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Korg S3 Service Manual

Korg S3
58 pages
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Korg S3 Specifications

General IconGeneral
Polyphony16 voices
Sound Engine/Synthesis MethodPCM
Songs10
Year Released1990
EffectsReverb, Chorus
Sequencer Resolution96 PPQ
Patterns100
OutputsStereo Out
MIDIIn, Out, Thru
OscillatorsNot applicable
FiltersNot applicable

Summary

1. Specifications

4) Controller

Lists and counts various controller types like pads, keys, and encoders.

5) I/O Jack

Lists input and output jacks for various connections like MIDI, phones, and audio.

4. How to Disassemble

1. How to remove the lower case

Instructions for disassembling the lower case and rear panel.

2. How to remove the P. C. BOARD assembly

Steps to remove the main P.C. board assembly from the upper case.

5. Block Diagram

6. Circuit Diagram

7. P. C. Boards

8. System Explanation

2) Key Scan, Key Assign, Key Velocity, Foot SW Assign

Describes key scanning, assignment, velocity, and foot switch functions.

3) MIDI IN/OUT Process

Details the MIDI input and output processing.

4) SMPTE IN/OUT Signal Process

Explains the SMPTE signal processing for synchronization.

5) PCM Sound Source Sound Process

Describes the processing of PCM sound source data.

9. Main Circuit Explanation

11. IC Check Point

CPU Check Points (UPD70320GJ-8-5BG)

Waveform examples for CPU check points like Reset and Clock signals.

MB623139 Check Points

Waveform examples for MB623139 check points like Key Assign and Scan.

12. Parts List

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