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L Series
Hammond Organ L Series - User Manual
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SERVICE
MANUAL
HAMMOND
ORGAN
COMPANY
DIVISION
OF
HAMMOND
CORPORATION
11700
Copenhagen
Court
/
Franklin
Park,
Illinois
60131
(312)
766-6960
2
Table of Contents
Main Page
Table of Contents
2
Introduction
5
Specifications
5
SECTION I - How the Organ Operates
5
General
6
Tone Source
6
Expression Pedal
6
Control Tabs
6
Preset Tabs
13
Vibrato Tabs
13
Percussion Control Tabs
13
L-100A Preset Percussion Unit
14
Selector Switch
14
Harmonic Busbar Switching and Reiteration Split
14
L-100-1 Six-Voice Percussion Feature
14
Location of Controls
14
Operation of Controls
14
External Equipment
16
Extension Speakers
16
External Sound Source
16
Earphones
16
SECTION II - Theory of Operation
17
Vibrato Phase Shift Amplifier
17
Percussion Amplifier
18
Reverberation and Power Amplifier
18
Power Supply
19
L-100A Percusion Voicing Circuitry
19
Mode Switch
19
Frequency Divider
20
Cymbal and Brush
20
Brush Keying
20
Cymbal Keying
20
Brush and Cymbal Amplification
20
Power Supply
20
L-100-1 Six-Voice Percussion Circuitry
20
Push-Button Circuits
21
Lower Manual Keying Circuits
21
Pedal Keying Circuit
21
Upper Manual Key
23
Lower Manual Key
23
Drawbar Contact Spring
23
Upper Manual
26
Lower Manual
26
L- 100-1 Six-Voice Percussion Performance Check and Troubleshooting
29
Output Level Adjustments
29
Programmed Voice Does Not Speak
29
All Percussion Voices Silent
29
Both Hiss Voices Silent
29
No Voice Response from Pedals
29
No Voice Response from Manual
29
No Percussion Output
29
Troubleshooting
29
Organ Does Not Play
30
Key Does Not Play or Harmonic Missing
30
SECTION V-Diagrams
31
General
31
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Hammond Organ L Series Specifications
General
Brand
Hammond Organ
Model
L Series
Category
Musical Instrument
Language
English
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