIN A S S EM l L Y (lilA

015-033302. 30 RaslN C ( J ! E SOLOEJI

n n- -fIUL~V1."

R7

lOOK

RIO

10K

.1HFD

T O I NP UT O F

A U TO M AT I C R H YT H M

ASSEMBLY

RD T9 cs n"_-- .....-_--aTO OPE N T E RMI NAL 6----~r-----oTO OPENE RM IN AL IN

1.0MEG ( 8E TW EE N G RI I & GRA WIRES) S2p! POWER AHPl. IF IER PLUG

IN P RE AM P . P ER C. S W I TC H

PLUG.

TI l

"_--QOUTPUT T O T E RM .

NE" O N P .C . B D .

RI24-ooo114

- ~ - - = . .J"-1"_lL_t .

r - = Z , ! S V. N V V \ = - l~ I.SV",.1

0----. fRI 0 01 -0 21 1 "

0)

R8

2.2m

FROM PIN NO. 15 ON

BOARD 1 t124-000114

RIS

IS"-

T l • T 8

TO POWER S UPPL Y PLUG

T E JI II I . .. 2

TO P . C . 8 0 . • 1 24 -0 00 11 4

( TE RM . A '2 1)

0 63 - 04 2 05 1 A

FIGURE 5-8.

SCHEMATIC DIAGRAM

AND PARTS LAYOUT,

PEDAL CONTROL BOARD

5-10



REVERBERATION AND

VOLUME SWITCH ASSEMBLY

t

r o s TON LNG ~R OU TNG OF W!RES~

c "e~ES FOR C! ~ ArY ON ~Y

PI~OT

LAMP

sccxrt

VIBRATO SWITC.H

ASSEMBLY

PERCUSSION SWITCH

ASSEMBLY

GREY KEYINGW IR E _ _

lU PP ER M A NU A L P RE SE TSWITC.H A55EM.BLY

I

L OW E R M A NU A L P RE SE TSWITCH ASSEMBLY

RED

'!16,RATO sw· CA~L.E

PERC,VOLUME CABLE. ""-----------------1 1-----------------------.,

I I

1,

INPUT

1

REVERB, ERAT IO N SWI CH CABLE

VIBRATO MfPLlFIER

r

~'~POWER

~6 . . Y

I

RE.~~CLEAR

C J ! J l· 1 I ' "

VI~11:H

~.. .0

3 :a::<ID

'":JtCl

.J-c:>z<I

'"!.W...~,

~

BL B~

o

1

U PP ER M A N UA L I lOWEB M6NUAlD RA W B A R S QRAWBARS

~I~

~r=~Fr=Fj:FF ~ r = ~ ~\- \- H --1 \--1-< I-':

Iii

\-\-\-

PEDAL DRAWBAR

I- I-

EXPRESSION

PEDAL

DRAWBAI\ ASSEMBLY

WH 6 Y VI O I L 6 NY ORREOBH 6Y \(!O i L 6NYEL O RR rn I I !

~~~~~ JiV ~ y _ y - ~ , Y ) J Y ~~

\

J3K

GROUND .

LUG ON

UPPE'Rr.!ANU ....L

F R A M E

_ _ l' E cR C U5 S IO N C A BL E

r::===I::::::l' 1 = , = = = ' - -....-------,-----------1 f-----+---li f-- ,PERCUSSION ~ PR.EA,MPUFIE.R

6~~1

JJ I n I ' _ J

< : > ' 1 t ~ rPErc::5W.

BEVERS< POWERA M P U F r : J

G e8e2 .BH 7 IZ .. ..X7 J2....X7886SQ5 6 !1 Q5OTOR J

--_--- -C ....PACITOR POWER TERNINALS POWE

REO /:.:::. ON GENE.RATOR ~WITCHI_ - - - - -- -- -- ~ - - -- -- -- J - - - - - - - - - - . _o" -= ,{",F _l} Q 'o C' I" J ~ iT 0 \0 N 0 m 1.0 \0 n . .a _ " -00 N N Q C' It) -d NN ~ .." \n _ N<0 ' I .r •NCH!3'-" . -- I r--aJ r) \0 1.0 cD gJ N t r' J . ;- r - - . . . ! ) "" \( Q . N 1.0 oJ oD cry IQ ' C f ) "" " 'I pJ 0.,0 W') cc OJ N '1 .0 ~ r - - . . ' U " l . . , ., \ dl q N W - I ~ ~ J

~ ~ f i r ~ L ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ - a - ~fREQUENCY TON E G E NE R A TO R IIN MBE.IIS Il..=

RED

I 0

(0.50t POWER

I

6Y

PE:DAL

LI fLTER

'--

~n~LJ6N

!lASSSP E . . K ER

TRE .BLESP[AKER

5Y- ; : = = = ~ ~UTPuT

REVERBUNIT

TfPE4L

REDr ; : . = = = ~ !NrU:r

FIGURE5-9 ..

WIRING DlAGRAM,

L-IOO ORGAN

5-11

~---.---.----. -------- . -.----~

I ' .I

I 13 J 1 2 . ! 1 1 1 10 9 1, 8 7 6 5 4 :3 ! a "' j ~ I 'I

I ~~~~f-1i1_ f-I~ ~f-~f-~ ~f-~e--~f-~>-"-~ IL ._ ._-.-.--__

PEDAL SWITCH ASSEMBLY



POSITIONING

c....l ES fOP !

I

R E VE R BE R A. T IO N A ND

VOLUME 5WITCH ASSEMBLY

I

,--

PILOT

LAMP

50C~[T

I lCI R6UT IN G O F WRES( I( ARI T ! O NLY

~ II , I

I1

I

I

IV5 ~MTTEl)HIe.~~TO ""~T

1 , " , UTO"""TlC. R I I ' ) I f I' . I o I C O~ T O R DO ~ ) rot.«J· 47

DT UT ~ \!4HPU;tll

I

ICEvE.l reUTlot / . ! I""Tt~

-

MODEL L-lOO -Z ONLY,----1

IIIIII

I

IL _ _

"UTOII,TIC-

R~YT\lM

CO)l IRQL , . , < , , ": , ' )1

A .U T O M l IT I C

RI\YTHIJ\ ....1C.E.~

<::ENI!RA1OR

...rOMI>TIC

!I.I\(THM II

--='__jI IODtL \ : IOCH 01-1\ ' (

CONNEC.T 10 R\\,,'ffiI", 6u!>5

1~1,_I:M"!-IO" .

INO

"LOCI(

R I I Y T i H W I

...... '1

~ND

8uxl(.

" ' l ImM.1lO"1UI

1-

PI:D"L

CON.RO\.

SO..O

,..----- --_-----~----,

VIBR".TOSWI TC H

ASSEMBLY

PERCUSSION SWITCH

ASSEMBLY

GREY ·KEYINGWIR E -. -

PE."iCU~ ,ION CAeU

- - - - - - ~ - - - - - - - - - - - - - - - I

UPPE.R MAI"U.A.L PRE;,E rSWITC.H ASSEMBLY

LOWER MANUAL PRESET

.sWITCH .4;S5 EM5L Y

VI!U0 ~w- ~A!l

V I B RATO AMPLIfiERAO 41 0 R AO·47

I.1.1

:1

cULE

..----------_.- -__--------- - ._- - -----

PERCUSSION 4 PREAMPL I F I E . R

POWER.

PERC.C.UT- OFF ~EIl

@0)

LOW ER MANU . AL BUS BAR WRES

RED

EXPRESSION

PEDAL

AMPLFIER

T30Z

GROUND

LUG ON

UPPER

MANUAL

f "RAME

------- --------------------------+---------------------~

"PEDAL SWITCH ASSEMBLYTR"P~ c o .6 ~ ~

PEDAL F TER CHJKE(ON !>I>C< OFMM!~L ~"At1E)

B A . S 5SPE",K(R

TREBLESprAKER

"H:_vER~UNIT

TY~ E. 4 1

0 94 -0 24 47 7 E

FIGURE 5-10.

WIRING DIAGRAM,

L-' -lOO-l AND L-I00-2 ORGANS

5-12



FIGURES-II.

WIRING DIAGRAM

CONTROL PANEL, L -IOO SERlE



• V I V ~ . . .. , ..,,THESE PLUGS CONNECT THESE. PLUGS CQNNE.CTYEL eUSSES

J lTO PERC• .; PREAMP TO 'lII!>RATO "M.P.

BL CHASSIS-

I \" '"-,

~

SL

GN GN,-.---

IIIJ

TOP \ EW OF CONTROLSL dJl

SI,JITCHE$ SHOW,NG BOTTOM -c

r uao.w OF LUGS AND WRIN6.<11

GN : - &L;J

u V I I I ;tJ It j t: f YEL

I:!

:;::0 I~.

0TO ....0

tVI )tEL a: z

rl ~ r:r

LOWER VEL r=OR Q F- I~ . q -a

IJLJ

OR. GYMANUAL

~ ~ I~ I f ! ! - g --q ~RAWBARS - - - - - - - . . BL I--. po-- ~ ~ ~ ~ 1REO aN ~.

! ~N ~~ .. . . . . , w

n '"J <11BN

[! r-{i 12 I-- dl c ;;I::.e <t

I I ~I I t jo

I I Iz

Gy. ~

)W

'""lYEL 3'

::><.

IIIW

'": 0 ..J w

TO UPP (R < Z pl Wo

MANUAL d ) : r a: . . . .DRAWBARS ~ w \,) <I: ..J

'< :£ • cO dl

0:J

V "-,

a:c n::\AI

IJ>- 0:: w )W...J 11) UJ o . _ : : > J ~

0..0( a.. <tI v0..:> 0..J t::)Z f- CL -c

~<tOJ

oJ

T - 5 P lU O CONNE r TS THI~ Pl.J~ COIIJNEcrS 1- : :1; '- w r:t

L-c 0

TO ~OWEI < . M~UAL TO UPPER M~NUAL GN ,III !< I'"'

--

BU!.Mf:S eUSeAR~ III III ..J a:;

lY 0 dl

Ir:> sU

~- Ia:;uJo,

II -

II

. , J !iI

~~

I I

r ; ~ J I )

! dSilEI..D

6N 1 1

I Ie

-Ii" d. . . JW >-

iWH

>- II) <!l<!l ;>-

VIC HI·

i~~ ~~ '~ ~ l ~ 1~ g r ~OPVIEW OF CONTROL S\-\ ·TCHE.S - -,

h J-

I j[_ I~L I

I t~ SHIELD SHIELDHOWNG TOP RO",OFLUGS ANO WRIN6. GY

I~ .Ri'~

OR~· , ' 1 15L OIL

tl~:1ill REO -E i BN .

6N

~~~4 )4 ~II

~EL"- " " 4

~N II REOBI':

C_EAR I ct i CLEAF!6Y C ! i i III

I -I I

"p l !A w eA ~ S [ N S [I o I6 L [ 1- I D ~ A . . e.ll!S I~ IR UMPET ' i j ' C I .~ I II N E T· F l Jt L 0 1 1' 1 11 I i i SECOHO THIRD'

JJW! !I IOM" HAR" J (

L___~_~ '<, 1 , .J----.---l

.:»<:> '\"'~~J ... ./

MODEL LO I CONSOLES SERIAL NO.39474 At- .:DA50VE

M~X!EL L02 ( / )NSOc .ES SER ,A L. NO. 42527 AND AaCE

MODE:... LH\~· :.-~"·;S·~~ES :;O,ER~L ;;-).43(95 ,\f.[) ;1 0 . ~~

101JdI-c!J

)-(J')

~ ?i

I ~

0 IIi

I '

DUM,; :6HllUhCE:

SOFT

trV)

W. . .J

\ «J :z

I . O Q . .3 < t :,:::

- . . J « :50c . . .o ' f- ~

a:f- <rW« WW

s :~ ~ z0-

~ t t !.>02 02f-O r- 0

P~OT

, -~MP

POWER

SWITCH

~--------------------~



5-16



Figure 5-15, Parts Layout AMI Vibrato Amplifier



Figure 5-16. Parts Layout A047 (126-000023) Vibrato Amplifier

MODEL LIDI CONSOLES SERIAL NO.41622 AND ABOVE



8. Parts Layout, A~3Figure 5-1 r Amplifier

026-000017) Powe



P I L O T

L M ' 1 P



SECTION VI

L-SERIES PARTS LIST

CON TRO L PAN EL AS SEMBLY

Stop Switch Base

Manual Stop Switch Assembly

Pre",! Switch Assembly (Lower Manual)

Pre",! Switch A",embly (Upper Manual)

Percussion Switch A",cmhly

Vibrato Switch Assembly

Reverberati.m, Volume, Brilliance Switch Assembly

LOWER MANUAL AS SEMBLY

UPPER MANUAL ASSEMBLY

Playing Keys

GENERATOR & MOTOR ASSEMBLIES

PEDAL KEYBOARD & SW ITCH ASSEMBLY

Terminal Panel Assemhly

Terminal Panel AssemblyKey Channel Assembly

Key Channel Assembly

PREAMPLIF IER ASSEMBLY 1 17 -000009 ( AO -42l

V IBRATO AMPLIF IER ASSEMBLY 126 -000023 (AO -47 )

POWER AMPLIF IER ASSEMBLIE S 1 26 ·00001 7 ( AO -4J)

Power Transformer A"cmhly 120V 60Hz

Power Transformer A",cmhly 120V 50HzPower Transformer As..~ell1bly 234V 50-60H~

Output Transformer Assembly

Tube,

PE R CU SSION PR E SE T A SSE M BL Y (L 1DD A)

Power Supply Ch ass is

Speaker Assembly

Marked Endblock

SIX ·VOIC E RHYTHM ENOBlO CK

Rhythm Printed Wiring Board Assembly

Lower Righ t Hand E n db lo ck A s semb ly

Power Supplies

Pedal Control Board A"emhly

INDEX

6-3

6-3

6-3

6-3

6-46-4

6-5

6-6

6-6

6-6

6-6

6-6

6-'1

6-9

6-9

6-9

6-10

6-10

6-10

6-10

6-10

6-11

6-12

6-12

6-1



AUTOMAT IC RHYTHM ASSEMBLY (RHYTHM II DRAWER)

Control Asscmbly

Voice Generator

Wire & Plug Assernbly

WOODWORK

L111-!

Ll12-!

Ll22-1

L212-1

L222-1

MISCELLANEOUS

Callie Assembly (Generator To Manuals}

Revcrbcrurion Unit Assembly

Endhlocks

Speakers

L-200Purts List Index

6-13

6-13

6-13

6-13

6-13

6-13

6-13

6-136-13

6-13

6-13

6-14

6_14

6-14

6-14

6-14

6-15



CONTROL PANEL ASSEMBLY 120-000011

Panel Assembly

Stop SwitchBase

Screw(StopSwitchBa",Mounting)

"S" CUp (For Control Panel Switch Cover)

Line Switch

Lampholdet Assernbly

Lamp6_3V

Pilot Light Lens

PushonOip(ForuLls)FeltWasher

AluminumFoilT3pc

Shim (For Line Switch)

Screw (Control Pnucl Mounting -10 U:;ed)

Wa,her(UsedonControlPanclScrem;-10Use<l)

ManualSropSwilchA!;sembly

Mounting Bleck Assembly

Contact Spring Assembly

StopSUi!e

SropChanncl

Drawbar Stop

#4-24~3/8 Round Head Screw (Dmwbar Knob Mounting)

SrampedSlopKllob 16'

StampedStopKllob 8'

Stamped Stop Knob 5-1/3'

Stamped Stop Knob 4'

Stamped StopKnob 2·2{3'

Stamped StopKnob 2'

Stamped Stop Knob 1-3{5'

Stamped StopKnob 1-1/3'

Stamped Susp Kneb I'Stop Knob c Black (E<rrly Producnon OnJy)

Stop Knob-lvory(Early Production Only)

Stnp Knob_Brown [Early Production Only)

ClampSl,ring

Tem,inalLug

Twisted Pair & Cap Assembly (Console Output to Preamplifier)

#2 Binder Head Macbinc Screw (For IlnIwhar Stops)

PRESET SWITCH ASSEMBLY (LOWER MANUAL) 008·024391

Switch Panel & Bracket AssemblyCanceluverAssembly

MountingBracket

uvcrMoull1ingBMlckel

ControITpb(Drawbars)

ControITab(Enselnblc)

Plastic Tic

TubularOip

Shaft

SpringWnsher

Sems.RolilldllcndMllchineScI"ew

Flat Head Machine Screw

PRESET SWITCH ASSEMBLY (UPPER MANUAL) 008·024392

Switch Pand & Bracket Assembly (Drawbars, Trompet, Clarinet)

SwitchPallel&Brncket~mbly(FunOrgan)

Cance1LinkageAsscmbly

061·027350

041·025778

823·041714

013·024298

008-{)34791

016-034440

016-022885

013·031468

039·031450

033·043006

999·000061

120-000041

063-{)25776

028-032049

025·027829

025-040198

901-030514

031-034331

031-034333

031-034337

03J-034338

031·034339

031·034340

031·034341

031·034342

031-034343025-035570

025-035571

025·035572

012·027613

007·022320

011-036624

84(,..010414

008·024614060-037187

035-024205

035-024335

031-036481

031-036482

013-031744

013·028002

020-037240

999-000151

821-040314

839-040214

008·024613

008-024626

6-3



Mountiug Jlrackct

Lever Mnunting Ilrackct

Control Tab. (Orawbars)

Control Tab. (Trumpct)

Control Tab. (Clarinet)

COlllrolTab. (full Organ)

TubularClip

SI1.1ft

SpringWusher

Terminal Lug

Sem,. Round Head Machine Screw

035·024205

035·024335

031-036481

031-036483

031-036484

031·036485

020·037238

999·000151

007-U35151

IHI·040314

PERCUSSION SWITCH ASSEMBLY 008·024393

SWITCH PANEL & BRACKET ASSEMBLY

(SECOND HARMONIC, THIRD HARMONIC) 008·024615

SWITCH PANEL & BRACKET ASSEMBLY

(FAST DECAY, PERCUSSION SOFT) 008-024617

i\fountingBrackel

LeverMounting6mckct

Control Tab (Second Harmonic)

Control Tab (Third Harmonic)

Control Tab [Fast D~cay)

Control Tab (h"ClIssiol1 Soft)

SpringWu'her

TubularC!ip

Shaft

Terminal Lug

F1aIHeadMachincS"rew

Sems. Round He:Jd Machi,!e Screw

Resistor 2."Ulleg R409

ResiSior 4.7Sl R410,R411

035·024205

035·024335

03)-036486

031-036487

031-036488

03I-0364!l9

999·000151

013-028002

007·024137

839-040214

821·040314

6QO..021291

600--021561

VIBRATO SWITCH ASSEMBLY 008-024394

SWITCH PANEL & BRACKET ASSEMBL Y (VIBRATO SMALL) 008-024616

SWITCH PANEL & BRACKET ASSE!VIBL Y

(VIBRATO NORMAL, VIBRATO CHORUS) 008·024617

MountingRruckel

l.e,·erM()unlingBracket

ControITah.(VibratoNormuJ)

ControITah_(VibrntoSmall)

Control Tah. (VibrntoChorus)

PbsticTie

Terrnhial Lug

Shaft

Tubular Clip

Spring Washer


Re,i,lo1" 2.2Meg R403

Re,i,[or 3.9Meg R404

Resistor 6.8:'>-\cg R402

035~24335

031-036490

031·036491

031-U36492

013-031744

007-024137

020~37238

013-U2S002

999-000151

839-040214

600·021291

600-021351

600-021411

REVERBERATION, VOLUME, BRILLIANCE SWITCH ASSEMBLY 008·025549



Switch Panel & Bracket Assembly (Reverb J)

Switch Panel & Bracket Assembly (Brilliance)

Mountinglkllckel

LcverMounlingBrllcke-t

Control Tab. (REVERB I)

Control Tab. (REVERB II)

Control Tab. (VOLUME SOFT)

Control Tab. (BRILLIANCE)

Plastic Tie

Shaft

Spring Washer

Tubular Clip

TieStrap


Serns. Round Head Machine Screw

Resistor lOOK &407

Resistor 270K R406

Resistor 820K R405

Resistor 4.7Meg. R408

CapacilorCerarnic . 0 0 1 5 1 1 ' + " C402

Capacitor .0220 C401

Shielded Lead Assembly (Vibrato Chorus Cabte . Blue Plug)

Shielded Lead Assembly (Percussion Volume Cable· I{ed Plug)

Shie1dt"d Cahle & Cap ll",embly (Vibrato Switch Cable)

Shielded Cable & Cap As:;embly (Reverb Switch Cable)

008·024604

008·024610

035·024335

031·036493

031·036494

031·036495

031·036496

013·031744

020·037239

999'{)00151

013.{)28002

041.{)27176

839.{)40314

821·040314

600·020971

600·021071

600·021191

600·021371

425·010542

401·020342

011·034752

011·036621

011·036622

PERCUSSION CABLE ASSEMBL Y (PERCUSSION CABLE) 011·036640

CABLE ASSEMBLY (LOWER MANUAL PLUG) 011·036749

CABLE ASSEMBLY (UPPER MANUAL PLUG) 0'1·036750

LOWER MANUAL ASSEMBLY 119·000045

UPPER MANUAL ASSEMBLY 119·000009

Switch Cover Assembly

Top Cover Assembly

Key Comb Assembly (12 Keys)Key Comh A,,,,mhly (8 Key,)

Key & Channel Assembly (Sharp Key)

Key & ChannelAssembly (One Set of Seven Ivory)

Bracket&Channc1 Assembly

Sems. Bind Head Machine Screw

Sharp Kcy - Black

Natural Kcy_fvory "C"

Natural Key-hory "D·'

Natural Key c Iveryvfi"

Natural Key- Ivory "F"

Natural Kcy-Ivmy "G"

NnturaIKey-Tymy"A"

Natural Key-Tynry "B"

Natural Key - Ivory "CX" (Last Key on Manual)

Mounting Rrackel Left Hand

Mounting Bracket RighlHanll

StrainRc1ief

Screw(K ...yComh)

060-033397

060-033405

057·045053057·045052

060-024286

060·033392

850·000002

025·032672

025·042280

025·045053

025·042282

025·042283

025·042284

025..042285

025..042286

060..040192

060-040193

OJ3-034999

831-070314



GENERATOR & MOTOR ASSEMBLY

Generator & Motor Asscml>ly nov 6OH~

Generator & Motor As,;embly nov SOH~

Generator & Motor As,;embly 220V 60H~

Geller a tnr & M.)tor Assembly 220V 50Hz

GenerJ.lorAssembly 60Hz

Oeneraror Assenjbly 50Hl.

Synchronous Motor l20V 60Hz

SYllel>rnnnusMotor 120V 50Hz

SynchronolisMotor 60Hz

Synchronous Motor 220V 50H,.

MolorCupacit(l[' 120V 60Hz

Motor Capacitor 601'l1,or 120V 50Hz

Motor Capacitor 60H~ nr 220V 50Hz

Ccncrntcr Cover Aeembly

Tenninal I'Mnd Assembly (AC Panel with GY, RL. YEL.)

Motor Mountins Bracket

Capacitor Clamp

Motor ClampMotor Coupling Spring

Motor Coupler

Insulator Strip (AC Panel)

Post (For MOllnting Cover)

TcnnmalCover

Oval End Cap (Motor Capacitor)

PEDAL KEYBOARD & SWITCH ASSEMBLY 116·000010

PedalKeyboardf"ramcAsscmblyCover Assembly

Cable Assembly

(13Ured)

(13U_')

(13U"ed)

(16 Used)

Extension Spring

Stop Post

Up Stop Felt

Do,,"StnpFelt

Terminal L ug

p;,'otBnwket (8 Used)

Pivot Bracket (s ued)

Terminal Panel As.,embly(Long)

TerminalPullel

Stationary Contact Assembly (8 Used)

Contact Spring Asscmbly (8Used)

ActuatorSpring (8 Used)

Eyelet (24 Used)

Tenninal Panel Assembly (Short)

Term.in.1IPanel

For Other Component". Refer 10 Long Panel Assembly.Key Channel Asscmhly (Long)

Kcy ChannclIt.ong)

LOllgKey{Rrowll)

Cutdc Felt

Eyelet

Sem,. Bind Hend Machine Screw (Mounting Key)

Key Channel Asscmbly (Short)

Kc)'Channcl(Shurt)

Short Key (Black)

112-000021

112-000022

111-000023

112-000024

021-033802

021-033803

021-033804

499-033806

499-033807

499-033805

IIS-000031

006-024326

035-027354

013-024313

013-024427012-029132

017-024142

044-031434

041-022076

041-024838

060·024270046-025208

045-024198

012-020404

044-020398

042-020410

041-031898

007·015197

035·036094

035·036095

063-036553

045-024196

030-033305

012-033541

012-024199

999-026552

063-036542

006-024197

057-035978

041·020402

025-031666

042-021255

!)?9-017454

850-100514

057-035982

041-020403

025-031469



PREAMPLIFIER ASSEMBLY 117·000009 (AO-42)

ChassisJ>anAssembly

Chassis Hou~illg A_mbly

Matching Tramformer Assembly TIOI

Plug Assembly 3Pin

Plug Assembly 6 Pin (Power)

Plug Assembly 6Pin (Percussion Switch)

Tube 12AU7

Tube J2AX7

TubeShield

Set of Capacitors & Resistors (Cha!<Jis Mounted}

Resistor 270K R206

Resistor IMcg R214

Resistor 330K R217

Potentiometer 30K

Re.<istor & Capacitor Panel Assembly

TernunalBoard

Resistor 68K R212,R229

Resistor 390n nanResistor 20K R233

Resistor 2.7K

ResL~lur 3.9Meg R219

Resistor 82Q R209

Resistor loon R207

R(!lIisto, 220n R234

Resistor 1K R208

Resistor L2K R231

Resistor 3.3K

Resistor 4,7K R210, R215, R216

Resistor ISK R213

Resistor 47K R202,R221,R232

Resistor lOOK R220,R223

Rcsi~tor ISOK R224

Resistor 180K Selected for

Resistor 220K R226 PropcrGain

Resistor 270K atluspection

Resistor 270K R222

Resisto, 330K R218


Resistor 680K R227

Resistor IMcg R201

Resister 4.7Meg Rl03 Selected at

Resistor 5.6MegTlmeof

Re~istor 120K1I1spection

Capacitur .1 mfd 200V C215

Capacitor ,047mfd 4il0V C204

Capacitor .33mfd 100V C2IO

Cap.1cilor lOOmfd 001,C205,C207Capaci!ur 39pf 'OOV 003

Capacitor .0047mfd 100V C211

Cupacitor Olmfd IOOV C208, C209, C213, C214

Cav<1citor .02111fd 100V C212

Capacitnr I mId C206

Transistor Q201

VIBRATO AMPLIFIER ASSEMBLY 126-000023 (AO-47)

Cbassls Pan Assembly

009·024416

009-024417

003·024469

011-036632

011·024376

011-036637

002.012300

002-012301

010-041481

063-024412

600,021071

600-021211

600-0W)91

676-000144

063·024414

006-024407

600-040931

600·020391626-060861

600-030591

600-021351

60Q.020231

600-020251

600-020331

600-020491

600-020511

600-020611

600·010651

600-020711

600·020891

600·020971

600-021011

600-021031

600-021051

600-021071

600-021010

600-021011

600·021131

600-021171

600-021211

600·021371

600-021391

600-020991

401-020533

403,030452

406-010172

407·010029425·010151

413·010042

413·010072

425,010763

427·030025

001·021070

009-036649



Saturable Reactor A"emhly

Plug Assembly 3 Pin

Plug Assembly 6 Pin

Capacitor 30mfd!350V, 40mfd/450V, 40mfd!400V CI09,ClIO,Clll

Potentiometer SOOK Rl3I

Tube 7247

Tub~ Shield

Terminal Board AS!iembly (Resistor & Capacitor)

Terminal Board

Resistor 56K

Resistor 10K R103, RIO?, RIB, RI14,RI18, RI09

Re:;i,tor 470n RI06,RI12,RI17

560U Rl3J. .Use With Red Dot Reactors

1K IU32

R121

R122

15KRI04,Rll0,RI15

47K RlI"

IS0K Rl02

220K RIOI

J30K IUJ5

Resistor RI30,RI25,R126,RI27

Resistor lMeg R120, R139, RI05,RlILR116

Resistor 1.8Meg RI08

1.2K5% R129

150K5% RI28

12K

I5K One Re8i8tor

Resistor 1""

IR137 Sel~cled at Factory

Resistor 22K For Proper Phase

27K Shift

33K

1.2Mcg

1.5Meg ( On~ R~,istor

Selected at Factory

R138 rorProperVibr.1to2.7Meg \ Rate 6.6·7.0 Hz.

3.3Meg

Resistor 3.9Meg I

Re,istm 270n

)esistor 330!l One Resistor

390n

\R133 Selected at

470n Factory ForP"'per

Resi,tor 560n WidthCont,..,\

Capaciwr .047mfd C1l8

Capacitor .02mfd roov C114,C1l5

Capacitor 02mfd 400V CI13

Capacitor .047mfd 400V C108

Cnpacltor 10mfd 400Y C116

Capacitor A7mfd 400Y C102,CI04,CI06

Cap>tcitor 150pf 500V CI20,CI21,(122

Capacitor OOlmfd 500V Cl01

Capacitor .0018mfd C112

Capacitor 01mfd CI03,Cl05,(107,CI19

063-025246

011-036630

450-040200

676-000152

002-006307

002-012300

010-041481

063-027083

006-036647

603-0(;0761

600-030911

600-030732

600-020511

600·020711

600-020771600-020891

600-021031

600-021051

600-021091

600-021131

600.{)21271

600-020512

600-021012

600-020751

600-020771

600-020791

600-020811

600·020831

600-021231

600-021251

600-021291600-021311

600·021351

600-020351

{;oO-020371

600-020391

600·020431

406-010112

406-010182

422-032012

422-032022

422'{)32032

422-032092

425-010292

425-010502

425-010562

425-010752



POWER AMPLIFIER ASSEMBllES

Puwer Amplifier Assembly

Power Amplitier Assembly

Power Amplitier A,sdnhly

Chassis Pan Assembly

Power Tran,f()rmcr Assembly

Power Transfonner Assemhly

Power Transformer Assembly

Outp"tTrHn,furmerAssembJy

Filter Choke Assembly

AC Cord & Ping Assembly

ACStrainRe1ief

Plug Assembly

Plug Assembly

Plug Assembly

Tube 12llH7

Tube I2AX7

61:lQ5

5U4

Set of Capacitor, & Resistors (Chassis Mounted)

Resistor (>'In RJ38

V12

Resistor

Resistor

Resistor

Resistor

Capacitor

Capacitor

Capacitor

Capacitor

Capacitor

Capacitor 50mfd 450V C303

Capacitor 50 mfd/450V 50 mfd/450V C316, C317, C318, C319Capacitor 001 mfd SODV e320

Resistor & C,'pacitor I>.me1 Assembly

Resistor 150n R321

R333.R334

R302,R327

R322

R305,R306

R308

R325

Resistor

Resistor

Resistor

Resistor

Resistor

120V (11.0-43-1)

120V 50Hz (A0-43,2)

234V 50-60Hz (AO-43-3)

120V T-302

120V 50Hz

234V 50-60Hz T-302

T,301

14 Henery

126-000017

126-000018

126-000019

009-024410

003-036549

003-024159

011-033233

013-034991l

3 Pill Fcmak(Output)

9 Pin 011-024379

011-036633

002-012302

002-012301

002-006700

002-005201

0(;3-024401

604-070071

600-030651

600-030711

600-020391

600-020491

600-020631

600-0201l91

3 Pin Female (Reverb)

V6,V8

V9,VI0

4.7K R335

8_2K R341

3900 R31O,R314

R311,R312

3.9K R337

R31J,R323

R3014.7Meg R318

220K R344

R339

75011 R340

R343

R332

33K '.

39K I Factory Selected

56K R309

82K I20K

270K

100pf 500V C307

.0022mfd 500V C315

0012mfd 500V C304

.02mfd 500V C305

.001 mfd 2000\' C314

600·021051

602·050081

602-050121

602-050141

606-050022

600·020851

600-020871

600·020911

600-020991

600-021071

425-010252

425"010583

425·010522

425-010763

425-030503

450-010070

450-040401425-010502

063-024411

600-020291

600-0204')]

600-020591

600-0206')1

600-020731

(;00-020871

MlO-020891



Resistor ISOK R320

Resistor illOK R304


3J<)K R307,R330,R331

Resistor 470K R324

Resi,to. IMeg R326

Capacitor 047mfd 400V C311,C312

Capacitor 100mfd 3V C301,C308

Cap3citor 220pf C310

Cauactror .D2mfd 500Y C302,009

Capacitor 5mfd C306

Capacitor 100mfd 25V C313

Potentiometer 10K

600-021011

600-021031

600-021051

600-021091

600-021131

6OO-O21211

403-030452

407-010029

425·010332

425-010763

676·000143

PERCUSSION PRESET ASSEMBL Y (L·l0QA) 121·000105

Printed Circuit Bmnd Chw"is

PowerSupplyCha~is

Speakerassembly

MarkcdEndhlo .. kKnob Large (PercussieuEndblock]

KnobSmall (Percussion Endblock}

121·000104

025·031201031·033591

RHYTHM PRINTED WIRING BOARD ASSEMBL Y 124-000114

Used With 6-Uult<.>n Rhythm Endhlock

Priuted wtrtng uoard

Resistor 47011

82011 RI03, RI03A, RI03U, H 10lC

Resistor 1200n R141,R16O

Resistor 5600n

10K RIOS,RIOSA, JU08B, R125, RI3LRI57,RI61,RI64

12K K148

15K R106A

Resistor 15K RI19,RI22

IIlK R107B

22K RI06, RI06S, R106C, RI07C

023-041242

600-020411

600-020471

600-020571

600-020671

600-02073!

Resistor

Resi,to.

39K

600-020771

600-020791

600-020812

600-020811

600-020831

600-020851

600-020872

600-020891

600-02(1')32

Resistor RI40,R128,RI50,R1SI, IU54, RI59

27K RI14,RI27,RI42

Resistor 13K RI18,R145

Resistor

47K RIOO, RlOOA, RIOOB, I~ IOOC, R137, R136, R139

68K RI02, RI02A, RI02H, RI02C, RI6S

lOOK RIOI, Rl0IA, R1018, RIOIC, RI 10, K117, R152, H153,

ISOK

120K

ISOH

470K

6S0K

IMcg

2.2Meg

2.7Mcg

6,8Meg

101lieg

1.5:'<fcg

Resistor 27K

PotcntiomctcrTrimrner

RISS.R1S6

R12I,RI63

R123, R147, R149, RI5S, RJ60

RI67

RI05, R105A, IHOSo, IUOSC,RII!, RI15,RI20,RI62

RI24

RIl2

RI04,RI04A, IH09. 1t109A, RI09B, RI09C

RI29

600·020971

600·021011

600-021051

600·021131

600-021171

600-021211

600-021291

600-021311

600-021411

600-021451

600-021251

600-020832

676-000011

RI04B,lU68

RI04C

RJI6

RI07

5K



Capacitor .OOlmfd

Capacitor .OOISmfd

Capacitor .0022mfd

Capacitor .0039mfd

Capacitor .0047mfd

Capacitor .0082mfd

Capacitor .01 mfd

Capacitor .015mfd

Capacitor 022mfd

Capacitor .eo o raCapacitor .1 mfd

ClI0,C117,CI18,C1I9

CI02C, Cl03C; CI04C

C121,CI25

CIl5

CI02ll,C1038, CI048, CI28

C109

CI08,CII1, CI12, C116, CI30

ClO2A, CI03A, CI04A

CIOIll,CI02,CI03,C104

CIOI,C101A,CI27

ClOO, Cl00A, CI008, CIOOe, C108, CI07, C114, C123,

C124,C126

Capacitor ,22mfd

Capacitor ,OS6mfd

Capacitor 471'1' CI05B

Capacitor 6Rpf

Capacitor 220pf Cl05,CI05A

CapacitorTaJltalum lmfd Cll0

CapacitorTantalum 10mfd CI12Capacitor Electrolytic lOOOmfd C129

Transistor QI06,QI07,QIOS

Tran,islor QlOO, Q100A, croeu, QIOOC, Q103, QI04, QI12, Q114, Q115, QI 16

Tmnsistor Ql02, Ql05, QI09, Qt10

Transistor QlIJ,QlJ3

Transistor (Noise) Q101

Diode 0100, DIOOA, DlOOB, DlOOC, 0101, 1)102, 0103, 1>l04

Choke L100,LlOI

LOWER RlGHT HAND ENDBLOCK ASSEMBLY 125-000043(Rhythm Six-BuUon T-2oo-1-2, T-400)

EndbJock Lower Right Hand

Cushion

Push Burton

Compression Spring

Knob

CableAssembly

CabJcC!ip

Potclltiometer(OueICon,truction)Resistor 22001)

Resistor 10K

Resistor 56K

Diode

Switch Panei Assembly

SwitchP:lnel

Contact Spring Asscmbly

Stationary Contact As...embly

RivetingPlute

ConlaclSpring

Pivot Bracket

Felt Stop

Stop Post

Spring:

Shaft

Spring Bridge

Support (Shaf1)

RockerTah Block Pedal

405-340012

405-340022

405-340032

405-340052

405-340062

405·340072

405-340082

405-340092

405-340142

405-340182

405-340212

405-340162

426-010172

426·010212

414-U40092

414-040152407..060149

001-021070

001-021134

001-021135

001-021172

001"021211

00J-026010

003-030753

025-041129

043-041131

025-U33453

012..033464

031-031755

011-041161

013-025297

676-000269

600-010571

600-010731

600.020911

001.026010

008-041158

006-041135

008..Q2J944

030-021927

041-020664

030-041132

041-041133

042-041130

030-033690

012"032408

020-037239

041-041134

041-041157

031-041143



Bongowwer

Rocker Tab Tom Tom Lower

Rocker Tab Cleves Lower

Felt Washer

Rctalnlng Ring (for Shaft)

TerminalLug

031-041146

031-041147

031-04114R

POWERSUPPLYASSEMBLY 120V 60Hz 127-000007

POWERSUPPLY ASSEMBLY 120V 50Hz 127·000008

POWERSUPPLYASSEMBLY 220V 50-60Hz 127·00009

Power Supply Chassis

TcrmlnalStrlpAsscrnbly

Transformer nov 60Hz

Transformer 120-220V 50-60Hz

GtpacitorEl~drolytic

Capacitor Electrolytic

Printed WiringlloardA>scmbly

Printed Wiring Iloard & Pin Assembly

Diode DlOO,D101,DI02,D103

041-033661

006-028913

CIOO

407·090329

450·070050

124-000022

Transistor QIOO.QIOI

001·024051

001-021133

Transistor QI02

30V \))04 001-023040

600·020291

600-020331

600-020371

600-020571

;;00-020692

600-0208H

600-020852

426-010763

044-033662

011-0400:n

150n

220n

Resistor

2.2K

6)~K

Resistor 33K

CapllcitorCcrllmic .02mfd <:102

PEDAL CONTROL BOARD ASSEMBLY {ENDBLOCK RHYTHM)

Pedal Control Board Assembly

T~rminal Board A,,<;embly

Capacitor 1mfd

Capacitor .1 mfd C2, C3, C4

CapacitOl 390pf C5

Capacitor 82"f C6

Capacitor 470pf C7

Resistor r o o o n RI

2200n

LOK RS,Rl0

R12,R15

R11

R3,R4,R7

0(;3-042051

006~41578

414·040092

414-040012

425-010392

Resistor

Resistor

Resistor

Resistor

Resistor

150K

470K

IMcg

2.2Meg

3.9Mcg

Q2,Q4

R7

R13,R14

K8

425-010412

600-020491

600-020571

600·020731

600-020771

600-020811

600-020971

600-021011

600·021131

600-021211

600-0212<Jl

600-021351

001-021133



AUTOMATIC RHYTHM ASSEMBLY (RHYTHM II DRAWER)

Automatic Rhythm Assembly 120V 60Hz

Power Supply Assembly

Automatic Rhythm Assembly l20V

P(>wer Supply A''iemhly

Aut"matic Rhythm A",emhly

Power Supply Assembly

Automatic Rhythm Assembly 220V 50Hz

P"werSupply A''iemhly

Shield (Power Supply)

Control Assembly

Voice Generator Assembly

Shield (V"ice Generator A",emhly)

Wire&P1ugA",embly

Screw #6 (4 Power Supply·4 Voice Generator)

Screw (Mounting Rail}

Adhes ive Bad.ed FeH

washer

Clip (Adhes ive Backed)

127·000028

110-000049

127·000029

110·000050

127·000030

110·000051

127·000030

010·042054

125-000045

063-042080

010·042082

011·042083

884·050734

884-050933

042·035141

999-000065

WOODWORK

Cahine!A"emhly

Ca.,eAssembly

TopI'anel

MU!iicPanei

Baffe1&GrilleCloth

Rear Cover

Bench A,,~emblyCabinet Assembly LIl2·1

Case Assembly

Top Panel

M usic Panel

Baffe1&GrilleCloth

Rear Cover

Bench Assembly

111·000024

050-036894

050-036890

050-038294

052-036886

056·040229

152-000023111·000025

050·036895

050-036891

050·038295

Ll22·1

152·000024

111·000026

L133·j

050·036891

050·025427

052·036887

056·040228

152·000027

Ill·000027

050·025500

050·036893

050·025428

052·036888056·040228

152·000025

lll-DOO02R

050·025530

050·036892

050·036905

052·036889

056·040230

lS2-000026

Top Panel

M usic Panel

Baffe1&GrillcCloth

Bench Assembly

Top Panel

M usic Panel

Baffcl & Crillc ClothRear Covcr

Bench A ssem bly

L143-1

Top Panel

Music Panel

Baffcl & CriHc Cloth

RearCo\'cr

Rench Assembly



Ca",Assembly

Top Panel

Music Panel

Baffel&GrillcClotl1

Rear Cover

RenchAS-'iembly

CabilletA!O<ernhly L222·'

Case Assembly

Top PanelM nslc P aucl

Baffd&GrilleC10lh

050·0368')5

050·000840

050-038295

052·036887

056-040228

152-000024

050-025470

050-000840050-025427

052-036887

056-040228

Rench Asstlllhly

MISCELLANEOUS

Pedal FiHtr Choke Assembly

Cable Assembly (Gcncmtor To Manuals)

Re,-erhermion Unit As.'iemhly

Trim Slrip (GriUe Cloth)

Speed Nur

CoverKontrolSwitch}

Felt [Adhesive Backed)

Endblock U I 'I I C T Right Hand , Textured

Endblock U I 'I I C T Right Hand . Smooth

Endblock Lower Left Haud c Texrurcd

Endhlnck Lower left ..and- Smooth

Endhlock Lower Ri~ht Hand . Textured

Endblock Lower Rl~ht Haud . Smooth

011·024352

121-000002061-031029

999-024841

041-014211

042-033312

025-035707

025-024307

025-028406

025-024848

025·028407

025·024847

SPEAKERS

Ll00,L1()()·1 ..2 (Barty Production)

(EmlyPfoduction)

014-024346

014~7293

014-024346

014-024347

014-030812

014-027293

014·030812

014·024347

LlOO,LlOO·I,.2



L-200 PARTS LIST

6-16

6-](;

6-16

(;-16

6-16

6-17

6-17

LOWER MANUAL ASSEMBLY 6-18

6-18

GENERATOR AND MOTOR ASSEM8L Y

6-19

6-19

6-19

PREAMPLIF IER ASSEM8L Y 11 7 -000009 6-20

V I8RATO AMPLIF IER 126 -000023 6-20

POWER AMPLIF IER ASSEMBLIE S

Power Transformer 120 V

Power Transformer 120V

Power Ttansfonner

6-22

6-22

SWELL PEDAL ASSEMBl Y 1 23 .1 1 00021

RHYTHM II AND EXTRUS ION ASSEMBLY 125 -00005 0

POWER SUPPLY ASSEMBLY 126 -000041

Transformer 6-236-23

MISCELLANEOUS

6_24

6-24

6-24

6-24

6-24

6_24

6-24

6-24

6-25

6-25



CONTRO L PANEL ASSEMBLY 120·01 }1 }O ll

061·027350

041·025778

823·04J7J4

013·024298

008·03479J

OJ 6·034440

01(;·031454

013·031468

039·031450

033·043006

999·000061

063-025776

012-027488

028-032049

025·027S29

025-040198

901-030514

031·034337

031·034338

031·0:~433')

O:~1·034340

031·034343

012·027613

007·022320

011·036624

#1·56 Tap Tite Screw

PRESET SWITCH ASSEMBL Y (LOWER MANUAL) 008·034391

Switch Panel & Bracket Assembly

Cancel Lever Assembly 060·0371S7

035-024205

035-024335

ml·0_~6481

031-036482

013-031744

013.028002

Plastic Tic

TlIhubrClip

Shaft

SprillgWashcr

Sems. Rounu Head Machille Screw

Flat Il~ad Machine Snew

999·000151

821-040:~ 14

PRESET SWITCH ASSEMBL Y (UPPER MANUAL) 008·024392

Cance1LillhgeAsscmbly

008-024613

008·024626

060-0371')0



035-024205

035-024335

031-036484

031-036485

TllblilarClip

Shaft

999·000151

007·035151

821-040314

PERCUSS IO N SW ITCH ASSEMBl Y 008·024393

SW ITCH PANEL & BRACKET ASSEMBl Y

(S ECO ND HARMON IC , TH IRD HARMON IC ) 008-0246 1 5

SW ITCH PANEL & BRACKET ASSEMBLY

(FAST DECAY , PERCUSS ION SO FT ) 008-0246 1 7

035·024335

031·036486

031-036487

031-036488

ShaftTemlinullug

FlatHead Machine Screw

Sems_ Round Head Machine Screw

Resistor 2.2 Meg R409

Resistor 4.7!1 R410,R411

013·028002

020-037238007-024137

839-040214

V IBRATO SW ITCH ASSEMBl Y 008-024394

SW ITCH PANEL & BRACKET ASSEMBL Y (V IBRATO SMALL) 008·0246 1 6

SW ITCH PANE l & BRACKET ASSEMBl Y

(V IBRATO NORMAL, V IBRATO CHORUS ) 008·0246 17

035-024335

031·036490

031-036491

Terminal Lug

Shaft

TllblilarClip

Spring Washer


Resistor 2.2:\-leg

Resistor R404

013·KH744

007·024137

999·000151

839-040214

600-021291

600-021351

600-021411



Swikh Panel & Bracket Assembly (Reverb IJ

Swikh Panel & Bracket Assembly (Brilliance)

Mountingllracket

Lever Mounting Brdcket

Control Tab_ (REVERB I)

Control T,]-,_ (REVERB II)

Control T~]-,.(VOlma: SOFT)

COiltrul Tab. (BRILLIANCE)

Pla<ticTj"

Shaft

Spring Washer

TublllarClip

TieStrap

FlatHead Machine Screw

Sems. Round Head Mal"hiue Screw

Resist", R407

Re,i.tor 270K R406

Resi,tor S20K R40S

Resistor 4_711Ieg R40S

CapacitO)rCemmic 0 0 1 5 j J _ f C402

Capacil"r 022,",! (;401

Shielded Lead Assembly (Vibr~tu Chorus Cabll'· J.llue Plug)

Shielded Lead Assembly (Percussiun Volume Cable - Red Plug)

Shielded Cable & Cap esscmhty (Vibrnto Switch Cable)

Shielded (able & Cap Assembly (Reverb Switch Cahle)

008·024604

008·024610

035·024351

035·024335

031-03649_1

031·036494

031·0%495

031·03M96

013·031744

020-037239

999·000151

013·02S002

041·027176

8:{9·040314

821·040314

600-020971

600-021071

600-021191

600·02l37142S·010542

401·020342

011·0347S2

001·034753

011·036621

011·036622

PERCUSS IO N CABLE ASSEMBLY (PERCUSS ION CABLE ) 01 1 ·036 6 40

CABLE ASSEMBLY (LOWER MANUAL PLUG ) 011 ·036 71 19

CABLE ASSEMBL Y (UPPER MANUAL PLUG ) 01 1 ·036 7 5 0

LOWER MANUAL ASSEMBL Y 119·000045

UPPER MANUAL ASSEMBL Y 119·000009

Switch Cover Assembly 06()'033397

{)(i()'033405

057·045053057·045051

06().02428(;

057·042770

06().033392

850·000002

025·032672

025·042279

025-042280

025-042281

025·042282

025·042283

025·042284

025·042285

025·042286

060·040192

060·040193

01.1-034999

831-070314

925·050314

Top Cuver Assembly

Key Comb Assembly (12 Keys)Key Comb Assemhly (8 Keys)

Key & Ch~llIlei A"embly (Sharp Key)

Key & Channel Assembly (One Sd of SfVCIl Iv"t)')

Bracket & Channel A~mb()'

Sems. Billd Head Machine Screw

Sh~rp Key - Black

NlItur:dKey-lvory"("'

Natur~1 Key-Ivory "D··

NaluraIKey-lvory·'E·'

NMturaIKey·h·ory ··F"

Natural Kcy-IVllry·'G"

Natural Key-Ivnry "A··

NaturnlKey -Iv",y "I}"

Natuml Key -Ivory "ex" (L1St Key Oil Manllal)

Mounting Brac'ket Left H~lld

Mounung BrackerRlght Hand

Strain Relief

S.crcw(Kcy Comb)

Scrcw(T"pCover)



(;"neralOr & Motor Assembly

Generator & Motor Asscmbly

Generator & Motor Asscmbly

Generator & Motor A~embly

GeneratorAs<>embly

GeneralOrAs.'<embly

Synchronou;Motor

SynchronollsMotor

SynchronousMotor

SynchronousMotor

Mo!OrCapacitor 60Hz

Motor Capacitor 60Hz or 120Y SOHl

Moror Capnclror 60llzor220Y SOHl

Generator Cover Assembly

Terminal Panel Assembly (A( P~nel with GY. BL YEL.)

Motor Mounting Bracket

Capacitor Clamp

MotnrClamp

MotnrCouplillgSprin!l

MotorCoul'lcr

InsuiatorStrip(ACrandj

rost(ForMOllJltinj;Coverj

TerminalCover

Oval End Cal' (M"«)I' (~p~citorj

GENERATOR & MOTOR ASSEMBLY

60Hz

SOHz

60Hz

SOHz

60H1.

SOH].

120V 601b.

120V SOliz

nov 60Hz

nov

112.0000021

112.0000022

HZ-000023

112.0000024

113.000011

499·033807

499-033805

115-000003

035·027354

013·024313

017-024242

036-024328

044·03J4]4

PedalKeyhoardFrwlIeAssemblyCo\'er.th\embly

Cable Assembly

PEDAL KEYBOARD & SW ITCH ASSEMBL Y 1 16 ·00 001 0

060-024270046-025208

ExtcnsionSpring

SI"pPo,,!

Up Stop ren

DownStopFel!

TerminalLug

Pivot nrnckct

(13 Used.)

(13 U.ed.)

(13 Used)

(26 Used)

045·024198

012-020404

044-0203'018

042-020410

042-031898

007-015197

035·036095

Stati"nary C"nta~t Aiisemhly (8 Used)

Contact 8pring Assemhly (8 Used)

ACflIatorSpring (8 Used)

Eydct (24 Used)

Tenninal Pand Assembly (Sherr)

T~rrninal P~nd

For Other (ompon~nt". Refer to Long Panel AssemblyKey Cb~nnel Assembly (Long)

Key Channel (Long)

Long Key (Urown)

Guide Fel l

045-024196

030-033305

012-033541

012-024199

999-026552

063-036554

006-024197

Eyelet

057-035978

041-020402

025-031(;66

042-021255

999-017454

850-100514ems_ Dind Head Machine Screw (Mounting Key)

Key Channel AsscUlbly(Shortj

Key Channel (Short)

Shorl K~y(Black)

041-020403

025·03J469



PREAMPLIFIER ASSEMBL Y 117-000009 (AO-42)

Chassts PauAssembly

Chassis Housing Assembly

Matching Transformer Assembly T201

f'lugAsscmbly 3Pin

Plug As~cll1hly

PlugAssembly

Tuhe12AU7

Tubcl2i\X7

TubtoShield

Set ofCnp..citors & Re,istor,,(Chassis Monutcd)

Resistor 270K R206

Re,istor lMeg R214

Re,istor 330K R217

Potentiometer 30K R225

Resistor & Call"cilOr Pand Assembly

Tctlniuailloaru

Resistor s s s ; R212,R229

Res;s([)f 390;1Resis(or 20K

R<:.,is(or

R~sis!()r 3.9Meg

Resistor R 2U R209

Resistor l o o n R!07

Resistor 220!! R234

R~sistor IK R208

Resistor 1.2K lUJl

l~esist "r 3_3K R205

Resistor 4_7K R210,R21S,R2I6

Resistor 15K R213

Resistor 47 K R202,R221.R232

Resistor lOOK R220,R223

Resistor ISOK R224

Resistor 180K Selected for

R<:.<is;tor 220K R226 PropcrGain

Resistor 270K atinspectioll

Resistor 270K

Resistor330K R218

Rcsistur 470K R228,R230

Resistor 680K R227

Resistor IM eg R201Sclcdedat

Resistor 4.7MegTillie of

Resistor S.6MegInspection

Resistor .20K R236

Cap~citor .1 mfd 200Y e21S

Capacitor 047mfd 4QOV C204

Cap~dtor ..Bmfd lOOY C210

Capacitor 100mfd JV C201.Clos.n07Capacitor 39pf 500V (203

Capncitor .0047mfd 100V C211

Capacitor .Olmfd C208,C209,C213.C214

CapacitOl 02mfd C212

CapHcitor C206

Q201

VIBRATO AMPLIFIER ASSEMBl Y 126·000023 (A047)

009..{124416

009·024417

003·024469

O{l·036632

011·024376

011-036637

002-012300

002·012301

010·0414HI

063·024412

600·021071

600·021211

600..{l210'l1

676·000144

063·024414

006·024407

600·040')31

600-020391626..{160861

600-030591

600·021351

600·020231

fiOO·020251

fiOO·020331

600·020491

600·020511

600·020611

600·020651

600-J)20i71

600·020891

600·020971

600·021011

600·021031

600·021051

600·021071

600·021070

600-021091600·021131

600·021171

600·021211

600·021_171

600·021391

600·020991

401·0205B

403·030452

406·0)0172

407-J)10029425_010151

413·010042

413·0J0072

425·010763

427·030025

001-J)21070



Saturable Reacror Assembly

PlugAsseulbly jPtn

PlugAssembly 6Pin

Capacitor 30 mfd!350V, 40 mfd{4S0V, 40 lllfdj400V CI09, C110,CI]]

Potentiometer SOOK RI3I

Tube 7247

TIl!>e l'.!AU7

TllbeShieid

Terminal Uonrd A~scmbly (Re,i,tol' & Capacitor)

FenutnalBoard

Resistor RI23

Re~i~lor 56K RI36

Resistor 10K R103, R107, Rll.l, R114. R118. RI09

Resi,t(}r 470n R106.RI12.R117

ResiSlor 560n R13l. .Use With Red 11M Reactors

Rcsistur 1K RI32Resi,tOl" UK R121

Ressror tUK RI22

Resistor 15K RI04.RlI0.RI15

Resistor RI19

Resistnr RI02

Resi,wr 220K RIOI

Re,i,tor J30K RI3S

Re,i'hlr 470K RI30,RI'.!5,RI26, 1~127

lMeg Rt20,RI39,RI05,R]II.IUI6

Resistur 1.8Meg RIOIl

Resistor J.2K 5% RI29

Resistor i50K5% R128

Resistor 12K

tesistor 15K One Resistor

Resistor 18K R137 ScleetedatFactury

Resistor 12K

Ifor Proper Phase:

Resistor 27K Shift

Resistor 33K

Resistor

: ; : : : : }eslstor One Resistor

Resistor 1.8Mcg Selected at Factury

Resistor 2.2Meg RI38 For Pr0l'er Vibrato

Resistor 2.7Meg Rale6.6·7.0Hz

Resistor 3.3\fcg

Re,istor

2;~~;etesistor

330n One Resistor

Re'i,to~ !~~~R133Sclcctedat

Resistor Factory for PropN

Resistor 560n i width Control

Capacitor .047mfd IOOV Cl18

Capacitor 02mfd r o o v C114,C1l5Capacitor .02mfd Cll3

Capacitor 047mfd 400V

CapacitOl 10mId 400V

Capacitor .4imfd 400V CI02,CI04,CI06

Capacitor 150pf 500V eI20,CI21,Clll

Capacitor .001 mfd SOOV CIOI


Capncuer 01 mfd 500V C103,C105,CI07,CI19

063·025246

011-036630

011-024376

45(}"040200

676.000152

002·006307

002·012300

010-041481

063.027083

603-060761

600_030911

600·020411

600·020431

600·020491

600·020511

600-020771

600-020891

600-021031

600·021051

600.0~1091

600.02113]

600·021211

600.021271

600-020791

600-020811

600_020S31

600_020851

600-021231

60(}"021291

600-021331

600-021351

600-020371

600·020.m

600·020431

406·0101]2

422-032022

422.032032

422·032092

425-010562

42.5·010752



PO WE R AMPLIFIE R ASSEMBLIES

Power Amplifier Assembly

Power Amplifier Assembly

PowerAmplifier,<\s.scmbly

Cilas,i,PanAssembly




Output TransforlllcrAssemblyFilterChokeA,scmbly

AC Cord & Plug ASlScmbly

,<\CStrainRclicf

Plug As,;embly 3 Pin Female (Output)

Plug Assembly 9 Pill

Plug Assembly 3 Pin Female (Reverb)

Tube 12BH7

Tube 12AX7

6BQ5

5U4

Set of Capacitors & Resistors (Chassis Mounted)

Resistor 64[\ R338

Resistor

Resistor 8.2K 1041

063-024401

604·070071

600·030651

600-030711

600·020391

600·02049J

600·020631

600.020891

600-021131

Re,istor 390n R310.R314

R311.R312

3,9K

R313,R323

Resistor 4.7Meg R318

Resistor 220K R344

300n R339

750n R340

Resistor IK R343

Resistor 130n R332

Re,i,tor ;:~ Fact()rySelecied

S(iK For Nominal Gain

82K \120K

270K

Capacitor 100pf 500V C307

Capacitor .0022mfd 500V 015

Capacitor

Capacitor .02mfd

Capacitor .00lmfd 2000V C314

Capacitor 450V

Capacitor C316,C317.C318,C319

R333,R334

R302,R327

Resistor 6.8K IU22

Re,i,tor R305,R306

Re,i,tor

120V .oR,nov 50Hz

234V 50·60Hz

60Hz T.302

120V 50Hz T·302

234V 50-60·Hz T-302

T·30114 Henel)' eH·301

126-000018

126-000019

009·024410

003·024157

003·036548

003-036549

003·036550003·024159

011·033233

013·034998

OJ 1·036628

011·024379

011-036633

002-012302

002-012301

002·006700

V6,V8

V9,V10

602-050141

606-050022

600-020851

600·020871

600·020911

600·020951

600·020991

600-021071

425-010252

425-010583

425-010522

425·010763

425-030503

450-010070

425-010502

063·024411

600·020291

600-020591

600-020691

600·020731

600.020871



Resi~tor 150K 1020

180K R304

220K R303,319

Resistor 330K R307, 330,331

Resistor 470K R324

IMeg R326


Capacitor 100mfU 3V

Capacitor 2201'1" 'DOV

Capacitor .02mfd S O O V

Capacitor 5mfd 150V

Capacitor lOOmfd 2SV

Potentiometer 10K R336

C311,312

C301,30S

C302,309

C306

SWELL PEDAL. ASSEMBLY 123·000021

Ba..e Br&cket Asscmbly

Shutter Assemhly

Bearing Bracket

Bearing Bracket with Dowel

Pedal Bearing (slolted)

Pedal Shaft

Machine Screw

Lock Washer

Square Nut

Cell & Housing Wiring As:;cmbly

Diffuser

Photo CeU Housing Cover

Light Bulb Socket Assy.Spring

Light Bulb

Pedal Assembly (with mat)

RHYTHM II & EXTRUSION ASSEMBl Y 125-000050

Rhythm IIUnit (in built Automatic)

Screened Panel (painted Part)

R.H.EndCap

L.H.Eudeal'

rOWE R SUPPl Y ASSEM8l Y 120V

POWER SUPPLY ASSEM8LY 120V SO/60Hz

POWER SUPPL Y ASSEM8l Y 220V SO/60Hz

PowerSupplyChas~is

Tennlnal Strip Asscmb]y

Transformer

novTmmformer l20/nOV SO/60Hz.

Capacttor.Electrolytlc 5OOmfd/40V

Diode a u s e d

3W

68 Ohms 3W

600_021011

600·021031

600-011051

600-021091

600-02113]

403·030452

407·010029

425-010332

425·010763

450·040083

450·040084

676·000143

060-030207

060·033749

035·031429

035·031428

017·031431

020·021725

843·081113

999·000729

999.001343

040·030216

016·030153

025·032880

034·033419012·030154

016.031748

060.033289

125-O0004!)

061-042579

045.042507

045_042508

127.000041

127-000043

041-033662

006·028913

003.033473

003·033474

407·090329

001·024051

602·050141

602·050021



MISCELLANEOUS

Ceucratcr Pad

Speed Clip

ReverherationUnitAssemblv

PowerSullplyCable .

Terminal Panel A~sy. (!>etween Reverb & Amp)

Cable & Cup Ass}". (Sp~aker to Amp)

Cable & Contact Assy. (between Spcnkcrs)

Shielded Lead & Plug Assy. (between Pr~amp & Vi!>. Amp)

Shielded Leild & Plug A,;sy. (betw~el) Premnp & vn.. Amp)

Shielded Lead & Plug Assy. (Red Reverb Cable)

Shielded lead & Plug Assy. (gear Reverb Cable)

Shield (Rhythm IIPower Supply)

Speaker 12"' (It.H. Viewed from Rear]

Speaker 12·'(l.H. ViewedfrumR~ar)

Cahle & Plug As.,y. (BLK plug cahle ut Amp)

Terminal Cover (lower manual)

Grommet (lower manual)

Swell PedalHousing AssemblyAmplifier8ase

End Block _ Lower L.H.

EndBlockDmcket

End Block-lowcrR.H.

TerminaIStripAsscmbly(Shclf)

Ccncratcr Tcc-Nut

Generator Gmmmct

Ccncrator wusher

Gellerator] ....lIuntingScrew

Plastic nesOil Tube Assembly

TrimSttip(SwcUPcdal)

FrontStrip(omnual)

Cable Clip

Pedal Filter Choke Assembly

0]6-{)24354

013-024843

121.000002

011-024357

006-034306

011·036623

200-010327

200·010328

011·036643

010-042054

014·030812

Ol4·027293

011.036388

041·024164

043-039553

0%-025206

035-031459

025-028401

006·043833

999·032998

043·024246

999·000104

824·121114

055-025648

061-031029

013.024296

003-025333

WOOOWORK

Cabinet Assembly

Case Asscmbl)'

R:earCm·er

Fastener

Brml

Fastener "Clip'· (Rear-Cover]

a a r n e & Grille Cloth

lodc. Nur (Speuker& Baffle Mounting)

Baftle(Ollly)

GrilJeCloth

StandatdMountingScrew

PlasticUumpcr

Top&MusicPaneIA"ernbly

Top Puncl

M,,,icPand

Hinge

Screw

Top Rail S",ew

Siud (TO[I Pallcl)

Bench,\SSClllbly

111-000115

050-036895

056·040228

013.040269

052-036881

053-038428

999-006116

025·023329

050·002118

050.000S40

050-038295

032-033414

880·030537

832·081814

152-000024



Cabinet Ass~mblr L-222

Case Assembly

R~arCover

Fastener (Rear Cover)

s r e o

Fastener "Clip" (Rear Cm·cr)

B~ffle&GriHeCloth

Lock NlIt (Speaker & Baffle MUlltlting)

llafflc(only)cuue crcu,

Stand~rdMountingScrew

Pla",licBulIll'er

Top & M"sic Panel Assembly

TopP:lI1cl

MII,icPund

Hillg~

Screw

Top Rail Screw

Stud (Tul' Panel)

Bench Assemblr

111-000116

050-025470

056·040228

013.040269

999-040271

013-036811

052-0J!i887

999·001437

054-025432053.038428

999-006116

025-013329

050.002807

050-000840

050-025427

032-033414

880-030537

832.081814

CahinetAs:;embly

Ca.eA"",mbly

RearCo\·er

F",teMr(RearCover)

Brad

fasteMr"Clip"(RcarCovcr)

Baffle & Grille ClothLockNut

Bafflc(unly)

GrillcCI"th

St~nd~r<.lMollntingScrew

PlasticBllmper

111-000125

050-002100

056-044430

0f3.040269

999·040271

013_036.'111

052.03(;890999·001437

053-032909

999-006116

025·023329

Top Panel

~lLl,ic P"Il~1

BcnchAssclllbly

050·002130



HO-735 IM_5/75 DIV.

NOTES

Hammond l 100 Series Service Manual

Documents

Transcript of Hammond l 100 Series Service Manual