Korg PA50 Service Manual

Edited by: Korg USA

January 13, 2005

CONTENTS

Page:

1. Technical Specification

PA50

2-24. Circuit & Block & Structural Diagram 25-78. QA Full inspection (Diagnostics and tests performed at factory)

79-83. Parts List

Issued date: April 13th 2004

Issued by: KORG INC.

1st Edition

TECHNICAL SPECIFICATIONS Model: KORG PA50

Keyboard 61 keys, with velocity

Operating System

Display Backlight custom LCD

Data storage

Sound generation system KORG Hi-Hyper Integrated. Polyphony 62 voices . 62 oscillators . Filters with resonance. Multitimbricity 40 tracks (2 x 16 Sequencer , 4 Realtime , 4 Pads) Sound memory 32 Mbyte of PCM ROM , with Stereo Piano

Programs

Effects 4 stereo digital multi-effect systems (with 89 effect types each)

Performances

Styles

Single Touch Settings (STS) 4 x 304 ( memorize Realtime tracks )

Style controls

KORG OPOS(Objective Portable Operating System) . Multitasking . Load While-Play feature . SSD (Solid state disk)-resident . Upgradable from floppy disk .

8MB(>20MB equivalent ) Internal Solid State disk(SSD), 1.44MB floppy Disk Driver(MS-DOS compatible)

>660(Single oscillator Double Oscillater),including Stereo Piano and GM level 2-compatible Programes 32Drum kits, 128 User programs 64 User drum kits easy and Full Program Editing.

160 Realtime Performance Memories . Up to 304 Styles Performances with 4 Single Touch Setting each.

Up to 304 Styles ,Solid State Disk-resident , freely reconfigurable 8 Style tracks , 4 Single Touch Settings per-Style , 48 User Styles , programmable Style Performance and Single Touch Settings . Direct Disk reading features . Compatible with old i-Series Styles . Style Record with Edit Functions , Step Edit , Event Edit .

4 Variations , 2 Fills , 2 Intros , 2 Endings , Counter In / Break , Synchro Start / Stop . Tap Tempo / Reset , Fade In / Out , Bass Inversion , Manual Bass , Tempo Lock , Memory , Accompaniment Volume , Accmpaniment Mute , Drum Mapping , Snare & Kick Designation , Single Touch .

General controls

Pads 4 Assignable Pads + Stop button.

Song play

Song / Backing Sequence Easy Record function . Full featured sequencer . 16 tracks . SMF native format. Pedals Damper , Assignable (continuous .footswitch) Realtime controllers Joystick(pitch+modulation) , Assignable slider , Pads) MIDI IN , OUT , THRU . Individual track assignement . Auto-setup functions (MIDI Setup) Audio Inputs 2 x In, line impedance Audio Outputs 2 Main (Left/Mono , Right)

Main Amplifier 2 x 15 Watt Amplifier Speakers 2 double-cone speakers ( bass-reflex box ) . Power Consumption 26W Dimensions W:1054mm, D:393 mm, H : 150 mm ( wihtout music stand ). Weight 11.25kg. Accessories User's Manual , Switch Adapter & AC Power cable , Music Stand .

Mater volume , Ensemble , Octave Transpose , Master Transpose , So it Point , Style Change . Tracks Volume . Quarter of Tone , Assignable Slider , Joystick , Dial .

XDS Crossfade Dual Sequencer player . 2 Sequencers with separate . Start / Stop , Pause, <<(Rewind) and >> (Fast Forward) controls . Balance control . Lyrics data are displayed on-screen . Jukebox function . SMF Direct player (formats 0 and 1)

Options EXP-2 (Foot Controller), XVP-10 (Exp/Volume Pedal), PS-1 (Footswitch), DS-1H (Damper Pedal)