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Korg PA3X User Manual

Korg PA3X
125 pages
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PRELIMINARY
SERVICE MANUAL

Table of Contents

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Korg PA3X Specifications

General IconGeneral
TypeArranger Keyboard
Sound EngineEDS (Enhanced Definition Synthesis)
MIDIIn, Out, Thru
Keyboard61 keys (with velocity and aftertouch)
Display7-inch TouchView TFT display
StorageInternal SSD
Weight17.5 kg
StylesOver 400 styles
User StylesUp to 1, 200
SoundsOver 1, 100
SamplingYes, with Time Slice function
Sequencer16-track sequencer
OutputsL/R
InputsMic/Line, Guitar
USBYes, 2 ports
Audio RecordingMP3 recording and playback

Summary

SERVICE MANUAL

IMPORTANT SAFETY INSTRUCTIONS

Warnings

Essential safety precautions for service personnel and product handling.

Data Handling

Recommendations for backing up data to prevent loss during servicing.

Disclaimer

Notes about potential differences between manual and product specifications.

Liability

Information on product warranty and manufacturer's liability.

TECHNICAL SPECIFICATIONS

Physical Data

Details about the instrument's cabinet, keyboard, and physical attributes.

Sounds

Information on the Tone Generator, Multitimbral Parts, and sound editing capabilities.

Styles

Details regarding preloaded and user-programmable Styles, including arranger tracks.

Player/Sequencer

Features of the XDS Double Player and Sequencer functions.

Songbook

Description of the programmable music database for styles and MIDI files.

Other Features

Additional features like MP3 player and Arabic scale programming.

User Interface, Connections, and Options

Covers display, controls, connectivity ports, and available options.

PA3X 61-KEYS BLOCK DIAGRAM

Main Board and Power Management

Overview of the main board, power supply, and battery status.

Input/Output and Panel Interfaces

Connections for panel controls, sound, ribbon, and display interfaces.

Memory and Processing Units

Details on SDRAM, FPGA, DSP, and other processing/memory units.

FINAL INSPECTION PROCEDURES

Connecting and Powering On

Instructions for connecting cables and turning on the instrument.

Initial Service Mode Access

Steps to access the Service Mode by pressing specific keys simultaneously.

DISPLAY CALIBRATION PROCEDURE

Touch Panel Calibration

Guide to calibrating the touch screen display for accurate input.

Neutral Position Calibration

Steps to set the display to its neutral position and save calibration.

PA3X TEST LIST

CPU Components Test

Verifies functionality of CPU components, requiring USB Flash and MIDI connections.

AUDIO TEST PROCEDURES

S/PDIF Output Level Check

Steps to check S/PDIF output levels using a digital tool.

MP3 Board Test

Testing the MP3 board functionality, including sampling and play modes.

Audio Output Level Tests

Testing audio output levels across different frequency ranges and channels.

Audio In LG Tests

Procedures for testing audio inputs (Left, Right, MIC) at various levels.

Distortion LG Tests

Testing audio output distortion levels for Left and Right channels.

Noise LG Tests

Testing relative noise levels for audio outputs and headphones.

Audio In HG Tests

Testing audio inputs (MIC) at high gain levels.

Distortion HG Tests

Testing audio output distortion at high gain levels.

Noise HG Tests

Testing relative noise levels for audio outputs at high gain.

FUNCTIONAL TESTS: PANEL BUTTONS

Panel Buttons and Controls Test

Verifying the operation of panel buttons, damper, pedals, and headphone/mic jacks.

Panel Switch and LED Testing

Testing panel switches, ensuring LEDs light correctly when pressed.

Sliders and Joystick Calibration

Calibrating analog controllers including sliders and the joystick.

Ribbon Calibration

Procedure for calibrating the ribbon controller using a specific jig.

Ribbon Calibration Results and Troubleshooting

Interpreting calibration results and troubleshooting common issues.

Potentiometer Test

Testing potentiometer excursion values and joystick center position.

Touch Panel Test

Verifying touch screen response by checking X and Y value changes.

AFTERTOUCH TEST

Aftertouch Strength Calibration

Calibrating aftertouch strength using a weight and dial wheel.

SPEAKER TEST

PaAS Speaker System Check

Connecting to PaAS and verifying SubWoofer, Left/Right Low/High Frequencies.

MEDIA PROCEDURES AND UTILITIES

Format Tab

Procedure for initializing or formatting external storage devices.

Utility Tab

Overview of backup and restore utilities available.

Full Resources Backup

Creating a full backup of internal Factory and User data to a target device.

Full Resources Restore

Restoring the instrument using a previously created full backup file.

Factory Restore

Erasing all changes and restoring the instrument to its original factory state.

Operating System Version Number

Displays the currently installed operating system version.

OPERATING SYSTEM UPDATE

Loading the Operating System

Instructions for downloading and installing the latest OS from Korg's website.

Factory Reset Procedure

Restoring original factory data by loading a RES package from USB.

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