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Hammond

Musical Instrument

L series

Hammond L series User Manual

Name: Hammond L series
Brand: Hammond
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79 pages

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SERVICE

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HO-735

HAMMOND ORGAN

COMPAIW

DIVISION

OF HAMMOND

CORPORATION

11700 Copenhagen

Court

Franklin Park,

lUinois

6013]

(312)

766-6950

Table of Contents2
List of Illustrations4
Introduction5
Specifications5
- How the Organ Operates6
- L-100 Console, Front View6
SECTION - How6
General6
Tone Source6
- L-100 Console, Rear View7
- Block Diagram8
- Typical Tone Generator9
- Magnet Locations on Tone Generator9
Motor and Power Switch9
Tone Generator9
Filter Locations and Frequency Terminations on Generator Cover10
Manuals10
Harmonic Drawbars10
- Manual Wiring Chart11
- Drawbars & Control Tabs12
Pedal Drawbar12
Pedal Keyboard12
Expression Pedal12
Control Tabs13
Preset Tabs13
Vibrato Tabs13
Percussion Control Tabs13
- Selector Switch14
- Six-Voice Percussion Feature14
- Location of Controls14
- Operation of Controls14
- Voicing14
  - Preset Percussion Unit15
  - Six-Voice Percussion Controls15
External Equipment16
- Extension Speakers16
- External Sound Source16
- Earphones16
Percussion Amplifier18
Reverberation and Power Amplifier18
- Circuitry18
- Mode Switch19
- Frequency Divider20
- Cymbal and Brush20
- Brush Keying20
- Cymbal Keying20
- Power Supply20
- Push-Button Circuits21
- Lower Manual Keying Circuits21
- Pedal Keying Circuit21
Disassembly23
General23
Upper Manual Key23
Lower Manual Key23
Drawbar Contact Spring23
Upper Manual24
Lower Manual24
Generator24
Motor24
Pedal Keyboard24
Swell Assembly25
Tab25
Pilot Light on Power Switch25
- Six-Voice Percussion25
Practical Service Suggestions26
General26
Organ Performance Check26
Procedure26
Vibrato27
- L-100A Percussion Performance Check28
- Both Hiss Voices Silent29
- No Percussion Output29
- One Voice29
- Output Level Adjustments29
Troubleshooting29
- Key Does Not Play or Harmonic Is Missing30
- Organ Does Not Play30
- Full Volume Pedal Cipher31
- Hum31
- One Note Weak31
- Replacing Tubes31
SECTION Diagrams32
General32
- Schematic Diagram40
- Wiring Diagram46
SECTION VI -Parts49
- Parts List54
- Index54

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Hammond L series Specifications

General

Brand	Hammond
Model	L series
Category	Musical Instrument
Language	English

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