Roland PX-7B User Manual

SERVICE NOTES
Issued by RJA
Copyright © 2013 Roland Corporation
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of Roland Corporation.
CC-KWS17058887E0
Oct. 2013 PX-7B, PX-7C
PX-7B
PX-7C
Table of Contents
Keyboard Parts List (PX-7B)............................................2
Keyboard Parts List (PX-7C)............................................3
Keyboard Assembly Procedure ......................................4
Circuit Board (Low, Mid).................................................9
Circuit Board (High) .......................................................12
Circuit Diagram (Low) ...................................................14
Circuit Diagram (Mid)....................................................16
Circuit Diagram (High) ..................................................18
This service note contains information about repair parts and the repair method of the keyboard section.
For other sections of each model, please refer to each service note.
Revise Information
Dec. 2, 2013 p. 6 Changed grease.
May. 24, 2016 p. 2 Added parts.
Jul. 29. 2016 p. 3 Added the PX-7C keyboard parts list.
Aug. 10, 2016 p. 3 Changed a part code.

Roland PX-7B Specifications

General

Brand	Roland
Model	PX-7B
Category	Musical Instrument
Language	English

Summary

Keyboard Parts List (PX-7B)

Keyboard Parts List (PX-7C)

Keyboard Assembly Procedure

Removing the Key

Procedure for safely removing a key from the keyboard mechanism.

Installing the Key

Steps for correctly installing a key back into the keyboard mechanism.

Installing the Circuit Board

Circuit Board Installation Steps

Detailed steps for mounting and securing the circuit board onto the sub-chassis.

Application of Grease

Greasing Points Identification

Identifies specific points on the keyboard mechanism requiring grease application.

Grease Amount Guidelines

Visual guide demonstrating the correct quantity of grease for key components.

Hammer Placement

Hammer Placement Details

Guidance on correctly positioning hammers based on shape, color, and frequency range.

Affixing the Cushion

Cushion Placement Instructions

Instructions for correctly affixing various types of cushions to the keyboard mechanism.

Circuit Board (Low, Mid) Diagram

Printed Wiring Board (LH Assembly) Diagram 1

Circuit Board (High) Diagram

Printed Wiring Board (LH Assembly) Diagram 2

Circuit Diagram (Low) - Part 1

Circuit Diagram (Low) - Part 2

Circuit Diagram (Mid)

Circuit Diagram (High Frequency IC)

Circuit Diagram (High) - Part 1

Circuit Diagram (High) - Part 2