Korg Poly-800II User manual

PROGRAMMABLE

POLYPHONIC

SYNTHESIZER

P0LY-800E

SERVICE

MANUAL

CONTENTS

TECHNICAL

SPECIFICATIONS

MIDI

IMPLEMENTATION

STRUCTURAL

DIAGRAM

BLOCK

DIAGRAM

CIRCUIT

DIAGRAM

P.C.

BOARD

CIRCUIT

DESCRIPTIONS

CHECK

AND

ADJUSTMENT

PROCEDURE

PARTS

UST

TECHNICAL

KEY

C~C49Keys

MASTER

OSC

After

power

Variation

after

0-10

min.:

within

±5

cents

Variation

after

min.~1

hr.:

within

±5

cents

Temperature

characteristics

0-40°C

within

±10

cents

MASTER TUNE

#MAX

+40-70

cents

bMAX

^40-70

cents

DCO

OCTAVE:

LOW,

MID,

HIGH

WAVE

FORM:

16'+

1/2

1/4

1/8

JT_

16'

LEVEL:

0-31

steps

DCO

INTERVAL:

0-12

half-steps

steps

DETUNE:

0-3

6.5,

13,

cents

steps

VCF

dB/OCT LPF

CUT

OFF:

0-99

half-steps

100

steps

RESONANCE:

0-15

(Q=0-10)

steps

KBD

TRACK:

50,

100%

POLARITY:/S

INT:

0-15

steps

CUT

OFF

±10

OCT

(±20%)

TRIGGER:

SINGLE/MULTI

NOISE

0-15

steps

0-31

steps

0-15

steps

DCO

MOD

BEND

730

cents

(±

cents)

160

cents

(±40

cents)

(JOYSTICK):

160

cents

(±40

cents)

10.

VCF

MOD

MG:0-±10

2/3

OCT

(±10%)

(JOYSTICK):

2/3

OCT

(±

10%)

11.

EQUALIZER

TREBLE:

-6-0-

(13

STEP)

±10

(±20%)

±3

POINT:

kHz

(±10%)

BASS:

-6-0-

(13

STEP)

±10

(±20%)

±3

POINT:

300Hz(±10%)

12.

DIGITAL

DELAY

(DDL)

DELAY

TIME:

0-99

(100

STEP)

msec-1024

msec

FEED

BACK:

0-15

(16

STEP)

0-100%

(until

oscillation

ceases)

MOD

FREQUENCY:

0-31

(32

STEP)

0.1

Hz-10

(±20%)

MOD

INTENSITY:

0-31

(32

STEP)

TYP

(1=8

MAX)

EFFECT

LEVEL

0-15

(16

STEP)

max.

Effect

sound

produced

13.

SEQUENCER

note,

rest

tie

regarded

step

maximum

1,000

steps

SPEED:

step

regarded

")T

"J"

25-250

±20%

MODE:

ONE

TIME/REPEAT

14.

TAPE

INTERFACE

DATA

TRANSMISSION

SPEED:

approx.

2,000

(bit/sec)

OUTPUT

LEVEL:

4.5

mVp-p

INPUT

LEVEL:

HIGH

Vp-p

LOW

Vp-p

15.

MIDI

CHANNEL:!-16

PROGRAM

CHANGE:

DISABLE/ENABLE

SEQUENCER

CLOCK:

INT/EXT

SOCKET:

IN/OUT

16.

DIMENSIONS

780(W)

286(P)

87.6(H)

17.

WEIGHT

4.4

(including

dry-cell

batteries)

18.

ACCESSORIES

Pre-load

data

tape

Batteries

(UM-2x

Shielded

cord

(2.5m

19.

POWER

CONSUMPTION

(when

using

adapter)

SUM-2X6

330

±10%

20.

BATTERY

LIFE

3.5

hrs.

over

(National

Hi-Top

SUM-2x6,

continuous

usage,

20°C)

21.

EXTERNAL

POWER

RANGE

7.0V

11.0V

22.

ENVIRONMENTAL

CONDITIONS

Temperature:

0°C-40°C

Humidity:

Below

dew

point

23.

TIME

STABLE

OPERATION

AFTER

POWER

ON:

300

sec.

24.

PERMISSIBLE

LINE

NOISE

VOLUME

(with

adapter)

min.

marked

without

malfunction

positive

polarity

90°,

350

ns,

500

pulse

25.

ELECTROSTATIC

TEST

Normal

function

static

electricity

26.

ENCLOSURE

HEAT

BUILD-UP

less

27.

POWER

ON/OFF

spike

noise

—

less

than

300

mVp-p

28.

OUTPUT

LEVEL

(Line

Out)

C4-C5

notes

output

simultaneously,

VOL

MAX,

-6dBm

(±3dB)

29.

NOISE

LEVEL

JIS-A

AVERAGE

GATE

DDL

-76

dBm

TYP

(-70

dBm

MAX)

DDL

OFF

dBm

TYP

(-74dBmMAX)

GATE

OFF

-90

dBm

TYP

(-84

dBm

MAX)

-90

dBm

TYP

(-84

dBm

MAX)

30.

ELECTRICAL

WAVE

INTERFERENCE

FCC

(U.S.A.)

VDE

(W.

Germany)

Certification

for

each

under

review.

TRANSTITTED

DATA

CHANNEL

MESSAGES

0 0 0 n n

n n

n n n n

0 n

n n

Okkk kkkk

Okkk

kkkk

OOOO

0 0

Oppp pppp

0000

0 0

Ovvv

vOOO

Ovvv

vOOO

Ovvv

vvvv

Note

Off

=36-84

Note

k k

=36-84

DCO

Modulation

(4bit

resolution)

VCF

Modulation

(4bit

resolution)

Program

Change

P P

p=0~63

(NOTE

)

Pitch

Bender

Change

(7bit

resolution)

=64

Center

LSB

not

used

•

nnnn

0~15: The

channel

number

set

parameter

87.

But

sequencer

data

fixed

channel

NOTE

The

relationship

between

MIDI

program

numbers

(Oppppppp)

and

display

program

numbers

shown

here.

Display

number

MIDI

Program

number

^°

#12

#87-

#88-

—62

—

SYSTEM

REAL

TIME

MESSAGES

I I

000

I I

Timing

Clock

Start

Stop

Sent

only

during

sequencer

operation.

SYSTEM

EXCLUSIVE

MESSAGES

©DATA

DUMP

0 0

0 0 0

I I

0000

dddd

0000

dddd

0000

ssss

0000

ssss

I I I

Exclusive

Status

KORG

42H

Format

2IH

POLY-800II

OCH

LSB

4bit

t)it|

t)iti

RAM

data

word

MSB

4bitJ

(5376

Byte)

LSB

4b.tj

MSB

4biti

EOX

(N0TE2)

•

DATA

DUMP

sent

only

when

DATA

DUMP

request

received.

NOTE

2688

The

(RAM

data

word)n

least

significant

bits

are

check

sum

data.

DATA

ERROR

I I

0 0

0 0 0

I I

0 0 0

0 0

0 0 0 0

I I

Exclusive status

KORG

Format

POLY-800H

Data

Error

EOX

2IH

OCH

•

Sent

only

when

check

sum

error

occurs

during

data

dump.

RECOGNIZED

RECEIVE

DATA

CHANNEL

MESSAGES

nnn

n n n

1 1

n n

1 1

110

1 1 1

n n

Okkk

kkkk

Okkk

kkkk

Okkk

kkkk

0 0 0

1 1 1

0 0

1 1 1 1

Oppp

pppp

Oxxx xxxx

Oxxx

xxxx

Ovvv

vvvv

0000

Ovvv

vxxx

Ovvv

vxxx

0000

Ovvv

vvvv

Note

Off

(NOTE

Velocity

will

ignored

Note

(NOTE

Velocity

will

ignored

v>0)

Note

Off

DCO

Modulation

bit

resolution)

VCF

Modulation

bit

resolution)

OMNI

Mode

Off

OMNI

Mode

Program

Change

(NOTE

Pitch

Bender

Change

LSB

will

ignored

MSB

will

recognized

v v v

v=64Icenter

•

nnnn

0~15:

Channel

number

set

parameter

87.

When

OMNI

mode

ON,

all

messages

are

received,

regardless

channel

number

setting.

When OMNI

mode

OFF,

the

synthesizer

responds

only

messages

received

the

currently

selected

channel

number.

The

"power

on"

default

OMNI

ON.

NOTE

Note

number

(Okkk

kkkk)

36-84.

Received

data

beyond

this

range

voiced

the

same

note

the

nearest

tave

within

the

range.

Program

number

(Oppp pppp)

0-63.

Data

higher

than

interpreted

the

difference

obtained

subtracting

from

the

data.

SYSTEM

REAL

TIME

MESSAGES

I I

I I I

000

I I

I I I I I

Timing

Clock

(NOTE

Start

Stop

NOTE

Timing

clock

data

can

received

only

the

period

between

reception

start

and

stop

data.

SYSTEM

EXCLUSIVE

MESSAGES

©DATA

DUMP

I I

0 0

0 0 0

0 0

I I

0 0

0000

dddd

0000

dddd

0000 ssss

0000

ssss

I.I

Exclusive

status

KORG

Format

POLY-800H

OCH

LSB

4bir

bit!

RAM

data

word

MSB4bitJ

(5376

Byte)

LSB

4bit

MSB

4bitJ

EOX

Check

Sum

data

(NOTE

)

NOTE

The

(RAM

data

word)n

least

significant

bits

are

check

sum

data.

®DATA

DUMP

REQUEST

0 0

I I

0 0

I I

Exclusive

status

KORG

Format

POLY-800H

Data

Dump

Request

EOX

2IH

OCH

I0H

•

After

receiving

DATA

DUMP

REQUEST,

there

delay

about

300ms

before

the

POLY-800II

begins

DATA

DUMP

transmission.

USING

SYSTEM

EXCLUSIVE

MESSAGES

Communication

between

the

POLY-BOOH

and

computer.

The

POLY

800II

can

send

and

receive

the

following

kinds

information

via

system

exclusive

messages.

This

enables

sequencer

and

other

data

exchange

with

computer

equipped

with

MIDI

interface

and

suitable

software.

Sending

DATA

DUMP:

This

includes

the

sound

data

stored

the

programs

memory,

sequencer

data,

settings

parameters

85,

86,

87,

and

88,

and

chord

memory

data.

This

sent

response

DATA

DUMP

REQUEST.

DUMP

ERROR:

Sent

when

check

sum

error

occurs

during

reception

DATA

DUMP

data.

Receiving

DATA

DUMP:

The

program

data

loaded

the

POLY-800II.

The

contents

this

data

replace

the

sound

data

stored

the

64 programs

memory,

sequencer

data,

settings

parameters

85,86,

87,

and

88,

and

chord

memory

data.

DATA

DUMP

REQUEST:

command

transmit

program

data.

When

this

request

received,

the

POLY-800II

begins

DATA

DUMP

transmission

after

300ms

delay.

■

Setup

shown

here:

Computer

OUT

MIDI

Interface

midi

POLY-800II

Communications

Examples

First

the

computer

obtains

sound

program

and

sequencer

data

from

the

synthesizer

for

editing.

After

editing,

the

data

sent

back

the

synthesizer.

Computer

POLY-800U

Send

Receive

Send

irregularity

detected

the

data

loaded

from

the

computer.

Computer

P0LY-800H

Send

Receive

Send

RAM

data

structure

The

RAM

data

portion

DATA

DUMP

data

organized

shown

here.

MIDI

CHANNEL

SEO DATA

(UNDEFINED)

CHORD

MEMORY

SEO

MODE

SEO

CKL

PROG

CHANGE

DIS/ENA

(UNDEFINED)

PROG

DATA

0 0

a H

3E9H-3F0H

3FIH-3F8H

F B

3FCH-3FFH

400H-A7FH

1000

1664

Actually,

when

this

data

transmitted

MIDI,

each

byte

split

its

least

significant

four

bits

and

sent

starting

from

relative

address

000H.

(UNDEFINED

data

does

not

affect

internal

operation;

only

used

the

check

sum.)

RAM

data

organization

Bit

map

for

MIDI

CHANNEL,

SEQ

MODE,

SEQ

CLK,

and

PROG

CHANGE

0 0

F9H

EAH

FBH

MSB

MIDI

CHANNEL

LSB

SEO

^~MODE

„

SEQ

PROG

CHANGE

Bit

map

relationship

with

parameter

values

front

panel.

MIDI

CHANNEL

SEO

MODE

SEO

CLK

PROG

CHANCE

D/E

0 0 0

FAH

FBH

b3—bO

0000-1

1 1

1-16

(ONE

TIME),

(REPEAT)

(INT),

(EXT)

(DISABLE),

(ENABLE)

Sequencer

data

has

the

following

structure.

ki ki

k; k? k^

k3 k3

End

Rest

Tie

most

significant

bit

Other

notes

exist

same

time.

most

significant

bit

Block

end

that

point

time.

Oknknknknknknkn:

Same

MIDI

note

number.

/24H—54H,\

—8

Example:

CHORD

MEMORY

has

the

following

structure.

Oknknknknknknkn:

Same

MIDI

note

number.

00000000:

End

Data:

B4H,

02H,

B5H,

02H, 01H,

01H,

B7H,

B9H,

34H,

37H,

BCH,

02H,

02H, 02H,

02H,

01H,

00H.

Bit

map

for

each

program.

"•"

Exceeds

byte

unit.

UNDEFINED

data

can

have

any

value;

only

used

the

check sum.

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