Table Of Contents - Hammond L series Service Manual

TABLE OF
CONTENTS
Page
Introduction
.
iv
Specifications
iv
SECTION
I
- How
the
Organ Operates
1-1
General
1-1
1—2
Tone
Source
1
—
1
1—3
Motor
and
Power
Switch
1—4
1—4
Tone
Generator
1-4
1—5
Manuals
1—5
1—6
Harmonic Drawbars 1—7
1-7
Pedal
Drawbar 1-7
1-8
Pedal
Keyboard
1-7
1—9
Expression Pedal
1—7
1-10
Control
Tabs
1-8
1-11
Preset
Tabs
1-8
1-12
Vibrato
Tabs
.
1-8
1
—
13
Reverberation
Volume
Soft
Tabs
1—8
'
1—
14 Percussion Control
Tabs
1—8
1-15
L-IOOA
Preset Percussion Unit
1-9
1-16
Selector Switch
1-9
1-17
Harmonic
Busbar Switching and
Reiteration
Split ...
1-9
1—18
L—
100—
1
Six-Voice Percussion Feature
.
1—9
1
—
19
Location of Controls
1—9
1-20
Voicing
1-9^
1-21
Operation of Controls
1—9
1—
22 External
Equipment
1
—
1
1—23
Extension Speakers
1—1
1—24
External
Sound
Source
1-1
1—
25 Earphones 1—1
SECTION
II
-
Theory
of
Operation
2-
1
General
2-1
2—2
Preamplifier
2—1
2-3
Vibrato Phase
Shift
Amplifier
2-1
2—4
Percussion Amplifier
2—2
2-5
Reverberation
and Power
Amplifier
2—2
2-6
Power
Supply
2-3
2—7 L-IOOA
Percusion Voicing
Circuitry
2-3
2-
8
Mode
Switch
2-3
2—9
Frequency
Divider
2—4
2-10
Cymbal
and Brush
2-4
2-11
Brush Keying
2-4
2—12
Cymbal
Keying
2—4
2—13 Bmsh
and
Cymbal
Amplification
2-4
2—14
Power
Supply
2-4
2—15
L-
1
00-1
Six-Voice Percussion
Circuitry
2-4
2-16
Power
Supply
2-4
2-17
Push-Button
Circuits
2-5
2-18
Lower
Manual Keying
Circuits
2—5
2-19
Pedal
Keying
Circuit
^
2-5