Eml Electrocomp 400 series User manual

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

EML

400

SERIES

SEQUENTIAL

SYNTHESIZER

MANUAL

The

EML

400

Series

Sequential

Synthesizer

is

available

in

several

config

urations

to

permit

each

user

a

maximum

of

flexibility.

A

basic

sequencer

consists

of

the

following:

CONTROLLERS

PROGRAM

PANEL

SOURCES

S

MODIFIERS

i

1

Tj

ADDITIONAL

j

.

PROGRAM

,

'

PANEL(S)

'

L_

^^

M.

,j

The

PROGRAM

PANEL

is

used

to

set

up

a

series

or

sequence

of

events.

During

each

event

period,

the

PROGRAM

PANEL

generates

3

independently

adjustable

voltages.

These

voltages

may

be

used

to:

a.

control

a

Voltage

Controlled

Clock

which

determines

the

tine

advance

to

the

b.

control

the

pitch

of

a

Voltage

Control

Oscillator.

c.

control

the

timbre,

loudness,

a

second

pitch,

etc.

of

the

note

by

applying

the

voltage

to

the

Voltage

Control

Filter,

Voltage

Control

Amplifier,

another

Voltage

Control

Oscillator(s),

etc.

The

CONTROLLER

PANEL

contains

the

overall

rate

control,

tuning

controls,

triggering

circuits,

and

controls

for

implementing

pitch

and

timbre

variations.

The SOURCE

PANEL

contains

the

oscillators,

filter,

envelope

generator,

amplitude

shaper

and

their

associated

controls.

This

panel

is

designated

the

401

modulo.

Either

the

EML

100,

EML

101

or

EML

500

may

be

substituted

fur

the 401

module.

(Early

serial

numbered

instruments may

require

a

minor

modification

-

consult

factory.)

The

sequencer

will

also

run

the EML

200

but

the

Voltage

Controlled

Filter

function

is

not

available.

1

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

GENERAL

MODULE

DESCRIPTION:

I.

PROGRAM

PANEL

1.

ADVANCE

SLIDE

SWITCH

This

slide

switch

determines

how the

sequence

advances

from

stage

to

stage.

A.

TRIGGER:

sequence

will

advance

from

trigger

pulse

corresponding

to

the

output

of

the

trigger

function

on

controller

panel.

B.

PUSH:

sequence

will

advance

when

pushbutton

is

depressed.

C.

CLOCK:

sequence

will

advance

under

control

of

the

clock.

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

2.

This

row

of slide

controls

will

generate

a

series

of

voltages

as

the

sequence

advances

from

stage

to

stage.

«

If

-the

associated

slide

switch

is in

the

CLOCK

position,

the

slide

controls

will

determine

the

rate

of

the

clock

pulses

and

hence

the

advance

of

the

sequence

to

the

If

the

slider

is

at

top

of

its

travel

-

HOLD

-

its

sequence

will

not

advance.

As

the

control

is

moved

toward

SKIP,

that

event

will

last for

a

shorter

period.

Finally,

when

the

slide

control

is

near

the

end

of

its

travel

near

SKIP

the

event

will

occur

so

rapidly

that

it

is

not

detectable

and

that

stage

will

effectively

be

skipped.

If

the

Advance

Slide

Switch

is

in

the

OFF

position,

the

Voltage

will

not

be

used.

If

the

slide

switch

is

in

VI,

the

Voltage

is

available

at

the

VI

jack

on

the

CONTROLLER

PANEL

for

use

as

desired.

3.

SET/OFF/RESET

SLIDE

SWITCH

In

SET, the

sequence

is

"set"

to

stage

1

and

will

remain

there.

In

RESET,

all

stages

will

be

inactivated

and

remain

so.

OFF

-

this

position

permits

advance

of the

sequence.

4.

This

row

of

slide

controls

generates

a

series

of

voltages

as

the

sequence

advances,

If

the

associated

slide

switch

is

in

the

QUAN

position,

the

voltage

determined

by

the

slide

controls

and

their

associated

Octave

switches

will

be

routed

to

the

Quantizer

within

the

CONTROLLER

PANEL

and

hence

to

the

Voltage

Controlled

Oscillators

and

Filter.

It

is

this

Quantizer

Circuit

which

converts

the

infinitely

variable

Voltage

from

the

slide

controls

into

discrete

stepped

voltages

corresponding

to

the

pitches

of

the

scale.

In

the

OFF

position

the

voltage

is

not

used.

In

V2

position,

the

control

slider

voltage

is

routed

to

the

V2

jack

on

the

CONTROLLER

PANEL.

The

Octave

Slide

Switch

associated

with

each

of

the

independent

stages

will

then

have

no

function.

5.

The

slide

controls

in

this

row

generate

a

series

of

voltages

as

the

sequence

advances.

The

slide

switch

determines whether

the

voltage

is

directed

to

V3

or

V4

jacks

on

the

CONTROLLER

PANEL

or

not

used.

The

voltage

may

be

patched

from

V3

or

V4

to

the

filter

control

input

to

vary

the

timbre

of the

pitch

for

each

stage,

or

a

number

of

other

places

to

control

a

different

parameter.

6.

GATED

PULSE

A

pulse

occurs

at

this

jack

whenever

the

sequence

advances

to

a

stage where

a

slide

control

in

the

Control

Voltage

row

marked

5

in

the

picture,

is

more

than

20%

up

from

its

bottom

position.

The

GATED

PULSE

may

be

used

for

selec-

.

tively

triggering

other

functions

on the

100,

101

and

200

as

well

as

controlling

the

advance

of

a

sequence

on

an

additional

PROGRAM

PANEL.

1

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

7.

16

STAGES

IN-OUT

In,t,hI;HK.

li

"1°°P"

the

sec>uence-

If

one

program

panel

is

used,

i

n

tt"66"

thG

two

J?cks

wil1

caus*

the

16th

stage

to

trigger

the

first

so

that

the

sequence

will

repeat.

No

patchcord

-

no

repeat.

PANEITS

are

avai>1ab^

a

patchcord

is

used

between

the

hP

OUT

^

rTtEane1

^

thG

IN

jack

°f

the

Second

PR0GRAM

PANEI-

and

win

ihL

22

°!

55e SGC°nd

t0

the

IN

jack

of

the

first-

The

sequencer

will

then

go

through

32

stages

before

repeating.

H

8.

EXPAND

PLUG1.

?

t0

thG

C0NTR0LLER

PANEL

through

the

cable

provided;

Jo

ethPr

PRnrRAMin?

Pane\l'

lhe

Cable

from

the

CONTROLLER

PANEL

may

g

tLVlS

k

i

connector-

If

^^e

are

more

than

2

Programming

Panels,

they

must

be

interconnected

with

an

additional

cable.

II

CONTROLLER

PANEL

I?

ij

3.

ELECTROCOMP

SEQUENCER

£lf

CTRONIC

MUSIC

tAM..

.NC.

VCRNON.

CONN.

MOM

2.

1.

V

4.

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

EML 401

MODULE

-

SOURCES

AND MODIFIERS

PANEL

SOURCES

The

EXTERNAL

VOLUME

slide

control

and the

associated

external

jack

are

used

to

bring

external

audio

signals

into

the

401

panel.

The

OSC

1

volume

control

determines

the

volume

of

the

Oscillator

1

signal

applied

to

the

Filter.

The

switch

below

the

slide

control

selects

a

Sawtooth

or

Square

waveform

or_

removes

the

Oscillator

1

signal

from

the

Filter.

The

OSC

2

volume

control

determines

the

volume

of

the

Oscillator

2

signal

applied

to

the

Filter.

The

switch

below

the

slide

control

selects

a

Sawtooth

or

Square

waveform

or

removes

the

Oscillator

2

signal

from

the

Filter.

OSC

2

TUNE.

Oscillator

2

may

be

tuned

to

a

unison

with

Oscillator

1

or

to

more

than

an

octave

above.

The

switch

below

the

tune

control

determines

the

degree

of

PHASE

LOCKING

between

OSC

1

and

OSC

2.

With

the

switch

in

PL2

there

is

a

strong

tendency

for

Oscillator

2

to

"lock"

at

a

pitch which

is

a

whole

numbered

ratio

to

OSC

1

such

as

at

a

3rd,

4th,

or

5th.

In

PL1,

the

locking

influence

is

diminished

and

"lock"

may

be

accomplished

at

other

musical

inter

vals.

In

OFF,

the

locking

effect

is

removed.

With

the

PHASE

LOCK

Switch

in

PLl or PL2,

the

OSC

2

TUNE

slide

control

will

sound

"scratchy"

as the

pitch

will

jump

into

"lock"

as

whole

numbered

ratios

are

approached.

If

a

clicking

sound

is

heard,

the

TUNE

control

should

be

adjusted

slightly

down.

A

little

practice

will

pay

dividends.

MODIFIERS

FILTER.

The

Filter

TUNE controls

the

cut

frequency

of the

Filter.

(If

you

are

unfamiliar

with

the

Filter,

consult

the

EML

101, or 500

manual.)

The

Switch

labeled

0.,

.5,

1.0

indicates

that

degree

to

which

the

Filter

"tracks"

the

Oscillators

and

hence

the

degree

to

which

the

timbre

remains

constant

over

the

range

of

the

instrument.

In 1,

the

timbre

will

remain

con

stant,

in 0,

the

timbre

may

change

dramatically

becoming

more mellow

in

the

higher

registers.

The

.5

position

gives

intermediate

results.

The

RESONANCE

control

is

similar

to

that

on

the

EML

100/101/500,

the

slide

switch

below

selects

LOW

PASS,

BAND

PASS

or

HIGH

PASS

filters.

Note

that

at

High

Resonance

condition

there

is

little

difference

between

the three.

At

Low

Resonance,

the

difference

is

dramatic

and

often

delightful.

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

Vext

This

input

may

be

used

to

control

the

EML

401

module

by

the

EML

100/101.

A

patchcord

must

be

used

from

the

MULT jack

to

the

Vext

at

the end

of

the

dashed

arrow.

The

rotary

TUNE

pot

is

used

to

set the

pitch

of

Oscillators

1

and

2.

The

EML

100/101

CM2

jack

is

patched

to

Vext.

A

patchcord

from

the

EML

100/101

GATE

output

to

the

CONTROLLER

PANEL

TRIGGER

Input

will

cause

envelope

initiation

with

the

TRIGGER

switches

in

SLOW

and

EXT.

The

Oscil

lators

and

Filter

will

not

be

controlled

by

the

sequencer

in

this

situation.

(See the

section

titled

"Interfacing

the

EML 401

Module

with

either

the

EML

101

or

EML

500".)

ENVELOPE

The

EML

401

contains

an

Envelope

Generator

in

which

the

ATTACK

and

DECAY

times

may

be

Voltage

Controlled.

When

the

selector

switch

below

is

in

OFF

position,

the

ATTACK

and

DECAY

slide

controls

will

function

in

normal

fashion.

When

the

selector

switch

is

in

mid

position,

the

DECAY

will

be

proportional

to

Vclk

voltage

-

(Vclk

comes

from

the

top

row of sliders

on

the

PROGRAM

PANEL, hence

the

DECAY

time

will

be

proportional

to

the

length

of

notes

in

the

sequence).

In

the

uppermost

position, both

ATTACK

and

DECAY are

Voltage

Controlled.

The

associated

jack

may

be

used

to

substitute

any

desired

external

voltaqe

for

Vclk.

MODULATOR

The

MODULATOR

is

a

combined

Ring/Amplitude

Modulator. Oscillator

2

is

the

normal

modulation

source,

but

any

signal

may

be

substituted

at

the

associated

jack.

OUTPUT

The

OUTPUT

slide

control

determines

the

audio

output

level

at the

HI

and

LO

jacks. Use

the

HI

output

jack

for

Hi-Fi

and

similar

amplifiers.

Use

the

LO

output

jack

for

guitar

amplifiers

and

low

level

mixers.

The

PHONES

output

is

unaffected

by the

output

slide

control.Use

high

impedance

phones

(600

ohms).

Now that

we've

gotten

through

the

description

of

how

things

work,

it's

time

to

put

it

all

together

and

make

some

music.

This

section

assumes

you

have

the

401

module.

If

not,

turn

to

the

last

part

of

this

section

for

instructions

in

using

the

100/101/500

as

signal

sources

and

modifier.

1-

Plug

the

EML

400

into

the

AC

power

source.

If

you

don't

have

a 3

wire

grounded

socket,

use

a

universally

available

adapter.

Don't

cut

the

3rd

prong

of

the

power

cord.

2.

Connect

cable

provided

between

the

connector

on

the

CONTROLLER

PANEL

and

any

connector

on

a

PROGRAM

PANEL.

3.

Turn

the

power

on

and

adjust

all

controls

as

described

and

shown

in

the

accompanying

section(s).

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

SCALING

AND

FINE

TUNING

THE

EML

400

SEQUENCER

C

The

procedure

for

"tuning11

the EML

400

Sequencer

is

divided

into

two

major

steps

and

their

respective

substeps.

The

first

major

step

shall

be

known

as

"Readying

the

Sequencer".

That

is

to

say,

all

of

the

functions

that

directly

influence

"tuning"

are

adjusted

to

facilitate

the

actual

tuning

procedure.

All

of

the

sequencer

functions

which

do

not

bear

directly

on

the

tuning

are turned

off.

The

second

major

step

is

the

"Scaling

and

Fine

Tuning

for

the

EML

400

Sequencer".

PART

I

READYING

THE

EML

400

SEQUENCER

A.

CONTROLLERS

1.

CLOCK

Switch

to

Vclk

and

move

the

clock's rate

slider

near

the

bottom

of

its

travel•

2.

TRIGGER

The

trigger

routing

switch

should

be

set

to

INT.

(internal).

Switch

the

trigger

input

to

FAST.

3.

QUANTIZER

Explained

in

Part

2.

4.

OSCILLATOR

&

FILTER

CONTROL

MIXERS

All

of

the

application

sliders

associated

with

either

of

these

two

con-

controller

mixers

should

be

off

-

sliders

set

to

the

bottom

of

their

travel

B.

SOURCES

1.

OSCILLATOR

#1

Oscillator

1

shall

be

used

as

the

pitch

source

for

tuning

the

sequencer.

Select either

the

Square

or

Sawtooth

waveform

with

the

waveform

SELECT/OFF

switch

and

raise

Oscillator

l's

volume

slider.

2.

OSCILLATOR

#2

OFF

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

3.

OCTAVE

TRANSPOSE

SWITCH

(located

just

above

the

CONTROLLER

section)

Select

to

0,

zero.

C.

MODIFIERS

1.

FILTER

Select

(.he

LOW

PASS

Filter

(LP)

and

set

the

Filter Tracking Switch

to

lull

vij.

The

IUNE

slider

should

be

moved

approximately

3/4"

from

the

bottom.

The

Resonance

Slider

to

the

half

way

point

in

its

travel.

2.

ENVELOPE

For

tuning

purposes,

the

voltage

control

features

of the

envelope

gener

ator

are not

desired,

set

the

ENV

VC

switch

to

OFF.

The

ATTACK

and

DECAY

time

sliders

should

both

be

set

fairly

high

(half

way

or

more).

3.

MODULATOR

OFF

4.

OUTPUT

Adjust

loudness

output

of

the

sequencer

(in

conjunction

with

amp)

to

a

comfortable

level.

v

D.

PROGRAM

PANEL

1.

ADVANCE

SLIDE

SWITCH

Set

to

the

CLOCK

position

2.

CONTROL

VOLTAGE

SLIDERS

-

ROW

1

Set

Stage

#l's

slider just

above

the

SKIP

position.

3.

THE

VOLTAGE/OFF

SELECT

SWITCH

Place

in

the

Vclk

position.

4.

SET/OFF/RESET

SWITCH

Set

to

RESET

5.

QUAN/0FF/V2

SLIDE

SWITCH

Set

to

QUAN.

!

6.

THE

V3/OFF/V4

SLIDE

SWITCH

I

Set

to

OFF.

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

ELECTROCOMP

SEQUENCER

*

ELf

CTRONIC

MUSIC

LA88..

INC.

VERNON.

CONN.

06OM

CONTROLLERS

•

40

-#

sate

tune

co

Vise

fine

I~*"I TRIGCtB

raAauui

*-*

scaling

s

fine

tuning

the

sequencer

ELECTROCOMP

EML

OCTAVE

f

i .

:i..a

11

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

PROGRAMMING

THE

EML

400

SEQUENCER

The

"PROGRAMMING"

procedure

consists

of

two

steps,

they

are

as

follows:

1)

"Program

Readying"

the

Sequencer.

2)

"Programming

the

Sequencer",

followed

by

the

actual

running

of

the

Sequencer.

PART

I

READYING

THE

EML

400

SEQUENCER

Program

Readying

the

EML

400

Sequencer

for

a

PROGRAM

consists

of

Parts

1

and

2

of

the

section

Scaling

and

Fine

Tuning

the

EML

400

Sequencer.

For

details

reread

the

aforementioned

section

and

carefully

note

diagram

Rl.

READYING

the

EML

400

Sequencer

allows

the

user

to

"program"

the

Sequencer

without

"confusing"

it

or

the

user!

It

is

a

failsafe

procedure.

After

setting

the

desired

scale

and

tuning

the

Sequencer,

the

actual

program

ming

of

the

Sequencer may

commence.

PART

2

PROGRAMMING

THE

EML

400

SEQUENCER

Moussorgsky's

Promanade

Theme

from

Pictures

at

cm

Exhibition

will

be

used

as

the

PROGRAM

example.

A.

SET/OFF/RESET

SLIDE

SWITCH

Position

to

SET

B.

ADVANCE

SLIDE

SWITCH

Set

from

CLOCK

to

PUSH.

This

will

activate

the

TRIGGER

and the

QUANTIZER

sections.

C.

PROGRAMMING

THE

PITCH

AND

OCTAVE/STAGE

OF

THE

SEQUENCE

1.

Position

the

SET/OFF/RESET

Slide

Switch

to

OFF.

Move

Stage

l's

pitch

slider

until

LED

#8

lights.

Set

the

Octave

switch

for

Stage

#1

in

the

zero

position.

The

zero

Octave

LED

will

light.

2.

Depress

the

pushbutton

associated

with

the

Advance

Slide

Switch

once

or

until

the

light

indicating

Stage

#2

is

on.

Move

Stage

#2's

pitch

slider

until

LED

#6

lights.

Set

the

Octave

switch

to

zero.

NOTE:

If

the

pushbutton

is

held,

the

Sequencer

continues

to

advance

until

the

button

is

released.

If

you

are

advancing

the

Sequencer

via

the

pushbutton

and

you

inadvertantly

go

past

the

stage

you

wished,

simply

move

the

SET/OFF/RESET

slide

switch

to

RESET

then

SET,

and

finally

to

OFF.

This

will

bring

you

back

to

Stage

#1

and

you

will

be

ready

to

advance

with

the

pushbutton.

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

3.

Advance

the

Sequencer

to

Stage

#3.

Position

the

pitch

slider

until

LED#11

lights;

set

the

Octave

switch

to

zero.

4.

Continue

the

process

through

Stage

16

according

to

the

LED

numbers

and

positions

of

the

octave

slide

switches

marked

in

diagram

P-2.

Because

the

theme

is

13

events

long,

the

remaining

3

stages

have

been

set

to

REST

-

no

pitch

is

programmed

or

sounds.

5.

It

is

good

practice

to

go

through

the

sequence

again

just

to

double

check

and

make

sure

all

the

pitches

and

octave

settings

are

correct.

D.

SETTING

THE

DURATIONS

OF

EACH

PITCH/STAGE

IN

THE

SEQUENCE

-

PROGRAMMING

THE

RHYTHMN

-

1.

Diagram

P-3

indicates

the

13

slider

positions

for

the

timing-rhythmn

of

the

sequence.

It

is

ncrt

necessary

to

pushbutton

advance

the

Sequencer

to

set

the

duration

for

each

respective

stage.

The

duration

slide

controls

for

stages

14-16

can

be,

at

your

descretion,

set

to

SKIP

(moving

the

slider

to

the

bottom

of

its

travel)

or

set

to

any

time

increment

up

tp

HOLD

(at

HOLD

the

sequence

will

not

advance

until

the

slider

is

dropped.to

a

definite

time

value).

E.

DEFINING

OVERALL

CHARACTERISTICS

OF

THE

SEQUENCE

1.

The

tempo

of

the

sequence

is

controlled

by

the

CLOCK

slider

control

Vclk

OFF

Switch.

Set

the

CLOCK

slider

the

third

hash

mark.

2.

SOURCES:

Oscillator

2

may

be

turned

on

to

add

another

voice;

a

waveform

selected,

tuned,

and

its

volume

slider

raised.

The

option

is

open

to

tune

Oscillator

2

to

unison

or

various

intervals

in

relation

to

Oscillator

1

giving

an

effective

chordal

effect.

3.

Octave

transposition

of

the

oscillators

and

filter

is

achieved

with

the

OCTAVE

switch

above

the

CONTROLLER

section.

This

switch

determines

the

overall

range.

4.

FILTER:

The

quality

of

the

sound

is

defined

by

the

Filter.

Experiment

freely

with

the

TUNE

and

RESonance

sliders,

Filter

Select

(HP,

BP,

LP)

and

the

Filter

tracking

(0,

.5,

1)

switches

to

determine

the

timbral

setting

you

wish.

^

5.

ENVELOPE:

The

tenvelope

controls

the

loudness

pattern/pitch/stage.

When

the

envelope

is

in

the

OFF

position,

the

ATTACK

and

DECAY

sliders

determine

the

time

for

their

respective

functions.

Moving

the

switch

to

either

the

Voltage

Control

of

Envelope

Decay

or

Voltage

Control

of

Envelope

Attack

and

Decay,

means

that

the

envelope

no

longer

defines

a

time

unit

for

ATTACK

and

DECAY,

but

rather

the

voltage

controlled

function

now

"reads

time"

or

"reads

voltage".

The

ATTACK

and

DECAY

sliders

now

determine

proportion,

txpenment

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

with

the

VOLTAGE

CONTROLLED

ENVELOPE.

It's

a

unique

and

vitalizing

new

synthesizer

function/feature.

6.

MODULATOR:

Ring or

Amplitude

Modulation

can

be

added

to

the

signal(s)

out

of

the

filter.

F.

RUNNING

THE

SEQUENCER

1.

SET/OFF/RESET

SLIDE

SWITCH

Position

in

RESET

2.

THE

ADVANCE

SLIDE

SWITCH

TRIG/PUSH/CLOCK

switch

should

be set

to

CLOCK.

3.

To

"run"

the

sequence

simply

move

the

SET/OFF/RESET

slide

switch

to

SET

and

then

to

OFF.

4.

To

have

the

Sequencer

repeat

be

sure

there's

a

patch

cord

between

the

IN

and

OUT

jacks

near

the

bottom

of

the

PROGRAM

panel.

G.

DIAGRAM

P-5

Patch

5

diagrams

some

special

effects

that

can

be

achieved

with

the

EML

400

Sequencer

and

the

EML 401

module.

For

example,

V3

or_

V4

can

be

used

to

change

the

timbre

of

each

stage;

or

voltage

control

the

envelope

to

vary

the

attack

and/or

decay;

or V3

or

V4

can

be

used

as

a

modulating

signal

and

vary

the

dynamics

of

the

piece.

Many

uses

are

possible.

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

ELECTROCOMP*

SEQUENCER

ELECTRONIC

MUSIC

LABS

.

'NC.

VMNON.

COM*.

o

DIAGRAM

R-l

READYING

the EML

400

SEQUENCER

ELECTROCOMP

EML

<4O1

OCTAVt

i

.

u..u

a

SOURCES

I

1

txr

osc

1

osc

?

VOt

VOl

tUNI

MOOIFIERS

OltAt

it

i

<i

INV

OSC2/E<I

OUIPUI

IO

*<ONt

S

9

:C

II

s

'X

7

9 9

y

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

ELECTROCOMP

SEQUENCER

CLECTRONIC

MUSIC

LABS..

INC.

Vf

ANON.

CONN.

MOM

DIAGRAM

P-l

PROGRAMMING

THE

EML

400

ELECTROCOMP*

EML

1

-....•♦

ii

QU

UN

W

QUAN

*«UIT

Vui

V,

V2

V3

V«

SOURCES

EXT

OSCI

OSC

7

voi voi voi

MODIFIERS

■k*

CNvElOfC

MOO

OUTPUT

ATTACK

DECAY

MUIT

Veil

y

o

'

i i

i

tO

'HONES

(

>BJ-)i

f^

12

I)

U

IS 16

•-E3-4

I

t

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

ELECTROCOMP*DIAGRAM

p-2

PROGRAMMING

THE

EML

400

SEQUENCER

ELICTHON1C

«U««

LAO*.

INC.

VBKNON.

CONN.

O0OM

a..ii

£XT

!XT

EXT

ELECTROCOMP

EML

4O1

SOURCES

x

1^

1^—

EXT

OSC

1

OSC

2

■E

MODIFIERS

**

ENVELOTC

MOO

OUTPUT

ATTACK

DECAY

i"i-^i'

'i

i i

MUIT

Va«l

ENV

OSC

1

/EXT

IO

PHONES

10

11

13

«,».

I

1

-

I i

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

I

ELECTROCOMP*

DIAGRAM

P-3

SEQUENCER

MUSIC

LAM.

me.

VMMON.COMN.M

V«al

♦YOUAOI

OUT

IN

PROGRAMMING

THE

EML

400

11

ELECTROCDMP

EML

<4O1

SOURCES

EXT

OSCI

OSC

2

j

X

: :

v;

:

V

:

vot^

voi

yft^

TUN!

MULT

V»«l

.

MODIFIERS

MOO

OUTPUT

[TACK

DtCAY

Ul

Vai/V»t

£NV

OSC2/EKT

OUTPUT

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

1.

CLOCK

The

CLOCK

slide

control

effects

the

Wmpo

of

the

sequence.

The

Vclk/OFF

switch

determines

whether

the

CLOCK

rate

is

controlled

by the

Vclk

voltage

from

a

PROGRAM

PANEL.

In

OFF,

the

sequence

will

advance

at

a

constant

tempo

controlled only

by

the

Clock's

Slide

Control,

it

ignores

the

voltages

set

by

the

first

row

sliders.

An

external

control

voltage

from

an

appropriate

source

may

be

patched

into

Vext

to

further

control

the

tempo

of

a

sequence.

2.

QUANTIZER

The

TUNE

control

is

used

to

transpose

the

pitch

produced

by

the

QUANTIZER

output

voltage.

The

COARSE

and

FINE

controls

are

used

to

adjust

the

tuning

interval.

;

3.

The

QUANTIZER

voltage

is

applied

to

the

Light

Emitting

Diodes.

The

lights,

numbered

1-13

(vertical

column

of

lights,

left

of

the

CONTROLLER

PANEL)

corres

pond

to

an

octave

and

one note

on the

12

tone

scale.

The

TUNE

control

may

be

used

to

transpose

pitch

so

that

the

#1

light

corresponds

to

a

particular

pitch,,

such

as

a

C.

If

the

interval

controls

are

adjusted

for

the

12

tone

scale,

light

2

will

correspond

to

C#,

light

3

to

D,

etc.

Light

13

will

be

a

C,

up

one

octave

from

light

1.

The

green light

indicates

the

active

stage

is

in

REST.

No

pitch

has

been

set,

nor

will

a

pitch

sound.

The

-1,

0,

+1

lights

indicate

the

octave

setting

of

the

active

sequencer

stage.

In

tuning

the

instrument

to

the

proper

interval,

note

that

in

the

-1

octave,

light

1

condition,

the

COARSE

and

FINE

Quantizer

controls

have

no

effect.

This

provides

a

convenient

reference

point.

It

is

necessary

to

set the instru

ment

to

this

condition

and

adjust

the

pitch

to

a C

or

any

other

convenient

pitch

with

the

QUANTIZER

TUNE

control,

then

go

to

a

+1

octave,

light

13

condi

tion

and

use the

FINE

control

to

adjust

the

pitch

to

precisely

3

octaves

above

the

The

COARSE

control

is

used

for

generating microtonal

scales.

(See

the

section

on

Scaling

and

Fine

Tuning

the

EML

400

Sequencer.)

4.

TRIGGER

The

TRIGGER

section

performs

a

variety

of

functions.

It

consists

of two

switches

and

two

jacks.

The

TRIGGER

OUT

jack provides

a

pulse

which

may

be

used

to

trigger

the EML

101,

200

or

500.

The

output

of

the

INTERNAL/EXTERNAL

slide

switch

is

routed

to

the

envelope

of

the

401

module.

In

INTERNAL

position,

a

trigger

pulse

will

be

directed

to

the

envelope

at

each

clock

advance

except

for

rests

and

skips

In

the

EXTERNA!

position,

pulses

inputted

at

the

TRIGGER

IN

jack

will

be

directed

to

the

envelope,

and

will

cause

the

sequence

to

advance

if

the

PROGRAM

PANEL

Advance

Switch

is

in

the

TRIGGER

position.

The

TRIGGER

Input

Switch

will

normally

be

in

the

FAST

position

unless

a

"noisy"

source

such

as

the

EML

100/101

Gate1

Out

signal

is

used

to

advance

the

sequence.

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

5.

OSCILLATORS

This

is

an

OSCILLATOR

CONTROL

MIXER

used

to

provide

vibrato

and

transposition

voltages

to

the

Oscillators.

The

two

jacks

labeled

EXT

are

used

to

bring

external

control

voltages

to

the

Oscillators.

The

slide

control

labeled

ENV

norma-ly

has

envelope

voltage

applied

to

it

unless

an

external

voltage

is

patched

in

at

the

EXT

jack

immediately

below

it.

6.

FILTER

This

is

a

FILTER

CONTROL

MIXER

used

to

provide

additional

timbre

control

volt

ages

to

the

Filter.

The

two

jacks

labeled

EXT

are

used

to

bring

external

control

voltages

to

the

Filter.

The

slide

control

labeled

ENV

normally

has

envelope

voltage

applied

to

it

unless

another

voltage

is

patched

in

at

the

EXT

jack

immediately

below

it.

7.

OCTAVE

SWITCH

The

Octave Switch

transposes

the

pitch

set

at

the

active

stage

by

two

octaves.

Both

Oscillators

and the

Filter

are transposed.

8.

EXPAND

OUT

CONNECTOR

The

cable

provided

should

be

connected

between

this

connector

and

one

on

the

PROGRAM

PANEL.

9.

LINEAR

QUANTIZE

JACK

Provides

pitch

voltage

output

to

the

SEQUENCER

INput

on

the

EML

101

and

500.

All

EML

100's

and

early

serial

numbered

EML

101's

may

require

minor

modification.

See the

back

of

the

manual.

On

the

EML

101"s

with

serial

numbers

646

or

above,

the

CM3

jack

has

been

modified

to

accept

the

SEQUENCER.

INPUT.

I

10.

EXPONENTIAL

QUANTIZE

JACK

Provides

pitch

voltage

output

to

EML

200

Voltage

Control

Oscillators.

11.

MULTIPLE

Two

3

jack

multiples

are

provided.

12-

Vclk

VI

V2

These

Voltages appear

at

jacks

for

further

use

as

determined

by

the

positions

of

the

various

voltage

V3

routing

switches

on

a

PROGRAM

PANEL.

V4

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

PART

II

SCALING

AND

FINE

TUNING

THE

EML

400

SEQUENCER

A.

QUANTIZER

Part

1

Set

the

COARSE

slider

so

it

corresponds

to

12.

12

represents

12

tones/octave,

the

semitone

scale.

The

various

scales

set

by

the

COARSE

control

span

12

tones/octave

up

to

60

tones/octave.

Temporarily

place

the

FINE

control

slider

in

the

middle

of

its

travel.

Fine

tuning

the

sequencer

to

a

reference

is

realized

utilizing

the

FINE

slide

control

-

the

procedure

for

this

is

detailed

in

QUANTIZER

PART

2.

B.

SET/OFF/RESET

SLIDER

SWITCH

1.

Move

this

switch

from

the

RESET

position

to

the

SET

position.

When

this

switch

is

in

the

RESET

position,

LED

#1

should

be

on.

(The

vertical

column

of

QUANTIZER

LED'S

juct

left

of

the

CONTROLLERS

section.) Switching

to

SET,

an

LED

numbered

1-13,

or

the

RECT

LED

(the

green

LED)

will

appear.

This

is

completely

dependent

on

the

position

of

the

slider

in

Control

Voltage

Row

#2

of

Stage

#1.

In

addition,

an

Octave

light

will

light,

depending

on

which

position

Stage

l's

Octave

Switch

is in.

2.

The

first slide

of

Control

Voltage

Row

#2

(Stage

#1)

should

be

moved

all

the

way

to

the

bottom

of

its

travel

until

LED

#1

lights.

The

Octave

switch

associated

with

Stage

1

positioned

to

-1.

The

corresponding

LED

will

appear.

C.

QUANTIZER

Part

2

1.

Using

the

TUNE

slider

in

the

QUANTIZER

section

tune

the

sequencer

to

the

pitch

(frequency!

of

your

reference

(or

as

you

desire).

Adjust

the

TUNE

slider

until

they

no

longer

"beat".

2.

Increase

the

pitch

of the

reference

source_

by

two

octaves

(or

triple

frequency).

Now

shift

the

Octave

switch

associated

with

Stage

1

to

the

+1

position.

Use

the

H_NE

slide

control

to

tune

the

two

pitches

until

the

"beating"

ceases.

The

Sequencer

is

now

tuned

and

octavated!

It

is

ready

to

PROGRAM!

NOTE Diagrams

A-l

and

A-2

Scan by Manual Manor

http://www.markglinsky.com/ManualManor.html

EML ELECTROCOMP 400 Series User manual

Popular Recording Equipment manuals by other brands