General Music RPStudio User Manual

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CODE : 270127
Index & Warnings
Soldering point.
Male connector.
Female connector.
M/F faston connector.
Test point.
Supply voltage.
Logic supply ground.
Analog supply ground.
Signal ground.
Chassis ground.
Flag joined with one or more flags with the same signal name inscribed.
GENERALMUSIC S.p.A. Sales Division: 47048 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12 - tel. 0541/959511 - tlx 550555 GMUSIC I - fax 0541/957404
Opening & Disassembling Instructions
2
Assembly & Wiring Connections
3
Autotest Chart, Block Diagram
4
Controls Panel, Power Amplifier & Supply, Aux & Midi I/O, Phones Boards
5
Keyboard Contact Boards & Keyboard Interface Board
6
Cpu & Sound Generator Board
7
Spare Part List
8
Notice
Service must be carried out by qualified personnel only.Any tampering carried out by unqualified personnel during the guarantee
period will forfeit the right to guarantee.
For a correct operation of the instrument, after having switched off, be careful to wait at least 3 seconds before switching on again.
To improve the device's specifications, the schematic diagrams may be subject to change without prior notice.
Schematic Notes
All components marked by this symbol have special safety characteristics, when replacing any of these components use only
manufacturer's specified parts.
The (µ) micro symbol of capacitance value is substituted by U. The (Ω) omega symbol of resistance value is substituted by E.
The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified. All resistors are 1/8W unless otherwise specified.
ATTENTION
Observe precautions when handling
electrostatic sensitive devices
SERVICE MANUAL
Schematic Diagrams

General Music RPStudio Specifications

General

Brand	General Music
Model	RPStudio
Category	Musical Instrument
Language	English

Summary

Schematic Notes

Component Safety Characteristics

Components marked with a symbol have special safety characteristics.

Component Symbol Substitutions

Substitutions for micro and omega symbols in capacitance and resistance values.

Capacitor and Resistor Ratings

Standard voltage ratings for electrolytic capacitors and power ratings for resistors.

Connection and Test Point Symbols

Symbols used to denote connectors, test points, and ground types.

Handling Electrostatic Sensitive Devices

Precautions for handling electrostatic sensitive devices.

Opening & Disassembling Instructions

Removing the Cover

Procedure for unscrewing and lifting the rear cover.

Removing the Control Panel

Instructions for unscrewing the control panel and its supports.

Removing the Keyboard

Procedure for unscrewing the keyboard from the chassis.

Removing Individual Keys

Methods for removing natural and sharp keys, with specific notes for TP20 and TP8.

Assembly & Wiring Connections

Autotest Chart and Block Diagram

Autotest Chart

Table detailing test operations, events, and expected outcomes for system diagnostics.

Block Diagram

Visual representation of the system's interconnected components.

Controls Panel, Power Amplifier & Supply, Aux & Midi I/O, Phones Boards

Keyboard Contact Boards & Keyboard Interface Board

Keyboard Interface Board Schematic

Schematic diagram for the keyboard interface board.

Keyboard Timing Table

Timing diagram illustrating signal sequences for keyboard operations.

CPU & Sound Generator Board Schematic

Spare Part List