Rhodes Piano Service Manual

Wednesday, May 24, 2000 Rhodes Service Manual Page: 1
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RHODES Keyboard Instruments U.S.A.
Post Office Box 4137 1300 East Valencia
Fullerton, California 92634
(714) 879-8080
Copyright © 1979 CBS Musical Instruments A Division of CBS Inc.
P/N 34.0119.000 Printed in U.S.A.
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Rhodes Help Desk
This manual was scanned using OCR and may be subject to typographical errors.
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Rhodes Piano Specifications

General

Sound Generation	Tines struck by hammers
Pedals	Sustain pedal
Action	Hammer action
Output	1/4"
Power	AC power

Summary

Chapter One: The Rhodes Tone Source

The Rhodes Tone Source

Describes the unique tone generation principle of the Rhodes Piano using tuning forks.

Tine Fatigue and Replacement

Chapter Two: The Rhodes Modular Action

Chapter Three: Instructions for Disassembly

Chapter Four: Dimensional Standards and Adjustments

Escapement Adjustment Locations

Describes how to adjust escapement using tone bar springs and harp support shims.

Damper Clearance

Damper Module Adjustment

Explains the two adjustments for damper module tension and alignment.

Striking Line

Re-establishing Striking Line

Timbre Adjustment

Method for adjusting timbre by manipulating the Timbre Adjustment Screw.

Volume Adjustment

Procedure for adjusting volume by changing the pickup-tine gap.

Chapter Five: Tuning the Rhodes Piano

Tuning the Rhodes Piano

Explains basic tuning principles and how notes can go out of tune.

Electronic Tuning

Describes the use of electronic tuning devices and their principles.

Stretch Tuning Chart

Chapter Six: Repair Procedures and Techniques

Tone Generator Assembly Replacement Procedure

Detailed steps for replacing the tone generator assembly and cutting tines.

Key Pedestal Modification Procedure

Instructions for modifying key pedestals for smoother action.

Worn Key Bushing Repair Procedure

Steps for repairing worn key bushings to eliminate sloppy action.

Key Cap Replacement Procedure

Instructions for replacing damaged key caps.

Chapter Nine: Early Design Rhodes Pianos - Maintenance and Rejuvenation

Tear Drop Hammer Head - Groove Removal

Procedure for reshaping worn tear drop hammer heads by sanding.

Tear-Drop Hammer Head - Reshaping to Striking Line

Tone Generator Assemblies Replacement

Chapter Ten: Early Design Rhodes Pianos - Dimensional Standards and Adjustments

Key Dip

Defines Key Dip and how to adjust it using shims under the action rail.

Damper Control

Explains damper clearance and bearing, with adjustments for tension and alignment.

Escapement

Defines escapement and discusses methods to decrease or correct excessive escapement.

Chapter Eleven: Diagrams, Schematics and Pictorials

Schematic - Preamplifier Assembly - 100 Watt Suitcase and Janus I

Schematic diagram for the preamplifier assembly of 100 Watt Suitcase and Janus I models.

Printed Circuit Board - 50 Watt Power Amplifier - Suitcase Piano

Printed circuit board layout for the 50 Watt power amplifier.

Schematic - Power Amplifier, Master and Slave - Super Satellite

Schematic for the master and slave power amplifiers.

Wiring Diagram - Instructor Console

Wiring diagram for the instructor console.