Korg POLY-800II Service Manual

PROGRAMMABLE

POLYPHONIC

SYNTHESIZER

SERVICE

P0LY-800E

MANUAL

1.

TECHNICAL

2.

MIDI

IMPLEMENTATION

3.

STRUCTURAL

4.

BLOCK

5.

CIRCUIT

SPECIFICATIONS

DIAGRAM

DIAGRAM

DIAGRAM

CONTENTS

1

2

13
16
17

6.

P.C.

BOARD

7.

CIRCUIT

8.

CHECK

PROCEDURE

9.

PARTS

DESCRIPTIONS

AND

UST

ADJUSTMENT

20

23

26

29

KEY

1.

C~C49Keys

2.

MASTER

After

Variation
Variation
Temperature

3.

MASTER TUNE

#MAX

bMAX

4.

DCO

OCTAVE:

WAVE

LEVEL:

DCO2INTERVAL:

DETUNE:

5.

VCF

24

CUT

RESONANCE:

KBD

OSC

power

ON

after
after10min.~1

characteristics

+40-70

^40-70

LOW,

FORM:f\16'+

0-3132steps

0-3

0,

6.5,

dB/OCT LPF

OFF:

0-99

TRACK:0,50,

POLARITY:/S

EG

INT:

0-1516steps

CUT

TRIGGER:

6.

NOISE

0-1516steps

7.

EG

0-3132steps

8.

MG

0-1516steps

9.

DCO

BEND

MG
MG

10.

VCF

MG:0-±10

MG

11.

EQUALIZER

TREBLE:

BASS:

12.

DIGITAL

DELAY

FEED

MOD

MOD

EFFECT

13.

SEQUENCER

1

note,

maximumof1,000

SPEED:1step

"J".25-250

MODE:

SINGLE/MULTI

MOD

(JOYSTICK):0-±

MOD

(JOYSTICK):0-±102/3

-6-0-+6(13

-6-0-+6(13

DELAY

TIME:

BACK:

FREQUENCY:

INTENSITY:

LEVEL

restortie

ONE

0-10

min.:

within±5cents

hr.:

within±5cents

0-40°C

cents

cents

MID,

HIGH

1/28'+

JT_

16'+8'+4'+2'

0-12

13,26cents4steps

half-steps

0-15

,

W

OFF-0-

:0-±730

:0-±

2/3

OCT

half-steps13steps

±10

100

OCT

(Q=0-10)16steps

100%

cents(±30

160

cents

160

cents

(±10%)

OCT(±10%)

STEP)

STEP)

±10dB(±20%)

±3dBPOINT:

300Hz(±10%)

(DDL)

0-99

(100

STEP)4msec-1024

0-15

(16

STEP)

(until

oscillation

0-31

(±20%)

0-31

(1=8

0-15
Effect

sound

regardedas1

steps

0-100%

ceases)

(32

STEP)

(32

STEP)1-5TYP

MAX)

(16

STEP)1-1max.

produced

step

regardedas")T

±20%

TIME/REPEAT

1

TECHNICAL

within

±10

cents

1/44'+

steps

1/8

2'

(±20%)

cents)

(±40

cents)

(±40

cents)

±10dB(±20%)

±3dBPOINT:

2

kHz

(±10%)

msec

0.1

Hz-10

Hz

14.

TAPE

INTERFACE

DATA

TRANSMISSION

OUTPUT

INPUT

15.

MIDI

CHANNEL:!-16

PROGRAM

SEQUENCER

SOCKET:

16.

DIMENSIONS

780(W)x286(P)x87.6(H)

17.

WEIGHT

4.4kg(including

18.

ACCESSORIES

Pre-load

Batteries

Shielded

19.

POWER

7W(when

SUM-2X69V

20.

BATTERY

3.5

usage,

21.

EXTERNALDCPOWER

+

22.

ENVIRONMENTAL

Temperature:

Humidity:

23.

TIMETOSTABLE

300

24.

PERMISSIBLE

(withACadapter)

5

90°,

25.

ELECTROSTATIC

Normal

26.

ENCLOSURE

15orless

27.ATPOWER

spike

28.

OUTPUT

C4-C58notes

-6dBm

29.

NOISE

JIS-A

DDL

DDL

30.

ELECTRICAL

FCC

VDE

Certification

LEVEL:

LEVEL:

HIGH3Vp-p

LOW1Vp-p

CHANGE:

CLOCK:

IN/OUT

data

tape

(UM-2x

cord

(2.5mx1)

CONSUMPTION

usingACadapter)

LIFE

hrs.orover

20°C)

7.0V-+

11.0V

0°C-40°C

Below

sec.

LINE

min.

marked

350

without

ns,

500Vpulse

functionat10kVof

HEAT

ON/OFF

noise—less

LEVEL

(±3dB)

LEVEL

AVERAGE

ON

OFF

(U.S.A.)

(W.

-76

(-70

-80dBm

(-74dBmMAX)

WAVE

Germany)

for

4.5

CH

dry-cell

6)

330

(National

dew

(Line

output

GATE

each

SPEED:

mVp-p

approx.

2,000

DISABLE/ENABLE

INT/EXT

mm

batteries)

mA

±10%

Hi-Top

SUM-2x6,

RANGE

CONDITIONS

point

OPERATION

NOISE

malfunction

TEST

BUILD-UP

than

300

Out)

simultaneously,

ON

dBm

TYP

dBm

MAX)

TYP

INTERFERENCE

under

AFTER

VOLUME

at

positive

static

electricity

mVp-p

VOL

GATE

-90

(-84

-90

(-84

review.

(bit/sec)

continuous

POWER

ON:

polarity

MAX,

OFF

dBm

TYP

dBm

MAX)

dBm

TYP

dBm

MAX)

1.

TRANSTITTED

Q

CHANNEL

MESSAGES

DATA

I

0 0 0 n nnn

I00Innn

I0IInnn n

I0IInnn n

II00n n n n

III

0 nnn n

•

nnnn=0~15: The

NOTE

1.

The

relationship

Okkk kkkk

n

channel

between

Okkk

OOOO

0 000 00I

Oppp pppp

0000

number

MIDI

kkkk

000

I

0

0000

setinparameter

program

numbers

0I0 0

0I0 00000

Ovvv

Ovvv

Ovvv

87.

(Oppppppp)

0 000

vOOO

vOOO

vvvv

But

sequencer

and

display

Note

Off

kkkkkkk

Note

On

k kkkkkk=36-84

DCO

Modulation

(4bit

resolution)

VCF

Modulation

(4bit

resolution)

Program

PPP

P PPp=0~63

Pitch

Bender

(7bit

resolution)

vvvvv

LSBisnot

dataisfixedatchannel

program

numbersisshown

=36-84

Change

Change

vv

=64:Center

used

2.

(NOTEI)

here.

SYSTEM

*

Sent

REAL

I

I I

I I

I I

I II0I0

I

I I

I II0

only

during

TIME

MESSAGES

0 0 0

0

sequencer

operation.

Display

number

#n

#12

#87-

#88-

MIDI

Program

Timing

Start

Stop

^°

*i

—62

—

63

Clock

number

B

SYSTEM

©DATA

EXCLUSIVE

DUMP

MESSAGES

IIII0 000

010000

0 0

0

0 0 0

0000

0000

0000

0000

1

M

•

DATA

DUMPissent

NOTE

2.

2688

The2(RAM

DATA

ERROR

10

100001

I I00

dddd

dddd

ssss

ssss

I0I I I

data1word)n

only

whenaDATA

least

DUMP

significant

requestisreceived.

8

bits

are

Exclusive

KORG

Format

POLY-800IIIDOCH

LSB

MSB

LSB

MSB

EOX

check

Status

ID

ID

4bit

t)it|

.

RAM

t)iti

4bitJ

4b.tj

4biti

sum

data.

42H

2IH

dataIword

(5376

Byte)

(N0TE2)

•

Sent

I

I I

0I0 0

00I

0

0 0 0

00I

I I

only

0 0 0

I

00I

0 0

0

II0

0 0 0 0

0

0

I I

whenacheck

0

0

0

I

0

I

I I

sum

error

occurs

duringadata

Exclusive status

KORG

ID

Format

POLY-800H

Data

EOX

ID

Error

dump.

ID

42

H

2IH

OCH

20

H

2.

RECOGNIZED

I

CHANNEL

MESSAGES

RECEIVE

DATA

1000nn n n

1001nnnn

1001nnnn

1011n

101 1nn

101 1nnnn

110

0nnnn

1 1 10n nnn

•

nnnn=0~15:

Okkk

Okkk

Okkk

n n n

n n

Channel

0000000

000 0 0010

011

1 1 1

0I1 1 1 101

Oppp

Oxxx xxxx

number

setinparameter

regardlessofchannel

When OMNI

selected

The

"power

modeisOFF,

channel

number.

on"

defaultisOMNI

kkkk

kkkk

kkkk

1

0 0

pppp

number

the

Oxxx

Ovvv

0000

Ovvv

Ovvv

0000

0000

Ovvv

87.

xxxx

vvvv

0000

vxxx

vxxx

0000

0000

When

vvvv

OMNI

setting.

synthesizer

responds

ON.

Note

Off

Velocity

Note

Velocity

(vvvvvvv>0)

Note

DCO

(4

VCF

(4

OMNI

OMNI

Program

Pitch

LSB

MSB

vvv

modeisON,

onlytomessages

willbeignored

On

willbeignored

Off

Modulation

bit

resolution)

Modulation

bit

resolution)

Mode

Mode

Change

Bender

willbeignored

willberecognized

v v v

all

messages

receivedonthe

(NOTE

(NOTE

Off

On

(NOTE

Change

v=64Icenter

1)

1)

2)

are

received,

currently

NOTE

1.

Note

number

tave

2.

within

Program

64

from

SYSTEM

I I

I III I0I

I

NOTE

3.

Timing

(Okkk

kkkk)=36-84.

the

range.

number

the

REAL

I I I

I I I I I00

clock

(Oppp pppp)=0-63.

data.

TIME

0 0 0

data

canbereceived

MESSAGES

0

Received

onlyinthe

Data

higher

data

period

beyond

this

than63is

between

rangeisvoicedasthe

interpreted

Timing

Start

Stop

reception

as

Clock

(NOTE

of

the

difference

3)

start

and

same

noteinthe

nearest

oc

obtainedbysubtracting

stop

data.

El

SYSTEM

©DATA

EXCLUSIVE

DUMP

MESSAGES

I

0

0010

0

0000

0000

0000 ssss

0000

1

NOTE

4.

The

®DATA

III

0I0 0

00I

000

0 00I

I I

I II0

1000010

0 00I I

I.II0II

2*

(RAM

n=l

DUMP

I I

0 0

0 0 0

dddd

dddd

ssss

data1word)n

REQUEST

I

000 0

00I

0

00I

0

0

II0

000

0

I I

0 0

0

1

Exclusive

KORG

Format

status

ID

ID

42

21

H

H

POLY-800HIDOCH

LSB

4bir

bit!

.

RAM

bit!

MSB4bitJ

LSB

4bit

|

MSB

4bitJ

are

check

EOX

sum

data.

Exclusive

KORG

ID

Format

POLY-800H

Data

EOX

ID

Dump

I

least

significant

0

0

0

I

8

bits

dataIword

(5376

Check

Sum

status

ID

Request

Byte)

data

(NOTE4)

42

H

2IH

OCH

I0H

•

After

DUMP

receivingaDATA

transmission.

DUMP

REQUEST,

thereisa

delayofabout

300ms

before

the

POLY-800II

begins

DATA

3.

USING

I

Communication

I

The

POLY

enables

software.

Sending

DATA

DUMP:

SYSTEM

800II

sequencer

This

parameters

REQUEST.

DUMP

DATA

DATA

■

ERROR:

Receiving

Sent

DUMP:

DUMP

Setupisshown

REQUEST:Acommandtotransmit

EXCLUSIVE

between

can

includes

whenacheck

here:

the

send

and

other

85,

The
data

87,

DATA

POLY-BOOH

and

the

86,

program

storedinthe

and

DUMP

andacomputer.

receive

data

sound

the

following

exchange

data

87,

and

88,

sum

error

data

loadedtothe

64 programsinmemory,

88,

and

chord

transmission

MESSAGES

kindsofinformation

withacomputer

equipped

storedinthe64programsinmemory,

and

chord

occurs

during

memory

data.

receptionofDATA

POLY-800II.

sequencer

memory

program

data.

data.

When

aftera300ms

this

delay.

via

system

exclusive

withaMIDI

sequencer

Thisissentinresponsetoa

DUMP

The

contentsofthis

data,

data.

settings

requestisreceived,

messages.

interface

data

of

the

and

suitable

data,

settings

DATA

DUMP

replace

the

parameters

POLY-800II

begins

This

of

sound

85,86,

Computer

I

Communications

3)

First

the

computer

the

dataissent

Computer

POLY-800U

Examples

obtains

backtothe

Send

Receive

Receive

Send

MIDI

sound

program

synthesizer.

and

OUT

Interface

sequencer

midi

data

i

from

POLY-800II

the

synthesizer

for

editing.

After

editing,

Ifanirregularity

is

detectedinthe

data

loaded

from

the

computer.

Computer

P0LY-800H

I

RAM

data

structure

I

The

RAM

data

Send

Receive

Receive

Send

portionofDATA

MIDI

CHANNEL

SEO DATA

(UNDEFINED)

CHORD

SEO

SEO

PROG

MEMORY

MODE

CKL

CHANGE

DIS/ENA

(UNDEFINED)

PROG

DATA

DUMP

dataisorganizedasshown

0

001H~3Ea H

3E9H-3F0H

3FIH-3F8H

3F9

3FA

3

3FCH-3FFH

400H-A7FH

here.

0 0

H

H

H

F B

H

1

1000

8

8

1

1

1

4

1664

I

Actually,

from

(UNDEFINED

when

relative

address

data

this

dataistransmitted

000H.

does

not

affect

internal

on

MIDI,

each

operation;

~7

byteissplitatits

itisonly

least

usedinthe

significant

check

four

sum.)

bits

and

sent

starting

RAM

Bit

map

data

organization

for

MIDI

CHANNEL,

MSB

SEQ

MODE,

?

6

SEQ

CLK,

5

and

PROG

4

CHANGE

3

o

2

1

LSB

0 0

OH

3

F9H

3

EAH

3

FBH

*

Bit

map

relationship

MIDI

CHANNEL

SEO

MODE

SEO

CLK

PROG

CHANCE

I

Sequencer

data

D/E

has

0

0

0

0

with

parameter

0 0 0

3F9H

3

FAH

3

FBH

the

following

00

0

0

0

0

valuesonfront

H

b3—bO

structure.

H

bO

bO

bO

0

0

0

0

0

0

0

0

panel.

0000-1

0=1

0=1

0=0

-^

0

0

0

1

1 1=1-16

(ONE

TIME),1=2(REPEAT)

MIDI

0

0

0

CHANNEL

(INT),1=2(EXT)

(DISABLE),1=J(ENABLE)

End

__

SEO

SEQ

PROG

87

85

86

88

__

m

_

0

0

0

^~MODE

„

_

CHANGE

f

J

i

Example:

Data:

B4H,

02H,

BCH,

02H,

1kt

0

ki

0

kj

1

k3

B5H,

02H, 01H,

02H,

02H, 02H,

ki ki

ki ki

k^

kj

kj

k3

01

H

02

H

ki

k|

ki

kj

k; k? k^

k3

k3

01H,

B7H,

02H,

01H,

ki ki

kj

ki

k?

k3 k3

B9H,

01H,

00H.

If

most

significant

If

most

significant

Oknknknknknknkn:

I

CHORD

Oknknknknknknkn:

00000000:

34H,

37H,

bitis0:

bitis1:

MEMORY

End

Rest

Tie

Other

notes

existatsame

Block

endatthat

SameasMIDI

/24H—54H,\

In=I

has

—8

/

the

following

SameasMIDI

time.

pointintime.

note

number.

structure.

note

number.

a>

Bit

map

for

each

program.

"•"

Exceeds

UNDEFINED

byte

data

unit.

can

have

any

value;itis

only

usedinthe

check sum.

•

Relationships

between

bit

map

and

parameter

values

listed

on

the

front

panel

(per

program).

DC01

DC02

OCTAVE

OCTAVE

DCOt

WAVE

DC02

WAVE

DCO1

DC01

16'

8'

DC01

DC01

DC02

DC02

DCO2

DC02

DCO DETUNE

DCO

DCO

NOISE

VCF

VCF

DCO1

DCO2

VCF

VCF

MODE

INTERVAL

EG

EG

CUTOFF

TRIG

MG

FREQ

MG

DELAY

MG

DCO

MG

VCF

DEG1

DEG1

4'

2'

16'

8'

4'

2'

LEVEL

INT

POLARITY

LEVEL

LEVEL

INT

INT

ATTACK

DECAY

FORM

FORM

MODE

0

0

0

0

1

1

1

1

1

1

1

1

2

2

3

3

4

4

4—5

5

6

6

7

7

8

8

9

10—9

bl—bO

b3—b2

b5—b4

b7—b6

bO

bl

b2

b3

b4

b5

b6

b7

bl—bO

b6

b3-bO

b7—b4

b3—bO

b4

b7—b5,bl-bO

b6—b2

b6—bO

b7

b3-bO

b7—b4

b3—bO

b7—b4

b4—bO

bl—bO,b7-b5

00=1(["LhOI

00=i(n_Koi

0=0(OFF)J=I(ON)

0=0(OFF)J=I(ON)

0=0(OFF)J=I(ON)

0=0(OFF)J=I(ON)

0=0(OFF)J=I(ON)

0=1(LOWK0I

0=1(LOW),01

=2(MID)

J0=3(HIGHK

=2(MID),

IO=3(HIGHK

=2(f\)

J0-11 =

=2(r\Kio—11=

M=INHIBIT

11

=INHIBIT

INHIBIT

inhibit

0=0(OFF)J=I(ON)

0=0(OFF)J=I(ON)

0=0(OFF)J=I(ON)

00—11=0—3

0=1(WHOLE)x1=2(DOUBLE)

0000—1100=0—12,1101

0000—1111=0—15

0000—1111=0—15

—1111

=INHIBIT

o=i(W)J=2(H

00000—11111=0—31

00000—11111=0—31

0000000-1100011

0=1

(SINGLE),

0000—1111=0—15

0000—1111=0—15

0000—1111=0—15

0000—1111=0—15

00000—11111=0—31

00000—11111=0—31

=0-99,1100100-1111111

=

INHIBIT

I=2(MULTI)

II

21

12

22

13

14

15

16

23

24

25

26

38

18

28

37

35

34

17

27

31

36

81

82

83

84

41

42