TECITNICAL
MANUAL
MODEL
124 SERIES
ORGAN
INDEX
NOTE:
Manual Reprinted wj.th reduced
atdfor
updated
material causing
elimination
of soroe
page
numbers.
Pages
bear
original
page
numbers for future reference.
A11 original
Eaterial
and/or Lmproved
additions and
revisions are included.
PAGE
MODEL 124 SERIES
(INCLUDES
SPECIFICATION)
FIGURE
4........,
.Organ Back
View
-
Photo &
Description
5. ...... ...Tone
Color Raj.sed
-
Photo & Descrlption
6..........Stop
Tab Switches Disassembly
-
Photo
& Descrlption
7. ....Disassemb1y Procedure
9.....,,...E1ectronic
Shelf Assembly
-
Pictorial
9A...
..... .Electronlc Shelf
Assembly
(Revised)
-
Pictorial
10..........Mode1
124 Keyboards
-
Pictorial
11.
.....
.. ,.Model 124 Series Block Diagran
12.....Tone
Generation
and Accessory
Board
Theory
13...,......Generator
Shelf
Assembly
-
Photo
& Description
.
. .
L4......
..
..2 Note
Generator
Board Schenatic
15,.........2
Note Generator
Board Assenbly
-
Pictorial
7
I
16..........Accessory
Board Asseurbly
-
Ptctorial
L7
........
..Aecessory Board Schematic
18.....Keyswitching
Circuit Theory
19..........Keyswlteh
Boards
-
Pictorial
9
2O.......
. . .Key Assenblies
-
Pictorial
10
2L..........So1oManual-Raised-Photo&Descriptlon...
11
22..........Keyswitch
Wiring Dlagram
23.....Tone
Color Theory
24.....So1o
Filter
Board Assembly
-
Pictorial
25..........So1o
Filter
Schematic
26.
. . . .Preamplifier and Expressi.on
Control Theory
27
... .. . .. . .Preamplifier
and Reverb Anplifier Board
Assembly
-
Plctorlal
28.....
. ..
..Preampllfier
and Reverb Amplifier SchemaElc
29..........Preamplifier
and
Reverb 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..........Rhythn
PercussLon Theory
38,.,.......Rhythn
Voice Board
Assenbly
(Modlfled)
-
plctorlal
39..........Rhythn
Voice Board
Schematlc
(Modified)
40....,Power Supply Theory
41.
. ...... ..Power Supply Board
Asseubly
-
Plctorlal
42..........Power
Supply
Schematlc
4fA.........Power
Supply Board
Assembly
(Revised)
-
42A,.......,.Power
Supply
Schenatic
(Revlsed)
43..,..Power
Ampllfier
Theory
44.....
. ,...Power
Amplifler Board Assenbly
-
Pictorlal
45.....
.... .Power Amplifier
Schematic
44A,.........Power
Anplifler Board
Assem6ly
(Rev1sed)
-
plctorlal
45A.........Power
Anpllfler Schematlc
(Revised)
46....,Electronlc
Shelf Power
Clrcuit
Dlagram
46A,.........Electronic
Shelf
Power Cj.rcuit DLagram
(Revtsed)
1.....Vo1ume
Level
Setting
Procedure
2..........Organ
Top
Vlew
-
Upper
Lid Removed
-
Photo &
3..........Accompaniment
Manual Underside
View
-
Photo
&
Descrlption
Description
Pictorlal
MODEL 124A ORGAN
Photo
1
2
3
4
5
72
13
74
15
76
16A
L7
L7A
47 .....Model
124A
General Informatlon
48.....
,.. ..Model l24A
Orgat Front
Vlew
-
49..........DescrlptLon
Flg.
18
50....
......L24L
Organ Baek
Vlew
-
Photo
51...
..
. ....Descrlption Fig.
19
52..........L24A
&
AC Tone Color
Stop
Tablets
-
Photo
& Description
53..........124A,
&
AC
Pedal
Sustaln Boards
-
Photo
& Descrlptlon
. . ,
54..........L24A
& AC Solo
Bass Keycap Assenbly
-
Photo
55..........Descrlptlon
Fig.
22
56.....Pedal
Clrcult
Theory
57..........Pedal
Sustaln
Board Assembly
-
Plctorlal
58.....
..
...Pedal
Swltch Scheuatlc
59..........Pedal
and Acconpanlnent
Fllter
Scheoatlc
60..........Pedal
and Accompanlnent Fllter
Board
Assembly
-
plctollal
18
19
20
2L
22
Revised 1975
23
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