Korg DS-8 User manual

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3

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DIGITAL

SYNTHESIZER

M

SERVICE

MANUAL

CONTENTS

1.

SPECIFICATIONS.

2.

MIDI

IMPLEMENTATION..

3.

STRUCTURAL

DIAGRAM

4.

BLOCK

DIAGRAM.

5.

CIRCUIT

DIAGRAM.

1

6.

P.C.

BOARD.21

2

7.

CHECK

AND

2

ADJUSTMENT

PROCEDURE.27

4

8.

REFERENCE

DATA.28

5

9.

PARTS

LIST.30

i.

drcuribAMUND

Keyboard

Voice

Program

Function

Mode

Voice

Parameter

Mode

Combi

Parameter

Mode

Panel

Mode

Switches

Keyboard

Mode

Switches

Programmer

Controls

Performance

Editor

Controls

Balance

Slider

Volume

Slider

Display

Card

Slot

Input

Jacks

Output

Jacks

MIDI

Jacks

Power

Consumption

Power

Supply

Weight

Dimensions

(W

x

H

x

D)

Supplied

Accessories

61

keys

(C—C),

Initial

Touch,

Aftertouch.

8

voices

simultaneously

(Single

Mode).

DS8:

MCR-01

RAM

Card

MCR-02

RAM

Card

MCR-03

RAM

Card

100

Programs,

10

Combinations.

1

Bank

(100

Programs,

10

Combinations).

2

Banks

(200

Programs,

20

Combinations).

4

Banks

(400

Programs,

40

Combinations).

:

Master

Tune:

Transpose:

Foot

Switch

Assign:

Pedal

Assign:

Memory

Protect:

Save

to

RAM

Card.

Load

from

RAM

Card.

MIDI:

MIDI

Filtering:

+

/-

50

cents.

+

/-

12

semitones.

Program

Down,

OSC

select,

Velocity,

Multi

Effect,

Aftertouch,

Portamento.

Volume,

Timbre,

Pitch

Modulation

Generator,

Timbre

Modulation

Generator.

Internal

Off/On,

External

Off/On.

Transmit/Receive

Channel,

Omni

Off/On,

Local

Off/On.

Active

Sensing

Off/On,

Program

Change

Off/On,

Control

Change

Off/On,

Exclusive

Off/On.

Data

Transfer.

:

Pitch:

Pitch

EG:

OSC

1

Waveform:

OSC

2

Waveform:

OSC

1

Timbre

EG:

OSC

2

Timbre

EG:

OSC

1

Ampl.

EG:

OSC

2

Ampl.

EG:

Modulation

Generator:

Portamento:

Joystick:

Velocity:

Aftertouch:

Assign

Mode:

Voice

Name:

Multi

Effect:

OSC

1.

OSC

2,

Detune.

Start

Level,

Attack,

Attack

Level,

Decay,

Release,

Release

Level.

Type,

Spectrum,

Ring.

Limit,

Keyboard

Track.

Type,

Spectrum,

Ring,

Limit,

Keyboard

Track.

Timbre,

EG

Intensity,

Attack,

Decay,

Sustain,

Release,

Keyboard

Track.

Timbre,

EG

Intensity,

Attack,

Decay,

Sustain,

Release.

Keyboard

Track.

Level,

Attack,

Decay,

Sustain,

Release,

Keyboard

Track.

Level,

Attack,

Decay,

Sustain,

Release,

Keyboard

Track.

Waveform

(Triangle,

Sawtooth,

Square,

Sample

&

Hold),

Frequency,

Delay

Time,

Pitch

Intensity,

Timbre/Ampl.

Intensity,

Timbre

Select

(Off,

OSC

1,

OSC

2,

OSC

1

+

2),

Ampl.

Select

(Off,

OSC

1,

OX

2.

OX

1

+

2).

Mode,

Time

Bend

Pitch

(

+

/-1

octave

max.),

Bend

Timbre,

Modulation

Speed.

OX

1

Timbre

EG,

OX

2

Timbre

EG.

OX

1

Ampl.

EG,

OX

2

Ampl.

EG.

Pitch

MG,

Timbre,

OX

1

Ampl.

Level,

OX

2

Ampl.

Level.

Poly/Unison,

Trigger

(Single/Multi:

in

Unison

Mode

only).

Detune

(in

Unison

Mode

only).

Max.

10

characters.

Mode

(Manual

Delay,

Long

Delay.

Short

Delay,

Doubling,

Flanger,

Chorus),

Time,

Feedback.

Speed/Modulation

Frequency,

Modulation

Intensity,

Effect

Level.

:

Controller:

Modulation

Generator:

Multi

Effect:

Multi

Effect

In/Out:

Interval/Detune:

Key

Split/Octave

Shift:

No.

of

Voices:

MIDI

Receive

Channel:

Pan:

Source,

Group

1

—8

Off/On.

Source,

Group

1

—8

Off/On.

Source,

Mode

(Manual

Delay,

Long

Delay,

Short

Delay,

Doubling,

Flanger,

Chorus;

only

when

source

is

Combination).

In

(A,

B,

A+

B),

Out

(A,

B,

A+B).

Interval

(0—12

semitones).

Detune

(+/-25

cents).

Key

Split

Group

1

(Cl

—C8),

Key

Split

Group

2

(Cl

—C8),

Octave

Shift

Group

1

(+1,

+2

octaves).

Octave

Shift

Group

2

(—1,

—2

octaves).

Group

1

—8

(max.

8

voices).

Group

1—8

(MIDI

Channel

1—16).

Group

1—8

(A,

B.

A

+

B).

Program,

Combination,

Function

Mode,

Voice

Parameter

Mode,

Combi

Parameter

Mode.

Single,

Layer,

Double,

Multi.

Numeric

keys

(0—9).

Int,

Ext,

Cursor

keys

«,

>),

Write.

Compare,

Value

slider,

Up/Yes,

Down/No.

Timbre

slider,

EG1

slider,

EG2

slider,

OX

Select

(1,

2,

1

+2),

Velocity

(Off/On),

Aftertouch

(Off/On),

Porta-

ment

(Off/On),

Multi

Effect

(Off/On),

Multi

Effect

Select

(Manual

Delay,

Long

Delay.

Short

Delay,

Doubling,

Flanger,

Chorus).

A—A+B—B.

0—Max.

LCD

(Liquid

Crystal

Display).

Backlit.

40

Characters

x

2

Rows.

1

Damper.

Program

Up,

Assignable

Pedal,

Assignable

Switch.

Output

(A/Mono,

B),

Phones.

IN,

OUT,

THRU.

16W.

Local

Voltage.

10

kg

(21

lbs.

16

oz.).

1024

x

94

x

317mm

(40.3'

x

3.7'

x

12.5").

AC

Power

Cord,

Connection

Cable.

•

Specifications

and

exterior

appearance

are

subject

to

change

without

notice

due

to

product

improvement.

NOTICE

Korg

products

are

manufactured

under

strict

specifications

and

voltages

re¬

quired

by

each

country.

These

products

are

warranted

by

the

Korg

distributor

on¬

ly

in

each

country.

Any

Korg

product

not

sold

with

a

warranty

card

or

carrying^

serial

number

disqualifies

the

product

sold

from

the

manufacturer’s/distributor’s

...orror+w

anH

liahilitv

This

rponirpmnnts

is

for

vour

own

Drotection

and

safetv.

miui

nvimiivitmHiiuN

1.

TRANSMITTED

DATA

1-1.

CHANNEL

MESSAGES

STATUS

SECOND

THIRD

DESCRIPTION

ENA

1000

nnnn

Okkk

kkkk

0100

0000

Note

Off

kkkkkkk

=

24-108

(61

key

+

Transpose)

A

1001

nnnn

Okkk

kkkk

Ovw

vwv

Note

On

kkkkkkk

=

24-108

(61

key

+

Transpose)

vvvvvw

=

16-127

A

1011

nnnn

0000

0001

Owv

vwv

Pitch

Modulation

(Joy

Stick

(+Y))

vvvvvw

=

00-127

C

1011

nnnn

0000

0010

Oww

ww

Timbre

Modulation

(Joy

Stick

(—Y))

vvvvvw

=

00

—

127

C

1011

nnnn

0000

0110

Ovw

vwv

Data

Entry

vvvvvw

=

00-127

E

1011

nnnn

0000

0111

Owv

vwv

Volume

(Volume

Pedal)

vvvvvw

=

00-127

C

1011

nnnn

0100

0000

0000

0000

Damper

Off

(Damper

Pedal)

C

1011

nnnn

0100

0000

0111

1111

Damper

On

(Damper

Pedal)

m

1011

nnnn

0100

0001

0000

0000

Portamento

Off

ww

1011

nnnn

0100

0001

0111

1111

Portamento

On

M

1011

nnnn

0110

0000

0000

0000

Data

increment

E

1011

nnnn

0110

0001

0000

0000

Data

Decrement

E

1100

nnnn

Oppp

pppp

Program

Change

ppppppp

=

00-99

P

1011

nnnn

Ovw

vwv

Channel

Pressure

(After

Touch)

vvvvvw

=

00-127

C

1100

nnnn

0000

0000

Obbb

bbbb

Bender

Change

(Joy

Stick

(X))

Note

1

bbbbbbb

=

00

-

64-127

C

1110

nnnn

0111

1111

0111

1111

Bender

Change

(Max)

(J.S

(X))

Note

1

C

Remark:

nnnn:

MIDI

Channel

Number

(0~

15)

ENA:

Trans

Enable

Mode

A

=

Always

Enable

C

=

Control

On

Mode

P

=

P.

Change

On

Mode

E

=

Exclusive

On

Mode

Note

1:

Normally,

the

upper

8

bits

change

and

the

lower

8

bits

are

fixed

at

00.

However,

the

lower

8

bits

many

change

to

127

when

the

maximum

data

is

input

(in

128

steps).

0000H

4000H

7F7FH

(Min)

(Center)

(Max)

1-2.

SYSTEM

REAL

TIME

MESSAGES

STATUS

DESCRIPTION

1111

1110

Active

Sensing

♦

Trans

Enable

at

ACT

ON.

(6)

1

COMBI

DUMP

REQUEST

BYTE

DESCRIPTION

1111

0000

Exclusive

Status

0100

0010

K0RG

ID

42H

0011

nnnn

Format

ID

3nH

(n

=

ch)

0001

0011

DS-8

10

13H

0001

1001

1

Combi

Oump

Request

19H

1111

0111

E0X

(7)

1

COMBI

DUMP

BYTE

DESCRIPTION

1111

0000

Exclusive

Status

0100

0010

KORG

ID

42H

0011

nnnn

Format

ID

3nH

(n

=

ch)

0001

0011

DS-8

ID

13H

0100

1001

1

Combi

Dump

49H

Oddd

dddd

1

Combi

Data

(56

bytes)

Oddd

dddd

1111

0111

EOX

(8)

ALL

COMBI

DUMP

REQUEST

BYTE

DESCRIPTION

1111

0000

Exclusive

Status

0100

0010

KORG

ID

42H

0011

nnnn

Format

ID

3nH

(n

=

ch)

0001

0011

DS-8

ID

13H

0001

1101

All

Combi

Dump

Request

1DH

1111

0111

EOX

(9)

ALL

COMBI

DUMP

BYTE

DESCRIPTION

1111

0000

1

FvrlncK/o

Qtotiwf

•

—

w»«y(niv

OUUMG

0100

0010

KORG

ID

42H

0011

nnnn

Format

ID

3nH

(n

=

ch)

0001

0011

DS-8

ID

13H

0100

1101

All

Combi

Dump

4DH

Oddd

ddd

All

Combi

Dump

(440

bytes)

Oddd

dddd

1111

0111

EOX

(10)

PANEL

MODE

REQUEST

BYTE

DESCRIPTION

1111

0100

0011

0001

0001

1111

0000

0010

Exclusive

Status

K0RG

ID

42H

nnnn

Format

ID

3nH

(n

=

ch)

0011

0010

0000

DS-8

ID

13H

Panel

Mode

Request

12H

E0X

(10)

PARAMETER

CHANGE

BYTE

1111

0000

0100

0010

0011

nnnn

0001

0011

0100

0001

Oddd

dddd

Oddd

dddd

0000

OOOd

1111

0111

(11)

DATA

LOAD

COMPLETED

BYTE

1111

0000

0100

0010

0011

nnnn

0001

0011

0010

0011

1111

0111

(12)

DATA

LOAD

ERROR

1111

oooo

0100

0010

0011

nnnn

0001

0011

0010

0100

1111

0111

(13)

WRITE

COMPLETED

(14)

WRITE

ERROR

1111

0000

0100

0010

0011

nnnn

0001

0011

0010

0010

1111

0111

DESCRIPTION

Exclusive

Status

K0RG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Parameter

Change

41H

Parameter

No.

Parameter

Value

LSB

Parameter

Value

MSB

E0X

DESCRIPTION

Exclusive

Status

K0RG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Data

Load

Completed

23H

E0X

DESCRIPTION

Exclusive

Status

K0RG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Data

Load

Error

24H

E0X

DESCRIPTION

Exclusive

Status

K0RG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Write

Completed

21H

EOX

DESCRIPTION

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Write

Error

22H

EOX

♦

Trans

Enable

at

Exclusive

ON.

(16)

COMBI

WRITE

REQUEST

BYTE

DESCRIPTION

1111

0000

Exclusive

Status

0100

0010

KORG

ID

42H

0011

nnnn

Format

ID

3nH

(n

=

ch)

0001

1011

DS-8

ID

13H

0001

1010

Combi

Write

Request

1AH

Oddd

dddd

Combi

Program

No.

00

-

09H

1111

0111

E0X

•Receive

Enable

at

Exclusive

ON.

(6)

P

ANEL

MODE

BYTE

DESCRIPTION

1111

0000

Exclusive

Status

0100

0010

K0RG

ID

42H

0011

nnnn

Format

ID

3nH

(n

=

ch)

0001

0011

DS-8

ID

13H

0100

0010

Panel

Mode

42H

0000

Oddd

Panel

Mode

Data

ddd

=

000:

Program

1111

0111

E0X

001:

Voice

Parm

010:

Combi

Parm

011:

Function

100:

Combi

(7)

P

ANEL

MODE

CHANGE

BYTE

DESCRIPTION

1111

0000

0100

0010

0011

nnnn

0001

0011

0100

1110

0000

Oddd

1111

0111

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Panel

Mode

Change

4EH

Panel

Mode

Data

ddd

=

000:

Program

E0X

001:

Voice

Parm

010:

Combi

Parm

Oil:

Function

100:

Combi

(8)

K

EYBOARD

MODE

BYTE

DESCRIPTION

1111

0000

0100

0010

0011

nnnn

0001

0011

0100

1011

0000

OOdd

1111

0111

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Keyboard

Mode

4BH

Keyboard

Mode

Data

dd

=

00:

Single

E0X

01:

Layer

10:

Double

11:

Multi

(9)

KEYBOARD

MODE

CHANGE

BYTE

DESCRIPTION

1111

0000

0100

0010

0011

nnnn

0001

0011

0100

1010

0000

OOdd

1111

0111

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Keyboard

Mode

Change

4AH

Keyboard

Mode

Data

dd

=

00:

Single

E0X

01:

Layer

10:

Double

11:

Multi

1-3.

SYSTEM

EXCLUSIVE

MESSAGES

(1)

DEVICE

ID

~

BYTE__

1111

0000

0100

0010

0011

nnnn

0001

0011

1111

0111

_

(2)

1

VOICE

DUMP

BYTE

__

1111

0000

0100

0010

0011

nnnn

0001

0011

0100

0000

Oddd

dddd

Oddd

dddd

1111

0111

__

(3)

ALL

VOICE

DUMP

1111

0000

0100

0010

0011

nnnn

0001

0011

0100

1100

Oddd

dddd

Oddd

dddd

1111

0111

(4)

1

COMBI

DUMP

BYTE

1111

0000

0100

0010

0011

nnnn

0001

0011

0100

1001

Oddd

dddd

Oddd

dddd

1111

0111

(5)

ALL

COMBI

DUMP

1111

0000

0100

0010

0011

nnnn

0001

0011

0100

1101

Oddd

dddd

DESCRIPTION

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

EOX

DESCRIPTION

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

1

Voice

Dump

40H

1

Voice

Data

(96

bytes)

DESCRIPTION

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

All

Voice

Dump

4CH

All

Voice

Data

(7544

bytes)

DESCRIPTION

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

I

Combi

Dump

49H

I

Combi

Data

(56

bytes)

DESCRIPTION

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

All

Combi

Dump

4DH

2.

RECOGNIZED

RECEIVED

DATA

2-1.

CHANNEL

MESSAGES

STATUS

SECOND

THIRD

DESCRIPTION

ENA

1000

nnnn

Okkk

kkkk

Oxxx

xxxx

Note

Off

Note

2

A

1001

nnnn

Okkk

kkkk

0000

0000

Note

Off

Note

2

A

1001

nnnn

Okkk

kkkk

Owv

ww

Note

On

Note

2

A

wvwvv

=

1-127

1011

nnnn

0000

0001

Owv

ww

Pitch

Modulation

c

1011

nnnn

0000

0010

Owv

ww

Timbre

Modulation

c

1011

nnnn

0000

0110

Owv

ww

Data

Entry

wwvw

=

00-127

E

1011

nnnn

oooo

0111

Owv

WW

Volume

c

1011

nnnn

0000

1010

OOOx

xxxx

Panpot

(A)

c

1011

nnnn

0000

1010

001

x

xxxx

Panpot

(A

+

B)

c

1011

nnnn

0000

1010

OlOx

xxxx

Panpot

(A

+

B)

c

1011

nnnn

0000

1010

01

lx

xxxx

Panpot

(B)

c

1011

nnnn

0100

0000

0000

0000

Damper

Off

c

1011

nnnn

0100

0000

0111

1111

Damper

On

c

1011

nnnn

0100

0001

0000

0000

Portamento

Off

c

1011

nnnn

0100

0001

0111

1111

Portamento

On

c

1011

nnnn

0110

0000

0000

0000

Data

increment

E

1011

nnnn

0110

0001

0000

0000

Data

Decrement

E

1011

nnnn

0111

1010

0000

0000

Local

Off

A

1011

nnnn

0111

1010

0111

1111

Local

On

A

1011

nnnn

0111

1011

0000

0000

All

Notes

Off

A

1011

nnnn

0111

1100

0000

0000

OMNI

Off

(A.N.

Off)

A

1011

nnnn

0111

1101

0000

0000

OMNI

On

(A.N.

Off)

A

1011

nnnn

0111

1110

Oxxx

xxxx

(All

Notes

Off)

A

1011

nnnn

0111

1111

0000

0000

(All

Notes

Off)

A

1100

nnnn

oppp

pppp

Program

Change

Note

3

P

1101

nnnn

Owv

ww

After

Touch

C

1110

nnnn

Oxxx

xxxx

Obbb

bbbb

Bender

Change

c

Remark:

nnnn:

MIDI

Channel

Number

(0-

15)

xxxx:

Don’t

Care

ENA

:

Receive

Enable

Mode

A

=

Always

Enable

C

=

Control

On

Mode

P

=

P.

Change

On

Mode

E

=

Exclusive

On

Mode

Note

2:

Data

of

notes

24-108

will

accepted

as

they

are.

Data

outside

the

range

(0

-

23,109-127)

will

be

shifted

an

octave

at

a

time

until

the

data

falls

in

the

range.

Note

3:

PROGRAM

modes

can

be

selected

from

numbers

00

to

99.

0

to

9

can

be

used

to

select

COMBINA¬

TION

PROGRAM

modes.

However,

when

three

digit

numbers

are

entered

into

the

PROGRAM

mode

only

the

last

two

digits

are

valid

(for

example,

100

is

received

as

00;

127

is

received

as

27)

If

two

diqit

numbers

are

entered

into

the

COMBINATION

PROGRAM

mode,

only

the

final

digit

is

valid

(for

exam¬

ple,

10

is

received

as

0;

127

is

received

as

7).

2-2.

SYSTEM

REAL

TIME

MESSAGES

STATUS

DESCRIPTION

1111

1110

*

RpriAivo

Pnahlo

a*

ARTIOM

Active

Sensing

(11)

P

ANEL

MODE

CHANGE

DESCRIPTION

(12)

K

EYBOARD

MODE

REQUEST

1111

0000

0100

0010

0011

nnnn

0001

0011

0001

1011

1111

0111

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Panel

Mode

Change

4EH

Panel

Mode

Data

E0X

ddd

=

000:

Program

001:

Voice

Parm

010:

Combi

Parm

Oil:

Function

100:

Combi

DESCRIPTION

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Keyboard

Mode

Request

1BH

EOX

(13)

K

EYBOARD

MODE

CHANGE

1111

0000

0100

0010

0011

nnnn

0001

0011

0100

1010

0000

OOdd

1111

0111

DESCRIPTION

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Keyboard

Mode

Change

4AH

Keyboard

Mode

Data

EOX

dd

=

00:

Single

01:

Layer

10:

Double

11:

Multi

(14)

PARAMETER

CHANGE

BYTE

1111

0000

0100

0010

0011

nnnn

0001

0011

0100

0001

Oddd

dddd

Oddd

dddd

0000

OOOd

1111

0111

(15)

VOICE

WRITE

REQUEST

1111

0000

0100

0010

0011

nnnn

0001

0011

0001

0001

Oddd

dddd

1111

0111

DESCRIPTION

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Parameter

Change

41H

Parameter

No.

Parameter

Value

LSB

Parameter

Value

MSB

EOX

DESCRIPTION

Exclusive

Status

KORG

ID

42H

Format

ID

3nH

(n

=

ch)

DS-8

ID

13H

Voice

Write

Request

11H

Program

No.

00-63H

EOX