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MG-1
Service manual
Realistic Concertmate MG-1 Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Specifications
Power Requirements
Circuit Description
Polyphonic Tone Generator
Keyboard and Trigger Extractor Circuitry
Tone Source Summer
Linear Voltage to Exponential Current Converter
Tone Source
Noise Generator
Bell Tone Generator
Voltage Controlled Lowpass Filter
Typical Tone Source Waveforms
VCF Frequency Response Curves
Voltage Controlled Amplifier
Contour Generator
Modulation Oscillator and Sample/Hold
Regulated Power Supply
Disassembly and Adjustments
Removing the Base
Removing Control Printed Circuit Board
Removing Keyboard Printed Circuit Board
Removing Keys
Removing Keyboard Switches
Recommended Test Equipment
General Information
Keyboard Current Source Adjustment
Polyphonic Tune Adjustment
Tone Source 1 Square Wave Adjustment
Contour Tone Sources
Master Volume
VCA Balance Adjustment
Repair and Troubleshooting
Connector Repair and Replacement
Keyboard and Case Maintenance
Troubleshooting
Linear IC
Cmos IC
Parts List
Control Printed Circuit Board 1 Schematic Diagram
Keyboard and Jack Boards 2 and 3 Schematic Diagram
Schematic Diagrams
Contents
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Table of Contents
Troubleshooting
Repair and troubleshooting
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Keyboard and case maintenance
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Table of Contents
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