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Leslie 760 User Manual

Leslie 760
20 pages
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Leslie 760 Specifications

General IconGeneral
TypeRotary speaker
Channels1
ConfigurationSingle Channel
Rotor SpeedFast and slow
Rotation Speed40-400 RPM
RotorsBass Rotor, Horn Rotor
Woofers1 x 15" Woofer

Summary

Introduction

Leslie Speaker Model 760

Detailed description of the Leslie Speaker Model 760, its output, and compatibility with organs.

Block Diagram: Leslie Speaker Model 760

Visual representation of the Leslie Speaker Model 760's signal path and component interaction.

Specifications

Operation

Preparing Model 760 For Use

Instructions for setting up the Leslie Speaker Model 760 for initial use and connection.

Volume Adjustment

Procedure for adjusting the volume control for optimal sound output based on preference.

Console Connector Controls

Explanation of the echo and tremolo controls found in console connector kits.

Tremolo Control

Details on the tremolo control's effect on rotor speed (tremolo and chorale).

Echo Control

Description of the echo control's functions for speaker output selection (main/ensemble/echo).

Speaker Cable 021600

Information regarding the 9-conductor speaker cable, its length, and assembly.

Multiple Speaker Installations

Guidance on adding additional Leslie speakers using power relays for improved sound distribution.

Special Uses

Recommendations for broadcasting and recording with the Leslie speaker.

Service

Line Voltage

Importance of correct line voltage for speaker performance and component safety.

Ordering Parts

Instructions on how to order replacement parts locally or via EMI numbers.

Electronic Servicing

Amplifier

Overview of the two-channel solid-state amplifier design and construction.

Voltage Checks

Procedure for checking circuit board voltages and expected values.

Crossover Network Circuit Assembly

Bass Amplifier Circuit Assembly

Treble Amplifier Circuit Assembly

Power Supply

Power Supply Transformer

Instructions for removing and replacing the power supply transformer.

234-250 Volt Conversion

Procedure for converting the power transformer for different voltage inputs.

Parts Side: Power Supply Circuit Assembly

Motor and Brake Circuit Operation

Mechanical Servicing

Motor Lubrication and Cleaning

Guidance on maintaining and cleaning the speaker motors for optimal performance.

Small Motor Shaft Operation and Adjustment

Details on the small motor shaft's function and adjustment for rotor engagement.

Motor Noises

Common causes and troubleshooting for excessive motor noises.

Drive Belts

Information about the drive belts and their importance for rotor operation.

Treble Drive Belt

Specific instructions for adjusting and replacing the treble drive belt.

Bass Drive Belt

Guidance on proper bass drive belt tension and its effect on rotor speed.

Speaker Replacement

Treble Speaker Replacement

Steps for removing and installing the treble speaker unit.

Bass Speaker Replacement

Procedures for replacing the bass speaker in the unit.

Rotor Replacement

Bass Rotor Replacement

Detailed instructions for removing and installing the bass rotor assembly.

Bass Rotor, Upper Bearing Replacement

Steps for replacing the upper bearing assembly of the bass rotor.

Bass Rotor, Lower Bearing Replacement

Procedure for replacing the lower bearing assembly of the bass rotor.

Treble Horn Replacement

Treble Horn Lubrication

How to lubricate the treble horn spindle for smooth operation.

Treble Horn Spindle Removal

Steps to remove the treble horn spindle for servicing or replacement.

Horn Reflector Replacement

Instructions for replacing the horn reflector assembly.

Parts List: Model 760 Speaker Mechanical Assembly

Exploded View: Model 760 Speaker Mechanical Assembly

Schematic: Model 760 Speaker

Plugs & Sockets

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